CPAPが心血管リスクに与える影響を予測する機械学習モデルを開発(Mount Sinai Researchers Develop Machine Learning Model to Predict How CPAP Affects Cardiovascular Disease Risk in Patients With Obstructive Sleep Apnea)

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2026-04-09 マウントサイナイ医療システム(MSHS)

マウントサイナイ医科大学の研究チームは、閉塞性睡眠時無呼吸症候群患者に対するCPAP療法が心血管疾患リスクに与える影響を予測する機械学習モデルを開発した。患者ごとに治療効果が異なる課題に対し、臨床データを基に個別リスク変化を高精度で推定可能とした点が特徴である。解析の結果、CPAPが心血管リスクを大きく低減する患者群と、効果が限定的な群が存在することが示された。本モデルにより、患者ごとに最適な治療戦略を選択できる可能性があり、個別化医療の推進に寄与する。今後は臨床応用を通じて治療効果の最大化と医療資源の効率化が期待される。

CPAPが心血管リスクに与える影響を予測する機械学習モデルを開発(Mount Sinai Researchers Develop Machine Learning Model to Predict How CPAP Affects Cardiovascular Disease Risk in Patients With Obstructive Sleep Apnea)

<関連情報>

睡眠時無呼吸症候群(非眠気性)患者におけるCPAPの二次的心血管アウトカムに対する個別化治療効果 Individualized treatment effects of CPAP on secondary cardiovascular outcomes in non-sleepy obstructive sleep apnea patients

Oren Cohen,Zainab Al-Taie,Vaishnavi Kundel,Samira Khan,Kavya Devarakonda,Vi Le,Philip M. Robson,Craig S. Anderson,Mathias Baumert,Kelly Loffler,R. Doug McEvoy,Mayte Suárez-Fariñas & Neomi A. Shah
Communications Medicine  Published:13 March 2026
DOI:https://doi.org/10.1038/s43856-026-01457-1  Unedited version

Abstract

Background

Continuous positive airway pressure (CPAP) remains the cornerstone of therapy for obstructive sleep apnea, yet its impact on preventing cardiovascular disease remains uncertain. Despite widespread clinical use, randomized controlled trials have not shown cardiovascular benefits with CPAP. Emerging evidence suggests that obstructive sleep apnea is a heterogeneous disease, and a uniform approach to treatment may obscure potential benefits or harm for individuals.

Methods

To address this, we applied causal survival forest analysis to data from the SAVE trial (n = 2,687), the largest clinical trial evaluating CPAP for cardiovascular disease prevention, to estimate individualized treatment effect scores for each participant.

Results

Our model reveals significant heterogeneity in treatment response across the cohort (area under the target operator characteristic curve 2.6; 95% confidence interval 2.03-4.55; p < 0.001). Survival analysis demonstrates that participants in the tertile predicted to benefit from CPAP experienced a 100-fold improvement in event-free survival when randomized to CPAP (p < 0.001), whereas those in the tertile predicted to be harmed experienced a > 100-fold increase in major adverse cardiovascular outcomes (p < 0.001).

Conclusions

To our knowledge, these findings provide the first evidence of individualized treatment effect estimates for CPAP therapy in obstructive sleep apnea. These results also highlight the potential for precision medicine approaches to guide treatment decisions, reduce cardiovascular disease risk, and avoid harm in susceptible individuals.

Plain Language Summary

Obstructive sleep apnea (OSA) is a common condition linked to heart disease and stroke. The main treatment, continuous positive airway pressure (CPAP), essentially eliminates breathing disturbances during sleep caused by OSA. However, large studies have not shown that CPAP lowers heart disease and stroke risk for all patients with OSA. In this study, we used machine learning to create a tool that predicts how CPAP might affect an individual’s cardiovascular health. Using data from a large clinical trial, the model estimates each patient’s likely benefit or risk from CPAP based on their sleep and health information. With further testing, this tool could help patients and doctors decide when CPAP should be used to prevent heart disease and strokes.

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