Title :
Computer analysis of portal hemodynamics after portacaval shunt
Author :
Peng, J. ; Rusch, Ph. ; Baltque, J.G. ; Elboustim, A. ; Soler, C. ; Anne, C. ; Voutay, M. ; Healy, J.C.
Author_Institution :
Laboratoire de Biophysique et Informatique Médicale, Faculté de Médecine, Université Jean Monnet, 42023 Si-Etienne Cedex, Service de Chirurgie Générale Hôpital Bellevuc, 4, boulevard Pasteur, 42023 St - Eti
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
In this study we performed an analysis of portal hemodynamic after partial shunting using the Wheatstone bridge model of the splanchnic circulation. The model was modified to include a variable resistance for a portacaval shunt and was programmed as a computer simulation. Simulation results demonstrate that if the portacaval pressure gradient is diminished below 1/3 of the initial value after portacaval shunt, the inversion of the portal flow will be made. The portacaval pressure gradient after shunting, in pratice should be maintained at 2/3 of the initial value. These predictions were confirmed by clinical observations in 35 patients undergoing portacaval shunt.
Keywords :
Electrical resistance measurement; Mercury (metals); Portals; Resistance;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris, France
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5761054
