What you should know about the latest change in mammography screening guidelines

When the American Cancer Society (ACS) updated its guidelines for screening mammography earlier this week,¹ the effect was that of a stone being tossed into a tranquil pond, generating ripples in all directions.

The new guidelines focus on women at average risk for breast cancer (TABLE 1) and were updated for the first time since 2003, based on new evidence, a new emphasis on eliminating as many screening harms as possible, and a goal of “supporting the interplay among values, preferences, informed decision making, and recommendations.”¹ Earlier ACS guidelines recommended annual screening starting at age 40.
 

The new guidelines are graded according to the strength of the rec ommendation as being either “strong” or “qualified.” The ACS defines a “strong” recommendation as one that most individuals should follow. “Adherence to this recommendation according to the guideline could be used as a quality criterion or performance indicator,” the guidelines note.¹

A “qualified” recommendation indicates that “Clinicians should acknowledge that different choices will be appropriate for different patients and that clinicians must help each patient arrive at a management decision consistent with her or his values and preferences.”¹

The recommendations are:

ACOG weighs in
Shortly after publication of the new ACS guidelines, the American College of Obstetricians and Gynecologists (ACOG) issued a formal statement in response²:

Response of the USPSTF
The US Preventive Services Task Force (USPSTF) also issued a statement in response to the new ACS guidelines:

The USPSTF currently recommends biennial screening beginning at age 50.

A leader in breast health cites pros and cons of ACS recommendations
Mark Pearlman, MD, professor of obstetrics and gynecology at the University of Michigan health system, is a nationally recognized expert on breast cancer screening. He sits on the National Comprehensive Cancer Network (NCCN) breast cancer screening and diagnosis group, helped author ACOG guidelines on mammography screening, and serves as a Contributing Editor to OBG Management.

“I believe the overall ACS mammography benefit evidence synthesis is reasonable and is in keeping with both NCCN and ACOG’s current recommendations. NCCN and ACOG mammography screening recommendations have both valued lives saved more highly than the ‘harms’ such as recalls and needle biopsies,” Dr. Pearlman says.

“If one combines ACS ‘strong’ and ‘qualified’ recommendations, ACS recommendations are similar to current ACOG and NCCN recommendations for mammography,” he adds.

Dr. Pearlman finds 7 areas of agreement between NCCN/ACOG and ACS recommendations, using both strong and qualified recommendations:

Where the ACS and ACOG/NCCN disagree is over the issue of the physical exam (abandoning CBE in average-risk women).

In regard to this last item, Dr. Pearlman says, “The ACS made a qualified recommendation against clinical breast exam. There is no high-level data to support such a marked change in practice. For example, when recommendations against breast self-examinations (BSE) were made, there were randomized controlled trials (RCTs) showing a lack of benefit and significant harms with BSE. With RCT-level data, it made sense to make a recommendation against the long-taught practice of SBE in average-risk women. That was not the case here. In fact, there are small amounts of data showing benefits of clinical breast exam.”

“One of my biggest concerns is not just the recommendation against CBE,” says Dr. Pearlman, “but that this may lead many women to interpret [this statement] as if they do not need to see their health care provider anymore. As you may recall, the American College of Physicians (ACP) recommended against annual pelvic examinations in asymptomatic patients. The ACS recommendation statement—taken together with the ACP statement—basically suggests that average-risk women don’t ever need to see a provider for a pelvic or breast examination except every 5 years for a Pap smear. That thinking does not recognize the importance of the clinical encounter (not just the CBE or pelvic exam), which is the opportunity to perform risk assessment and provide risk-reduction recommendations and healthy lifestyle recommendations.”

Radiologists resist new recommendations
Although the American College of Radiology (ACR) and the Society of Breast Imaging (SBI) agree with the ACS that mammography screening saves lives and should be available to women aged 40 and older, the 2 imaging organizations continue to recommend that annual screening begin at age 40. Their rationale: The latest ACS breast cancer screening guidelines, and earlier data used by the USPSTF to create its recommendations, both note that starting annual mammography at age 40 “saves the most lives.”

