Women's Health

BUDAPEST, Hungary — A single dose of intravenous esketamine during delivery or cesarean section appears to reduce the risk for postpartum depression (PPD) by more than 50% in the first 6 weeks, a new meta-analysis suggested. However, the long-term safety and efficacy of the drug are still unclear.

Study investigator Angelina Kozhokar, MD, Department of Medicine, Universitat Internacional de Catalunya, Barcelona, Sant Cugat del Valles, Spain, told this news organization she was “surprised” by the size of the PPD risk reduction associated with the drug.

However, she added, “it’s important to consider that preliminary studies on a lot of medications used for postpartum depression have also shown very big effect sizes.”

Dr. Kozhokar believes that as more studies examining esketamine for PPD are conducted, “we will see more definitive effect sizes, and the safety profile for this new treatment” will become clearer.

The findings were presented at the European Psychiatric Association (EPA) Congress.
 

Significant Reduction

As previously reported by this news organization, intranasal esketamine (Spravato, Janssen) was shown to be superior to extended-release quetiapine (Seroquel, AstraZeneca), an atypical antipsychotic, for treatment-resistant depression.

With up to 13% of women experiencing PPD in the perinatal period, the researchers sought to examine the impact of esketamine administered prophylactically during labor or cesarean section on the incidence of the disorder.

They searched the PubMed, Scopus, and Google Scholar databases for randomized controlled trials examining the efficacy of esketamine and screened for PPD using the Edinburgh Postpartum Depression Scale (EPDS).

While the intranasal spray is the only form of esketamine approved by the US Food and Drug Administration, an injectable solution is also available. The researchers identified seven eligible trials that included a total of 1287 women. Of these participants, 635 (49.3%) received esketamine. Esketamine was delivered as either patient-controlled intravenous analgesia or a single intravenous dose during delivery or cesarean section.

Across the seven trials, esketamine was associated with a significant reduction in PPD at 1 week after delivery at a risk ratio vs placebo of 0.459 (P < .05). At 6 weeks, the reduction in PPD incidence was maintained, at a risk ratio of 0.470 (P < .01).

However, Dr. Kozhokar pointed out that the EPDS is a subjective measure of PPD, and the studies used different cutoff scores for depression, ranging from 9 to 13 points.
 

Unanswered Questions

She also cautioned that the adverse effects of esketamine on maternal and neonatal health need to be assessed, as well as the long-term cost/benefit ratio of prophylactic treatment.

All seven studies included in the meta-analysis were conducted in China, which limits the generalizability of the findings.

“I suppose they were quicker to get to the topic than the rest of the world,” Dr. Kozhokar said, while also suggesting that, potentially, “we are more regulated here in Europe.”

She pointed out that there is “an important safety concern about the use of medications such as ketamine and esketamine” in terms of the potential for addiction and the effect on babies over the long term, which is currently unknown.

Session chair Linda Rubene, MD, a psychiatrist in the Department of Psychiatry and Narcology at Riga Stradinš University, Riga, Latvia, welcomed the study.

“If we had more options to treat postpartum depression and to treat depression during pregnancy, it would be a great improvement,” she said.

However, she noted, because there are no long-term outcome data for esketamine in PPD, more study is needed. It is possible, said Dr. Rubene, that esketamine may not work for all women.

The investigators and Dr. Rubene reported no relevant financial disclosures.

A version of this article first appeared on Medscape.com .

BUDAPEST, Hungary — A single dose of intravenous esketamine during delivery or cesarean section appears to reduce the risk for postpartum depression (PPD) by more than 50% in the first 6 weeks, a new meta-analysis suggested. However, the long-term safety and efficacy of the drug are still unclear.

Study investigator Angelina Kozhokar, MD, Department of Medicine, Universitat Internacional de Catalunya, Barcelona, Sant Cugat del Valles, Spain, told this news organization she was “surprised” by the size of the PPD risk reduction associated with the drug.

However, she added, “it’s important to consider that preliminary studies on a lot of medications used for postpartum depression have also shown very big effect sizes.”

Dr. Kozhokar believes that as more studies examining esketamine for PPD are conducted, “we will see more definitive effect sizes, and the safety profile for this new treatment” will become clearer.

The findings were presented at the European Psychiatric Association (EPA) Congress.
 

Significant Reduction

As previously reported by this news organization, intranasal esketamine (Spravato, Janssen) was shown to be superior to extended-release quetiapine (Seroquel, AstraZeneca), an atypical antipsychotic, for treatment-resistant depression.

With up to 13% of women experiencing PPD in the perinatal period, the researchers sought to examine the impact of esketamine administered prophylactically during labor or cesarean section on the incidence of the disorder.

They searched the PubMed, Scopus, and Google Scholar databases for randomized controlled trials examining the efficacy of esketamine and screened for PPD using the Edinburgh Postpartum Depression Scale (EPDS).

While the intranasal spray is the only form of esketamine approved by the US Food and Drug Administration, an injectable solution is also available. The researchers identified seven eligible trials that included a total of 1287 women. Of these participants, 635 (49.3%) received esketamine. Esketamine was delivered as either patient-controlled intravenous analgesia or a single intravenous dose during delivery or cesarean section.

Across the seven trials, esketamine was associated with a significant reduction in PPD at 1 week after delivery at a risk ratio vs placebo of 0.459 (P < .05). At 6 weeks, the reduction in PPD incidence was maintained, at a risk ratio of 0.470 (P < .01).

However, Dr. Kozhokar pointed out that the EPDS is a subjective measure of PPD, and the studies used different cutoff scores for depression, ranging from 9 to 13 points.
 

Unanswered Questions

She also cautioned that the adverse effects of esketamine on maternal and neonatal health need to be assessed, as well as the long-term cost/benefit ratio of prophylactic treatment.

All seven studies included in the meta-analysis were conducted in China, which limits the generalizability of the findings.

“I suppose they were quicker to get to the topic than the rest of the world,” Dr. Kozhokar said, while also suggesting that, potentially, “we are more regulated here in Europe.”

She pointed out that there is “an important safety concern about the use of medications such as ketamine and esketamine” in terms of the potential for addiction and the effect on babies over the long term, which is currently unknown.

Session chair Linda Rubene, MD, a psychiatrist in the Department of Psychiatry and Narcology at Riga Stradinš University, Riga, Latvia, welcomed the study.

“If we had more options to treat postpartum depression and to treat depression during pregnancy, it would be a great improvement,” she said.

However, she noted, because there are no long-term outcome data for esketamine in PPD, more study is needed. It is possible, said Dr. Rubene, that esketamine may not work for all women.

The investigators and Dr. Rubene reported no relevant financial disclosures.

A version of this article first appeared on Medscape.com .

BUDAPEST, Hungary — A single dose of intravenous esketamine during delivery or cesarean section appears to reduce the risk for postpartum depression (PPD) by more than 50% in the first 6 weeks, a new meta-analysis suggested. However, the long-term safety and efficacy of the drug are still unclear.

Study investigator Angelina Kozhokar, MD, Department of Medicine, Universitat Internacional de Catalunya, Barcelona, Sant Cugat del Valles, Spain, told this news organization she was “surprised” by the size of the PPD risk reduction associated with the drug.

However, she added, “it’s important to consider that preliminary studies on a lot of medications used for postpartum depression have also shown very big effect sizes.”

Dr. Kozhokar believes that as more studies examining esketamine for PPD are conducted, “we will see more definitive effect sizes, and the safety profile for this new treatment” will become clearer.

The findings were presented at the European Psychiatric Association (EPA) Congress.
 

Significant Reduction

As previously reported by this news organization, intranasal esketamine (Spravato, Janssen) was shown to be superior to extended-release quetiapine (Seroquel, AstraZeneca), an atypical antipsychotic, for treatment-resistant depression.

With up to 13% of women experiencing PPD in the perinatal period, the researchers sought to examine the impact of esketamine administered prophylactically during labor or cesarean section on the incidence of the disorder.

They searched the PubMed, Scopus, and Google Scholar databases for randomized controlled trials examining the efficacy of esketamine and screened for PPD using the Edinburgh Postpartum Depression Scale (EPDS).

While the intranasal spray is the only form of esketamine approved by the US Food and Drug Administration, an injectable solution is also available. The researchers identified seven eligible trials that included a total of 1287 women. Of these participants, 635 (49.3%) received esketamine. Esketamine was delivered as either patient-controlled intravenous analgesia or a single intravenous dose during delivery or cesarean section.

Across the seven trials, esketamine was associated with a significant reduction in PPD at 1 week after delivery at a risk ratio vs placebo of 0.459 (P < .05). At 6 weeks, the reduction in PPD incidence was maintained, at a risk ratio of 0.470 (P < .01).

However, Dr. Kozhokar pointed out that the EPDS is a subjective measure of PPD, and the studies used different cutoff scores for depression, ranging from 9 to 13 points.
 

Unanswered Questions

She also cautioned that the adverse effects of esketamine on maternal and neonatal health need to be assessed, as well as the long-term cost/benefit ratio of prophylactic treatment.

All seven studies included in the meta-analysis were conducted in China, which limits the generalizability of the findings.

“I suppose they were quicker to get to the topic than the rest of the world,” Dr. Kozhokar said, while also suggesting that, potentially, “we are more regulated here in Europe.”

She pointed out that there is “an important safety concern about the use of medications such as ketamine and esketamine” in terms of the potential for addiction and the effect on babies over the long term, which is currently unknown.

Session chair Linda Rubene, MD, a psychiatrist in the Department of Psychiatry and Narcology at Riga Stradinš University, Riga, Latvia, welcomed the study.

“If we had more options to treat postpartum depression and to treat depression during pregnancy, it would be a great improvement,” she said.

However, she noted, because there are no long-term outcome data for esketamine in PPD, more study is needed. It is possible, said Dr. Rubene, that esketamine may not work for all women.

The investigators and Dr. Rubene reported no relevant financial disclosures.

A version of this article first appeared on Medscape.com .

Premenstrual disorders (PMDs) and perinatal depression (PND) appear to have a bidirectional association, a Swedish national registry-based analysis found.

In women with PND, 2.9% had PMDs before pregnancy vs 0.6% in a matched cohort of unaffected women, according to an international team led by Quian Yang, MD, PhD, of the Institute of Environmental Medicine at the Karolinska Institutet in Stockholm, Sweden. Their study appears in PLoS Medicine.

“Preconception and maternity care providers should be aware of the risk of developing perinatal depression among women with a history of PMDs,” Dr. Yang said in an interview. “Healthcare providers may inform women with perinatal depression about the potential risk of PMDs when menstruation returns after childbirth.” She recommended screening as part of routine perinatal care to identify and treat the condition at an early stage. Counseling and medication may help prevent adverse consequences.

In other findings, the correlation with PMDs held for both prenatal and postnatal depression, regardless of any history of psychiatric disorders and also in full-sister comparisons, the authors noted, with a stronger correlation in the absence of psychiatric disorders (P for interaction <.001).

“Interestingly, we noted a stronger association between PMDs and subsequent PND than the association in the other direction, Dr. Yang said. And although many experience PMD symptom onset in adolescence, symptom worsening has been reported with increasing age and parity. “It is possible that women with milder premenstrual symptoms experienced worse symptoms after pregnancy and are therefore first diagnosed with PMD after pregnancy,” the authors hypothesized.

Both PMDs and PND share depressive symptomatology and onset coinciding with hormonal fluctuations, particularly estrogen and progesterone, suggesting a shared etiology, Dr. Yang explained. “It’s plausible that an abnormal response to natural hormone fluctuations predisposes women to both PMDs and PND. However, the underlying mechanism is complex, and future research is needed to reveal the underlying etiology.”

Affecting a majority of women of reproductive age to some degree, PMDs in certain women can cause significant functional impairment and, when severe, have been linked to increased risks of accidents and suicidal behavior. The psychological symptoms of the more serious form, premenstrual dysphoric disorder, for example, are associated with a 50%-78% lifetime risk for psychiatric disorders, including major depressive, dysthymic, seasonal affective, and generalized anxiety disorders, as well as suicidality.

Mood disorders are common in pregnancy and the postpartum period.

The Swedish Study

In 1.8 million singleton pregnancies in Sweden during 2001-2018, the investigators identified 84,949 women with PND and 849,482 unaffected women and individually matched them 10:1 by age and calendar year. Incident PND and PMDs were identified through clinical diagnoses or prescribed medications, and adjustment was made for such demographics as country of birth, educational level, region of residency, and cohabitation status.

In an initial matched-cohort case-control study with a mean follow-up of 6.9 years, PMDs were associated with a nearly five times higher risk of subsequent PND (odds ratio, 4.76; 95% CI, 4.52-5.01; P <.001).

In another matched cohort with a mean follow-up of 7.0 years, there were 4227 newly diagnosed PMDs in women with PND (incidence rate [IR], 7.6/1000 person-years) and 21,326 among controls (IR, 3.8/1000). Compared with matched controls, women with PND were at almost twice the risk of subsequent PMDs (hazard ratio, 1.81; 95% CI, 1.74-1.88; P <.001).

Commenting on the study but not involved in it, Bernard L. Harlow, PhD, a professor of epidemiology at Boston University School of Public Health in Massachusetts who specializes in epidemiologic studies of female reproductive disorders, said he was not surprised at these findings, which clearly support the need for PMD screening in mothers-to-be. “Anything that is easy to measure and noninvasive that will minimize the risk of postpartum depression should be part of the standard of care during the prenatal period.” As to safety: If treatment is indicated, he added, “studies have shown that the risk to the mother and child is much greater if the mother’s mood disorder is not controlled than any risk to the baby due to depression treatment.” But though PMDs may be predictive of PND, there are still barriers to actual PND care. A 2023 analysis reported that 65% of mothers-to-be who screened positive for metal health comorbidities were not referred for treatment.

Dr. Yang and colleagues acknowledged that their findings may not be generalizable to mild forms of these disorders since the data were based on clinical diagnoses and prescriptions.

The study was supported by the Chinese Scholarship Council, the Swedish Research Council for Health, Working Life and Welfare, the Karolinska Institutet, and the Icelandic Research Fund. The authors and Dr. Harlow had no relevant competing interests to disclose.

Premenstrual disorders (PMDs) and perinatal depression (PND) appear to have a bidirectional association, a Swedish national registry-based analysis found.

In women with PND, 2.9% had PMDs before pregnancy vs 0.6% in a matched cohort of unaffected women, according to an international team led by Quian Yang, MD, PhD, of the Institute of Environmental Medicine at the Karolinska Institutet in Stockholm, Sweden. Their study appears in PLoS Medicine.

“Preconception and maternity care providers should be aware of the risk of developing perinatal depression among women with a history of PMDs,” Dr. Yang said in an interview. “Healthcare providers may inform women with perinatal depression about the potential risk of PMDs when menstruation returns after childbirth.” She recommended screening as part of routine perinatal care to identify and treat the condition at an early stage. Counseling and medication may help prevent adverse consequences.

In other findings, the correlation with PMDs held for both prenatal and postnatal depression, regardless of any history of psychiatric disorders and also in full-sister comparisons, the authors noted, with a stronger correlation in the absence of psychiatric disorders (P for interaction <.001).

“Interestingly, we noted a stronger association between PMDs and subsequent PND than the association in the other direction, Dr. Yang said. And although many experience PMD symptom onset in adolescence, symptom worsening has been reported with increasing age and parity. “It is possible that women with milder premenstrual symptoms experienced worse symptoms after pregnancy and are therefore first diagnosed with PMD after pregnancy,” the authors hypothesized.

Both PMDs and PND share depressive symptomatology and onset coinciding with hormonal fluctuations, particularly estrogen and progesterone, suggesting a shared etiology, Dr. Yang explained. “It’s plausible that an abnormal response to natural hormone fluctuations predisposes women to both PMDs and PND. However, the underlying mechanism is complex, and future research is needed to reveal the underlying etiology.”

Affecting a majority of women of reproductive age to some degree, PMDs in certain women can cause significant functional impairment and, when severe, have been linked to increased risks of accidents and suicidal behavior. The psychological symptoms of the more serious form, premenstrual dysphoric disorder, for example, are associated with a 50%-78% lifetime risk for psychiatric disorders, including major depressive, dysthymic, seasonal affective, and generalized anxiety disorders, as well as suicidality.

Mood disorders are common in pregnancy and the postpartum period.

The Swedish Study

In 1.8 million singleton pregnancies in Sweden during 2001-2018, the investigators identified 84,949 women with PND and 849,482 unaffected women and individually matched them 10:1 by age and calendar year. Incident PND and PMDs were identified through clinical diagnoses or prescribed medications, and adjustment was made for such demographics as country of birth, educational level, region of residency, and cohabitation status.

In an initial matched-cohort case-control study with a mean follow-up of 6.9 years, PMDs were associated with a nearly five times higher risk of subsequent PND (odds ratio, 4.76; 95% CI, 4.52-5.01; P <.001).

In another matched cohort with a mean follow-up of 7.0 years, there were 4227 newly diagnosed PMDs in women with PND (incidence rate [IR], 7.6/1000 person-years) and 21,326 among controls (IR, 3.8/1000). Compared with matched controls, women with PND were at almost twice the risk of subsequent PMDs (hazard ratio, 1.81; 95% CI, 1.74-1.88; P <.001).

