Related Experiment Videos
Portal hypertension. A new beginning for an old problem
The American Journal of Digestive Diseases
|September 1, 1976
Summary
Selective shunts like the Warren shunt may offer better long-term survival and less encephalopathy than total shunts for esophageal varices. Further trials are needed to confirm prophylactic benefits.
Area of Science:
- Gastroenterology
- Surgical Innovation
- Hepatology
Background:
- Esophageal varices pose a significant bleeding risk in patients with portal hypertension.
- Two main surgical approaches exist: total shunts and selective shunts.
- Total shunts aim to decompress both portal and variceal systems, often diverting portal flow.
Purpose of the Study:
- To compare the efficacy and safety of total shunts versus selective distal splenorenal (Warren) shunts.
- To evaluate operative mortality, postoperative bleeding, encephalopathy, and long-term survival.
Main Methods:
- A prospective, randomized clinical trial involving 46 patients.
- Comparison between a total shunt (mesorenal H graft) and the selective distal splenorenal (Warren) shunt.
Main Results:
- No significant difference in operative mortality or postoperative bleeding frequency.
- Significantly higher rates of encephalopathy following total shunts (P < 0.05).
- A trend suggests improved long-term survival with the Warren shunt.
Conclusions:
- The Warren shunt demonstrates potential superiority over total shunts in selected patients due to lower encephalopathy rates.
- Further multicenter trials are necessary to establish the prophylactic value of the Warren shunt in patients who have not yet bled.