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[Comparative study of portal-systemic shunt rate measured by formula and radioactive method]
1Department of General Surgery, Third Clinical Hospital, Norman Bethune University of Medical Sciences, Changchun 130031.
Objective:
To establish a new simple and useful formula for the observation of portosystemic shunt.
Method:
In the same animals and the same patients, portosystemic shunt rate was measured individually by the two different methods, i.e. formula and radio active method. Using the results of the radio active method as a gold standard, the reliability of the formula method was assessed tested.
Result:
In 11 normal dogs, the portal-systemic shunt rate measured by the formula and radio active methods was 7.03% and 7.55% respectively (P > 0.05). In 9 portosystemic shunting model dogs, the portosystemic shunt rate calculated from the two methods was 48.64% and 51.11% respectively (P > 0.05). In 22 patients with portal hypertension, the preoperative results from the formula and radioactive methods were 52.38% and 55.86% respectively (P > 0.05). In these patients, the postoperative portal-systemic shunt rate was 26.22% and 31.00% respectively (P > 0.05).
Conclusion:
These results fully testified the reliability of the formula method we had established.