Commenting on the study but not involved in it, Bernard L. Harlow, PhD, a professor of epidemiology at Boston University School of Public Health in Massachusetts who specializes in epidemiologic studies of female reproductive disorders, said he was not surprised at these findings, which clearly support the need for PMD screening in mothers-to-be. “Anything that is easy to measure and noninvasive that will minimize the risk of postpartum depression should be part of the standard of care during the prenatal period.” As to safety: If treatment is indicated, he added, “studies have shown that the risk to the mother and child is much greater if the mother’s mood disorder is not controlled than any risk to the baby due to depression treatment.” But though PMDs may be predictive of PND, there are still barriers to actual PND care. A 2023 analysis reported that 65% of mothers-to-be who screened positive for metal health comorbidities were not referred for treatment.

Dr. Yang and colleagues acknowledged that their findings may not be generalizable to mild forms of these disorders since the data were based on clinical diagnoses and prescriptions.

The study was supported by the Chinese Scholarship Council, the Swedish Research Council for Health, Working Life and Welfare, the Karolinska Institutet, and the Icelandic Research Fund. The authors and Dr. Harlow had no relevant competing interests to disclose.

Premenstrual disorders (PMDs) and perinatal depression (PND) appear to have a bidirectional association, a Swedish national registry-based analysis found.

In women with PND, 2.9% had PMDs before pregnancy vs 0.6% in a matched cohort of unaffected women, according to an international team led by Quian Yang, MD, PhD, of the Institute of Environmental Medicine at the Karolinska Institutet in Stockholm, Sweden. Their study appears in PLoS Medicine.

“Preconception and maternity care providers should be aware of the risk of developing perinatal depression among women with a history of PMDs,” Dr. Yang said in an interview. “Healthcare providers may inform women with perinatal depression about the potential risk of PMDs when menstruation returns after childbirth.” She recommended screening as part of routine perinatal care to identify and treat the condition at an early stage. Counseling and medication may help prevent adverse consequences.

In other findings, the correlation with PMDs held for both prenatal and postnatal depression, regardless of any history of psychiatric disorders and also in full-sister comparisons, the authors noted, with a stronger correlation in the absence of psychiatric disorders (P for interaction <.001).

“Interestingly, we noted a stronger association between PMDs and subsequent PND than the association in the other direction, Dr. Yang said. And although many experience PMD symptom onset in adolescence, symptom worsening has been reported with increasing age and parity. “It is possible that women with milder premenstrual symptoms experienced worse symptoms after pregnancy and are therefore first diagnosed with PMD after pregnancy,” the authors hypothesized.

Both PMDs and PND share depressive symptomatology and onset coinciding with hormonal fluctuations, particularly estrogen and progesterone, suggesting a shared etiology, Dr. Yang explained. “It’s plausible that an abnormal response to natural hormone fluctuations predisposes women to both PMDs and PND. However, the underlying mechanism is complex, and future research is needed to reveal the underlying etiology.”

Affecting a majority of women of reproductive age to some degree, PMDs in certain women can cause significant functional impairment and, when severe, have been linked to increased risks of accidents and suicidal behavior. The psychological symptoms of the more serious form, premenstrual dysphoric disorder, for example, are associated with a 50%-78% lifetime risk for psychiatric disorders, including major depressive, dysthymic, seasonal affective, and generalized anxiety disorders, as well as suicidality.

Mood disorders are common in pregnancy and the postpartum period.

The Swedish Study

In 1.8 million singleton pregnancies in Sweden during 2001-2018, the investigators identified 84,949 women with PND and 849,482 unaffected women and individually matched them 10:1 by age and calendar year. Incident PND and PMDs were identified through clinical diagnoses or prescribed medications, and adjustment was made for such demographics as country of birth, educational level, region of residency, and cohabitation status.

In an initial matched-cohort case-control study with a mean follow-up of 6.9 years, PMDs were associated with a nearly five times higher risk of subsequent PND (odds ratio, 4.76; 95% CI, 4.52-5.01; P <.001).

In another matched cohort with a mean follow-up of 7.0 years, there were 4227 newly diagnosed PMDs in women with PND (incidence rate [IR], 7.6/1000 person-years) and 21,326 among controls (IR, 3.8/1000). Compared with matched controls, women with PND were at almost twice the risk of subsequent PMDs (hazard ratio, 1.81; 95% CI, 1.74-1.88; P <.001).

Commenting on the study but not involved in it, Bernard L. Harlow, PhD, a professor of epidemiology at Boston University School of Public Health in Massachusetts who specializes in epidemiologic studies of female reproductive disorders, said he was not surprised at these findings, which clearly support the need for PMD screening in mothers-to-be. “Anything that is easy to measure and noninvasive that will minimize the risk of postpartum depression should be part of the standard of care during the prenatal period.” As to safety: If treatment is indicated, he added, “studies have shown that the risk to the mother and child is much greater if the mother’s mood disorder is not controlled than any risk to the baby due to depression treatment.” But though PMDs may be predictive of PND, there are still barriers to actual PND care. A 2023 analysis reported that 65% of mothers-to-be who screened positive for metal health comorbidities were not referred for treatment.

Dr. Yang and colleagues acknowledged that their findings may not be generalizable to mild forms of these disorders since the data were based on clinical diagnoses and prescriptions.

The study was supported by the Chinese Scholarship Council, the Swedish Research Council for Health, Working Life and Welfare, the Karolinska Institutet, and the Icelandic Research Fund. The authors and Dr. Harlow had no relevant competing interests to disclose.

Reintervention rates after uterus-preserving surgery for leiomyomata were lowest after vaginal myomectomy, the most frequent among four therapeutic approaches, a large cohort study reported.

Accounting for censoring, the 7-year reintervention risk for vaginal myomectomy was 20.6%, followed by uterine artery embolization (26%), endometrial ablation (35.5%), and hysteroscopic myomectomy (37%).

Hysterectomies accounted for 63.2% of reinterventions according to lead author Susanna D. Mitro, PhD, a research scientist in the Division of Research and Department of Obstetrics and Gynecology at Kaiser Permanente Northern California, Oakland, and colleagues.

The Study

In a cohort of 10,324 patients ages 18-50, 19.9% were Asian, 21.2% Black, 21.3% Hispanic, and 32.5% White, with 5.2% of other races and ethnicities. The most affected age groups were 41-45 and 46-50 years. All participants underwent a first uterus-preserving procedure after leiomyoma diagnosis according to 2009-2021 electronic health records at Kaiser Permanente Northern California.

Reintervention referred to a second uterus-preserving procedure or hysterectomy. Median follow-up was 3.8 years (interquartile range, 1.8-7.4 years), and the proportions of index procedures were as follows: 18% (1857) for hysteroscopic myomectomy; 16.2% (1669) for uterine artery embolization; 21.4% (2211) for endometrial ablations; and 44.4% (4,587) for myomectomy.

Reintervention rates were higher in younger patients after uterine artery embolization, with patients ages 18-35 at the index procedure having 1.4-3.7 times greater reintervention rates than patients ages 46-50 years. Reintervention rates for hysteroscopic myomectomy varied by parity, with multiparous patients at 35% greater risk than their nulliparous counterparts.

On the age issue, the authors note that symptom recurrence may be less common in older patients, perhaps because of the onset of menopause. “Alternatively, findings may be explained by age-specific care strategies: Older patients experiencing symptom recurrence may prefer to wait until the onset of menopause rather than pursuing another surgical treatment,” they wrote.

A recent study with 7 years’ follow-up reported a 2.4 times greater risk of hysterectomy after uterine artery embolization versus myomectomy. Reintervention rates may be lower after myomectomy because otherwise asymptomatic patients pursue myomectomy to treat infertility, the authors wrote. Alternatively, myomectomy may more completely remove leiomyomas.

These common benign tumors take a toll on healthcare resources, in 2012 costing up to $9.4 billion annually (in 2010 dollars) for related surgeries, medications, and procedures. Leiomyomas are reportedly the most frequent reason for hysterectomy.

Robust data on the optimal therapeutic approach to fibroids have been sparse, however, with a 2017 comparative-effectiveness review from the Agency for Healthcare Research and Quality reporting that evidence on leiomyoma treatments was insufficient to guide clinical care. Few well-conducted trials of leiomyoma treatment have directly compared different treatment options, the authors noted.

The rate of myomectomy is reported to be 9.2 per 10,000 woman-years in Black women and 1.3 per 10,000 woman years in White women, and the recurrence rate after myomectomy can be as great as 60% when patients are followed up to 5 years.

The authors said their findings “may be a reference to discuss expectations for treatment outcomes when choosing initial uterus-preserving treatment for leiomyomas, especially for patients receiving treatment years before the likely onset of menopause.”

This research was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health. Coauthor Dr. Lauren Wise is a paid consultant for AbbVie and has received in-kind donations from Swiss Precision Diagnostics and Kindara.com; she has also received payment from the Gates Foundation.

Reintervention rates after uterus-preserving surgery for leiomyomata were lowest after vaginal myomectomy, the most frequent among four therapeutic approaches, a large cohort study reported.

Accounting for censoring, the 7-year reintervention risk for vaginal myomectomy was 20.6%, followed by uterine artery embolization (26%), endometrial ablation (35.5%), and hysteroscopic myomectomy (37%).

Hysterectomies accounted for 63.2% of reinterventions according to lead author Susanna D. Mitro, PhD, a research scientist in the Division of Research and Department of Obstetrics and Gynecology at Kaiser Permanente Northern California, Oakland, and colleagues.

The Study

In a cohort of 10,324 patients ages 18-50, 19.9% were Asian, 21.2% Black, 21.3% Hispanic, and 32.5% White, with 5.2% of other races and ethnicities. The most affected age groups were 41-45 and 46-50 years. All participants underwent a first uterus-preserving procedure after leiomyoma diagnosis according to 2009-2021 electronic health records at Kaiser Permanente Northern California.

Reintervention referred to a second uterus-preserving procedure or hysterectomy. Median follow-up was 3.8 years (interquartile range, 1.8-7.4 years), and the proportions of index procedures were as follows: 18% (1857) for hysteroscopic myomectomy; 16.2% (1669) for uterine artery embolization; 21.4% (2211) for endometrial ablations; and 44.4% (4,587) for myomectomy.

Reintervention rates were higher in younger patients after uterine artery embolization, with patients ages 18-35 at the index procedure having 1.4-3.7 times greater reintervention rates than patients ages 46-50 years. Reintervention rates for hysteroscopic myomectomy varied by parity, with multiparous patients at 35% greater risk than their nulliparous counterparts.

On the age issue, the authors note that symptom recurrence may be less common in older patients, perhaps because of the onset of menopause. “Alternatively, findings may be explained by age-specific care strategies: Older patients experiencing symptom recurrence may prefer to wait until the onset of menopause rather than pursuing another surgical treatment,” they wrote.

A recent study with 7 years’ follow-up reported a 2.4 times greater risk of hysterectomy after uterine artery embolization versus myomectomy. Reintervention rates may be lower after myomectomy because otherwise asymptomatic patients pursue myomectomy to treat infertility, the authors wrote. Alternatively, myomectomy may more completely remove leiomyomas.

These common benign tumors take a toll on healthcare resources, in 2012 costing up to $9.4 billion annually (in 2010 dollars) for related surgeries, medications, and procedures. Leiomyomas are reportedly the most frequent reason for hysterectomy.

Robust data on the optimal therapeutic approach to fibroids have been sparse, however, with a 2017 comparative-effectiveness review from the Agency for Healthcare Research and Quality reporting that evidence on leiomyoma treatments was insufficient to guide clinical care. Few well-conducted trials of leiomyoma treatment have directly compared different treatment options, the authors noted.

The rate of myomectomy is reported to be 9.2 per 10,000 woman-years in Black women and 1.3 per 10,000 woman years in White women, and the recurrence rate after myomectomy can be as great as 60% when patients are followed up to 5 years.

The authors said their findings “may be a reference to discuss expectations for treatment outcomes when choosing initial uterus-preserving treatment for leiomyomas, especially for patients receiving treatment years before the likely onset of menopause.”

This research was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health. Coauthor Dr. Lauren Wise is a paid consultant for AbbVie and has received in-kind donations from Swiss Precision Diagnostics and Kindara.com; she has also received payment from the Gates Foundation.

Reintervention rates after uterus-preserving surgery for leiomyomata were lowest after vaginal myomectomy, the most frequent among four therapeutic approaches, a large cohort study reported.

Accounting for censoring, the 7-year reintervention risk for vaginal myomectomy was 20.6%, followed by uterine artery embolization (26%), endometrial ablation (35.5%), and hysteroscopic myomectomy (37%).

Hysterectomies accounted for 63.2% of reinterventions according to lead author Susanna D. Mitro, PhD, a research scientist in the Division of Research and Department of Obstetrics and Gynecology at Kaiser Permanente Northern California, Oakland, and colleagues.

The Study

In a cohort of 10,324 patients ages 18-50, 19.9% were Asian, 21.2% Black, 21.3% Hispanic, and 32.5% White, with 5.2% of other races and ethnicities. The most affected age groups were 41-45 and 46-50 years. All participants underwent a first uterus-preserving procedure after leiomyoma diagnosis according to 2009-2021 electronic health records at Kaiser Permanente Northern California.

Reintervention referred to a second uterus-preserving procedure or hysterectomy. Median follow-up was 3.8 years (interquartile range, 1.8-7.4 years), and the proportions of index procedures were as follows: 18% (1857) for hysteroscopic myomectomy; 16.2% (1669) for uterine artery embolization; 21.4% (2211) for endometrial ablations; and 44.4% (4,587) for myomectomy.

Reintervention rates were higher in younger patients after uterine artery embolization, with patients ages 18-35 at the index procedure having 1.4-3.7 times greater reintervention rates than patients ages 46-50 years. Reintervention rates for hysteroscopic myomectomy varied by parity, with multiparous patients at 35% greater risk than their nulliparous counterparts.

On the age issue, the authors note that symptom recurrence may be less common in older patients, perhaps because of the onset of menopause. “Alternatively, findings may be explained by age-specific care strategies: Older patients experiencing symptom recurrence may prefer to wait until the onset of menopause rather than pursuing another surgical treatment,” they wrote.

A recent study with 7 years’ follow-up reported a 2.4 times greater risk of hysterectomy after uterine artery embolization versus myomectomy. Reintervention rates may be lower after myomectomy because otherwise asymptomatic patients pursue myomectomy to treat infertility, the authors wrote. Alternatively, myomectomy may more completely remove leiomyomas.

These common benign tumors take a toll on healthcare resources, in 2012 costing up to $9.4 billion annually (in 2010 dollars) for related surgeries, medications, and procedures. Leiomyomas are reportedly the most frequent reason for hysterectomy.

Robust data on the optimal therapeutic approach to fibroids have been sparse, however, with a 2017 comparative-effectiveness review from the Agency for Healthcare Research and Quality reporting that evidence on leiomyoma treatments was insufficient to guide clinical care. Few well-conducted trials of leiomyoma treatment have directly compared different treatment options, the authors noted.

The rate of myomectomy is reported to be 9.2 per 10,000 woman-years in Black women and 1.3 per 10,000 woman years in White women, and the recurrence rate after myomectomy can be as great as 60% when patients are followed up to 5 years.

The authors said their findings “may be a reference to discuss expectations for treatment outcomes when choosing initial uterus-preserving treatment for leiomyomas, especially for patients receiving treatment years before the likely onset of menopause.”

This research was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health. Coauthor Dr. Lauren Wise is a paid consultant for AbbVie and has received in-kind donations from Swiss Precision Diagnostics and Kindara.com; she has also received payment from the Gates Foundation.

When her obstetrician-gynecologist recommended a mammogram, Emily Legg didn’t hesitate to schedule an appointment for the screening.

Her grandmother had been diagnosed with breast cancer and her father died of prostate cancer in his mid-50s. Ms. Legg also has polycystic ovary syndrome (PCOS), which increases the risk of some cancers.

Having just turned 40, Ms. Legg said she was determined to be as proactive as possible with cancer screenings.

Before the mammogram, she arranged for childcare for her 6-month-old daughter and filled out a required questionnaire online that asked about her history and health conditions. When the appointment day arrived, Ms. Legg made the 30-minute drive to the clinic where she was prepped for the procedure and escorted to the mammography room.

But just before the screening started, Ms. Legg happened to mention to the technician that she was breastfeeding. The surprised tech immediately halted the procedure, Ms. Legg said. Because of increased breast density caused by nursing, Ms. Legg was told to wait at least 6 weeks after weaning for a mammogram.

“I didn’t even consider that breastfeeding might prevent me from getting a mammogram,” said Ms. Legg, a writing professor from Hamilton, Ohio. “I had to go home. I was frustrated, mostly because I had driven all that way. I had hyped myself up. I had childcare in line. And now I had to wait until my daughter weaned? At the time, I didn’t know if my daughter was going to breastfeed for 2 years or be done at 6 months.”

Considering her family background, Ms. Legg worried about not receiving the screening. Her sister had recently undergone a mammogram while she was breastfeeding without any problems.

When she did research, Ms. Legg found conflicting information about the subject online so she turned to Reddit, where she started a thread asking if other moms over 40 had experienced similar issues. Dozens of moms responded with questions and concerns on the subject. Some wrote about being denied a mammogram while breastfeeding, while others wrote they received the procedure without question. Guidance from health professionals on the topic appeared to vastly differ.

“That’s why I turned to [social media] because I wasn’t finding anything else,” Ms. Legg said. “There’s just a lack of clear information. As an older mom, there’s less information out there for being postpartum and being over 40.”

