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Ann Thorac Surg 2003;76:2109-2111
© 2003 The Society of Thoracic Surgeons

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Special considerations on the implantation technique for the MicroMed-DeBakey ventricular assist device axial pump

Georg M. Wieselthaler, MDa*, Heinrich Schima, PhDa, Ernst Wolner, MDa

a Department of Cardiothoracic Surgery and Ludwig Boltzmann Institute for Cardiosurgical Research, University of Vienna, Vienna, Austria

Accepted for publication March 17, 2003.

* Address reprint requests to Dr Wieselthaler, Department of Cardiothoracic Surgery, University of Vienna, Waehringer Guertel 18-20, A-1090, Vienna, Austria
e-mail: georg.wieselthaler{at}akh-wien.ac.at

Implantable continuous flow axial pumps were introduced to clinical settings in November 1998 with the MicroMed-DeBakey ventricular assist device. Axial pumps continuously unload the failing left ventricle and accurate positioning of the inflow cannula prevents substantial reductions in pump flow. Considerations on the implantation technique are made to minimize surgical trauma, to prevent ventricular collapse, to optimize inflow conditions (flow increased from 4.3 ± 0.6 to 6.7 ± 0.3 L/min), and to facilitate the subsequent transplantation.






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