Acute HeartMate3 Malfunction Requiring Exchange Due to Intrapump Obstruction: Inflow Cannula Obstruction Can Cause HM3 Failure.

ASAIO JMar 11, 2026 (epub)
Case ReportCardiologyCardiothoracic Surgery

Divyam Goel, Krish Dewan, Stephen J Greene et al.

✦ AI-curated · Sources linked

Case in brief

A patient with a HeartMate III (HM3) left ventricular assist device developed acute pump failure 11 months after implantation. Evaluation identified biodebris obstructing both the inflow cannula and the pump interior. The malfunction was attributed to this intrapump obstruction, and the device required exchange. The report describes a life-threatening mechanical complication arising from material occluding the pump pathway.

What made this case unusual

The obstruction involved biodebris in both the inflow cannula and the pump interior, producing acute HM3 failure.

Diagnostic / clinical pearl

In a patient with acute HM3 malfunction, consider intrapump obstruction, including biodebris occluding the inflow cannula, as a potential cause.

Source

PubMed · PMID 41811331

Published in ASAIO J. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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