A simple calculation for obtaining shunt fractions of portosystemic shunts.
Since the isotopes can not be utilized for veterinary patients in Japan, the authors developed a simple calculation formula of shunt fraction of portosystemic shunt based on the hepatic circulation model. The shunt fraction can be calculated utilizing only 2 portal pressure measurements of pre-shunt ligation and temporary or permanent shunt ligation. The calculated shunt fraction can obtained pre-ligation and post-ligation either temporally or permanent complete shunt ligation: complete ligation group of PSS (n=59) had 48.2 +/- 16.9% of shunt fractions, whereas the partial ligation group (n=48) had 71.6 +/- 10.7% of shunt fractions.
Washizu
Makoto
M
Laboratory of Veterinary Medical Teaching Hospital, Nippon Veterinary and Animal Science University, Tokyo, Japan.
Torisu
Shido
S
Kondo
Yogo
Y
Shimizu
Nashiku
N
Washizu
Tsukimi
T
Takemura
Naoyuki
N
Kinoshita
Gen
G
D008099:Liver / Q000098:blood supply*; D008954:Models, Biological; D017082:Portal Pressure; D011170:Portasystemic Shunt, Surgical / Q000379:methods*