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Case Reports in Critical Care
Volume 2014, Article ID 959704, 3 pages
Case Report

Left Main Coronary Artery Compression following Melody Pulmonary Valve Implantation: Use of Impella Support as Rescue Therapy and Perioperative Challenges with ECMO

1Division of Critical Care Medicine and Cardiothoracic Anesthesia, Department of Anesthesiology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA
2Division of Pediatric Cardiology, Department of Pediatrics, Mayo Clinic, Rochester, USA
3Division of Cardiovascular Surgery, Department of Surgery, Mayo Clinic, Rochester, USA

Received 8 January 2014; Accepted 4 February 2014; Published 18 March 2014

Academic Editors: C. Diez, Y. Durandy, and J. Starkopf

Copyright © 2014 Erica D. Wittwer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The purpose of this case is to describe the complex perioperative management of a 30-year-old woman with congenital heart disease and multiple resternotomies presenting with pulmonary homograft dysfunction and evaluation for percutaneous pulmonary valve replacement. Transvenous, transcatheter Melody valve placement caused left main coronary artery occlusion and cardiogenic shock. An Impella ventricular assist device (VAD) provided rescue therapy during operating room transport for valve removal and pulmonary homograft replacement. ECMO support was required following surgery. Several days later during an attempted ECMO wean, her hemodynamics deteriorated abruptly. Transesophageal and epicardial echocardiography identified pulmonary graft obstruction, requiring homograft revision due to large thrombosis. This case illustrates a role for Impella VAD as bridge to definitive procedure after left coronary occlusion and describes management of complex perioperative ECMO support challenges.