Confusion over screenings during breastfeeding comes at the intersection of national guidelines lowering the recommended age for first mammograms, more women having babies later in life, and women getting breast cancer earlier.

Legg family

Most physician specialty associations agree that mammography is safe for breastfeeding patients and that they need not delay routine screenings. However, the safety of breast imaging during pregnancy and lactation is not well advertised, said Molly Peterson, MD, a radiologist based in St. Frances, Wisconsin, and lead author of a 2023 article about breast imaging during pregnancy and lactation in RadioGraphics, a journal of the Radiological Society of North America.

Conflicting information from nonscientific resources adds to the confusion, Dr. Peterson said. At the same time, health providers along the care spectrum may be uncertain about what imaging is safe and reasonable. Recommendations about mammography and lactation can also vary by institution, screening experts say.

“I’ve talked with pregnant and breastfeeding patients, both younger and older, who were unsure if they could have mammograms,” Dr. Peterson said. “I’ve also fielded questions from technologists, unclear what imaging we can offer these patients. ... Educating health professionals about evidence-based guidelines for screening and diagnostic imaging and reassuring patients about the safety of breast imaging during pregnancy and lactation is thus more important than ever.”
 

Differing Guidelines, Case-by-Case Considerations

The RadioGraphics paper emphasizes that both screening and diagnostic imaging can be safely performed using protocols based on age, breast cancer risk, and whether the patient is pregnant or lactating.

The American College of Radiology (ACR) Appropriateness Criteria also support mammography for certain patients during lactation. The guidelines state there is no contraindication to performing mammography during lactation, but note that challenges in evaluation can arise because of the unique physiological and structural breast changes that can occur.

“Hormones can change breast density and size of the breast, which could limit the clinical examination, mimic pathology, and obscure mammographic findings,” said Stamatia V. Destounis, MD, FACR, chair of the ACR Breast Imaging Commission. “It is important the patient pumps right before the mammogram or brings the baby to breastfeed prior to the imaging examination to offer the best imaging evaluation and reduce breast density as much as possible.”

In those patients who choose to prolong breastfeeding and are of the age to be screened, it is important they undergo yearly clinical breast exams, perform breast self-exams, and discuss breast cancer screening with their healthcare provider, she said. “They should not delay a routine screening mammogram. Most patients have dense breast tissue at this time, and frequently a breast ultrasound may be performed also.”

The American College of Obstetricians and Gynecologists (ACOG) does not have specific guidelines about breastfeeding mothers and mammography recommendations. Breastfeeding patients should discuss with their physicians or midwives the pros and cons of mammography, taking into account personal risk factors and how long they plan to nurse, said Joshua Copel, MD, vice chair of obstetrics, gynecology and reproductive sciences at Yale Medicine, New Haven, Connecticut, and a member of ACOG’s Committee on Obstetric Practice.

“The question for anybody to address with their physician will be, ‘Is my risk of breast cancer high enough that I should take that small risk that they’re going to over- or underread the mammogram because of my nursing status? Or should I wait until I wean the baby and have the mammogram then?’” he said.

Institutional and practice protocols meanwhile, can depend on a patient’s cancer risk.

Guidelines at the University of Wisconsin, for instance, advise that lactating patients 40 or over who are at average risk, wait 6-8 weeks after cessation of breastfeeding, said Alison Gegios, MD, a radiologist and assistant professor in breast imaging at the University of Wisconsin School of Medicine and Public Health. Average risk is defined as less than a 15% lifetime risk of breast cancer, she said.

Dr. Gegios, a coauthor on the RadioGraphics paper, said her institution recommends screening mammography if lactating patients are at intermediate or high risk, and are over 30. In such cases however, screening is generally deferred until 3-6 months after delivery, she noted.

“If patients are high risk, it’s also important to do screening breast MRIs,” Dr. Gegios said. “Studies have shown that screening breast MRIs are effective in breastfeeding patients despite their increased background parenchymal enhancement because breast cancer still stands out on our maximum intensity projections and stands out on the exam from the background.”
 

How to Clear Up Confusion, Promote Consistency

After her experience at the mammography practice, Ms. Legg went home and immediately sent a message to her ob.gyn. about what happened.

The doctor was similarly surprised and frustrated that Ms. Legg wasn’t able to get the mammogram, she said. To get around the difference in protocols, Ms. Legg’s ob.gyn. referred her to a high-risk clinic in Cincinnati. Ms. Legg’s history qualified her as high risk and she received genetic testing and a breast ultrasound at the clinic, she said.

“The ultrasound showed some shady spots,” Ms. Legg recalled. “They weren’t quite sure what they were. Another ultrasound later, they determined the spots were symmetrical and it ended up not being anything [serious]. Genetic-wise, I did not have any markers for cancer.”

Ms. Legg was relieved and she eventually received a mammogram when she finished breastfeeding, she said. However, she feels the overlap of older, breastfeeding moms and mammography guidelines deserves more attention.

“I would encourage all of us in the ‘geriatric mother’s club,’ to advocate for yourself, do your research, and also turn to your medical professionals and ask questions,” she said. “Make sure you know what they recommend for moms who are older and just had a baby.”

On the provider side, Dr. Destounis said physicians should revisit with patients the most updated guidelines about breastfeeding and mammography at routine appointments.

“Patients and their physicians have to have communication about screening for breast cancer if they are of screening age,” she said.

Dr. Copel advises physicians to run through the risks and benefits of mammograms with older, breastfeeding patients and make a shared decision. “It’s all going to vary with the individual circumstances,” he said. “If someone [has] a BRCA gene and their sister and mother had breast cancer, maybe it’s worth it. If somebody has absolutely no family history and just crossed the threshold for meeting a mammogram [recommendation], then sure, wait.”

Ms. Legg would like to see more professional literature and educational material directed toward the older, breastfeeding population about mammograms.

“At minimum, work together across departments to create an intake form, a questionnaire that is inclusive of everything,” she said. “There should be a question before you even get to the tech that asks, ‘Are you breastfeeding?’ ”

When her obstetrician-gynecologist recommended a mammogram, Emily Legg didn’t hesitate to schedule an appointment for the screening.

Her grandmother had been diagnosed with breast cancer and her father died of prostate cancer in his mid-50s. Ms. Legg also has polycystic ovary syndrome (PCOS), which increases the risk of some cancers.

Having just turned 40, Ms. Legg said she was determined to be as proactive as possible with cancer screenings.

Before the mammogram, she arranged for childcare for her 6-month-old daughter and filled out a required questionnaire online that asked about her history and health conditions. When the appointment day arrived, Ms. Legg made the 30-minute drive to the clinic where she was prepped for the procedure and escorted to the mammography room.

But just before the screening started, Ms. Legg happened to mention to the technician that she was breastfeeding. The surprised tech immediately halted the procedure, Ms. Legg said. Because of increased breast density caused by nursing, Ms. Legg was told to wait at least 6 weeks after weaning for a mammogram.

“I didn’t even consider that breastfeeding might prevent me from getting a mammogram,” said Ms. Legg, a writing professor from Hamilton, Ohio. “I had to go home. I was frustrated, mostly because I had driven all that way. I had hyped myself up. I had childcare in line. And now I had to wait until my daughter weaned? At the time, I didn’t know if my daughter was going to breastfeed for 2 years or be done at 6 months.”

Considering her family background, Ms. Legg worried about not receiving the screening. Her sister had recently undergone a mammogram while she was breastfeeding without any problems.

When she did research, Ms. Legg found conflicting information about the subject online so she turned to Reddit, where she started a thread asking if other moms over 40 had experienced similar issues. Dozens of moms responded with questions and concerns on the subject. Some wrote about being denied a mammogram while breastfeeding, while others wrote they received the procedure without question. Guidance from health professionals on the topic appeared to vastly differ.

“That’s why I turned to [social media] because I wasn’t finding anything else,” Ms. Legg said. “There’s just a lack of clear information. As an older mom, there’s less information out there for being postpartum and being over 40.”

Confusion over screenings during breastfeeding comes at the intersection of national guidelines lowering the recommended age for first mammograms, more women having babies later in life, and women getting breast cancer earlier.

Legg family

Most physician specialty associations agree that mammography is safe for breastfeeding patients and that they need not delay routine screenings. However, the safety of breast imaging during pregnancy and lactation is not well advertised, said Molly Peterson, MD, a radiologist based in St. Frances, Wisconsin, and lead author of a 2023 article about breast imaging during pregnancy and lactation in RadioGraphics, a journal of the Radiological Society of North America.

Conflicting information from nonscientific resources adds to the confusion, Dr. Peterson said. At the same time, health providers along the care spectrum may be uncertain about what imaging is safe and reasonable. Recommendations about mammography and lactation can also vary by institution, screening experts say.

“I’ve talked with pregnant and breastfeeding patients, both younger and older, who were unsure if they could have mammograms,” Dr. Peterson said. “I’ve also fielded questions from technologists, unclear what imaging we can offer these patients. ... Educating health professionals about evidence-based guidelines for screening and diagnostic imaging and reassuring patients about the safety of breast imaging during pregnancy and lactation is thus more important than ever.”
 

Differing Guidelines, Case-by-Case Considerations

The RadioGraphics paper emphasizes that both screening and diagnostic imaging can be safely performed using protocols based on age, breast cancer risk, and whether the patient is pregnant or lactating.

The American College of Radiology (ACR) Appropriateness Criteria also support mammography for certain patients during lactation. The guidelines state there is no contraindication to performing mammography during lactation, but note that challenges in evaluation can arise because of the unique physiological and structural breast changes that can occur.

“Hormones can change breast density and size of the breast, which could limit the clinical examination, mimic pathology, and obscure mammographic findings,” said Stamatia V. Destounis, MD, FACR, chair of the ACR Breast Imaging Commission. “It is important the patient pumps right before the mammogram or brings the baby to breastfeed prior to the imaging examination to offer the best imaging evaluation and reduce breast density as much as possible.”

In those patients who choose to prolong breastfeeding and are of the age to be screened, it is important they undergo yearly clinical breast exams, perform breast self-exams, and discuss breast cancer screening with their healthcare provider, she said. “They should not delay a routine screening mammogram. Most patients have dense breast tissue at this time, and frequently a breast ultrasound may be performed also.”

The American College of Obstetricians and Gynecologists (ACOG) does not have specific guidelines about breastfeeding mothers and mammography recommendations. Breastfeeding patients should discuss with their physicians or midwives the pros and cons of mammography, taking into account personal risk factors and how long they plan to nurse, said Joshua Copel, MD, vice chair of obstetrics, gynecology and reproductive sciences at Yale Medicine, New Haven, Connecticut, and a member of ACOG’s Committee on Obstetric Practice.

“The question for anybody to address with their physician will be, ‘Is my risk of breast cancer high enough that I should take that small risk that they’re going to over- or underread the mammogram because of my nursing status? Or should I wait until I wean the baby and have the mammogram then?’” he said.

Institutional and practice protocols meanwhile, can depend on a patient’s cancer risk.

Guidelines at the University of Wisconsin, for instance, advise that lactating patients 40 or over who are at average risk, wait 6-8 weeks after cessation of breastfeeding, said Alison Gegios, MD, a radiologist and assistant professor in breast imaging at the University of Wisconsin School of Medicine and Public Health. Average risk is defined as less than a 15% lifetime risk of breast cancer, she said.

Dr. Gegios, a coauthor on the RadioGraphics paper, said her institution recommends screening mammography if lactating patients are at intermediate or high risk, and are over 30. In such cases however, screening is generally deferred until 3-6 months after delivery, she noted.

“If patients are high risk, it’s also important to do screening breast MRIs,” Dr. Gegios said. “Studies have shown that screening breast MRIs are effective in breastfeeding patients despite their increased background parenchymal enhancement because breast cancer still stands out on our maximum intensity projections and stands out on the exam from the background.”
 

How to Clear Up Confusion, Promote Consistency

After her experience at the mammography practice, Ms. Legg went home and immediately sent a message to her ob.gyn. about what happened.

The doctor was similarly surprised and frustrated that Ms. Legg wasn’t able to get the mammogram, she said. To get around the difference in protocols, Ms. Legg’s ob.gyn. referred her to a high-risk clinic in Cincinnati. Ms. Legg’s history qualified her as high risk and she received genetic testing and a breast ultrasound at the clinic, she said.

“The ultrasound showed some shady spots,” Ms. Legg recalled. “They weren’t quite sure what they were. Another ultrasound later, they determined the spots were symmetrical and it ended up not being anything [serious]. Genetic-wise, I did not have any markers for cancer.”

Ms. Legg was relieved and she eventually received a mammogram when she finished breastfeeding, she said. However, she feels the overlap of older, breastfeeding moms and mammography guidelines deserves more attention.

“I would encourage all of us in the ‘geriatric mother’s club,’ to advocate for yourself, do your research, and also turn to your medical professionals and ask questions,” she said. “Make sure you know what they recommend for moms who are older and just had a baby.”

On the provider side, Dr. Destounis said physicians should revisit with patients the most updated guidelines about breastfeeding and mammography at routine appointments.

“Patients and their physicians have to have communication about screening for breast cancer if they are of screening age,” she said.

Dr. Copel advises physicians to run through the risks and benefits of mammograms with older, breastfeeding patients and make a shared decision. “It’s all going to vary with the individual circumstances,” he said. “If someone [has] a BRCA gene and their sister and mother had breast cancer, maybe it’s worth it. If somebody has absolutely no family history and just crossed the threshold for meeting a mammogram [recommendation], then sure, wait.”

Ms. Legg would like to see more professional literature and educational material directed toward the older, breastfeeding population about mammograms.

“At minimum, work together across departments to create an intake form, a questionnaire that is inclusive of everything,” she said. “There should be a question before you even get to the tech that asks, ‘Are you breastfeeding?’ ”

When her obstetrician-gynecologist recommended a mammogram, Emily Legg didn’t hesitate to schedule an appointment for the screening.

Her grandmother had been diagnosed with breast cancer and her father died of prostate cancer in his mid-50s. Ms. Legg also has polycystic ovary syndrome (PCOS), which increases the risk of some cancers.

Having just turned 40, Ms. Legg said she was determined to be as proactive as possible with cancer screenings.

Before the mammogram, she arranged for childcare for her 6-month-old daughter and filled out a required questionnaire online that asked about her history and health conditions. When the appointment day arrived, Ms. Legg made the 30-minute drive to the clinic where she was prepped for the procedure and escorted to the mammography room.

But just before the screening started, Ms. Legg happened to mention to the technician that she was breastfeeding. The surprised tech immediately halted the procedure, Ms. Legg said. Because of increased breast density caused by nursing, Ms. Legg was told to wait at least 6 weeks after weaning for a mammogram.

“I didn’t even consider that breastfeeding might prevent me from getting a mammogram,” said Ms. Legg, a writing professor from Hamilton, Ohio. “I had to go home. I was frustrated, mostly because I had driven all that way. I had hyped myself up. I had childcare in line. And now I had to wait until my daughter weaned? At the time, I didn’t know if my daughter was going to breastfeed for 2 years or be done at 6 months.”

Considering her family background, Ms. Legg worried about not receiving the screening. Her sister had recently undergone a mammogram while she was breastfeeding without any problems.

When she did research, Ms. Legg found conflicting information about the subject online so she turned to Reddit, where she started a thread asking if other moms over 40 had experienced similar issues. Dozens of moms responded with questions and concerns on the subject. Some wrote about being denied a mammogram while breastfeeding, while others wrote they received the procedure without question. Guidance from health professionals on the topic appeared to vastly differ.

“That’s why I turned to [social media] because I wasn’t finding anything else,” Ms. Legg said. “There’s just a lack of clear information. As an older mom, there’s less information out there for being postpartum and being over 40.”

Confusion over screenings during breastfeeding comes at the intersection of national guidelines lowering the recommended age for first mammograms, more women having babies later in life, and women getting breast cancer earlier.

Legg family

Most physician specialty associations agree that mammography is safe for breastfeeding patients and that they need not delay routine screenings. However, the safety of breast imaging during pregnancy and lactation is not well advertised, said Molly Peterson, MD, a radiologist based in St. Frances, Wisconsin, and lead author of a 2023 article about breast imaging during pregnancy and lactation in RadioGraphics, a journal of the Radiological Society of North America.

Conflicting information from nonscientific resources adds to the confusion, Dr. Peterson said. At the same time, health providers along the care spectrum may be uncertain about what imaging is safe and reasonable. Recommendations about mammography and lactation can also vary by institution, screening experts say.

“I’ve talked with pregnant and breastfeeding patients, both younger and older, who were unsure if they could have mammograms,” Dr. Peterson said. “I’ve also fielded questions from technologists, unclear what imaging we can offer these patients. ... Educating health professionals about evidence-based guidelines for screening and diagnostic imaging and reassuring patients about the safety of breast imaging during pregnancy and lactation is thus more important than ever.”
 

Differing Guidelines, Case-by-Case Considerations

The RadioGraphics paper emphasizes that both screening and diagnostic imaging can be safely performed using protocols based on age, breast cancer risk, and whether the patient is pregnant or lactating.

The American College of Radiology (ACR) Appropriateness Criteria also support mammography for certain patients during lactation. The guidelines state there is no contraindication to performing mammography during lactation, but note that challenges in evaluation can arise because of the unique physiological and structural breast changes that can occur.

