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Patrick F. Wouters
Ferdinand R. Waldenberger
Roland H. Demeyere
Paul T. Sergeant
Willem J. Daenen
Willem J. Flameng
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Ann Thorac Surg 1993;55:1141-1146
© 1993 The Society of Thoracic Surgeons

Articles

Left ventricular assist with an axial flow pump (Hemopump): Clinical application

Albrecht C. Wiebalck, MDa,b, Patrick F. Wouters, MDa,b, Ferdinand R. Waldenberger, MDa,b, Belhan Akpinar, MDa,b, Peter M. Lauwers, MDa,b, Roland H. Demeyere, MDa,b, Paul T. Sergeant, MD, PhDa,b, Willem J. Daenen, MDa,b, Willem J. Flameng, MD*,a,b

a Departments of Cardiac Surgery, Anaesthesiology, and Intensive Care Medicine and Centre of Experimental Surgery and Anaesthesiology, University Clinic Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium
b Department of Cardiac Surgery, OLV Hospital Aalst, Aalst, Belgium

Accepted for publication July 31, 1992.

* Address reprint requests to Dr Flameng, Centre for Experimental Surgery and Anaesthesiology, Minderbroedersstraat 17, B-3000 Leuven, Belgium.

Eighteen patients suffering from acute left heart failure were selected as candidates for Hemopump support. In 6 patients, peripheral atheromatosis prevented insertion of the device. Of the remaining 12 patients, 9 had postcardiotomy shock, 2 had acute rejection after orthotopic heart transplantation, and 1 had acute myocardial infarction complicated by a large postinfarction ventricular septal defect. During Hemopump support, hemodynamics recovered in all patients. Major complications were related to mechanical pump failure, such as fracture of the drive cable and expulsion of the cannula out of the ventricle, or to hemolysis of variable degree. Seven patients (58%) survived and were discharged from the hospital: the 2 patients bridged to heart transplantation and 5 of the 9 postcardiotomy patients, including 1 who could not be weaned but later underwent successful transplantation. The patient with the postinfarction vetricular septal defect died after removal of the device because of hemolysis. These results indicate that the Hemopump is a relatively noninvasive and efficacious left ventricular system of moderate power.




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