RT Book, Section A1 Ruffolo, Luis I. A1 Nghiem, Bao Tram A1 Linehan, David C. A1 Tomiyama, Koji A1 Hernandez-Alejandro, Roberto A2 Molmenti, Ernesto Pompeo A2 SantibaƱes, Martin de A2 SantibaƱes, Eduardo de SR Print(0) ID 1178710198 T1 The RAPID Concept: Pushing the Boundary in Resectability in Liver Transplant Oncology T2 Liver Transplantation: Operative Techniques and Medical Management YR 2021 FD 2021 PB McGraw Hill PP New York, NY SN 9781260462517 LK accesssurgery.mhmedical.com/content.aspx?aid=1178710198 RD 2021/03/03 AB Auxiliary liver grafts are temporary allografts transplanted to provide hepatocyte function during acute liver failure (ALF) in an otherwise previously healthy patient expected to recover endogenous liver function through normal liver regeneration. This approach can potentially spare the need for future immunosuppression, as the auxiliary graft can be allowed to reject once native liver function recovers.In 1990 heterotopic auxiliary liver transplantations (HALTs) were described to provide a hepatic mass for patients with ALF,1 yet were marred by high rates of mortality and complications, stemming in part from venous outflow obstruction and lack of accommodating heterotopic locations.However, with further refinement, auxiliary partial orthotopic liver transplantation (APOLT) improved the previously unforgiving rates of primary nonfunction and allograft failure, with small European experiences demonstrating parity between orthotopic liver transplantation (OLT) and APOLT.2,3APOLT encompasses the transplantation of a left graft or left lateral section to a patient in ALF. A left lateral sectionectomy is performed to accommodate the graft and provide adequate venous drainage. The transplant allograft bridges the patient through ALF until the native liver can recover. Over time, immunosuppression can be slowly weaned, such that the transplanted allograft is rejected and involutes.4Yet despite improvements in technique and strategy, auxiliary liver transplantation has failed to garner widespread adoption, even within the small subset of patients who present with fulminant, yet recoverable liver failure, as in patients with acetaminophen or mushroom overdoses.APOLT served as the technical basis for the RAPID (resection and partial liver segment two-thirds transplantation with delayed total hepatectomy) concept in liver transplantation, with similar technique in anastomosis and approach (Fig. 22-1).