“Hormones can change breast density and size of the breast, which could limit the clinical examination, mimic pathology, and obscure mammographic findings,” said Stamatia V. Destounis, MD, FACR, chair of the ACR Breast Imaging Commission. “It is important the patient pumps right before the mammogram or brings the baby to breastfeed prior to the imaging examination to offer the best imaging evaluation and reduce breast density as much as possible.”

In those patients who choose to prolong breastfeeding and are of the age to be screened, it is important they undergo yearly clinical breast exams, perform breast self-exams, and discuss breast cancer screening with their healthcare provider, she said. “They should not delay a routine screening mammogram. Most patients have dense breast tissue at this time, and frequently a breast ultrasound may be performed also.”

The American College of Obstetricians and Gynecologists (ACOG) does not have specific guidelines about breastfeeding mothers and mammography recommendations. Breastfeeding patients should discuss with their physicians or midwives the pros and cons of mammography, taking into account personal risk factors and how long they plan to nurse, said Joshua Copel, MD, vice chair of obstetrics, gynecology and reproductive sciences at Yale Medicine, New Haven, Connecticut, and a member of ACOG’s Committee on Obstetric Practice.

“The question for anybody to address with their physician will be, ‘Is my risk of breast cancer high enough that I should take that small risk that they’re going to over- or underread the mammogram because of my nursing status? Or should I wait until I wean the baby and have the mammogram then?’” he said.

Institutional and practice protocols meanwhile, can depend on a patient’s cancer risk.

Guidelines at the University of Wisconsin, for instance, advise that lactating patients 40 or over who are at average risk, wait 6-8 weeks after cessation of breastfeeding, said Alison Gegios, MD, a radiologist and assistant professor in breast imaging at the University of Wisconsin School of Medicine and Public Health. Average risk is defined as less than a 15% lifetime risk of breast cancer, she said.

Dr. Gegios, a coauthor on the RadioGraphics paper, said her institution recommends screening mammography if lactating patients are at intermediate or high risk, and are over 30. In such cases however, screening is generally deferred until 3-6 months after delivery, she noted.

“If patients are high risk, it’s also important to do screening breast MRIs,” Dr. Gegios said. “Studies have shown that screening breast MRIs are effective in breastfeeding patients despite their increased background parenchymal enhancement because breast cancer still stands out on our maximum intensity projections and stands out on the exam from the background.”
 

How to Clear Up Confusion, Promote Consistency

After her experience at the mammography practice, Ms. Legg went home and immediately sent a message to her ob.gyn. about what happened.

The doctor was similarly surprised and frustrated that Ms. Legg wasn’t able to get the mammogram, she said. To get around the difference in protocols, Ms. Legg’s ob.gyn. referred her to a high-risk clinic in Cincinnati. Ms. Legg’s history qualified her as high risk and she received genetic testing and a breast ultrasound at the clinic, she said.

“The ultrasound showed some shady spots,” Ms. Legg recalled. “They weren’t quite sure what they were. Another ultrasound later, they determined the spots were symmetrical and it ended up not being anything [serious]. Genetic-wise, I did not have any markers for cancer.”

Ms. Legg was relieved and she eventually received a mammogram when she finished breastfeeding, she said. However, she feels the overlap of older, breastfeeding moms and mammography guidelines deserves more attention.

“I would encourage all of us in the ‘geriatric mother’s club,’ to advocate for yourself, do your research, and also turn to your medical professionals and ask questions,” she said. “Make sure you know what they recommend for moms who are older and just had a baby.”

On the provider side, Dr. Destounis said physicians should revisit with patients the most updated guidelines about breastfeeding and mammography at routine appointments.

“Patients and their physicians have to have communication about screening for breast cancer if they are of screening age,” she said.

Dr. Copel advises physicians to run through the risks and benefits of mammograms with older, breastfeeding patients and make a shared decision. “It’s all going to vary with the individual circumstances,” he said. “If someone [has] a BRCA gene and their sister and mother had breast cancer, maybe it’s worth it. If somebody has absolutely no family history and just crossed the threshold for meeting a mammogram [recommendation], then sure, wait.”

Ms. Legg would like to see more professional literature and educational material directed toward the older, breastfeeding population about mammograms.

“At minimum, work together across departments to create an intake form, a questionnaire that is inclusive of everything,” she said. “There should be a question before you even get to the tech that asks, ‘Are you breastfeeding?’ ”

TOPLINE:

A study comparing cervical pessary and vaginal progesterone for the prevention of preterm birth in women with a short cervix of ≤ 35 mm found no significant difference between the interventions for perinatal complications. Among women with a cervical length of ≤ 25 mm, however, pessaries appeared to be less effective at preventing spontaneous preterm birth and adverse outcomes, according to the researchers.

METHODOLOGY:

• Researchers conducted an open-label, randomized controlled trial at 20 hospitals and five obstetric ultrasound practices in the Netherlands.
• The study included 635 women with healthy singleton pregnancies between 18 and 22 weeks’ gestation and an asymptomatic short cervix of ≤ 35 mm. Participants had no history of spontaneous preterm birth.
• Women were randomly assigned to receive either an Arabin cervical pessary or 200 mg/d vaginal progesterone for ≤ 36 weeks of gestation.
• The investigators examined a composite measure of adverse perinatal outcomes, including  (grade, > 1), chronic lung disease,  (grade, III or IV),  (stage, > 1), , stillbirth, and death of the baby.

TAKEAWAY:

• Adverse perinatal outcomes occurred in 6% of each treatment group, and the rate of spontaneous preterm birth did not differ significantly between the groups.
• In a subgroup analysis of 131 patients with a cervical length of ≤ 25 mm, spontaneous preterm birth at < 28 weeks occurred more often in the pessary group (16% vs 4%).
• Adverse perinatal outcomes also seemed to occur more frequently in the pessary group (24% vs 12%; relative risk, 2.1 [95% CI, 0.95-4.60]), in the subgroup analysis, according to the researchers.

IN PRACTICE:

“Even though the study was not powered for the subgroup with a short cervix of ≤ 25 mm, results suggest that a cervical pessary should not be used as preventive treatment in this group,” the researchers wrote.

SOURCE:

The study was led by Charlotte E. van Dijk, MD, with Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands. It was published online in The BMJ.

LIMITATIONS:

The researchers were unable to mask the treatment groups, which could introduce bias. The study’s reliance on self-reported medication adherence in the progesterone group and a lack of extra training for pessary placement might have influenced the outcomes, the researchers noted.

DISCLOSURES:

The study was supported by Stichting Stoptevroegbevallen, a nonprofit research foundation. An author disclosed financial ties with Merck.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

A study comparing cervical pessary and vaginal progesterone for the prevention of preterm birth in women with a short cervix of ≤ 35 mm found no significant difference between the interventions for perinatal complications. Among women with a cervical length of ≤ 25 mm, however, pessaries appeared to be less effective at preventing spontaneous preterm birth and adverse outcomes, according to the researchers.

METHODOLOGY:

• Researchers conducted an open-label, randomized controlled trial at 20 hospitals and five obstetric ultrasound practices in the Netherlands.
• The study included 635 women with healthy singleton pregnancies between 18 and 22 weeks’ gestation and an asymptomatic short cervix of ≤ 35 mm. Participants had no history of spontaneous preterm birth.
• Women were randomly assigned to receive either an Arabin cervical pessary or 200 mg/d vaginal progesterone for ≤ 36 weeks of gestation.
• The investigators examined a composite measure of adverse perinatal outcomes, including  (grade, > 1), chronic lung disease,  (grade, III or IV),  (stage, > 1), , stillbirth, and death of the baby.

TAKEAWAY:

• Adverse perinatal outcomes occurred in 6% of each treatment group, and the rate of spontaneous preterm birth did not differ significantly between the groups.
• In a subgroup analysis of 131 patients with a cervical length of ≤ 25 mm, spontaneous preterm birth at < 28 weeks occurred more often in the pessary group (16% vs 4%).
• Adverse perinatal outcomes also seemed to occur more frequently in the pessary group (24% vs 12%; relative risk, 2.1 [95% CI, 0.95-4.60]), in the subgroup analysis, according to the researchers.

IN PRACTICE:

“Even though the study was not powered for the subgroup with a short cervix of ≤ 25 mm, results suggest that a cervical pessary should not be used as preventive treatment in this group,” the researchers wrote.

SOURCE:

The study was led by Charlotte E. van Dijk, MD, with Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands. It was published online in The BMJ.

LIMITATIONS:

The researchers were unable to mask the treatment groups, which could introduce bias. The study’s reliance on self-reported medication adherence in the progesterone group and a lack of extra training for pessary placement might have influenced the outcomes, the researchers noted.

DISCLOSURES:

The study was supported by Stichting Stoptevroegbevallen, a nonprofit research foundation. An author disclosed financial ties with Merck.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

A study comparing cervical pessary and vaginal progesterone for the prevention of preterm birth in women with a short cervix of ≤ 35 mm found no significant difference between the interventions for perinatal complications. Among women with a cervical length of ≤ 25 mm, however, pessaries appeared to be less effective at preventing spontaneous preterm birth and adverse outcomes, according to the researchers.

METHODOLOGY:

• Researchers conducted an open-label, randomized controlled trial at 20 hospitals and five obstetric ultrasound practices in the Netherlands.
• The study included 635 women with healthy singleton pregnancies between 18 and 22 weeks’ gestation and an asymptomatic short cervix of ≤ 35 mm. Participants had no history of spontaneous preterm birth.
• Women were randomly assigned to receive either an Arabin cervical pessary or 200 mg/d vaginal progesterone for ≤ 36 weeks of gestation.
• The investigators examined a composite measure of adverse perinatal outcomes, including  (grade, > 1), chronic lung disease,  (grade, III or IV),  (stage, > 1), , stillbirth, and death of the baby.

TAKEAWAY:

• Adverse perinatal outcomes occurred in 6% of each treatment group, and the rate of spontaneous preterm birth did not differ significantly between the groups.
• In a subgroup analysis of 131 patients with a cervical length of ≤ 25 mm, spontaneous preterm birth at < 28 weeks occurred more often in the pessary group (16% vs 4%).
• Adverse perinatal outcomes also seemed to occur more frequently in the pessary group (24% vs 12%; relative risk, 2.1 [95% CI, 0.95-4.60]), in the subgroup analysis, according to the researchers.

IN PRACTICE:

“Even though the study was not powered for the subgroup with a short cervix of ≤ 25 mm, results suggest that a cervical pessary should not be used as preventive treatment in this group,” the researchers wrote.

SOURCE:

The study was led by Charlotte E. van Dijk, MD, with Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands. It was published online in The BMJ.

LIMITATIONS:

The researchers were unable to mask the treatment groups, which could introduce bias. The study’s reliance on self-reported medication adherence in the progesterone group and a lack of extra training for pessary placement might have influenced the outcomes, the researchers noted.

DISCLOSURES:

The study was supported by Stichting Stoptevroegbevallen, a nonprofit research foundation. An author disclosed financial ties with Merck.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Using polygenic risk scores along with positive family histories and breast cancer-associated gene mutations improves risk stratification for breast cancer screening.

METHODOLOGY:

A polygenic risk score — a measure of an individual’s risk for a disease based on the estimated effects of many genetic variants — is not typically included alongside family histories and pathogenic variants of genes, such as BRCA1 and PALB2, when assessing a woman’s risk for breast cancer and the need for earlier or more frequent screening.

To assess the potential for a polygenic risk score to improve breast cancer risk stratification, investigators in Finland used a nationwide genetic database to calculate polygenic risk score scores for 117,252 women and then linked the scores to their breast cancer outcomes, using the country’s nationwide mammography screening program, which screens women, ages 50-69 years, every 2 years.

The researchers evaluated the use of polygenic risk scores both alone and in combination with family histories and pathogenic variants — specifically, CHEK2 and PALB2 variants common in Finland.

The researchers also looked at how well polygenic risk scores predicted a person’s risk for any breast cancer as well as invasive, in situ, and bilateral at three timepoints: before, during, and after screening age.

TAKEAWAY:

Compared with a lower polygenic risk score (below 90%), a high polygenic risk score — a score in the top 10% — was associated with more than a twofold higher risk for any breast cancer before, during, and after screening age (hazard ratio [HR], 2.50, 2.38, and 2.11, respectively). Pathogenic variants and family histories led to similar risk assessments (HR, 3.13, 2.30, and 1.95, respectively, for pathogenic variants; HR, 1.97, 1.96, and 1.68, respectively, for family history).

A high polygenic risk score had a positive predictive value of 39.5% for a breast cancer diagnosis after a positive screening mammography, about the same as positive family history (35.5%) and pathogenic variants (35.9%). Combining a high polygenic risk score with a positive family history increased the positive predictive value to 44.6% and with pathogenic variant carriers increased the positive predictive value to 50.6%.

A high polygenic risk score was also associated with a twofold higher risk for interval breast cancer — a cancer diagnosed between screenings — and a higher risk for bilateral breast cancer during screening ages (HR, 4.71), suggesting that women with high scores may benefit from a shorter time interval between screenings or earlier screening, the researchers said.

Women with scores in the bottom 10% had a very low risk for both interval and screen-detected cancers. Those with negative family histories and no pathogenic variants did not reach the 2% cumulative incidence threshold for breast cancer screening until age 62 years, “suggesting opportunities for less frequent screens,” the researchers noted.

IN PRACTICE:

This study demonstrates the effectiveness of using a breast cancer polygenic risk score for risk stratification, “with optimal stratification reached through combining” this information with family history and pathogenic variants, the researchers concluded.

SOURCE:

The study, led by Nina Mars, MD, PhD, of the University of Helsinki, Helsinki, Finland, was published in the Journal of Clinical Oncology.

LIMITATIONS:

The work was limited largely to people with Finnish genetic ancestry. The benefits of including polygenic risk scores in screening programs need to be confirmed in clinical trials in areas with broader genetic ancestry; several trials are underway in the United States and elsewhere.

DISCLOSURES:

The study was funded by the European Union’s Horizon 2020 research and innovation program, the Cancer Foundation Finland, and others. The investigators didn’t have any relevant disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

Using polygenic risk scores along with positive family histories and breast cancer-associated gene mutations improves risk stratification for breast cancer screening.

METHODOLOGY:

A polygenic risk score — a measure of an individual’s risk for a disease based on the estimated effects of many genetic variants — is not typically included alongside family histories and pathogenic variants of genes, such as BRCA1 and PALB2, when assessing a woman’s risk for breast cancer and the need for earlier or more frequent screening.

To assess the potential for a polygenic risk score to improve breast cancer risk stratification, investigators in Finland used a nationwide genetic database to calculate polygenic risk score scores for 117,252 women and then linked the scores to their breast cancer outcomes, using the country’s nationwide mammography screening program, which screens women, ages 50-69 years, every 2 years.

The researchers evaluated the use of polygenic risk scores both alone and in combination with family histories and pathogenic variants — specifically, CHEK2 and PALB2 variants common in Finland.

The researchers also looked at how well polygenic risk scores predicted a person’s risk for any breast cancer as well as invasive, in situ, and bilateral at three timepoints: before, during, and after screening age.

TAKEAWAY:

Compared with a lower polygenic risk score (below 90%), a high polygenic risk score — a score in the top 10% — was associated with more than a twofold higher risk for any breast cancer before, during, and after screening age (hazard ratio [HR], 2.50, 2.38, and 2.11, respectively). Pathogenic variants and family histories led to similar risk assessments (HR, 3.13, 2.30, and 1.95, respectively, for pathogenic variants; HR, 1.97, 1.96, and 1.68, respectively, for family history).

A high polygenic risk score had a positive predictive value of 39.5% for a breast cancer diagnosis after a positive screening mammography, about the same as positive family history (35.5%) and pathogenic variants (35.9%). Combining a high polygenic risk score with a positive family history increased the positive predictive value to 44.6% and with pathogenic variant carriers increased the positive predictive value to 50.6%.

A high polygenic risk score was also associated with a twofold higher risk for interval breast cancer — a cancer diagnosed between screenings — and a higher risk for bilateral breast cancer during screening ages (HR, 4.71), suggesting that women with high scores may benefit from a shorter time interval between screenings or earlier screening, the researchers said.

Women with scores in the bottom 10% had a very low risk for both interval and screen-detected cancers. Those with negative family histories and no pathogenic variants did not reach the 2% cumulative incidence threshold for breast cancer screening until age 62 years, “suggesting opportunities for less frequent screens,” the researchers noted.

IN PRACTICE:

This study demonstrates the effectiveness of using a breast cancer polygenic risk score for risk stratification, “with optimal stratification reached through combining” this information with family history and pathogenic variants, the researchers concluded.

SOURCE:

The study, led by Nina Mars, MD, PhD, of the University of Helsinki, Helsinki, Finland, was published in the Journal of Clinical Oncology.

LIMITATIONS:

The work was limited largely to people with Finnish genetic ancestry. The benefits of including polygenic risk scores in screening programs need to be confirmed in clinical trials in areas with broader genetic ancestry; several trials are underway in the United States and elsewhere.

DISCLOSURES:

The study was funded by the European Union’s Horizon 2020 research and innovation program, the Cancer Foundation Finland, and others. The investigators didn’t have any relevant disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

Using polygenic risk scores along with positive family histories and breast cancer-associated gene mutations improves risk stratification for breast cancer screening.

METHODOLOGY:

A polygenic risk score — a measure of an individual’s risk for a disease based on the estimated effects of many genetic variants — is not typically included alongside family histories and pathogenic variants of genes, such as BRCA1 and PALB2, when assessing a woman’s risk for breast cancer and the need for earlier or more frequent screening.