Where the organizations differ from the ACR is summed up by a formal statement on the ACR Web site: “The ACR and SBI strongly encourage women to obtain the maximum lifesaving benefits from mammography by continuing to get annual screening.”⁴

When OBG Management touched base with radiologist Barbara Monsees, MD, professor of radiology and Evens Professor of Women’s Health at Washington University Medical Center in St. Louis, Missouri, she expressed dismay at early news reports on the ACS guidelines.

“I’m dismayed that the headlines don’t seem to correlate with what the ACS actually recommended. The ACS did not state that women should wait until age 45 to begin screening. I believe the ACS was going for a more nuanced approach, but since that’s a bit complicated, I think that reporters have misconstrued what was intended,” Dr. Monsees says.

“The ACS guideline says that women between 40 and 44 years should have the opportunity to begin annual screening,” she says, noting that this recommendation was graded as “qualified.”

“The ACS states that a qualified recommendation indicates that ‘there is clear evidence of benefit of screening, but less certainty about the balance of benefits and harms, or about patients’ values and preferences, which could lead to different decisions about screening.’” The guideline also articulates the view “that the meaning of a qualified recommendation for patients is that the ‘majority of individuals in this situation would want the suggested course of action, but many would not.’ Therefore, I find it mind-boggling that this has been interpreted to mean that women should not begin screening until age 45.”¹

“It is my opinion that it is clear that if women want to achieve the most lifesaving benefit from screening, they should adhere to a schedule of yearly mammograms beginning at age 40,” says Dr. Monsees. However, she also agrees with the ACS notation that clinicians should acknowledge that “different choices will be appropriate for different patients and that clinicians must help each patient arrive at a management decision consistent with her values and preferences.”¹

The word from an expert ObGyn
“By changing its guidance to begin screening at age 45 instead of 40, and in recommending biennial rather than annual screens in women 55 years of age and older, the updated ACS guidance will reduce harms (overdiagnosis and unnecessary additional imaging and biopsies) and moves closer to USPSTF guidance,” says Andrew M. Kaunitz, MD. He is University of Florida Research Foundation Professor and Associate Chairman, Department of Obstetrics and Gynecology, at the University of Florida College of Medicine–Jacksonville. He also serves on the OBG Management Board of Editors.

“As one editorialist points out, the ACS recommendation that women begin screening at age 45 years is based on observational comparisons of screened and unscreened cohorts—a type of analysis which the USPSTF does not consider due to concerns regarding bias,” notes Dr. Kaunitz.⁵

“The ACS recommendation for annual screening in women aged 45 to 54 is largely based on the findings of a report showing that, for premenopausal (but not postmenopausal) women, tumor stage was higher and size larger for screen-detected lesions among women undergoing biennial screens."⁶

As for the recommendation against screening CBE, Dr. Kaunitz considers that “a dramatic change from prior guidance. It is based on the absence of data finding benefits with CBE (alone or with screening mammography). Furthermore, the updated ACS guidance does not change its 2003 guidance, which does not support routine performance of or instruction regarding SBE.”

“These updated ACS guidelines should result in more women starting screening mammograms later in life, and they endorse biennial screening for many women, meaning that patients following ACS guidance will have fewer lifetime screens than with earlier recommendations,” says Dr. Kaunitz.

“Another plus is that performing fewer breast examinations during well-woman visits will allow us more time to assess family history and other risk factors for breast cancer, and to discuss screening recommendations.”

The bottom line
What is one to make of the many viewpoints on screening? For now, it probably is best to adhere to either the new ACS guidelines or current ACOG guidelines (TABLE 2), says OBG Management Editor in Chief Robert L. Barbieri, MD. He is chief of the Department of Obstetrics and Gynecology at Brigham and Women’s Hospital in Boston, and Kate Macy Ladd Professor of Obstetrics, Gynecology, and Reproductive Biology at Harvard Medical School.
 

ACOG recommends screening mammography every year for women starting at age 40. ACOG also states that “breast self-awareness has the potential to detect palpable breast cancer and can be recommended”; it also recommends CBE every year for women aged 19 or older.

These recommendations may change early next year, after ACOG convenes a consensus conference on the subject. The aim: “To develop a consistent set of uniform guidelines for breast cancer screening that can be implemented nationwide. Major organizations and providers of women’s health care, including ACS, will gather to evaluate and interpret the data in greater detail.”²

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

When the American Cancer Society (ACS) updated its guidelines for screening mammography earlier this week,¹ the effect was that of a stone being tossed into a tranquil pond, generating ripples in all directions.

