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Individuals with esophageal dysmotility had significantly higher scores on measures of airway reflux symptoms, based on data from 441 patients.
Many patients with chronic respiratory diseases experience persistent symptoms despite optimal treatment, and the reason is often unclear and frustrating for clinicians and patients, Dominic L. Sykes, MD, of Hull (England) University Teaching Hospitals NHS Trust, and colleagues wrote.
Although more studies in recent years have explored the association between gastroesophageal reflux and respiratory diseases such as asthma and chronic obstructive pulmonary disease, data on a potential link between esophageal motility and respiratory disease in adults are limited, they noted.
In a study published in Respiratory Medicine, the researchers reviewed data from 441 adults with refractory respiratory symptoms who were treated at a single center between Jan. 1, 2011, and Dec. 1, 2021. Symptoms included persistent cough and breathlessness despite optimal medication. The participants underwent examination with high-resolution esophageal manometry (HROM). Airway reflux was measured using the Hull Airways Reflux Questionnaire (HARQ). The mean age of the patients was 56.5 years, and 64% were women.
Overall, the most common diagnoses were chronic cough (77%), asthma (10%), and interstitial lung disease (7%). The prevalence of esophageal dysmotility was 66%. Patients with esophageal dysmotility had significantly higher HARQ scores than those with normal motility (40.6 vs. 35.3; P < .001). Approximately one-third of the patients had normal motility (34.5%) on HROM, 54% had ineffective esophageal motility, 7.3% had absent contractility, 3.2% had esophageal-gastric junction outflow obstruction, 0.5% had distal esophageal spasm, 0.5% has achalasia, and one patient had hypercontractile esophagus.
No significant differences in manometric diagnoses appeared between men and women. In addition, HARQ scores showed a significant inverse correlation with esophageal contractility as measured by distal contractile integral (DCI).
“The proportion of patients with esophageal dysmotility is consistently high over a range of respiratory diseases, including interstitial lung disease (72%), airways disease (57%), and chronic cough (68%),” and the findings suggest that esophageal disease may play a role in patients with persistent respiratory symptoms, they noted.
The study authors proposed that “impaired peristaltic activity of the esophagus, leading to aspiration of gaseous nonacidic refluxate into the airways, may be a contributor in the development and progression of respiratory disease.” They added that the HARQ offers clinicians a useful screening tool for assessing the need for esophageal study in patients with persistent respiratory symptoms that should be used before considering antireflux surgery.
The study findings were limited by several factors including the lack of lung function data for patients with airway disease and ILD and the inability to show causality between esophageal dysmotility and refractory respiratory symptoms, the researchers noted. Other limitations include the retrospective design, and the lack of data on symptom severity and the subsequent impact on outcomes.
However, the results support the need for additional research into the relationship between esophageal dysmotility, lung function, and symptom burden in chronic respiratory disease, and may inform investigations of therapeutic targets, they concluded.
The study received no outside funding. The researchers had no financial conflicts to disclose.
Individuals with esophageal dysmotility had significantly higher scores on measures of airway reflux symptoms, based on data from 441 patients.
Many patients with chronic respiratory diseases experience persistent symptoms despite optimal treatment, and the reason is often unclear and frustrating for clinicians and patients, Dominic L. Sykes, MD, of Hull (England) University Teaching Hospitals NHS Trust, and colleagues wrote.
Although more studies in recent years have explored the association between gastroesophageal reflux and respiratory diseases such as asthma and chronic obstructive pulmonary disease, data on a potential link between esophageal motility and respiratory disease in adults are limited, they noted.
In a study published in Respiratory Medicine, the researchers reviewed data from 441 adults with refractory respiratory symptoms who were treated at a single center between Jan. 1, 2011, and Dec. 1, 2021. Symptoms included persistent cough and breathlessness despite optimal medication. The participants underwent examination with high-resolution esophageal manometry (HROM). Airway reflux was measured using the Hull Airways Reflux Questionnaire (HARQ). The mean age of the patients was 56.5 years, and 64% were women.
Overall, the most common diagnoses were chronic cough (77%), asthma (10%), and interstitial lung disease (7%). The prevalence of esophageal dysmotility was 66%. Patients with esophageal dysmotility had significantly higher HARQ scores than those with normal motility (40.6 vs. 35.3; P < .001). Approximately one-third of the patients had normal motility (34.5%) on HROM, 54% had ineffective esophageal motility, 7.3% had absent contractility, 3.2% had esophageal-gastric junction outflow obstruction, 0.5% had distal esophageal spasm, 0.5% has achalasia, and one patient had hypercontractile esophagus.
