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6CCVD Research

Heartmate 3 Left Ventricular Assist Device Bend Relief Disconnection Causing Laceration of the Outflow Graft

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2024-07-31
JournalASAIO Journal
AuthorsBritton B. Donato, Benjamin D. Seadler, Buruj W. Mohammed, Amber Zdanovec, H. Adam Ubert
InstitutionsMedical College of Wisconsin

Abstract

Section titled ā€œAbstractā€

As technology in mechanical circulatory support continues to advance, so does the utilization of durable left ventricular assist devices (LVADs). We present the first reported case of HeartMate 3 (HM3) LVAD bend relief disconnection causing laceration of the outflow graft. Our patient is a 34 year old male with end-stage heart failure status post-HM3 implantation with recent debridement of a driveline infection who presented with weakness and sanguineous drainage 5 days after an episode of heavy lifting associated with a palpable substernal pop. During the initial evaluation, he experienced sudden massive decompression of a left chest hematoma through a thoracotomy incision with exsanguinating hemorrhage and an abrupt drop in LVAD flow. An emergent anterolateral thoracotomy was performed where it was discovered that the bend relief was disconnected and had lacerated the outflow graft. The graft was repaired and the ring was removed using a diamond blade rotary saw. He was discharged home and made a full recovery. Mechanical device malfunction has been documented in several prior versions of durable LVADS. Although there have been reported cases in the Heartmate 2, this is the first reported case of a HM3 bend relief disconnection and resultant laceration of the outflow graft.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2023 - Mechanical device malfunction of the HeartMate II versus the Heartmate 3 left ventricular assist device: The Rotterdam experience. [Crossref]
  2. 2018 - Heart transplantation versus left ventricular assist devices as destination therapy or bridge to transplantation for 1-year mortality: A systematic review and meta-analysis. [Crossref]
  3. 2014 - Evaluation of bend relief disconnection in patients supported by a HeartMate II left ventricular assist device. [Crossref]
  4. 2018 - Five-year results of patients supported by HeartMate II: Outcomes and adverse events. [Crossref]
  5. 2022 - Heartmate 3 Left Ventricular Assist System Instructions for Use with Heartmate Touch.
  6. 2016 - Clinical trial design and rationale of the Multicenter Study of MagLev Technology in Patients Undergoing Mechanical Circulatory Support Therapy with HeartMate 3 (MOMENTUM 3) investigational device exemption clinical study protocol. [Crossref]
  7. 2017 - Left ventricular assist device malfunctions: It is more than just the pump. [Crossref]

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