The new guidelines focus on women at average risk for breast cancer (TABLE 1) and were updated for the first time since 2003, based on new evidence, a new emphasis on eliminating as many screening harms as possible, and a goal of “supporting the interplay among values, preferences, informed decision making, and recommendations.”¹ Earlier ACS guidelines recommended annual screening starting at age 40.
 

The new guidelines are graded according to the strength of the rec ommendation as being either “strong” or “qualified.” The ACS defines a “strong” recommendation as one that most individuals should follow. “Adherence to this recommendation according to the guideline could be used as a quality criterion or performance indicator,” the guidelines note.¹

A “qualified” recommendation indicates that “Clinicians should acknowledge that different choices will be appropriate for different patients and that clinicians must help each patient arrive at a management decision consistent with her or his values and preferences.”¹

The recommendations are:

ACOG weighs in
Shortly after publication of the new ACS guidelines, the American College of Obstetricians and Gynecologists (ACOG) issued a formal statement in response²:

Response of the USPSTF
The US Preventive Services Task Force (USPSTF) also issued a statement in response to the new ACS guidelines:

The USPSTF currently recommends biennial screening beginning at age 50.

A leader in breast health cites pros and cons of ACS recommendations
Mark Pearlman, MD, professor of obstetrics and gynecology at the University of Michigan health system, is a nationally recognized expert on breast cancer screening. He sits on the National Comprehensive Cancer Network (NCCN) breast cancer screening and diagnosis group, helped author ACOG guidelines on mammography screening, and serves as a Contributing Editor to OBG Management.

“I believe the overall ACS mammography benefit evidence synthesis is reasonable and is in keeping with both NCCN and ACOG’s current recommendations. NCCN and ACOG mammography screening recommendations have both valued lives saved more highly than the ‘harms’ such as recalls and needle biopsies,” Dr. Pearlman says.

“If one combines ACS ‘strong’ and ‘qualified’ recommendations, ACS recommendations are similar to current ACOG and NCCN recommendations for mammography,” he adds.

Dr. Pearlman finds 7 areas of agreement between NCCN/ACOG and ACS recommendations, using both strong and qualified recommendations:

Where the ACS and ACOG/NCCN disagree is over the issue of the physical exam (abandoning CBE in average-risk women).

In regard to this last item, Dr. Pearlman says, “The ACS made a qualified recommendation against clinical breast exam. There is no high-level data to support such a marked change in practice. For example, when recommendations against breast self-examinations (BSE) were made, there were randomized controlled trials (RCTs) showing a lack of benefit and significant harms with BSE. With RCT-level data, it made sense to make a recommendation against the long-taught practice of SBE in average-risk women. That was not the case here. In fact, there are small amounts of data showing benefits of clinical breast exam.”

“One of my biggest concerns is not just the recommendation against CBE,” says Dr. Pearlman, “but that this may lead many women to interpret [this statement] as if they do not need to see their health care provider anymore. As you may recall, the American College of Physicians (ACP) recommended against annual pelvic examinations in asymptomatic patients. The ACS recommendation statement—taken together with the ACP statement—basically suggests that average-risk women don’t ever need to see a provider for a pelvic or breast examination except every 5 years for a Pap smear. That thinking does not recognize the importance of the clinical encounter (not just the CBE or pelvic exam), which is the opportunity to perform risk assessment and provide risk-reduction recommendations and healthy lifestyle recommendations.”

Radiologists resist new recommendations
Although the American College of Radiology (ACR) and the Society of Breast Imaging (SBI) agree with the ACS that mammography screening saves lives and should be available to women aged 40 and older, the 2 imaging organizations continue to recommend that annual screening begin at age 40. Their rationale: The latest ACS breast cancer screening guidelines, and earlier data used by the USPSTF to create its recommendations, both note that starting annual mammography at age 40 “saves the most lives.”