To assess the potential for a polygenic risk score to improve breast cancer risk stratification, investigators in Finland used a nationwide genetic database to calculate polygenic risk score scores for 117,252 women and then linked the scores to their breast cancer outcomes, using the country’s nationwide mammography screening program, which screens women, ages 50-69 years, every 2 years.

The researchers evaluated the use of polygenic risk scores both alone and in combination with family histories and pathogenic variants — specifically, CHEK2 and PALB2 variants common in Finland.

The researchers also looked at how well polygenic risk scores predicted a person’s risk for any breast cancer as well as invasive, in situ, and bilateral at three timepoints: before, during, and after screening age.

TAKEAWAY:

Compared with a lower polygenic risk score (below 90%), a high polygenic risk score — a score in the top 10% — was associated with more than a twofold higher risk for any breast cancer before, during, and after screening age (hazard ratio [HR], 2.50, 2.38, and 2.11, respectively). Pathogenic variants and family histories led to similar risk assessments (HR, 3.13, 2.30, and 1.95, respectively, for pathogenic variants; HR, 1.97, 1.96, and 1.68, respectively, for family history).

A high polygenic risk score had a positive predictive value of 39.5% for a breast cancer diagnosis after a positive screening mammography, about the same as positive family history (35.5%) and pathogenic variants (35.9%). Combining a high polygenic risk score with a positive family history increased the positive predictive value to 44.6% and with pathogenic variant carriers increased the positive predictive value to 50.6%.

A high polygenic risk score was also associated with a twofold higher risk for interval breast cancer — a cancer diagnosed between screenings — and a higher risk for bilateral breast cancer during screening ages (HR, 4.71), suggesting that women with high scores may benefit from a shorter time interval between screenings or earlier screening, the researchers said.

Women with scores in the bottom 10% had a very low risk for both interval and screen-detected cancers. Those with negative family histories and no pathogenic variants did not reach the 2% cumulative incidence threshold for breast cancer screening until age 62 years, “suggesting opportunities for less frequent screens,” the researchers noted.

IN PRACTICE:

This study demonstrates the effectiveness of using a breast cancer polygenic risk score for risk stratification, “with optimal stratification reached through combining” this information with family history and pathogenic variants, the researchers concluded.

SOURCE:

The study, led by Nina Mars, MD, PhD, of the University of Helsinki, Helsinki, Finland, was published in the Journal of Clinical Oncology.

LIMITATIONS:

The work was limited largely to people with Finnish genetic ancestry. The benefits of including polygenic risk scores in screening programs need to be confirmed in clinical trials in areas with broader genetic ancestry; several trials are underway in the United States and elsewhere.

DISCLOSURES:

The study was funded by the European Union’s Horizon 2020 research and innovation program, the Cancer Foundation Finland, and others. The investigators didn’t have any relevant disclosures.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

I think we’re all aware that Alabama has put itself and the rest of the country into a moral bind when it comes to abortion and the status of human embryos. Back on February 16, 2024, the Alabama Supreme Court rendered a decision in a case called LePage v. Center for Reproductive Medicine, in which the court said that cryopreserved embryos in frozen nitrogen were legally equivalent to children.

They basically said they’re granted the same rights, meaning you certainly can’t destroy them. You certainly could not be in a situation where somebody said, “I’m going to not use them,” because once you create them, you seem to have some duty to make sure they end up in an environment where they can become full-fledged adults.

This decision that embryos in frozen nitrogen — but literally embryos anywhere — are the equivalent of full-bore children put Alabama in a terrible situation if you were a person or a couple seeking in vitro fertilization (IVF).

IVF requires the creation of many eggs. Women have to undergo drug treatment so that they superovulate. It’s too expensive to just go one egg at a time, egg procurement costs too much, and a cycle of IVF could cost as much as $15,000. There are some people who don’t make many eggs, so you want to get as many as you can.

When you get them, you freeze them, as happened in this Alabama case. By the way, what triggered the court case was that somebody in the lab dropped the tray with embryos in it, and they were basically accused not just of a mistake but of murder.

It’s pretty serious when you see this decision and you realize that if you make a multitude of embryos and then you had a child after two tries, but you have six more, you can’t destroy them. What are you going to do with them? Will they be under the governance of the utility company? What’s going to happen?

Many women in Alabama were outraged by the court’s opinion because they want to do IVF. In fact, politically, proponents of thinking that life begins at conception — or fetal personhood as it’s called, and the view that human embryos are children from the minute of conception — were stuck. It’s hard to argue that IVF is not pro-life. It’s hard to argue that people who desperately want to have children should find it difficult to use the technique.

The state has tried to pass a law that exempts IVF clinics from liability if they’re trying to use human embryos to make babies. I do not think this will stand. The court decision is fundamentally wrong, in part because human embryos are not children. They are potential children. They are possible children, but outside of implantation in the environment of a woman’s uterus, they’ll never become anything.

In fact, the court decision is a version of what used to be called preformationism, which sees a tiny baby inside a human embryo. That’s not true. We know today that you’ve got sets of genes that need messages from the mom in order to begin the process of division and development. It isn’t just expanding a tiny, miniature baby into a full-bore baby, as the court in Alabama seems to think.

Dr. Caplan, director, division of medical ethics, New York University Langone Medical Center, New York, has served as a director, officer, partner, employee, adviser, consultant, or trustee for Johnson & Johnson’s Panel for Compassionate Drug Use (unpaid position). He is a contributing author and adviser for Medscape.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

I think we’re all aware that Alabama has put itself and the rest of the country into a moral bind when it comes to abortion and the status of human embryos. Back on February 16, 2024, the Alabama Supreme Court rendered a decision in a case called LePage v. Center for Reproductive Medicine, in which the court said that cryopreserved embryos in frozen nitrogen were legally equivalent to children.

They basically said they’re granted the same rights, meaning you certainly can’t destroy them. You certainly could not be in a situation where somebody said, “I’m going to not use them,” because once you create them, you seem to have some duty to make sure they end up in an environment where they can become full-fledged adults.

This decision that embryos in frozen nitrogen — but literally embryos anywhere — are the equivalent of full-bore children put Alabama in a terrible situation if you were a person or a couple seeking in vitro fertilization (IVF).

IVF requires the creation of many eggs. Women have to undergo drug treatment so that they superovulate. It’s too expensive to just go one egg at a time, egg procurement costs too much, and a cycle of IVF could cost as much as $15,000. There are some people who don’t make many eggs, so you want to get as many as you can.

When you get them, you freeze them, as happened in this Alabama case. By the way, what triggered the court case was that somebody in the lab dropped the tray with embryos in it, and they were basically accused not just of a mistake but of murder.

It’s pretty serious when you see this decision and you realize that if you make a multitude of embryos and then you had a child after two tries, but you have six more, you can’t destroy them. What are you going to do with them? Will they be under the governance of the utility company? What’s going to happen?

Many women in Alabama were outraged by the court’s opinion because they want to do IVF. In fact, politically, proponents of thinking that life begins at conception — or fetal personhood as it’s called, and the view that human embryos are children from the minute of conception — were stuck. It’s hard to argue that IVF is not pro-life. It’s hard to argue that people who desperately want to have children should find it difficult to use the technique.

The state has tried to pass a law that exempts IVF clinics from liability if they’re trying to use human embryos to make babies. I do not think this will stand. The court decision is fundamentally wrong, in part because human embryos are not children. They are potential children. They are possible children, but outside of implantation in the environment of a woman’s uterus, they’ll never become anything.

In fact, the court decision is a version of what used to be called preformationism, which sees a tiny baby inside a human embryo. That’s not true. We know today that you’ve got sets of genes that need messages from the mom in order to begin the process of division and development. It isn’t just expanding a tiny, miniature baby into a full-bore baby, as the court in Alabama seems to think.

Dr. Caplan, director, division of medical ethics, New York University Langone Medical Center, New York, has served as a director, officer, partner, employee, adviser, consultant, or trustee for Johnson & Johnson’s Panel for Compassionate Drug Use (unpaid position). He is a contributing author and adviser for Medscape.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

I think we’re all aware that Alabama has put itself and the rest of the country into a moral bind when it comes to abortion and the status of human embryos. Back on February 16, 2024, the Alabama Supreme Court rendered a decision in a case called LePage v. Center for Reproductive Medicine, in which the court said that cryopreserved embryos in frozen nitrogen were legally equivalent to children.

They basically said they’re granted the same rights, meaning you certainly can’t destroy them. You certainly could not be in a situation where somebody said, “I’m going to not use them,” because once you create them, you seem to have some duty to make sure they end up in an environment where they can become full-fledged adults.

This decision that embryos in frozen nitrogen — but literally embryos anywhere — are the equivalent of full-bore children put Alabama in a terrible situation if you were a person or a couple seeking in vitro fertilization (IVF).

IVF requires the creation of many eggs. Women have to undergo drug treatment so that they superovulate. It’s too expensive to just go one egg at a time, egg procurement costs too much, and a cycle of IVF could cost as much as $15,000. There are some people who don’t make many eggs, so you want to get as many as you can.

When you get them, you freeze them, as happened in this Alabama case. By the way, what triggered the court case was that somebody in the lab dropped the tray with embryos in it, and they were basically accused not just of a mistake but of murder.

It’s pretty serious when you see this decision and you realize that if you make a multitude of embryos and then you had a child after two tries, but you have six more, you can’t destroy them. What are you going to do with them? Will they be under the governance of the utility company? What’s going to happen?

Many women in Alabama were outraged by the court’s opinion because they want to do IVF. In fact, politically, proponents of thinking that life begins at conception — or fetal personhood as it’s called, and the view that human embryos are children from the minute of conception — were stuck. It’s hard to argue that IVF is not pro-life. It’s hard to argue that people who desperately want to have children should find it difficult to use the technique.

The state has tried to pass a law that exempts IVF clinics from liability if they’re trying to use human embryos to make babies. I do not think this will stand. The court decision is fundamentally wrong, in part because human embryos are not children. They are potential children. They are possible children, but outside of implantation in the environment of a woman’s uterus, they’ll never become anything.

In fact, the court decision is a version of what used to be called preformationism, which sees a tiny baby inside a human embryo. That’s not true. We know today that you’ve got sets of genes that need messages from the mom in order to begin the process of division and development. It isn’t just expanding a tiny, miniature baby into a full-bore baby, as the court in Alabama seems to think.

Dr. Caplan, director, division of medical ethics, New York University Langone Medical Center, New York, has served as a director, officer, partner, employee, adviser, consultant, or trustee for Johnson & Johnson’s Panel for Compassionate Drug Use (unpaid position). He is a contributing author and adviser for Medscape.

A version of this article appeared on Medscape.com.

Female bias in autoimmune disease can be profound, with nine females developing lupus for every male affected, and nearly twice that ratio seen in Sjögren disease.

For years, researchers have worked to determine the reasons for sex-linked differences in immune response and autoimmunity, with environmental factors, sex hormones, and X-chromosome inactivation — the process by which a second X chromosome is silenced — all seen as having roles.

More recently, different groups of researchers have homed in on a long noncoding RNA fragment called X-inactive specific transcript, or Xist, as a potential driver of sex bias in autoimmune disease. Xist, which occurs in female mammals, has been known since the 1990s as the master regulator of X-chromosome inactivation, the process by which the second X chromosome is silenced, averting a fatal double dose of X-linked genes.

The inactivation process, which scientists liken to wrapping the extra X with a fluffy cloud of proteins, occurs early in embryonic development. After its initial work silencing the X, Xist is produced throughout the female’s life, allowing X inactivation to be maintained.

But is it possible that Xist, and the many dozens of proteins it recruits to keep that extra X chromosome silent, can also provoke autoimmunity? This is the question that several teams of researchers have been grappling with, resulting in provocative findings and opening exciting new avenues of discovery.
 

Xist Protein Complexes Make Male Mice Vulnerable to Lupus

In February, researchers Howard Chang, MD, PhD, and Diana Dou, PhD, of Stanford University in Stanford, California, made worldwide news when they published results from an experiment using male mice genetically engineered to carry a non-silencing form of Xist on one of their chromosomes.

Xist acts like a scaffold, recruiting multiple protein complexes to help it do its job. Dr. Dou explained in an interview that her team has been eyeing suspiciously for years the dozens of proteins Xist recruits in the process of X-chromosome inactivation, many of which are known autoantigens.

When the mice were injected with pristane, a chemical that induces lupus-like autoimmunity in mice, the Xist-producing males developed symptoms at a rate similar to that of females, while wild-type male mice did not.

By using a male model, the scientists could determine whether Xist could cause an increased vulnerability for autoimmunity absent the influence of female hormones and development. “Everything else about the animal is male,” Dr. Dou commented. “You just add the formation of the Xist ribonucleoprotein particles — Xist RNA plus the associating proteins — to male cells that would not ordinarily have these particles. Is just having the particles present in these animals sufficient to increase their autoimmunity? This is what our paper showed: That just having expression of Xist, the presence of these Xist [ribonucleoproteins], is enough in permissive genetic backgrounds to invoke higher incidence and severity of autoimmune disease development in our pristane-induced lupus model.”

The Stanford group sees the Xist protein complex, which they have studied extensively, as a key to understanding how Xist might provoke autoimmunity. Nonetheless, Dr. Dou said, “It’s important to note that there are other contributing factors, which is why not all females develop autoimmunity, and we had very different results in our autoimmune-resistant mouse strain compared to the more autoimmune-prone strain. Xist is a factor, but many factors are required to subvert the checkpoints in immune balance and allow the progression to full-blown autoimmunity.”
 

Faulty X Inactivation and Gene Escape

The understanding that Xist might be implicated in autoimmune disease — and explain some of its female bias — is not new.

About a decade ago, Montserrat Anguera, PhD, a biologist at the University of Pennsylvania, Philadelphia, began looking at the relationship of X-chromosome inactivation, which by definition involves Xist, and lupus.

University of Pennsylvania

Dr. Anguera hypothesized that imperfect X inactivation allowed for greater escape of genes associated with immunity and autoimmunity. Studying patients with lupus, Dr. Anguera found that the silencing process was abnormal, allowing more of these genes to escape the silenced X — including toll-like receptor 7 (TLR-7) and other genes implicated in the pathogenesis of lupus.

“If you get increased expression of certain genes from the [silenced] X, like TLR-7, it can result in autoimmune disease,” Dr. Anguera said. “So what we think is that in the lupus patients, because the silencing is impacted, you’re going to have more expression happening from the inactive X. And then in conjunction with the active X, that’s going to throw off the dosage [of autoimmunity-linked genes]. You’re changing the dosage of genes, and that’s what’s critical.”

Even among patients with lupus whose symptoms are well controlled with medication, “if you look at their T cells and B cells, they still have messed up X inactivation,” Dr. Anguera said. “The Xist RNA that’s supposed to be tethered to the inactive X in a fluffy cloud is not localized, and instead is dispersed all over the nucleus.”

Dr. Anguera pointed out that autoimmune diseases are complex and can result from a combination of factors. “You also have a host of hormonal and environmental contributors, such as previous viral infections,” she said. And of course men can also develop lupus, meaning that the X chromosome cannot explain everything.

Dr. Anguera said that, while the findings by the Stanford scientists do not explain the full pathogenesis of lupus and related diseases, they still support a strong role for Xist in sex-biased autoimmune diseases. “It’s sort of another take on it,” she said.
 

Is It the Proteins, the RNA, or Both?

The Stanford team points to the proteins recruited by Xist in the process of X-chromosome inactivation as the likely trigger of autoimmunity. However, a group of researchers at Johns Hopkins University in Baltimore, Maryland, made the case in a 2022 paper that Xist RNA itself was dangerous. They found that numerous short RNA sequences within the Xist molecule serve as ligands for TLR-7. And TLR-7 ligation causes plasmacytoid dendritic cells to overproduce type 1 interferon, a classic hallmark of lupus.

Alexander Girgis

“Within rheumatology, the diseases that tend to be most female biased are the ones that are antibody positive and have this presence of upregulated interferon,” explained Brendan Antiochos, MD. “Lupus is an example of that. Sjögren’s syndrome is another. So there’s always been this quest to want to understand the mechanisms that explain why women would have more autoimmunity. And are there specific pathways which could contribute? One of the key pathways that’s been shown in humans and in mice to be important in lupus is toll-like receptor signaling.” Most convincingly, one recent study showed that people who have a gain-of-function mutation in their TLR-7 gene get a spontaneous form of lupus.

Wes Linda

These findings led Erika Darrah, PhD, and her colleague Dr. Antiochos to begin looking more deeply into which RNAs could be triggering this signaling pathway. “We started to think: Well, there is this sex bias. Could it be that women have unique RNAs that could potentially act as triggers for TLR-7 signaling?” Dr. Darrah said.

Dr. Darrah and Dr. Antiochos looked at publicly available genetic data to identify sex-biased sources of self-RNA containing TLR-7 ligands. Xist, they found, was chock full of them. “Every time we analyzed that data, no matter what filter we applied, Xist kept popping out over and over again as the most highly female skewed RNA, the RNA most likely to contain these TLR-7 binding motifs,” Dr. Darrah said. “We started to formulate the hypothesis that Xist was actually promoting responses that were dangerous and pathogenic in lupus.”

