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Left Ventricular Assist Device With a Left Atrial Inflow Cannula for Hypertrophic Cardiomyopathy

Omid Kiamanesh1,2, Kate Rankin1, Filio Billia1,3

  • 1Division of Cardiology, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada.

JACC. Case Reports
|July 28, 2021
PubMed

Insights

Left ventricular assist device (LVAD) implantation is challenging in hypertrophic cardiomyopathy (HCM) patients. An alternative LVAD configuration using a left atrial cannula offers a viable bridge to transplantation for these patients.

Area of Science:

  • Cardiology
  • Medical Devices
  • Cardiac Surgery

Background:

  • Hypertrophic cardiomyopathy (HCM) presents challenges for left ventricular assist device (LVAD) therapy.
  • Small left ventricular cavity size in HCM increases the risk of suction events with standard LVAD inflow cannulas.

Observation:

  • This study presents an alternative LVAD configuration for patients with HCM.
  • The alternative configuration utilizes a left atrial inflow cannula.

Findings:

  • This novel LVAD approach was successfully employed in an adult patient with HCM.
  • The left atrial inflow cannula mitigated risks associated with a small left ventricular cavity.

Implications:

  • This configuration provides a potential solution for LVAD implantation in HCM patients.
  • It expands the options for mechanical circulatory support in patients ineligible for traditional LVADs.
  • This approach may serve as a bridge to transplantation for select HCM patients.

Keywords:
HCM, hypertrophic cardiomyopathyLA, left atriumLV, left ventricleLVAD, left ventricular assist deviceRA, right atriumRCM, restrictive cardiomyopathyRVAD, right ventricular assist deviceacute heart failurecardiac assist devicescardiomyopathyhemodynamicsleft ventriclepulmonary hypertension

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