Where the organizations differ from the ACR is summed up by a formal statement on the ACR Web site: “The ACR and SBI strongly encourage women to obtain the maximum lifesaving benefits from mammography by continuing to get annual screening.”⁴

When OBG Management touched base with radiologist Barbara Monsees, MD, professor of radiology and Evens Professor of Women’s Health at Washington University Medical Center in St. Louis, Missouri, she expressed dismay at early news reports on the ACS guidelines.

“I’m dismayed that the headlines don’t seem to correlate with what the ACS actually recommended. The ACS did not state that women should wait until age 45 to begin screening. I believe the ACS was going for a more nuanced approach, but since that’s a bit complicated, I think that reporters have misconstrued what was intended,” Dr. Monsees says.

“The ACS guideline says that women between 40 and 44 years should have the opportunity to begin annual screening,” she says, noting that this recommendation was graded as “qualified.”

“The ACS states that a qualified recommendation indicates that ‘there is clear evidence of benefit of screening, but less certainty about the balance of benefits and harms, or about patients’ values and preferences, which could lead to different decisions about screening.’” The guideline also articulates the view “that the meaning of a qualified recommendation for patients is that the ‘majority of individuals in this situation would want the suggested course of action, but many would not.’ Therefore, I find it mind-boggling that this has been interpreted to mean that women should not begin screening until age 45.”¹

“It is my opinion that it is clear that if women want to achieve the most lifesaving benefit from screening, they should adhere to a schedule of yearly mammograms beginning at age 40,” says Dr. Monsees. However, she also agrees with the ACS notation that clinicians should acknowledge that “different choices will be appropriate for different patients and that clinicians must help each patient arrive at a management decision consistent with her values and preferences.”¹

The word from an expert ObGyn
“By changing its guidance to begin screening at age 45 instead of 40, and in recommending biennial rather than annual screens in women 55 years of age and older, the updated ACS guidance will reduce harms (overdiagnosis and unnecessary additional imaging and biopsies) and moves closer to USPSTF guidance,” says Andrew M. Kaunitz, MD. He is University of Florida Research Foundation Professor and Associate Chairman, Department of Obstetrics and Gynecology, at the University of Florida College of Medicine–Jacksonville. He also serves on the OBG Management Board of Editors.

“As one editorialist points out, the ACS recommendation that women begin screening at age 45 years is based on observational comparisons of screened and unscreened cohorts—a type of analysis which the USPSTF does not consider due to concerns regarding bias,” notes Dr. Kaunitz.⁵

“The ACS recommendation for annual screening in women aged 45 to 54 is largely based on the findings of a report showing that, for premenopausal (but not postmenopausal) women, tumor stage was higher and size larger for screen-detected lesions among women undergoing biennial screens."⁶

As for the recommendation against screening CBE, Dr. Kaunitz considers that “a dramatic change from prior guidance. It is based on the absence of data finding benefits with CBE (alone or with screening mammography). Furthermore, the updated ACS guidance does not change its 2003 guidance, which does not support routine performance of or instruction regarding SBE.”

“These updated ACS guidelines should result in more women starting screening mammograms later in life, and they endorse biennial screening for many women, meaning that patients following ACS guidance will have fewer lifetime screens than with earlier recommendations,” says Dr. Kaunitz.

“Another plus is that performing fewer breast examinations during well-woman visits will allow us more time to assess family history and other risk factors for breast cancer, and to discuss screening recommendations.”

The bottom line
What is one to make of the many viewpoints on screening? For now, it probably is best to adhere to either the new ACS guidelines or current ACOG guidelines (TABLE 2), says OBG Management Editor in Chief Robert L. Barbieri, MD. He is chief of the Department of Obstetrics and Gynecology at Brigham and Women’s Hospital in Boston, and Kate Macy Ladd Professor of Obstetrics, Gynecology, and Reproductive Biology at Harvard Medical School.
 

ACOG recommends screening mammography every year for women starting at age 40. ACOG also states that “breast self-awareness has the potential to detect palpable breast cancer and can be recommended”; it also recommends CBE every year for women aged 19 or older.

These recommendations may change early next year, after ACOG convenes a consensus conference on the subject. The aim: “To develop a consistent set of uniform guidelines for breast cancer screening that can be implemented nationwide. Major organizations and providers of women’s health care, including ACS, will gather to evaluate and interpret the data in greater detail.”²

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

When the American Cancer Society (ACS) updated its guidelines for screening mammography earlier this week,¹ the effect was that of a stone being tossed into a tranquil pond, generating ripples in all directions.