That finding led the team to conduct in-vitro experiments that showed different fragments of Xist can activate TLR-7, resulting in higher interferon production. Finally, they looked at blood and kidney cells from women with lupus and found that higher Xist expression correlated with more interferon production, and higher disease activity. “The more Xist, the sicker people were,” Dr. Darrah said.
 

Xist’s Other Functions

Xist was first studied in the 1990s, and most research has centered on its primary role in X-chromosome inactivation. A research group led by Kathrin Plath, PhD, at the University of California, Los Angeles, has been occupied for years with untangling exactly how Xist does what it does. “It’s a very clever RNA, right? It can silence the whole chromosome,” Dr. Plath said in an interview.

In 2021, Dr. Plath and her colleagues established in detail how Xist executes silencing, setting down pairs of molecules in specific spots along the chromosome and building huge protein clouds around them. “We worked on learning where Xist binds and what proteins it binds, drilling down to understand how these proteins and the RNA are coming together.”

Dr. Plath has long suspected that Xist has other functions besides X inactivation, and she and her colleagues are starting to identify them. Early this year they published the surprising finding that Xist can regulate gene expression in autosomes, or non–sex-linked chromosomes, “which it might well also do in cancer cells and lymphocytes,” Dr. Plath said. “And now there is this new evidence of an autoimmune function,” she said. “It’s a super exciting time.”

The different hypotheses surrounding Xist’s role in sex-biased autoimmunity aren’t mutually exclusive, Dr. Plath said. “There’s a tremendous enrichment of proteins occurring” during X inactivation, she said, supporting the Stanford team’s hypothesis that proteins are triggering autoimmunity. As for the Johns Hopkins researchers’ understanding that Xist RNA itself is the trigger, “I’m totally open to that,” she said. “Why can’t it be an autoantigen?”

The other model in the field, Dr. Plath noted, is the one proposed by Dr. Anguera — “that there’s [gene] escape from X-inactivation — that females have more escape expression, and that Xist is more dispersed in the lymphocytes [of patients with lupus]. In fact, Xist becoming a little dispersed might make it a better antigen. So I do think everything is possible.”

The plethora of new findings related to autoimmunity has caused Dr. Plath to consider redirecting her lab’s focus toward more translational work, “because we are obviously good at studying Xist.” Among the mysteries Dr. Plath would like to solve is how some genes manage to escape the Xist cloud.

What is needed, she said, is collaboration. “Everyone will come up with different ideas. So I think it’s good to have more people look at things together. Then the field will achieve a breakthrough treatment.”

Female bias in autoimmune disease can be profound, with nine females developing lupus for every male affected, and nearly twice that ratio seen in Sjögren disease.

For years, researchers have worked to determine the reasons for sex-linked differences in immune response and autoimmunity, with environmental factors, sex hormones, and X-chromosome inactivation — the process by which a second X chromosome is silenced — all seen as having roles.

More recently, different groups of researchers have homed in on a long noncoding RNA fragment called X-inactive specific transcript, or Xist, as a potential driver of sex bias in autoimmune disease. Xist, which occurs in female mammals, has been known since the 1990s as the master regulator of X-chromosome inactivation, the process by which the second X chromosome is silenced, averting a fatal double dose of X-linked genes.

The inactivation process, which scientists liken to wrapping the extra X with a fluffy cloud of proteins, occurs early in embryonic development. After its initial work silencing the X, Xist is produced throughout the female’s life, allowing X inactivation to be maintained.

But is it possible that Xist, and the many dozens of proteins it recruits to keep that extra X chromosome silent, can also provoke autoimmunity? This is the question that several teams of researchers have been grappling with, resulting in provocative findings and opening exciting new avenues of discovery.
 

Xist Protein Complexes Make Male Mice Vulnerable to Lupus

In February, researchers Howard Chang, MD, PhD, and Diana Dou, PhD, of Stanford University in Stanford, California, made worldwide news when they published results from an experiment using male mice genetically engineered to carry a non-silencing form of Xist on one of their chromosomes.

Xist acts like a scaffold, recruiting multiple protein complexes to help it do its job. Dr. Dou explained in an interview that her team has been eyeing suspiciously for years the dozens of proteins Xist recruits in the process of X-chromosome inactivation, many of which are known autoantigens.

When the mice were injected with pristane, a chemical that induces lupus-like autoimmunity in mice, the Xist-producing males developed symptoms at a rate similar to that of females, while wild-type male mice did not.

By using a male model, the scientists could determine whether Xist could cause an increased vulnerability for autoimmunity absent the influence of female hormones and development. “Everything else about the animal is male,” Dr. Dou commented. “You just add the formation of the Xist ribonucleoprotein particles — Xist RNA plus the associating proteins — to male cells that would not ordinarily have these particles. Is just having the particles present in these animals sufficient to increase their autoimmunity? This is what our paper showed: That just having expression of Xist, the presence of these Xist [ribonucleoproteins], is enough in permissive genetic backgrounds to invoke higher incidence and severity of autoimmune disease development in our pristane-induced lupus model.”

The Stanford group sees the Xist protein complex, which they have studied extensively, as a key to understanding how Xist might provoke autoimmunity. Nonetheless, Dr. Dou said, “It’s important to note that there are other contributing factors, which is why not all females develop autoimmunity, and we had very different results in our autoimmune-resistant mouse strain compared to the more autoimmune-prone strain. Xist is a factor, but many factors are required to subvert the checkpoints in immune balance and allow the progression to full-blown autoimmunity.”
 

Faulty X Inactivation and Gene Escape

The understanding that Xist might be implicated in autoimmune disease — and explain some of its female bias — is not new.

About a decade ago, Montserrat Anguera, PhD, a biologist at the University of Pennsylvania, Philadelphia, began looking at the relationship of X-chromosome inactivation, which by definition involves Xist, and lupus.

University of Pennsylvania

Dr. Anguera hypothesized that imperfect X inactivation allowed for greater escape of genes associated with immunity and autoimmunity. Studying patients with lupus, Dr. Anguera found that the silencing process was abnormal, allowing more of these genes to escape the silenced X — including toll-like receptor 7 (TLR-7) and other genes implicated in the pathogenesis of lupus.

“If you get increased expression of certain genes from the [silenced] X, like TLR-7, it can result in autoimmune disease,” Dr. Anguera said. “So what we think is that in the lupus patients, because the silencing is impacted, you’re going to have more expression happening from the inactive X. And then in conjunction with the active X, that’s going to throw off the dosage [of autoimmunity-linked genes]. You’re changing the dosage of genes, and that’s what’s critical.”

Even among patients with lupus whose symptoms are well controlled with medication, “if you look at their T cells and B cells, they still have messed up X inactivation,” Dr. Anguera said. “The Xist RNA that’s supposed to be tethered to the inactive X in a fluffy cloud is not localized, and instead is dispersed all over the nucleus.”

Dr. Anguera pointed out that autoimmune diseases are complex and can result from a combination of factors. “You also have a host of hormonal and environmental contributors, such as previous viral infections,” she said. And of course men can also develop lupus, meaning that the X chromosome cannot explain everything.

Dr. Anguera said that, while the findings by the Stanford scientists do not explain the full pathogenesis of lupus and related diseases, they still support a strong role for Xist in sex-biased autoimmune diseases. “It’s sort of another take on it,” she said.
 

Is It the Proteins, the RNA, or Both?

The Stanford team points to the proteins recruited by Xist in the process of X-chromosome inactivation as the likely trigger of autoimmunity. However, a group of researchers at Johns Hopkins University in Baltimore, Maryland, made the case in a 2022 paper that Xist RNA itself was dangerous. They found that numerous short RNA sequences within the Xist molecule serve as ligands for TLR-7. And TLR-7 ligation causes plasmacytoid dendritic cells to overproduce type 1 interferon, a classic hallmark of lupus.

Alexander Girgis

“Within rheumatology, the diseases that tend to be most female biased are the ones that are antibody positive and have this presence of upregulated interferon,” explained Brendan Antiochos, MD. “Lupus is an example of that. Sjögren’s syndrome is another. So there’s always been this quest to want to understand the mechanisms that explain why women would have more autoimmunity. And are there specific pathways which could contribute? One of the key pathways that’s been shown in humans and in mice to be important in lupus is toll-like receptor signaling.” Most convincingly, one recent study showed that people who have a gain-of-function mutation in their TLR-7 gene get a spontaneous form of lupus.

Wes Linda

These findings led Erika Darrah, PhD, and her colleague Dr. Antiochos to begin looking more deeply into which RNAs could be triggering this signaling pathway. “We started to think: Well, there is this sex bias. Could it be that women have unique RNAs that could potentially act as triggers for TLR-7 signaling?” Dr. Darrah said.

Dr. Darrah and Dr. Antiochos looked at publicly available genetic data to identify sex-biased sources of self-RNA containing TLR-7 ligands. Xist, they found, was chock full of them. “Every time we analyzed that data, no matter what filter we applied, Xist kept popping out over and over again as the most highly female skewed RNA, the RNA most likely to contain these TLR-7 binding motifs,” Dr. Darrah said. “We started to formulate the hypothesis that Xist was actually promoting responses that were dangerous and pathogenic in lupus.”

That finding led the team to conduct in-vitro experiments that showed different fragments of Xist can activate TLR-7, resulting in higher interferon production. Finally, they looked at blood and kidney cells from women with lupus and found that higher Xist expression correlated with more interferon production, and higher disease activity. “The more Xist, the sicker people were,” Dr. Darrah said.
 

Xist’s Other Functions

Xist was first studied in the 1990s, and most research has centered on its primary role in X-chromosome inactivation. A research group led by Kathrin Plath, PhD, at the University of California, Los Angeles, has been occupied for years with untangling exactly how Xist does what it does. “It’s a very clever RNA, right? It can silence the whole chromosome,” Dr. Plath said in an interview.

In 2021, Dr. Plath and her colleagues established in detail how Xist executes silencing, setting down pairs of molecules in specific spots along the chromosome and building huge protein clouds around them. “We worked on learning where Xist binds and what proteins it binds, drilling down to understand how these proteins and the RNA are coming together.”

Dr. Plath has long suspected that Xist has other functions besides X inactivation, and she and her colleagues are starting to identify them. Early this year they published the surprising finding that Xist can regulate gene expression in autosomes, or non–sex-linked chromosomes, “which it might well also do in cancer cells and lymphocytes,” Dr. Plath said. “And now there is this new evidence of an autoimmune function,” she said. “It’s a super exciting time.”

The different hypotheses surrounding Xist’s role in sex-biased autoimmunity aren’t mutually exclusive, Dr. Plath said. “There’s a tremendous enrichment of proteins occurring” during X inactivation, she said, supporting the Stanford team’s hypothesis that proteins are triggering autoimmunity. As for the Johns Hopkins researchers’ understanding that Xist RNA itself is the trigger, “I’m totally open to that,” she said. “Why can’t it be an autoantigen?”

The other model in the field, Dr. Plath noted, is the one proposed by Dr. Anguera — “that there’s [gene] escape from X-inactivation — that females have more escape expression, and that Xist is more dispersed in the lymphocytes [of patients with lupus]. In fact, Xist becoming a little dispersed might make it a better antigen. So I do think everything is possible.”

The plethora of new findings related to autoimmunity has caused Dr. Plath to consider redirecting her lab’s focus toward more translational work, “because we are obviously good at studying Xist.” Among the mysteries Dr. Plath would like to solve is how some genes manage to escape the Xist cloud.

What is needed, she said, is collaboration. “Everyone will come up with different ideas. So I think it’s good to have more people look at things together. Then the field will achieve a breakthrough treatment.”

Female bias in autoimmune disease can be profound, with nine females developing lupus for every male affected, and nearly twice that ratio seen in Sjögren disease.

For years, researchers have worked to determine the reasons for sex-linked differences in immune response and autoimmunity, with environmental factors, sex hormones, and X-chromosome inactivation — the process by which a second X chromosome is silenced — all seen as having roles.

More recently, different groups of researchers have homed in on a long noncoding RNA fragment called X-inactive specific transcript, or Xist, as a potential driver of sex bias in autoimmune disease. Xist, which occurs in female mammals, has been known since the 1990s as the master regulator of X-chromosome inactivation, the process by which the second X chromosome is silenced, averting a fatal double dose of X-linked genes.

The inactivation process, which scientists liken to wrapping the extra X with a fluffy cloud of proteins, occurs early in embryonic development. After its initial work silencing the X, Xist is produced throughout the female’s life, allowing X inactivation to be maintained.

But is it possible that Xist, and the many dozens of proteins it recruits to keep that extra X chromosome silent, can also provoke autoimmunity? This is the question that several teams of researchers have been grappling with, resulting in provocative findings and opening exciting new avenues of discovery.
 

Xist Protein Complexes Make Male Mice Vulnerable to Lupus

In February, researchers Howard Chang, MD, PhD, and Diana Dou, PhD, of Stanford University in Stanford, California, made worldwide news when they published results from an experiment using male mice genetically engineered to carry a non-silencing form of Xist on one of their chromosomes.

Xist acts like a scaffold, recruiting multiple protein complexes to help it do its job. Dr. Dou explained in an interview that her team has been eyeing suspiciously for years the dozens of proteins Xist recruits in the process of X-chromosome inactivation, many of which are known autoantigens.

When the mice were injected with pristane, a chemical that induces lupus-like autoimmunity in mice, the Xist-producing males developed symptoms at a rate similar to that of females, while wild-type male mice did not.

By using a male model, the scientists could determine whether Xist could cause an increased vulnerability for autoimmunity absent the influence of female hormones and development. “Everything else about the animal is male,” Dr. Dou commented. “You just add the formation of the Xist ribonucleoprotein particles — Xist RNA plus the associating proteins — to male cells that would not ordinarily have these particles. Is just having the particles present in these animals sufficient to increase their autoimmunity? This is what our paper showed: That just having expression of Xist, the presence of these Xist [ribonucleoproteins], is enough in permissive genetic backgrounds to invoke higher incidence and severity of autoimmune disease development in our pristane-induced lupus model.”

The Stanford group sees the Xist protein complex, which they have studied extensively, as a key to understanding how Xist might provoke autoimmunity. Nonetheless, Dr. Dou said, “It’s important to note that there are other contributing factors, which is why not all females develop autoimmunity, and we had very different results in our autoimmune-resistant mouse strain compared to the more autoimmune-prone strain. Xist is a factor, but many factors are required to subvert the checkpoints in immune balance and allow the progression to full-blown autoimmunity.”
 

Faulty X Inactivation and Gene Escape

The understanding that Xist might be implicated in autoimmune disease — and explain some of its female bias — is not new.

About a decade ago, Montserrat Anguera, PhD, a biologist at the University of Pennsylvania, Philadelphia, began looking at the relationship of X-chromosome inactivation, which by definition involves Xist, and lupus.

University of Pennsylvania

Dr. Anguera hypothesized that imperfect X inactivation allowed for greater escape of genes associated with immunity and autoimmunity. Studying patients with lupus, Dr. Anguera found that the silencing process was abnormal, allowing more of these genes to escape the silenced X — including toll-like receptor 7 (TLR-7) and other genes implicated in the pathogenesis of lupus.

“If you get increased expression of certain genes from the [silenced] X, like TLR-7, it can result in autoimmune disease,” Dr. Anguera said. “So what we think is that in the lupus patients, because the silencing is impacted, you’re going to have more expression happening from the inactive X. And then in conjunction with the active X, that’s going to throw off the dosage [of autoimmunity-linked genes]. You’re changing the dosage of genes, and that’s what’s critical.”

Even among patients with lupus whose symptoms are well controlled with medication, “if you look at their T cells and B cells, they still have messed up X inactivation,” Dr. Anguera said. “The Xist RNA that’s supposed to be tethered to the inactive X in a fluffy cloud is not localized, and instead is dispersed all over the nucleus.”

Dr. Anguera pointed out that autoimmune diseases are complex and can result from a combination of factors. “You also have a host of hormonal and environmental contributors, such as previous viral infections,” she said. And of course men can also develop lupus, meaning that the X chromosome cannot explain everything.

Dr. Anguera said that, while the findings by the Stanford scientists do not explain the full pathogenesis of lupus and related diseases, they still support a strong role for Xist in sex-biased autoimmune diseases. “It’s sort of another take on it,” she said.
 

Is It the Proteins, the RNA, or Both?

The Stanford team points to the proteins recruited by Xist in the process of X-chromosome inactivation as the likely trigger of autoimmunity. However, a group of researchers at Johns Hopkins University in Baltimore, Maryland, made the case in a 2022 paper that Xist RNA itself was dangerous. They found that numerous short RNA sequences within the Xist molecule serve as ligands for TLR-7. And TLR-7 ligation causes plasmacytoid dendritic cells to overproduce type 1 interferon, a classic hallmark of lupus.

Alexander Girgis

“Within rheumatology, the diseases that tend to be most female biased are the ones that are antibody positive and have this presence of upregulated interferon,” explained Brendan Antiochos, MD. “Lupus is an example of that. Sjögren’s syndrome is another. So there’s always been this quest to want to understand the mechanisms that explain why women would have more autoimmunity. And are there specific pathways which could contribute? One of the key pathways that’s been shown in humans and in mice to be important in lupus is toll-like receptor signaling.” Most convincingly, one recent study showed that people who have a gain-of-function mutation in their TLR-7 gene get a spontaneous form of lupus.

Wes Linda

These findings led Erika Darrah, PhD, and her colleague Dr. Antiochos to begin looking more deeply into which RNAs could be triggering this signaling pathway. “We started to think: Well, there is this sex bias. Could it be that women have unique RNAs that could potentially act as triggers for TLR-7 signaling?” Dr. Darrah said.

