Current state of portosystemic shunt surgery

Area of Science:

• Gastroenterology
• Hepatology
• Surgical Gastroenterology

Background:

• Endoscopic therapy failure necessitates a switch to decompressive shunt procedures for recurrent variceal hemorrhage.
• Surgical shunt procedures remain safe, effective, and durable for variceal bleeding in low-risk patients with good liver function.

Purpose of the Study:

• To review the indications and preferred techniques for surgical shunt procedures in managing variceal bleeding.
• To compare the efficacy of different shunt types in cirrhotic and noncirrhotic patients.

Main Methods:

• Review of surgical shunt procedures for variceal bleeding.
• Analysis of patient selection criteria based on liver function and prognosis (Child-Pugh score).
• Evaluation of different shunt techniques including selective distal splenorenal shunt (Warren) and partial portocaval interposition shunt (Sarfeh).

Main Results:

• Portal flow-preserving shunts (Warren, Sarfeh) are preferred for elective surgery in cirrhotic patients.
• End-to-side portocaval shunt may be a salvage option for refractory bleeding.
• Portosystemic shunt surgery is the sole effective therapy for noncirrhotic portal hypertension, improving bleeding and hypersplenism without worsening liver function.

Conclusions:

• Elective surgical shunts are recommended for patients with good prognosis (Child-Pugh A and B) awaiting definitive trial results.
• Gastroesophageal devascularization is reserved for cases where endoscopic therapy fails and shuntable tributaries are absent.
• Portosystemic shunt surgery offers long-term freedom from bleeding for noncirrhotic portal hypertension patients.