The new guidelines focus on women at average risk for breast cancer (TABLE 1) and were updated for the first time since 2003, based on new evidence, a new emphasis on eliminating as many screening harms as possible, and a goal of “supporting the interplay among values, preferences, informed decision making, and recommendations.”¹ Earlier ACS guidelines recommended annual screening starting at age 40.
 

The new guidelines are graded according to the strength of the rec ommendation as being either “strong” or “qualified.” The ACS defines a “strong” recommendation as one that most individuals should follow. “Adherence to this recommendation according to the guideline could be used as a quality criterion or performance indicator,” the guidelines note.¹

A “qualified” recommendation indicates that “Clinicians should acknowledge that different choices will be appropriate for different patients and that clinicians must help each patient arrive at a management decision consistent with her or his values and preferences.”¹

The recommendations are:

ACOG weighs in
Shortly after publication of the new ACS guidelines, the American College of Obstetricians and Gynecologists (ACOG) issued a formal statement in response²:

Response of the USPSTF
The US Preventive Services Task Force (USPSTF) also issued a statement in response to the new ACS guidelines:

The USPSTF currently recommends biennial screening beginning at age 50.

A leader in breast health cites pros and cons of ACS recommendations
Mark Pearlman, MD, professor of obstetrics and gynecology at the University of Michigan health system, is a nationally recognized expert on breast cancer screening. He sits on the National Comprehensive Cancer Network (NCCN) breast cancer screening and diagnosis group, helped author ACOG guidelines on mammography screening, and serves as a Contributing Editor to OBG Management.

“I believe the overall ACS mammography benefit evidence synthesis is reasonable and is in keeping with both NCCN and ACOG’s current recommendations. NCCN and ACOG mammography screening recommendations have both valued lives saved more highly than the ‘harms’ such as recalls and needle biopsies,” Dr. Pearlman says.

“If one combines ACS ‘strong’ and ‘qualified’ recommendations, ACS recommendations are similar to current ACOG and NCCN recommendations for mammography,” he adds.

Dr. Pearlman finds 7 areas of agreement between NCCN/ACOG and ACS recommendations, using both strong and qualified recommendations:

Where the ACS and ACOG/NCCN disagree is over the issue of the physical exam (abandoning CBE in average-risk women).

In regard to this last item, Dr. Pearlman says, “The ACS made a qualified recommendation against clinical breast exam. There is no high-level data to support such a marked change in practice. For example, when recommendations against breast self-examinations (BSE) were made, there were randomized controlled trials (RCTs) showing a lack of benefit and significant harms with BSE. With RCT-level data, it made sense to make a recommendation against the long-taught practice of SBE in average-risk women. That was not the case here. In fact, there are small amounts of data showing benefits of clinical breast exam.”

“One of my biggest concerns is not just the recommendation against CBE,” says Dr. Pearlman, “but that this may lead many women to interpret [this statement] as if they do not need to see their health care provider anymore. As you may recall, the American College of Physicians (ACP) recommended against annual pelvic examinations in asymptomatic patients. The ACS recommendation statement—taken together with the ACP statement—basically suggests that average-risk women don’t ever need to see a provider for a pelvic or breast examination except every 5 years for a Pap smear. That thinking does not recognize the importance of the clinical encounter (not just the CBE or pelvic exam), which is the opportunity to perform risk assessment and provide risk-reduction recommendations and healthy lifestyle recommendations.”

Radiologists resist new recommendations
Although the American College of Radiology (ACR) and the Society of Breast Imaging (SBI) agree with the ACS that mammography screening saves lives and should be available to women aged 40 and older, the 2 imaging organizations continue to recommend that annual screening begin at age 40. Their rationale: The latest ACS breast cancer screening guidelines, and earlier data used by the USPSTF to create its recommendations, both note that starting annual mammography at age 40 “saves the most lives.”

