Pulmonary Artery Pressures and Mortality During Venoarterial ECMO: An ELSO Registry Analysis

医学 体外膜肺氧合 心脏病学 肺动脉 内科学 优势比 四分位数 脉冲压力 血流动力学 血压 置信区间
作者
Clark G. Owyang,Brady Rippon,Felipe Teran,Daniel Brodie,Joaquín Araos,Daniel Burkhoff,Jiwon Kim,Joseph E. Tonna
出处
期刊:Circulation-heart Failure [Ovid Technologies (Wolters Kluwer)]
标识
DOI:10.1161/circheartfailure.123.011123
摘要

BACKGROUND: Systemic hemodynamics and specific ventilator settings have been shown to predict survival during venoarterial extracorporeal membrane oxygenation (ECMO). How the right heart (the right ventricle and pulmonary artery) affect survival during venoarterial ECMO is unknown. We aimed to identify the relationship between right heart function with mortality and the duration of ECMO support. METHODS: Cardiac ECMO runs in adults from the Extracorporeal Life Support Organization Registry between 2010 and 2022 were queried. Right heart function was quantified via pulmonary artery pulse pressure (PAPP) for pre-ECMO and on-ECMO periods. A multivariable model was adjusted for modified Society for Cardiovascular Angiography and Interventions stage, age, sex, and concurrent clinical data (ie, pulmonary vasodilators and systemic pulse pressure). The primary outcome was in-hospital mortality. RESULTS: A total of 4442 ECMO runs met inclusion criteria and had documentation of hemodynamic and illness severity variables. The mortality rate was 55%; nonsurvivors were more likely to be older, have a worse Society for Cardiovascular Angiography and Interventions stage, and have longer pre-ECMO endotracheal intubation times ( P <0.05 for all) than survivors. Increasing PAPP from pre-ECMO to on-ECMO time (ΔPAPP) was associated with reduced mortality per 2 mm Hg increase (odds ratio, 0.98 [95% CI, 0.97–0.99]; P =0.002). Higher on-ECMO PAPP was associated with mortality reduction across quartiles with the greatest reduction in the third PAPP quartile (odds ratio, 0.75 [95% CI, 0.63–0.90]; P =0.002) and longer time on ECMO per 10 mm Hg (beta, 15 [95% CI, 7.7–21]; P <0.001). CONCLUSIONS: Early on-ECMO right heart function and interval improvement from pre-ECMO values were associated with mortality reduction during cardiac ECMO. Incorporation of right heart metrics into risk prediction models should be considered.
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