Obesity contributes to asthma; quite often, asthmatics who are obese cannot control their asthma properly and do not respond well to therapy. Factors like reflux disease and obstructive sleep apnea could be contributors to obese patients having bad asthma control. Researchers conducted a study to see if reflux and the symptoms of OSA do actually play a part in bad asthma control in obese patients.
Researchers studied patients taking part in a reflux treatment trial. They looked for asthma symptoms and lung function as well as sleep apnea symptoms. There were 402 patients in the overall trial. Of those patients, 51% were obese.
The study found that patients with a higher body mass index (BMI) had a higher occurrence of reflux symptoms. However, reflux was not linked with asthma control in the obese patients. Obstructive sleep apnea was more common among high BMI subjects and was linked to worse asthma control. In the end, the data suggests that sleep apnea, not reflux disease, could contribute greatly to bad asthma control in obese patients.
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