Role of temporary portosystemic surgical shunt during liver resection to prevent a post-resection small for size-like syndrome

Author:

Lanari Jacopo,Polacco Marina,Cillo Umberto

Abstract

Liver resection stands as the gold-standard therapeutic approach for selected cases of hepatocellular carcinoma (HCC). The extent of resectable parenchyma hinges upon the underlying liver function and its regenerative potential. Consequently, cirrhosis may impede access to potentially curative interventions for HCC arising within this context. Cirrhotic patients undergoing liver resection face heightened susceptibility to post-hepatectomy liver failure (PHLF). The clinical profile of PHLF bears a resemblance to a well-documented syndrome within the liver transplant (LT) domain: Small-for-size syndrome (SFSS), a form of graft failure observed in the postoperative phase following LT with undersized or partial organs. Management of SFSS targets mitigating the overflow syndrome, achievable through diverse portal diversion techniques. Portal vein flow diversion encompasses procedures redirecting a variable proportion of portal vein flow towards systemic circulation. Consequently, derivative procedures aim to directly alleviate portal hypertension. Side-to-side portocaval shunts emerge as the most straightforward and efficacious means of decompressing the portal system. Furthermore, they afford flow calibration to diminish the incidence and severity of steal syndrome and hepatic encephalopathy, without compromising efficacy or hepatic function. Translating insights gleaned from LT complexities involving SFSS to liver resection, strategies involving portal flow diversion warrant consideration in efforts to forestall PHLF. This approach aims to extend the frontiers of liver surgery, broadening access to hepatectomy with curative intent, either as a standalone intervention or as part of a comprehensive treatment regimen where LT serves as a secondary option.

Publisher

OAE Publishing Inc.

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