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Review
. 2021 Nov 1;27(6):514-522.
doi: 10.1097/MCP.0000000000000817.

Rapid eye movement predominant obstructive sleep apnoea: prognostic relevance and clinical approach

Abdul Rouf Pirzada  1 , Ahmed S BaHammam  1   2
Affiliations
Review

Rapid eye movement predominant obstructive sleep apnoea: prognostic relevance and clinical approach

Abdul Rouf Pirzada et al. Curr Opin Pulm Med. .

Abstract

Purpose of review: Rapid eye movement (REM) obstructive sleep apnoea (OSA) is a stage-specific OSA, in which obstructive events occur primarily during REM sleep. This review discusses REM-OSA definitions, its cardiometabolic correlates, associated comorbidities and treatment, and addresses diagnostic ambiguities and therapeutic pitfalls.

Recent findings: Current evidence indicates that REM-OSA is prevalent among younger age groups and women and is independently associated with cardiometabolic complications, particularly hypertension, metabolic complications such as insulin resistance and metabolic syndrome. However, currently, there is no consensus on the accepted diagnostic criteria for REM-OSA. Available data suggest that adherence to positive airway pressure (PAP) therapy in patients with REM-OSA is suboptimal. Moreover, the currently accepted criteria for good adherence to PAP therapy of 4 h/night, 70% of the days may not be suitable for REM-OSA, as it will not cover most of the REM sleep periods. In addition, further research is needed to assess the impact of REM-OSA treatment on cardiometabolic outcomes.

Summary: Patients with REM-OSA are at an increased risk of cardiometabolic complications. A high index of suspicion is needed to diagnose this disorder, and close follow-up is required to enhance adherence to therapy.

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