Kristopher P Croome1,2, Roberto Hernandez-Alejandro3, Maile Parker1, Julie Heimbach4, Charles Rosen4, David M Nagorney1. 1. Divisions of Gastroenterologic and General Surgery, Mayo Clinic, Rochester, MN, USA. 2. Department of Transplantation, Mayo Clinic, Jacksonville, FL, USA. 3. Department of Surgery, Hepatobiliary Surgery Western University, London, ON, Canada. 4. Division of Transplantation Surgery and Mayo Clinic William J. von Liebig Transplant Center, Mayo Clinic, Rochester, MN, USA.
Abstract
BACKGROUND: The clinical perspective on hepatic growth is limited. The goal of the present study was to compare hepatic hypertrophy and the kinetic growth rate(KGR) in patients after the ALPPS (Associating Liver Partition with Portal Vein Ligation for Staged Hepatectomy) procedure, portal vein embolization (PVE) and living donor liver transplantation. METHODS: Volumetry and KGR of the future liver remnant (FLR) were compared from (15) patients undergoing ALPPS, (53) patients undergoing PVE, (90) recipients of living donor liver grafts and (93) donors of living donor liver grafts. RESULTS: The degree of hypertrophy was significantly greater after ALPPS (84.3 ± 7.8%) than after PVE (36.0 ± 27.2%) (P < 0.001). The KGR was also significantly greater for ALPPS [32.7 ± 13.6 cubic centimetres (cc)/day] (10.8 ± 4.5%/day) compared with PVE (4.4 ± 3.2 cc/day) (0.98 ± 0.75%/day) (P < 0.001). The FLR of living donor donors had the greatest degree of hypertrophy (107.5 ± 39.2%) and was greater than after ALPPS (P = 0.02), PVE (P < 0.001) and in living donor-recipient grafts (P < 0.001). KGR (cc/day) was greater in FLR of living donor donors compared with both ALPPS (P < 0.001) and PVE (P < 0.001). The KGR in patients undergoing ALPPS and living donor liver transplantation had a linear relationship with the size of FLR. CONCLUSION: FLR hypertrophy and KGR were greater after ALPPS than PVE. However, the degree of hypertrophy after ALPPS is not unprecedented, as KGR in the FLR from living donor donors is equal to or greater than after ALPPS. The KGR of the FLR in patients after ALPPS and living donor donors correlates directly with the size of the FLR.
BACKGROUND: The clinical perspective on hepatic growth is limited. The goal of the present study was to compare hepatic hypertrophy and the kinetic growth rate(KGR) in patients after the ALPPS (Associating Liver Partition with Portal Vein Ligation for Staged Hepatectomy) procedure, portal vein embolization (PVE) and living donor liver transplantation. METHODS: Volumetry and KGR of the future liver remnant (FLR) were compared from (15) patients undergoing ALPPS, (53) patients undergoing PVE, (90) recipients of living donor liver grafts and (93) donors of living donor liver grafts. RESULTS: The degree of hypertrophy was significantly greater after ALPPS (84.3 ± 7.8%) than after PVE (36.0 ± 27.2%) (P < 0.001). The KGR was also significantly greater for ALPPS [32.7 ± 13.6 cubic centimetres (cc)/day] (10.8 ± 4.5%/day) compared with PVE (4.4 ± 3.2 cc/day) (0.98 ± 0.75%/day) (P < 0.001). The FLR of living donor donors had the greatest degree of hypertrophy (107.5 ± 39.2%) and was greater than after ALPPS (P = 0.02), PVE (P < 0.001) and in living donor-recipient grafts (P < 0.001). KGR (cc/day) was greater in FLR of living donor donors compared with both ALPPS (P < 0.001) and PVE (P < 0.001). The KGR in patients undergoing ALPPS and living donor liver transplantation had a linear relationship with the size of FLR. CONCLUSION: FLR hypertrophy and KGR were greater after ALPPS than PVE. However, the degree of hypertrophy after ALPPS is not unprecedented, as KGR in the FLR from living donor donors is equal to or greater than after ALPPS. The KGR of the FLR in patients after ALPPS and living donor donors correlates directly with the size of the FLR.
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