Dr. Darrah and Dr. Antiochos looked at publicly available genetic data to identify sex-biased sources of self-RNA containing TLR-7 ligands. Xist, they found, was chock full of them. “Every time we analyzed that data, no matter what filter we applied, Xist kept popping out over and over again as the most highly female skewed RNA, the RNA most likely to contain these TLR-7 binding motifs,” Dr. Darrah said. “We started to formulate the hypothesis that Xist was actually promoting responses that were dangerous and pathogenic in lupus.”

That finding led the team to conduct in-vitro experiments that showed different fragments of Xist can activate TLR-7, resulting in higher interferon production. Finally, they looked at blood and kidney cells from women with lupus and found that higher Xist expression correlated with more interferon production, and higher disease activity. “The more Xist, the sicker people were,” Dr. Darrah said.
 

Xist’s Other Functions

Xist was first studied in the 1990s, and most research has centered on its primary role in X-chromosome inactivation. A research group led by Kathrin Plath, PhD, at the University of California, Los Angeles, has been occupied for years with untangling exactly how Xist does what it does. “It’s a very clever RNA, right? It can silence the whole chromosome,” Dr. Plath said in an interview.

In 2021, Dr. Plath and her colleagues established in detail how Xist executes silencing, setting down pairs of molecules in specific spots along the chromosome and building huge protein clouds around them. “We worked on learning where Xist binds and what proteins it binds, drilling down to understand how these proteins and the RNA are coming together.”

Dr. Plath has long suspected that Xist has other functions besides X inactivation, and she and her colleagues are starting to identify them. Early this year they published the surprising finding that Xist can regulate gene expression in autosomes, or non–sex-linked chromosomes, “which it might well also do in cancer cells and lymphocytes,” Dr. Plath said. “And now there is this new evidence of an autoimmune function,” she said. “It’s a super exciting time.”

The different hypotheses surrounding Xist’s role in sex-biased autoimmunity aren’t mutually exclusive, Dr. Plath said. “There’s a tremendous enrichment of proteins occurring” during X inactivation, she said, supporting the Stanford team’s hypothesis that proteins are triggering autoimmunity. As for the Johns Hopkins researchers’ understanding that Xist RNA itself is the trigger, “I’m totally open to that,” she said. “Why can’t it be an autoantigen?”

The other model in the field, Dr. Plath noted, is the one proposed by Dr. Anguera — “that there’s [gene] escape from X-inactivation — that females have more escape expression, and that Xist is more dispersed in the lymphocytes [of patients with lupus]. In fact, Xist becoming a little dispersed might make it a better antigen. So I do think everything is possible.”

The plethora of new findings related to autoimmunity has caused Dr. Plath to consider redirecting her lab’s focus toward more translational work, “because we are obviously good at studying Xist.” Among the mysteries Dr. Plath would like to solve is how some genes manage to escape the Xist cloud.

What is needed, she said, is collaboration. “Everyone will come up with different ideas. So I think it’s good to have more people look at things together. Then the field will achieve a breakthrough treatment.”

Disparities and geographical variations in cervical cancer outcomes appear to be related to social determinants of health, including socioeconomic status, race or ethnicity, and proximity to facilities skilled at early-stage diagnosis and treatment.

These findings come from analyses of insurance data gathered via the Cervical Cancer Geo-Analyzer tool, a publicly available online instrument designed to provide visual representation of recurrent or metastatic cervical cancer burden across metropolitan statistical areas in the United States over multiple years.

[Reporting the findings of] “this study is the first step to optimize healthcare resources allocations, advocate for policy changes that will minimize access barriers, and tailor education for modern treatment options to help reduce and improve outcomes for cervical cancer in US patients,” said Tara Castellano, MD, an author and presenter of this new research, at the Society of Gynecologic Oncology’s Annual Meeting on Women’s Cancer, held in San Diego.

Seeing Cancer Cases

Dr. Castellano and colleagues previously reported that the Geo-Analyzer tool effectively provides quantified evidence of cervical cancer disease burden and graphic representation of geographical variations across the United States for both incident and recurrent/metastatic cervical cancer.

In the current analysis, Dr. Castellano, of Louisiana State University School of Medicine in New Orleans, discussed potential factors related to cervical cancer incidence and geographic variations.

The study builds on previous studies that have shown that Black and Hispanic women have longer time to treatment and worse cervical cancer outcomes than White women.

For example, in a study published in the International Journal of Gynecologic Cancer, Marilyn Huang, MD, and colleagues from the University of Miami Miller School of Medicine, Miami, Florida, and other centers in Miami looked at time to treatment in a diverse population of 274 women starting therapy for cervical cancer.

They found that insurance type (private, public, or none) contributed to delay in treatment initiation regardless of the treatment modality, and that the patient’s language and institution of diagnosis also influenced time to treatment.

In a separate scientific poster presented at SGO 2024, Dr. Castellano and colleagues reported that, among women with newly diagnosed endometrial cancer, the median time to treatment was 7 days longer for both Hispanic and Black women, compared with non-Hispanic White women. In addition, Black women had a 7-day longer time to receiving their first therapy for advanced disease. All of these differences were statistically significant.

Dr. Castellano told this news organization that the time-to-treatment disparities in the endometrial cancer study were determined by diagnostic codes and the timing of insurance claims.

Reasons for the disparities may include more limited access to care and structural and systemic biases in the healthcare systems where the majority of Black and Hispanic patients live, she said.

Insurance Database

In the new study on cervical cancer, Dr. Castellano and her team defined cervical cancer burden as prevalent cervical cancer diagnosis per 100,000 eligible women enrolled in a commercial insurance plan, Medicaid, or Medicare Advantage. Recurrent or metastatic cancer was determined to be the proportion of patients with cervical cancer who initiated systemic therapy.

The goals of the study were to provide a visualization of geographical distribution of cervical cancer in the US, and to quantify associations between early or advanced cancers with screening rates, poverty level, race/ethnicity, and access to brachytherapy.

The administrative claims database queried for the study included information on 75,521 women (median age 53) with a first diagnosis of cervical cancer from 2015 through 2022, and 14,033 women with recurrent or metastatic malignancies (median age 59 years).

Distribution of cases was higher in the South compared with in other US regions (37% vs approximately 20% for other regions).

Looking at the association between screening rates and disease burden from 2017 through 2022, the Geo-Analyzer showed that higher screening rates were significantly associated with decreased burden of new cases only in the South, whereas higher screening rates were associated with lower recurrent/metastatic disease burden in the Midwest and South, but a higher disease burden in the West.

In all regions, there was a significant association between decreased early cancer burden in areas with high percentages of women of Asian heritage, and significantly increased burden in areas with large populations of women of Hispanic origin.

The only significant association of race/ethnicity with recurrent/metastatic burden was a decrease in the Midwest in populations with large Asian populations.

An analysis of the how poverty levels affected screening and disease burden showed that in areas with a high percentage of low-income households there were significant associations with decreased cervical cancer screening and higher burden of newly diagnosed cases.

Poverty levels were significantly associated with recurrent/metastatic cancers only in the South.

The investigators also found that the presence of one or more brachytherapy centers within a ZIP-3 region (that is, a large geographic area designated by the first 3 digits of ZIP codes rather than 5-digit city codes) was associated with a 2.7% reduction in recurrent or metastatic cervical cancer burden (P less than .001).

Demographic Marker?

Reasons for disparities are complex and may involve a combination of inadequate health literacy and social and economic circumstances, said Cesar Castro, MD, commenting on the new cervical cancer study.

He noted in an interview that “the concept that a single Pap smear is often insufficient to capture precancerous changes, and hence the need for serial testing every 3 years, can be lost on individuals who also have competing challenges securing paychecks and/or dependent care. Historical barriers such as perceptions of the underlying cause of cervical cancer, the HPV virus, being a sexually transmitted disease and hence a taboo subject, also underpin decision-making. These sentiments have also fueled resistance towards HPV vaccination in young girls and boys.”

Dr. Castro, who is Program Director for Gynecologic Oncology at the Mass General Cancer Center in Boston, pointed out that treatments for cervical cancer often involve surgery or a combination of chemotherapy and radiation, and that side effects from these interventions may be especially disruptive to the lives of women who are breadwinners or caregivers for their families.

“These are the shackles that poverty places on many Black and Hispanic women notably in under-resourced regions domestically and globally,” he said.

The study was supported by Seagen and Genmab. Dr. Castellano disclosed consulting fees from GSK and Nykode and grant support from BMS. Dr. Castro reported no relevant conflicts of interest and was not involved in either of the studies presented at the meeting.

Disparities and geographical variations in cervical cancer outcomes appear to be related to social determinants of health, including socioeconomic status, race or ethnicity, and proximity to facilities skilled at early-stage diagnosis and treatment.

These findings come from analyses of insurance data gathered via the Cervical Cancer Geo-Analyzer tool, a publicly available online instrument designed to provide visual representation of recurrent or metastatic cervical cancer burden across metropolitan statistical areas in the United States over multiple years.

[Reporting the findings of] “this study is the first step to optimize healthcare resources allocations, advocate for policy changes that will minimize access barriers, and tailor education for modern treatment options to help reduce and improve outcomes for cervical cancer in US patients,” said Tara Castellano, MD, an author and presenter of this new research, at the Society of Gynecologic Oncology’s Annual Meeting on Women’s Cancer, held in San Diego.

Seeing Cancer Cases

Dr. Castellano and colleagues previously reported that the Geo-Analyzer tool effectively provides quantified evidence of cervical cancer disease burden and graphic representation of geographical variations across the United States for both incident and recurrent/metastatic cervical cancer.

In the current analysis, Dr. Castellano, of Louisiana State University School of Medicine in New Orleans, discussed potential factors related to cervical cancer incidence and geographic variations.

The study builds on previous studies that have shown that Black and Hispanic women have longer time to treatment and worse cervical cancer outcomes than White women.

For example, in a study published in the International Journal of Gynecologic Cancer, Marilyn Huang, MD, and colleagues from the University of Miami Miller School of Medicine, Miami, Florida, and other centers in Miami looked at time to treatment in a diverse population of 274 women starting therapy for cervical cancer.

They found that insurance type (private, public, or none) contributed to delay in treatment initiation regardless of the treatment modality, and that the patient’s language and institution of diagnosis also influenced time to treatment.

In a separate scientific poster presented at SGO 2024, Dr. Castellano and colleagues reported that, among women with newly diagnosed endometrial cancer, the median time to treatment was 7 days longer for both Hispanic and Black women, compared with non-Hispanic White women. In addition, Black women had a 7-day longer time to receiving their first therapy for advanced disease. All of these differences were statistically significant.

Dr. Castellano told this news organization that the time-to-treatment disparities in the endometrial cancer study were determined by diagnostic codes and the timing of insurance claims.

Reasons for the disparities may include more limited access to care and structural and systemic biases in the healthcare systems where the majority of Black and Hispanic patients live, she said.

Insurance Database

In the new study on cervical cancer, Dr. Castellano and her team defined cervical cancer burden as prevalent cervical cancer diagnosis per 100,000 eligible women enrolled in a commercial insurance plan, Medicaid, or Medicare Advantage. Recurrent or metastatic cancer was determined to be the proportion of patients with cervical cancer who initiated systemic therapy.

The goals of the study were to provide a visualization of geographical distribution of cervical cancer in the US, and to quantify associations between early or advanced cancers with screening rates, poverty level, race/ethnicity, and access to brachytherapy.

The administrative claims database queried for the study included information on 75,521 women (median age 53) with a first diagnosis of cervical cancer from 2015 through 2022, and 14,033 women with recurrent or metastatic malignancies (median age 59 years).

Distribution of cases was higher in the South compared with in other US regions (37% vs approximately 20% for other regions).

Looking at the association between screening rates and disease burden from 2017 through 2022, the Geo-Analyzer showed that higher screening rates were significantly associated with decreased burden of new cases only in the South, whereas higher screening rates were associated with lower recurrent/metastatic disease burden in the Midwest and South, but a higher disease burden in the West.

In all regions, there was a significant association between decreased early cancer burden in areas with high percentages of women of Asian heritage, and significantly increased burden in areas with large populations of women of Hispanic origin.

The only significant association of race/ethnicity with recurrent/metastatic burden was a decrease in the Midwest in populations with large Asian populations.

An analysis of the how poverty levels affected screening and disease burden showed that in areas with a high percentage of low-income households there were significant associations with decreased cervical cancer screening and higher burden of newly diagnosed cases.

Poverty levels were significantly associated with recurrent/metastatic cancers only in the South.

The investigators also found that the presence of one or more brachytherapy centers within a ZIP-3 region (that is, a large geographic area designated by the first 3 digits of ZIP codes rather than 5-digit city codes) was associated with a 2.7% reduction in recurrent or metastatic cervical cancer burden (P less than .001).

Demographic Marker?

Reasons for disparities are complex and may involve a combination of inadequate health literacy and social and economic circumstances, said Cesar Castro, MD, commenting on the new cervical cancer study.

He noted in an interview that “the concept that a single Pap smear is often insufficient to capture precancerous changes, and hence the need for serial testing every 3 years, can be lost on individuals who also have competing challenges securing paychecks and/or dependent care. Historical barriers such as perceptions of the underlying cause of cervical cancer, the HPV virus, being a sexually transmitted disease and hence a taboo subject, also underpin decision-making. These sentiments have also fueled resistance towards HPV vaccination in young girls and boys.”

Dr. Castro, who is Program Director for Gynecologic Oncology at the Mass General Cancer Center in Boston, pointed out that treatments for cervical cancer often involve surgery or a combination of chemotherapy and radiation, and that side effects from these interventions may be especially disruptive to the lives of women who are breadwinners or caregivers for their families.

“These are the shackles that poverty places on many Black and Hispanic women notably in under-resourced regions domestically and globally,” he said.

The study was supported by Seagen and Genmab. Dr. Castellano disclosed consulting fees from GSK and Nykode and grant support from BMS. Dr. Castro reported no relevant conflicts of interest and was not involved in either of the studies presented at the meeting.

Disparities and geographical variations in cervical cancer outcomes appear to be related to social determinants of health, including socioeconomic status, race or ethnicity, and proximity to facilities skilled at early-stage diagnosis and treatment.

These findings come from analyses of insurance data gathered via the Cervical Cancer Geo-Analyzer tool, a publicly available online instrument designed to provide visual representation of recurrent or metastatic cervical cancer burden across metropolitan statistical areas in the United States over multiple years.

[Reporting the findings of] “this study is the first step to optimize healthcare resources allocations, advocate for policy changes that will minimize access barriers, and tailor education for modern treatment options to help reduce and improve outcomes for cervical cancer in US patients,” said Tara Castellano, MD, an author and presenter of this new research, at the Society of Gynecologic Oncology’s Annual Meeting on Women’s Cancer, held in San Diego.

Seeing Cancer Cases

Dr. Castellano and colleagues previously reported that the Geo-Analyzer tool effectively provides quantified evidence of cervical cancer disease burden and graphic representation of geographical variations across the United States for both incident and recurrent/metastatic cervical cancer.

In the current analysis, Dr. Castellano, of Louisiana State University School of Medicine in New Orleans, discussed potential factors related to cervical cancer incidence and geographic variations.

The study builds on previous studies that have shown that Black and Hispanic women have longer time to treatment and worse cervical cancer outcomes than White women.

For example, in a study published in the International Journal of Gynecologic Cancer, Marilyn Huang, MD, and colleagues from the University of Miami Miller School of Medicine, Miami, Florida, and other centers in Miami looked at time to treatment in a diverse population of 274 women starting therapy for cervical cancer.

They found that insurance type (private, public, or none) contributed to delay in treatment initiation regardless of the treatment modality, and that the patient’s language and institution of diagnosis also influenced time to treatment.

In a separate scientific poster presented at SGO 2024, Dr. Castellano and colleagues reported that, among women with newly diagnosed endometrial cancer, the median time to treatment was 7 days longer for both Hispanic and Black women, compared with non-Hispanic White women. In addition, Black women had a 7-day longer time to receiving their first therapy for advanced disease. All of these differences were statistically significant.

Dr. Castellano told this news organization that the time-to-treatment disparities in the endometrial cancer study were determined by diagnostic codes and the timing of insurance claims.

Reasons for the disparities may include more limited access to care and structural and systemic biases in the healthcare systems where the majority of Black and Hispanic patients live, she said.

Insurance Database

In the new study on cervical cancer, Dr. Castellano and her team defined cervical cancer burden as prevalent cervical cancer diagnosis per 100,000 eligible women enrolled in a commercial insurance plan, Medicaid, or Medicare Advantage. Recurrent or metastatic cancer was determined to be the proportion of patients with cervical cancer who initiated systemic therapy.

The goals of the study were to provide a visualization of geographical distribution of cervical cancer in the US, and to quantify associations between early or advanced cancers with screening rates, poverty level, race/ethnicity, and access to brachytherapy.

The administrative claims database queried for the study included information on 75,521 women (median age 53) with a first diagnosis of cervical cancer from 2015 through 2022, and 14,033 women with recurrent or metastatic malignancies (median age 59 years).

Distribution of cases was higher in the South compared with in other US regions (37% vs approximately 20% for other regions).

