The effect of surgical weight loss on obstructive sleep apnoea: A systematic review and meta-analysis

Surgical weight loss led to a reduction in both body mass index and the apnoea-hypopnoea index (AHI).

• Obstructive sleep apnoea (OSA) severity persisted in the majority of subjects post-surgery.
• High variability between studies was noted, primarily linked to baseline AHI and follow-up duration.
• There was inadequate data to assess how different respiratory events scoring criteria influenced OSA severity.
• More randomized controlled trials are needed to confirm these findings due to the observed heterogeneity.
• Future studies should consistently report the scoring criteria used for clearer comparisons of OSA interventions.

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