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Veno arterial-extra corporal membrane oxygenation for the treatment of cardiac failure in patients with infective endocarditis

Introduction: Surgery for infective endocarditis imposes great challenges in post-operative circulatory and pulmonary support but the role of veno-arterial extra-corporal membrane oxygenation in this respect is unclear. Methods: All patients undergoing veno-arterial extra-corporal membrane oxygenation after infective endocarditis surgery were analysed for age, gender, medical history, microorganisms, clinical outcome, complications and surgical procedure. Results: Between 2012 and 2016, 13 patients received veno-arterial extra-corporal membrane oxygenation following infective endocarditis surgery. The median age was 62 years (33-73) and 8/13 were male. Previous cardiac surgery was present in nine patients. Surgery for infective endocarditis consisted of a Bentall procedure in 10 patients, 2 of which received concomitant mitral valve surgery and 2 received concomitant coronary artery bypass graft. Valvular surgery alone was performed in three patients. Mortality on veno-arterial extra-corporal membrane oxygenation was 62% (8/13). Mortality during intensive care unit stay was 77% (10/13). Survival to discharge was 23% (3/13). One patient reached the 1 year survival point. Two patients who survived to discharge have not yet reached the 1 year survival point. Patient-related complications occurred in 54% (7/13) of patients and consisted of haemorrhage at the cannula site in four patients, leg ischaemia in one patient, haemorrhage at another site in one patient and infection of the cannula in one patient. Extra-corporal membrane oxygenation hardware-related complications occurred in one case consisting of clot formation in the oxygenator. Conclusion: Veno-arterial extra-corporal membrane oxygenation in post-cardiotomy patients who were operated on for infective endocarditis is feasible, but outcome is poor.