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The Journal of Heart and Lung Transplantation
International Society for Heart and Lung Transplantation.

Computed tomography correlates of inflow cannula malposition in a continuous-flow ventricular-assist device

      The HeartMate II (Thoratec Corporation, Pleasanton, CA) is an implanted axial-flow left ventricular assist device (LVAD). Its inflow cannula is placed in the left ventricle (LV) and is connected by a rigid elbow to the pump, which resides in a sub-diaphragmatic pocket. This configuration gives rise to the potential for inflow cannula malposition, frequently accompanied by symptoms such as recurrent heart failure, hemolysis or device thrombosis or ventricular arrhythmias.
      • Acharya D.
      • Singh S.
      • Tallaj J.A.
      • et al.
      Use of gated cardiac computed tomography angiography in the assessment of left ventricular assist device dysfunction.
      • Garcia-Alvarez A.
      • Fernandez-Friera L.
      • Lau J.F.
      • et al.
      Evaluation of right ventricular function and post-operative findings using cardiac computed tomography in patients with left ventricular assist devices.
      • Raman S.V.
      • Sahu A.
      • Merchant A.Z.
      • et al.
      Noninvasive assessment of left ventricular assist devices with cardiovascular computed tomography and impact on management.
      There have been no reports on the prevalence of this complication nor potential anatomic factors predisposing to its occurrence. Our group reviewed our experience with inflow cannula malposition and sought to determine whether pre-operative computed tomographic (CT) imaging could identify any associated anatomic features.
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        • Singh S.
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        • et al.
        Use of gated cardiac computed tomography angiography in the assessment of left ventricular assist device dysfunction.
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