The causative relationship between obstructive sleep apnea (OSA) and gastroesophageal reflux disease (GERD) is unclear.
In this study, physicians from the United States evaluated obstructive sleep apnea and GERD in 136 patients with obstructive sleep apnea.
The team assessed all patients using a demographic survey, the validated GERD Symptom Checklist, and the Sleep Heart Health Study Sleep Habits Questionnaire.
They also scored polysomnograms to measure of sleep and breathing.
|74% of subjects had obstructive sleep apnea.|
|Clinical Gastroenterology and Hepatology|
The team defined obstructive sleep apnea as an apnea-hypopnea index greater than 5 with compatible symptoms.
The team found that 74% of subjects had obstructive sleep apnea.
They also found that self-reported heartburn or acid regurgitation symptoms were unrelated to severity of sleep apnea.
Furthermore, the physicians determined that obstructive sleep apnea was not influenced by the severity of GERD.
The team established that disordered sleep was more greatly associated with age, smoking, and alcohol use than with GERD in men, and with age and body mass index in women.
However, subjectively reported sleep quality was affected more strongly by GERD.
Dr Chad Morse and colleagues concluded, "Subjective reports of sleep quality were affected by GERD severity, but an objective correlation between obstructive sleep apnea and GERD was lacking".
"This may suggest that GERD and obstructive sleep apnea are common entities that share similar risk factors, but appear not to be causally linked".