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Interventional Treatment of LVAD Outflow Graft Stenosis by Introduction of Bare Metal Stents

Wiedemann, Dominik*; Schlöglhofer, Thomas†‡; Haberl, Thomas*; Riebandt, Julia*; Dimitrov, Kamen*; Schima, Heinrich*†‡; Kastner, Johannes§; Matzek, Wolfgang; Laufer, Günther*; Zimpfer, Daniel*‡

doi: 10.1097/MAT.0000000000000547
Case Reports

Left ventricular assist device outflow graft stenosis is a rare but life-threatening complication of mechanical cirulatory support therapy. Current treatment modalities (pump exchange or systemic thrombolytic therapy) are associated with significant mortality and morbidity. Implantation of bare metal stents within the stenosed outflow graft is an alternative. Herein, we describe a series of three cases with successful stent placement. This seems to be safe and successful; however, correct and early diagnosis of outflow stenosis can be challenging. Information provided by the HeartWare ventricular assist device (HVAD) logfiles is extremely helpful for diagnosis.

From the *Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria; Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Cluster for Cardiovascular Research, Medical University of Vienna, Vienna, Austria; §Department of Cardiology, Medical University of Vienna, Vienna, Austria; and Department of Interventional Radiology, Medical University of Vienna, Vienna, Austria.

Submitted for consideration August 2016; accepted for publication in revised form December 2016.

Disclosure: The authors have no conflicts of interest to report.

Correspondence: Dominik Wiedemann, Department of Cardiac Surgery, Medical University of Vienna, Währinger Gürtel 18–20, 1090 Vienna, Austria. Email: dominik.wiedemann@meduniwien.ac.at.

Copyright © 2018 by the American Society for Artificial Internal Organs