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.
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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.To read this article in full you will need to make a payment
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References
- Use of gated cardiac computed tomography angiography in the assessment of left ventricular assist device dysfunction.ASAIO J. 2011; 57: 32-37
- Evaluation of right ventricular function and post-operative findings using cardiac computed tomography in patients with left ventricular assist devices.J Heart Lung Transplant. 2011; 30: 896-903
- Noninvasive assessment of left ventricular assist devices with cardiovascular computed tomography and impact on management.J Heart Lung Transplant. 2010; 29: 79-85
- Use of a continuous-flow device in patients awaiting heart transplantation.N Engl J Med. 2007; 357: 885-896
- Advanced heart failure treated with continuous-flow left ventricular assist device.N Engl J Med. 2009; 361: 2241-2251
Sorensen EN, Pierson RN III, Feller ED, et al. University of Maryland surgical experience with the Jarvik 2000 axial flow ventricular assist device. Ann Thorac Surg 2012;93:133.
Article info
Publication history
Published online: April 11, 2013
Identification
Copyright
© 2013 International Society for Heart and Lung Transplantation. Published by Elsevier Inc. All rights reserved.