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

Volume

2

fYear

1992

fDate

Oct. 29 1992-Nov. 1 1992

Firstpage

449

Lastpage

450

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IEMBS.1992.5761054

Filename

5761054