Where the organizations differ from the ACR is summed up by a formal statement on the ACR Web site: “The ACR and SBI strongly encourage women to obtain the maximum lifesaving benefits from mammography by continuing to get annual screening.”⁴

When OBG Management touched base with radiologist Barbara Monsees, MD, professor of radiology and Evens Professor of Women’s Health at Washington University Medical Center in St. Louis, Missouri, she expressed dismay at early news reports on the ACS guidelines.

“I’m dismayed that the headlines don’t seem to correlate with what the ACS actually recommended. The ACS did not state that women should wait until age 45 to begin screening. I believe the ACS was going for a more nuanced approach, but since that’s a bit complicated, I think that reporters have misconstrued what was intended,” Dr. Monsees says.

“The ACS guideline says that women between 40 and 44 years should have the opportunity to begin annual screening,” she says, noting that this recommendation was graded as “qualified.”

“The ACS states that a qualified recommendation indicates that ‘there is clear evidence of benefit of screening, but less certainty about the balance of benefits and harms, or about patients’ values and preferences, which could lead to different decisions about screening.’” The guideline also articulates the view “that the meaning of a qualified recommendation for patients is that the ‘majority of individuals in this situation would want the suggested course of action, but many would not.’ Therefore, I find it mind-boggling that this has been interpreted to mean that women should not begin screening until age 45.”¹

“It is my opinion that it is clear that if women want to achieve the most lifesaving benefit from screening, they should adhere to a schedule of yearly mammograms beginning at age 40,” says Dr. Monsees. However, she also agrees with the ACS notation that clinicians should acknowledge that “different choices will be appropriate for different patients and that clinicians must help each patient arrive at a management decision consistent with her values and preferences.”¹

The word from an expert ObGyn
“By changing its guidance to begin screening at age 45 instead of 40, and in recommending biennial rather than annual screens in women 55 years of age and older, the updated ACS guidance will reduce harms (overdiagnosis and unnecessary additional imaging and biopsies) and moves closer to USPSTF guidance,” says Andrew M. Kaunitz, MD. He is University of Florida Research Foundation Professor and Associate Chairman, Department of Obstetrics and Gynecology, at the University of Florida College of Medicine–Jacksonville. He also serves on the OBG Management Board of Editors.

“As one editorialist points out, the ACS recommendation that women begin screening at age 45 years is based on observational comparisons of screened and unscreened cohorts—a type of analysis which the USPSTF does not consider due to concerns regarding bias,” notes Dr. Kaunitz.⁵

“The ACS recommendation for annual screening in women aged 45 to 54 is largely based on the findings of a report showing that, for premenopausal (but not postmenopausal) women, tumor stage was higher and size larger for screen-detected lesions among women undergoing biennial screens."⁶

As for the recommendation against screening CBE, Dr. Kaunitz considers that “a dramatic change from prior guidance. It is based on the absence of data finding benefits with CBE (alone or with screening mammography). Furthermore, the updated ACS guidance does not change its 2003 guidance, which does not support routine performance of or instruction regarding SBE.”

“These updated ACS guidelines should result in more women starting screening mammograms later in life, and they endorse biennial screening for many women, meaning that patients following ACS guidance will have fewer lifetime screens than with earlier recommendations,” says Dr. Kaunitz.

“Another plus is that performing fewer breast examinations during well-woman visits will allow us more time to assess family history and other risk factors for breast cancer, and to discuss screening recommendations.”

The bottom line
What is one to make of the many viewpoints on screening? For now, it probably is best to adhere to either the new ACS guidelines or current ACOG guidelines (TABLE 2), says OBG Management Editor in Chief Robert L. Barbieri, MD. He is chief of the Department of Obstetrics and Gynecology at Brigham and Women’s Hospital in Boston, and Kate Macy Ladd Professor of Obstetrics, Gynecology, and Reproductive Biology at Harvard Medical School.
 

ACOG recommends screening mammography every year for women starting at age 40. ACOG also states that “breast self-awareness has the potential to detect palpable breast cancer and can be recommended”; it also recommends CBE every year for women aged 19 or older.

These recommendations may change early next year, after ACOG convenes a consensus conference on the subject. The aim: “To develop a consistent set of uniform guidelines for breast cancer screening that can be implemented nationwide. Major organizations and providers of women’s health care, including ACS, will gather to evaluate and interpret the data in greater detail.”²

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.