Extracorporeal Membrane Oxygenation for Severe Acute Respiratory Distress Syndrome Associated with COVID-19: An Emulated Target Trial Analysis

2019-20 coronavirus outbreak Coronavirus Rescue therapy
DOI: 10.1164/rccm.202111-2495oc Publication Date: 2022-05-09T16:03:39Z
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ABSTRACT
Rationale: Whether patients with coronavirus disease (COVID-19) may benefit from extracorporeal membrane oxygenation (ECMO) compared conventional invasive mechanical ventilation (IMV) remains unknown. Objectives: To estimate the effect of ECMO on 90-day mortality versus IMV only. Methods: Among 4,244 critically ill adult COVID-19 included in a multicenter cohort study, we emulated target trial comparing treatment strategies initiating no within 7 days severe acute respiratory distress syndrome (PaO2/FiO2 < 80 or PaCO2 ⩾ 60 mm Hg). We controlled for confounding using multivariable Cox model basis predefined variables. Measurements and Main Results: A total 1,235 met full eligibility criteria trial, among whom 164 initiated ECMO. The strategy had higher survival probability Day onset (87% vs. 83%; risk difference, 4%; 95% confidence interval, 0–9%), which decreased during follow-up (survival 90: 63% 65%; −2%; −10 to 5%). However, was associated when performed high-volume centers regions where specific network organization set up handle high demand first 4 who are profoundly hypoxemic. Conclusions: In an nationwide cohort, found differential over time no-ECMO strategy. consistently better outcomes capacities specifically organized demand.
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