Energy balance
Anti-obesity medications and bariatric surgery improve Obstructive Sleep Apnea (OSA) severity, measured by Apnea-Hypopnea Index (AHI), in direct proportion to the percentage of body weight lost, regardless of the specific intervention type.
If you have OSA and are overweight, losing weight through medication or surgery will improve your sleep apnea severity. For every 1% of body weight you lose, your Apnea-Hypopnea Index (AHI) drops by about 0.45 events per hour. This benefit is consistent whether you lose the weight through medication or surgery, meaning you can choose the method that fits your lifestyle and risk tolerance while expecting similar proportional improvements in your sleep apnea.
Meta-regression showed that study-level weight loss predicts the mean change in AHI (p = 0.005), with a 1% average weight loss expected to cause a 0.45 events per hour decrease in AHI (95% CI: 0.18–0.73 events per hour). There was no significant difference in the weight loss-to-AHI change relationship between anti-obesity medications and surgical studies (p = 0.66).
Why this rating
Based on a systematic review and meta-analysis of 10 RCTs (n=854), though limited by the small number of studies and potential bias in surgical trials.
Source
The association of weight loss from anti‐obesity medications or bariatric surgery and apnea‐hypopnea index in obstructive sleep apnea
Brian W. Locke et al. · Obesity Reviews · 2024
DOI 10.1111/obr.13697
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