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Late HeartMate 3 Thrombosis.

Michael J Pienta1, Kevin Knott1, Abbas Bitar2

  • 1From the Department of Cardiac Surgery, University of Michigan Frankel Cardiovascular Center, Ann Arbor, Michigan.

ASAIO Journal (American Society for Artificial Internal Organs : 1992)
|May 27, 2021
PubMed
Summary

Late HeartMate 3 pump thrombosis is rare, with this case highlighting a need for vigilance. This report details a unique instance of device thrombosis occurring later in the HeartMate 3 left ventricular assist device

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Area of Science:

  • Cardiology
  • Medical Devices
  • Surgical Technology

Background:

  • Left ventricular assist devices (LVADs) are crucial for end-stage heart failure management.
  • HeartMate 3 (HM3) is a widely used continuous-flow LVAD.
  • Pump thrombosis is a known but infrequent complication of LVADs.

Observation:

  • This case presents a rare instance of late-onset HeartMate 3 pump thrombosis.
  • The thrombosis occurred significantly after the perioperative period.
  • The patient required surgical intervention for pump exchange due to the thrombosis.

Findings:

  • Existing literature on HeartMate 3 pump thrombosis primarily describes early or outflow-related events.
  • This case illustrates a distinct pattern of late-onset thrombosis.
  • The thrombosis necessitated device explantation and replacement.

Implications:

  • Highlights the potential for late-onset HM3 pump thrombosis, distinct from early or outflow issues.
  • Suggests the need for ongoing monitoring and potential re-evaluation of thrombotic risk factors in HM3 patients.
  • Underscores the importance of timely diagnosis and management, including pump exchange, for such rare complications.