No significant differences in manometric diagnoses appeared between men and women. In addition, HARQ scores showed a significant inverse correlation with esophageal contractility as measured by distal contractile integral (DCI).
“The proportion of patients with esophageal dysmotility is consistently high over a range of respiratory diseases, including interstitial lung disease (72%), airways disease (57%), and chronic cough (68%),” and the findings suggest that esophageal disease may play a role in patients with persistent respiratory symptoms, they noted.
The study authors proposed that “impaired peristaltic activity of the esophagus, leading to aspiration of gaseous nonacidic refluxate into the airways, may be a contributor in the development and progression of respiratory disease.” They added that the HARQ offers clinicians a useful screening tool for assessing the need for esophageal study in patients with persistent respiratory symptoms that should be used before considering antireflux surgery.
The study findings were limited by several factors including the lack of lung function data for patients with airway disease and ILD and the inability to show causality between esophageal dysmotility and refractory respiratory symptoms, the researchers noted. Other limitations include the retrospective design, and the lack of data on symptom severity and the subsequent impact on outcomes.
However, the results support the need for additional research into the relationship between esophageal dysmotility, lung function, and symptom burden in chronic respiratory disease, and may inform investigations of therapeutic targets, they concluded.
The study received no outside funding. The researchers had no financial conflicts to disclose.
Individuals with esophageal dysmotility had significantly higher scores on measures of airway reflux symptoms, based on data from 441 patients.
Many patients with chronic respiratory diseases experience persistent symptoms despite optimal treatment, and the reason is often unclear and frustrating for clinicians and patients, Dominic L. Sykes, MD, of Hull (England) University Teaching Hospitals NHS Trust, and colleagues wrote.
Although more studies in recent years have explored the association between gastroesophageal reflux and respiratory diseases such as asthma and chronic obstructive pulmonary disease, data on a potential link between esophageal motility and respiratory disease in adults are limited, they noted.
In a study published in Respiratory Medicine, the researchers reviewed data from 441 adults with refractory respiratory symptoms who were treated at a single center between Jan. 1, 2011, and Dec. 1, 2021. Symptoms included persistent cough and breathlessness despite optimal medication. The participants underwent examination with high-resolution esophageal manometry (HROM). Airway reflux was measured using the Hull Airways Reflux Questionnaire (HARQ). The mean age of the patients was 56.5 years, and 64% were women.
Overall, the most common diagnoses were chronic cough (77%), asthma (10%), and interstitial lung disease (7%). The prevalence of esophageal dysmotility was 66%. Patients with esophageal dysmotility had significantly higher HARQ scores than those with normal motility (40.6 vs. 35.3; P < .001). Approximately one-third of the patients had normal motility (34.5%) on HROM, 54% had ineffective esophageal motility, 7.3% had absent contractility, 3.2% had esophageal-gastric junction outflow obstruction, 0.5% had distal esophageal spasm, 0.5% has achalasia, and one patient had hypercontractile esophagus.
No significant differences in manometric diagnoses appeared between men and women. In addition, HARQ scores showed a significant inverse correlation with esophageal contractility as measured by distal contractile integral (DCI).
“The proportion of patients with esophageal dysmotility is consistently high over a range of respiratory diseases, including interstitial lung disease (72%), airways disease (57%), and chronic cough (68%),” and the findings suggest that esophageal disease may play a role in patients with persistent respiratory symptoms, they noted.
The study authors proposed that “impaired peristaltic activity of the esophagus, leading to aspiration of gaseous nonacidic refluxate into the airways, may be a contributor in the development and progression of respiratory disease.” They added that the HARQ offers clinicians a useful screening tool for assessing the need for esophageal study in patients with persistent respiratory symptoms that should be used before considering antireflux surgery.
The study findings were limited by several factors including the lack of lung function data for patients with airway disease and ILD and the inability to show causality between esophageal dysmotility and refractory respiratory symptoms, the researchers noted. Other limitations include the retrospective design, and the lack of data on symptom severity and the subsequent impact on outcomes.
However, the results support the need for additional research into the relationship between esophageal dysmotility, lung function, and symptom burden in chronic respiratory disease, and may inform investigations of therapeutic targets, they concluded.
The study received no outside funding. The researchers had no financial conflicts to disclose.
FROM RESPIRATORY MEDICINE