Looking at the association between screening rates and disease burden from 2017 through 2022, the Geo-Analyzer showed that higher screening rates were significantly associated with decreased burden of new cases only in the South, whereas higher screening rates were associated with lower recurrent/metastatic disease burden in the Midwest and South, but a higher disease burden in the West.

In all regions, there was a significant association between decreased early cancer burden in areas with high percentages of women of Asian heritage, and significantly increased burden in areas with large populations of women of Hispanic origin.

The only significant association of race/ethnicity with recurrent/metastatic burden was a decrease in the Midwest in populations with large Asian populations.

An analysis of the how poverty levels affected screening and disease burden showed that in areas with a high percentage of low-income households there were significant associations with decreased cervical cancer screening and higher burden of newly diagnosed cases.

Poverty levels were significantly associated with recurrent/metastatic cancers only in the South.

The investigators also found that the presence of one or more brachytherapy centers within a ZIP-3 region (that is, a large geographic area designated by the first 3 digits of ZIP codes rather than 5-digit city codes) was associated with a 2.7% reduction in recurrent or metastatic cervical cancer burden (P less than .001).

Demographic Marker?

Reasons for disparities are complex and may involve a combination of inadequate health literacy and social and economic circumstances, said Cesar Castro, MD, commenting on the new cervical cancer study.

He noted in an interview that “the concept that a single Pap smear is often insufficient to capture precancerous changes, and hence the need for serial testing every 3 years, can be lost on individuals who also have competing challenges securing paychecks and/or dependent care. Historical barriers such as perceptions of the underlying cause of cervical cancer, the HPV virus, being a sexually transmitted disease and hence a taboo subject, also underpin decision-making. These sentiments have also fueled resistance towards HPV vaccination in young girls and boys.”

Dr. Castro, who is Program Director for Gynecologic Oncology at the Mass General Cancer Center in Boston, pointed out that treatments for cervical cancer often involve surgery or a combination of chemotherapy and radiation, and that side effects from these interventions may be especially disruptive to the lives of women who are breadwinners or caregivers for their families.

“These are the shackles that poverty places on many Black and Hispanic women notably in under-resourced regions domestically and globally,” he said.

The study was supported by Seagen and Genmab. Dr. Castellano disclosed consulting fees from GSK and Nykode and grant support from BMS. Dr. Castro reported no relevant conflicts of interest and was not involved in either of the studies presented at the meeting.

Teen pregnancy is associated with a higher risk for premature mortality, both among those who carry the pregnancies to term and those who miscarry, according to a new study.

Among 2.2 million female teenagers in Ontario, Canada, the risk for premature death by age 31 years was 1.5 times higher among those who had one teen pregnancy and 2.1 times higher among those with two or more teen pregnancies.

“No person should die during childhood or early adulthood. Such deaths, unexpected and tragic, are often from preventable causes, including intentional injury,” lead author Joel Ray, MD, an obstetric medicine specialist and epidemiologist at St. Michael’s Hospital in Toronto, told this news organization. 

“Women who experience teen pregnancy appear more vulnerable, often having experienced a history of adverse experiences in childhood, including abuse and economic challenges,” he said.

The study was published online in JAMA Network Open.
 

Analyzing Pregnancy Associations

The investigators conducted a population-based cohort study of all girls who were alive at age 12 years from April 1991 to March 2021 in Ontario. They evaluated the risk for all-cause mortality from age 12 years onward in association with the number of teen pregnancies between ages 12 and 19 years and the age at first pregnancy. The investigators adjusted the hazard ratios for year of birth, comorbidities at ages 9-11 years, area-level education, income level, and rural status.

Among more than 2.2 million teens, 163,124 (7.3%) had a pregnancy at a median age of 18 years, including 121,276 (74.3%) who had one pregnancy and 41,848 (25.6%) who had two or more. These teens were more likely to live in the lowest neighborhood income quintile and in an area with a lower rate of high school completion. They also had a higher prevalence of self-harm history between ages 12 and 19 years but not a higher prevalence of physical or mental comorbidities.

Among all teens who had a pregnancy, 60,037 (36.8%) ended in a birth, including 59,485 (99.1%) live births. A further 106,135 (65.1%) ended in induced abortion, and 17,945 (11%) ended in miscarriage or ectopic pregnancy.

Overall, there were 6030 premature deaths among those without a teen pregnancy, or 1.9 per 10,000 person-years. There were 701 deaths among those with one teen pregnancy (4.1 per 10,000 person-years) and 345 deaths among those with two or more teen pregnancies (6.1 per 10,000 person-years).

The adjusted hazard ratios (AHRs) for mortality were 1.51 for those with one pregnancy and 2.14 for those with two or more pregnancies. Compared with no teen pregnancy, the AHRs for premature death were 1.41 if the first teen pregnancy ended in an induced abortion and 2.10 if it ended in a miscarriage or birth.

Comparing those with a teen pregnancy and those without, the AHRs for premature death were 1.25 from noninjury, 2.06 from unintentional injury, and 2.02 from intentional injury. Among patients with teen pregnancy, noninjury-related premature mortality was more common, at 2.0 per 10,000 person-years, than unintentional and intentional injuries, at 1.0 per 10,000 person-years and 0.4 per 10,000 person-years, respectively.

A teen pregnancy before age 16 years entailed the highest associated risk for premature death, with an AHR of 2.00.
 

Next Research Steps

“We were not surprised by our findings, but it was new to us to see that the risk for premature death was higher for women who had an induced abortion in their teen years,” said Dr. Ray. “It was even higher in those whose pregnancy ended in a birth or miscarriage.”

The investigators plan to evaluate whether the future risk for premature death after teen pregnancy differs by the type of induced abortion, such as procedural or pharmaceutical, or by whether the pregnancy ended in a live birth, stillbirth, or miscarriage. Among those with a live birth, the researchers will also analyze the risk for premature death in relation to whether the newborn was taken into custody by child protection services in Canada.

Other factors associated with teen pregnancy and overall mortality, particularly adverse childhood experiences, may point to the reasons for premature mortality and should be studied further, the authors wrote. Structural and systems-related factors should be considered as well.
 

Stigmatization and Isolation 

“Some teens choose to become pregnant, but most teen pregnancies are unintended, which exposes shortcomings in the systems that exist to educate, guide, and support young people,” said Elizabeth Cook, a research scientist at Child Trends in Rockville, Maryland.

Dr. Cook, who wasn’t involved with this study, wrote an accompanying editorial in JAMA Network Open. She conducts studies of sexual and reproductive health for Child Trends.

“Teens who become pregnant often experience stigmatization and isolation that can make it more difficult to thrive in adulthood, especially if they lack the necessary support to navigate such a significant decision,” she said. “Fortunately, the systems that youths encounter, such as healthcare, education, and child welfare, are taking on a larger role in prevention efforts than they have in the past.”

These systems are shifting the burden of unintended teen pregnancy from the teens themselves and their behaviors to the health and education systems, Dr. Cook noted, though more work is needed around local policies and lack of access to healthcare facilities. 

“Teen pregnancy may offer an opportunity to intervene in the lives of people at higher risk for premature death, but knowing how best to offer support requires an understanding of the context of their lives,” she said. “As a starting point, we must celebrate and listen to all pregnant young people so they can tell us what they need to live long, fulfilled lives.”

The study was funded by grants from the PSI Foundation and the Canadian Institutes of Health Research, as well as ICES, which is funded by the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Ray and Dr. Cook reported no relevant disclosures. 

A version of this article first appeared on Medscape.com.

Teen pregnancy is associated with a higher risk for premature mortality, both among those who carry the pregnancies to term and those who miscarry, according to a new study.

Among 2.2 million female teenagers in Ontario, Canada, the risk for premature death by age 31 years was 1.5 times higher among those who had one teen pregnancy and 2.1 times higher among those with two or more teen pregnancies.

“No person should die during childhood or early adulthood. Such deaths, unexpected and tragic, are often from preventable causes, including intentional injury,” lead author Joel Ray, MD, an obstetric medicine specialist and epidemiologist at St. Michael’s Hospital in Toronto, told this news organization. 

“Women who experience teen pregnancy appear more vulnerable, often having experienced a history of adverse experiences in childhood, including abuse and economic challenges,” he said.

The study was published online in JAMA Network Open.
 

Analyzing Pregnancy Associations

The investigators conducted a population-based cohort study of all girls who were alive at age 12 years from April 1991 to March 2021 in Ontario. They evaluated the risk for all-cause mortality from age 12 years onward in association with the number of teen pregnancies between ages 12 and 19 years and the age at first pregnancy. The investigators adjusted the hazard ratios for year of birth, comorbidities at ages 9-11 years, area-level education, income level, and rural status.

Among more than 2.2 million teens, 163,124 (7.3%) had a pregnancy at a median age of 18 years, including 121,276 (74.3%) who had one pregnancy and 41,848 (25.6%) who had two or more. These teens were more likely to live in the lowest neighborhood income quintile and in an area with a lower rate of high school completion. They also had a higher prevalence of self-harm history between ages 12 and 19 years but not a higher prevalence of physical or mental comorbidities.

Among all teens who had a pregnancy, 60,037 (36.8%) ended in a birth, including 59,485 (99.1%) live births. A further 106,135 (65.1%) ended in induced abortion, and 17,945 (11%) ended in miscarriage or ectopic pregnancy.

Overall, there were 6030 premature deaths among those without a teen pregnancy, or 1.9 per 10,000 person-years. There were 701 deaths among those with one teen pregnancy (4.1 per 10,000 person-years) and 345 deaths among those with two or more teen pregnancies (6.1 per 10,000 person-years).

The adjusted hazard ratios (AHRs) for mortality were 1.51 for those with one pregnancy and 2.14 for those with two or more pregnancies. Compared with no teen pregnancy, the AHRs for premature death were 1.41 if the first teen pregnancy ended in an induced abortion and 2.10 if it ended in a miscarriage or birth.

Comparing those with a teen pregnancy and those without, the AHRs for premature death were 1.25 from noninjury, 2.06 from unintentional injury, and 2.02 from intentional injury. Among patients with teen pregnancy, noninjury-related premature mortality was more common, at 2.0 per 10,000 person-years, than unintentional and intentional injuries, at 1.0 per 10,000 person-years and 0.4 per 10,000 person-years, respectively.

A teen pregnancy before age 16 years entailed the highest associated risk for premature death, with an AHR of 2.00.
 

Next Research Steps

“We were not surprised by our findings, but it was new to us to see that the risk for premature death was higher for women who had an induced abortion in their teen years,” said Dr. Ray. “It was even higher in those whose pregnancy ended in a birth or miscarriage.”

The investigators plan to evaluate whether the future risk for premature death after teen pregnancy differs by the type of induced abortion, such as procedural or pharmaceutical, or by whether the pregnancy ended in a live birth, stillbirth, or miscarriage. Among those with a live birth, the researchers will also analyze the risk for premature death in relation to whether the newborn was taken into custody by child protection services in Canada.

Other factors associated with teen pregnancy and overall mortality, particularly adverse childhood experiences, may point to the reasons for premature mortality and should be studied further, the authors wrote. Structural and systems-related factors should be considered as well.
 

Stigmatization and Isolation 

“Some teens choose to become pregnant, but most teen pregnancies are unintended, which exposes shortcomings in the systems that exist to educate, guide, and support young people,” said Elizabeth Cook, a research scientist at Child Trends in Rockville, Maryland.

Dr. Cook, who wasn’t involved with this study, wrote an accompanying editorial in JAMA Network Open. She conducts studies of sexual and reproductive health for Child Trends.

“Teens who become pregnant often experience stigmatization and isolation that can make it more difficult to thrive in adulthood, especially if they lack the necessary support to navigate such a significant decision,” she said. “Fortunately, the systems that youths encounter, such as healthcare, education, and child welfare, are taking on a larger role in prevention efforts than they have in the past.”

These systems are shifting the burden of unintended teen pregnancy from the teens themselves and their behaviors to the health and education systems, Dr. Cook noted, though more work is needed around local policies and lack of access to healthcare facilities. 

“Teen pregnancy may offer an opportunity to intervene in the lives of people at higher risk for premature death, but knowing how best to offer support requires an understanding of the context of their lives,” she said. “As a starting point, we must celebrate and listen to all pregnant young people so they can tell us what they need to live long, fulfilled lives.”

The study was funded by grants from the PSI Foundation and the Canadian Institutes of Health Research, as well as ICES, which is funded by the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Ray and Dr. Cook reported no relevant disclosures. 

A version of this article first appeared on Medscape.com.

Teen pregnancy is associated with a higher risk for premature mortality, both among those who carry the pregnancies to term and those who miscarry, according to a new study.

Among 2.2 million female teenagers in Ontario, Canada, the risk for premature death by age 31 years was 1.5 times higher among those who had one teen pregnancy and 2.1 times higher among those with two or more teen pregnancies.

“No person should die during childhood or early adulthood. Such deaths, unexpected and tragic, are often from preventable causes, including intentional injury,” lead author Joel Ray, MD, an obstetric medicine specialist and epidemiologist at St. Michael’s Hospital in Toronto, told this news organization. 

“Women who experience teen pregnancy appear more vulnerable, often having experienced a history of adverse experiences in childhood, including abuse and economic challenges,” he said.

The study was published online in JAMA Network Open.
 

Analyzing Pregnancy Associations

The investigators conducted a population-based cohort study of all girls who were alive at age 12 years from April 1991 to March 2021 in Ontario. They evaluated the risk for all-cause mortality from age 12 years onward in association with the number of teen pregnancies between ages 12 and 19 years and the age at first pregnancy. The investigators adjusted the hazard ratios for year of birth, comorbidities at ages 9-11 years, area-level education, income level, and rural status.

Among more than 2.2 million teens, 163,124 (7.3%) had a pregnancy at a median age of 18 years, including 121,276 (74.3%) who had one pregnancy and 41,848 (25.6%) who had two or more. These teens were more likely to live in the lowest neighborhood income quintile and in an area with a lower rate of high school completion. They also had a higher prevalence of self-harm history between ages 12 and 19 years but not a higher prevalence of physical or mental comorbidities.

Among all teens who had a pregnancy, 60,037 (36.8%) ended in a birth, including 59,485 (99.1%) live births. A further 106,135 (65.1%) ended in induced abortion, and 17,945 (11%) ended in miscarriage or ectopic pregnancy.

Overall, there were 6030 premature deaths among those without a teen pregnancy, or 1.9 per 10,000 person-years. There were 701 deaths among those with one teen pregnancy (4.1 per 10,000 person-years) and 345 deaths among those with two or more teen pregnancies (6.1 per 10,000 person-years).

The adjusted hazard ratios (AHRs) for mortality were 1.51 for those with one pregnancy and 2.14 for those with two or more pregnancies. Compared with no teen pregnancy, the AHRs for premature death were 1.41 if the first teen pregnancy ended in an induced abortion and 2.10 if it ended in a miscarriage or birth.

Comparing those with a teen pregnancy and those without, the AHRs for premature death were 1.25 from noninjury, 2.06 from unintentional injury, and 2.02 from intentional injury. Among patients with teen pregnancy, noninjury-related premature mortality was more common, at 2.0 per 10,000 person-years, than unintentional and intentional injuries, at 1.0 per 10,000 person-years and 0.4 per 10,000 person-years, respectively.

A teen pregnancy before age 16 years entailed the highest associated risk for premature death, with an AHR of 2.00.
 

Next Research Steps

“We were not surprised by our findings, but it was new to us to see that the risk for premature death was higher for women who had an induced abortion in their teen years,” said Dr. Ray. “It was even higher in those whose pregnancy ended in a birth or miscarriage.”

The investigators plan to evaluate whether the future risk for premature death after teen pregnancy differs by the type of induced abortion, such as procedural or pharmaceutical, or by whether the pregnancy ended in a live birth, stillbirth, or miscarriage. Among those with a live birth, the researchers will also analyze the risk for premature death in relation to whether the newborn was taken into custody by child protection services in Canada.

Other factors associated with teen pregnancy and overall mortality, particularly adverse childhood experiences, may point to the reasons for premature mortality and should be studied further, the authors wrote. Structural and systems-related factors should be considered as well.
 

Stigmatization and Isolation 

“Some teens choose to become pregnant, but most teen pregnancies are unintended, which exposes shortcomings in the systems that exist to educate, guide, and support young people,” said Elizabeth Cook, a research scientist at Child Trends in Rockville, Maryland.

Dr. Cook, who wasn’t involved with this study, wrote an accompanying editorial in JAMA Network Open. She conducts studies of sexual and reproductive health for Child Trends.

“Teens who become pregnant often experience stigmatization and isolation that can make it more difficult to thrive in adulthood, especially if they lack the necessary support to navigate such a significant decision,” she said. “Fortunately, the systems that youths encounter, such as healthcare, education, and child welfare, are taking on a larger role in prevention efforts than they have in the past.”

These systems are shifting the burden of unintended teen pregnancy from the teens themselves and their behaviors to the health and education systems, Dr. Cook noted, though more work is needed around local policies and lack of access to healthcare facilities. 

“Teen pregnancy may offer an opportunity to intervene in the lives of people at higher risk for premature death, but knowing how best to offer support requires an understanding of the context of their lives,” she said. “As a starting point, we must celebrate and listen to all pregnant young people so they can tell us what they need to live long, fulfilled lives.”

The study was funded by grants from the PSI Foundation and the Canadian Institutes of Health Research, as well as ICES, which is funded by the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Ray and Dr. Cook reported no relevant disclosures. 

A version of this article first appeared on Medscape.com.