Title :
Effectiveness of cardiac assistance evaluated by computer simulation
Author :
Paolini, F. ; Avanzolini, G. ; Capello, A.
Author_Institution :
Dept. of Electron., Inf. & Syst., Bologna Univ., Italy
Abstract :
The effectiveness of left ventricular assist devices (LVAD) is investigated by using a pulsatile digital simulator of a cardiovascular/LVAD system, which takes advantage of a computer-aided design of control systems (CADCS) package. The simulation experiments show that, in case of reduced contractility of the natural left ventricle (LV), the insertion of a LVAD substantially increases the perfusion/energy-consumption ratio. In particular, myocardial perfusion and myocardial energy consumption are strongly influenced by the LVAD-LV delay and they reach optimal values when the LVAD works in counterpulsation.<>
Keywords :
artificial organs; cardiology; digital simulation; medical computing; cardiac assistance effectiveness; computer simulation; computer-aided design; counterpulsation; left ventricular assist devices; myocardial energy consumption; myocardial perfusion; perfusion/energy-consumption ratio; pulsatile digital simulator;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94412
