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Updated: Nov 7, 2025

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Comorbidity clusters in patients with moderate-to-severe OSA
Dries Testelmans1,2, M A Spruit3,4,5, B Vrijsen6,7
1Department of Pulmonology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium. dries.testelmans@uzleuven.be.
Obstructive sleep apnea patients often have multiple comorbidities. This study identified nine distinct comorbidity clusters, revealing significant differences in cardiovascular risk, CPAP adherence, and survival rates among them.
Area of Science:
- Sleep Medicine
- Cardiology
- Internal Medicine
Background:
- Obstructive sleep apnea (OSA) is a common condition with significant health implications.
- The interplay between OSA, comorbidities, and patient outcomes requires further investigation.
- Objective identification and clustering of comorbidities can refine OSA phenotyping.
Purpose of the Study:
- To cluster patients with OSA based on 10 objectively identified comorbidities.
- To characterize these comorbidity clusters by clinical features, polysomnography (PSG) data, CPAP adherence, and survival.
- To understand the association between OSA phenotypes and comorbidity burden.
Main Methods:
- Inclusion of 710 patients with moderate-to-severe OSA initiating CPAP therapy.
- Utilized self-organizing maps for patient clustering based on comorbidity presence and severity.
- Defined comorbidities using established literature cutoffs.
Main Results:
- Over 94% of patients had at least one comorbidity; hypertension, dyslipidemia, and obesity were most frequent.
- Identified nine distinct comorbidity clusters with varying clinical presentations and PSG parameters.
- Demonstrated significant differences in cardiovascular risk, CPAP adherence, and long-term survival across clusters.
Conclusions:
- High comorbidity prevalence in OSA patients necessitates comprehensive assessment beyond AHI.
- Distinct comorbidity clusters in OSA impact cardiovascular risk, treatment adherence, and survival.
- These findings support personalized OSA management strategies based on comorbidity profiles.
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