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Updated: May 11, 2026

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
Published on: June 12, 2021
Sudden power loss in a HeartMate II left ventricular assist device due to intermittent pin contact with the battery:
Dean Belway1, Mark Cleland, Timothy Zakutney
1Perfusion Services, University of Ottawa Heart Institute, Ottawa, Ontario, Canada. dbelway@ottawaheart.ca
Abstract:
Left ventricular assist device technology has improved such that mechanical malfunction, particularly with newer generation continuous flow devices, is a relatively rare event. We present a case of sudden power loss in a HeartMate II caused by intermittent contact of the battery terminals after a clip was dropped with the battery inserted in it. The clip was replaced and the patient made a complete recovery. A new inspection and testing methodology, and amended approach to patient and caregiver training, designed to prevent future occurrences is described.
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