Difficult Course of a Teenager’s Cardiogenic Shock

ABSTRACT
Fulminant myocarditis is a peculiar condition characterized by sudden-onset diffuse myocardial inflammation leading to hemodynamic compromise. We report the case of a 15-year old male adolescent, without any cardiovascular history, who presented sudden-onset severe biventricular systolo-diastolic dysfunction leading to cardiogenic shock, 2 weeks after an episode of respiratory tract infection. A comprehensive treatment regimen was initiated including heart failure treatment, inotropic and vasoactive support, antibiotics, antiviral treatment, intravenous immunoglobulin, and glucocorticoids, but with poor evolution. Bridgetotransplantation therapy was taken into consideration for hemodynamic stabilization. Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) support was initiated, first peripherally, via femoral artery and femoral vein access, but secondary to left ventricle (LV) distension, the patient developed pulmonary edema. To decompress the LV, an echocardiography-guided atrial septostomy was performed, and after 2 days, central cannulation (right atrium – ascending aorta) with another cannula for left atrial venting was done, and the patient remained with open sternum. Five days from the initiation of VA-ECMO the patient underwent an orthotopic heart transplantation by bicaval technique with favorable evolution in the follow-up period. Early initiation of VA-ECMO is a salvage intervention in pediatric patients with fulminant myocarditis, but with multiple possible complications. This paper highlights strategies for the optimization of VA-ECMO.