ABSTRACT
Background Fulminant myocarditis can cause biventricular dysfunction with a mortality rate over 40%. We report a case with severe biventricular failure due to fulminant myocarditis that was successfully supported by left and right ventricular assist devices. Case A 65-year-old woman presented with chest pain, abdominal pain and diarrhea. She was hypotensive and labs revealed elevated troponin-T of 13.5 ng/mL and lactate of 4.3 mmol/L. She was positive for COVID by antigen testing. She was started on multiple vasopressor infusions and admitted to the intensive care unit. Echocardiogram revealed a severely reduced left ventricular ejection fraction of 15% and severe global hypokinesis. The following day, she developed a wide complex tachycardia that was refractory to amiodarone, lidocaine and multiple defibrillation attempts. She was transferred emergently to the cardiac cath lab where coronary angiography revealed an isolated 70% stenosis of the distal left circumflex artery. A Swan-Ganz catheter was placed that yielded a cardiac index by Fick of 1.2 L/min/m2, systemic vascular resistance of 1270 dynesseccm-5 and mixed venous oxygen saturation of 35%. Decision was made to emergently insert an Impella CP device. That evening, she developed complete heart block and transvenous pacing wire was inserted. Due to frequent suction alarms, decision was made to insert ProtekDuo device, which resulted in hemodynamic stabilization. A temporary coronary sinus pacing lead for atrial capture was inserted to improve atrioventricular synchrony. After several days of monitoring, repeat echocardiogram showed complete recovery of biventricular function and Impella CP and ProtekDuo devices were removed. Decision-making The decision of early implantation of ProtekDuo device was made to provide adequate blood flow to the left ventricular assist device for hemodynamic support. In addition, increased atrioventricular synchrony via insertion of temporary coronary sinus pacing wire improved cardiac output. Conclusion Fulminant myocarditis involving biventricular dysfunction can be supported by the use of simultaneous left and right ventricular assist devices.Copyright © 2023 American College of Cardiology Foundation