What is the efficacy of level 3 portable monitors for the diagnosis of obstructive sleep apnea (OSA)?

Updated: Sep 15, 2020
  • Author: Himanshu Wickramasinghe, MD, MBBS; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

Level 3 portable monitors have the largest body of supportive evidence for use in diagnosing OSA. In general, level 3 monitors are best used to confirm the diagnosis of OSA rather than to rule it out. In addition, most of the studies using portable monitoring have validated the equipment in the laboratory, not in the home, and have done so in patients with high probability of disease and without significant comorbidities (particularly heart and lung disease). [141, 142]


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