Venoarterial Extracorporeal Membrane Oxygenation in Refractory Cardiogenic Shock and Cardiac Arrest

Abstract

Purpose: To describe the characteristics, outcomes, and risk factors associated with poor outcome of venoarterial extracorporeal membrane oxygenation (VA-ECMO)-treated patients with refractory shock post-cardiac arrest. Method(s): We retrospectively analyzed data collected prospectively (March 2007-January 2015) in a 26-bed tertiary hospital intensive care unit. All patients implanted with VA-ECMO for refractory cardiogenic shock after successful resuscitation from cardiac arrest were included. Refractory cardiac arrest patients, given VA-ECMO under cardiopulmonary resuscitation, were excluded. Result(s): Ninety-four patients received VA-ECMO for refractory shock post-cardiac arrest. Their hospital and 12-month survival rates were 28 and 27 %, respectively. All 1-year survivors were cerebral performance category 1. Multivariable analysis retained INR >2.4 (OR 4.9; 95 % CI 1.4-17.2), admission SOFA score >14 (OR 5.3; 95 % CI 1.7-16.5), and shockable rhythm (OR 0.3; 95 % CI 0.1-0.9) as independent predictors of hospital mortality, but not SAPS II, out-of-hospital cardiac arrest score, or other cardiac arrest variables. Only 10 % of patients with an admission SOFA score >14 survived, whereas 50 % of those with scores <14, shockable rhythm, and INR