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- 2018
Prolonged venoKeywords: Cardiogenic shock,extracorporeal life support,outcome,prolonged duration Abstract: In intractable cardiogenic shock, extracorporeal life support frequently is the last treatment option. Outcomes of prolonged veno-arterial extracorporeal life support for cardiac failure are poorly defined. We retrospectively analyzed 10 patients (4 females, age?=?36?±?16?years) who underwent prolonged extracorporeal life support (≥7?days) from December 2015 to March 2017 for cardiogenic shock. The primary endpoint was survival to hospital discharge. Etiologies included ischemic cardiomyopathy with non ST-segment elevation myocardial infarction (n?=?1), dilated (n?=?3), hypertrophic (n?=?1), postpartum cardiomyopathy (n?=?1), and others (n?=?4). Heart failure was left or biventricular in 80.0% (left ventricular ejection fraction?=?15.6?±?5.5%). Among the 10 patients, 80.0% underwent femoral and 20.0% central cannulation, 40.0% required changes in the cannulation strategy, and 80.0% underwent left ventricular venting. No technical malfunctions occurred, but 50.0% required circuit exchanges for thrombus formation. 80.0% suffered from infections. 60.0% could be decannulated after 717?±?830 (168–2301)?h of support, and survival to hospital discharge was 40.0%. Longest follow-up available is 160?±?175 (12–409)?days after discharge, with 30.0% alive and in satisfying functional condition. Prolonged veno-arterial extracorporeal life support for cardiac failure is feasible with low technical complication rates. Survival rates are acceptable, yet inferior to short-term support. We observed a shift from initial shock-related complications to infections during prolonged support. Since recovery and thus weaning is rather unlikely after a prolonged need for extracorporeal life support, this form of support should be limited to centers offering the full spectrum of interdisciplinary cardiac care including ventricular assist device implantation and transplantation
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