Hepatic Vein Flow Index During Orthotopic Liver Transplantation as a Predictive Factor for Postoperative Early Allograft Dysfunction

Autor: Taro Kariya, Shunji Nagai, Kenichi A. Tanaka, Yoshihisa Morita, Ahmad Itani, Michael Isley
Rok vydání: 2020
Předmět:
Zdroj: Journal of cardiothoracic and vascular anesthesia. 35(11)
ISSN: 1532-8422
Popis: The authors devised a hepatic vein flow index (HVFi), using intraoperative transesophageal echocardiography and graft weight, and investigated its predictive value for postoperative graft function in orthotopic liver transplant.Prospective clinical trial.Single-center tertiary academic hospital.Ninety-seven patients who had orthotopic liver transplant with the piggy-back technique between February 2018 and December 2019.HVFi was defined with HV flow/graft weight. Patients who developed early graft dysfunction (EAD) had low HVFi in systole (HVFi sys, 1.23 v 2.19 L/min/kg, p0.01), low HVFi in diastole (HVFi dia, 0.87 v 1.54 L/min/kg, p0.01), low hepatic vein flow (HVF) in systole (HVF sys, 2.04 v 3.95 L/min, p0.01), and low HVF in diastole (HVF dia, 1.44 v 2.63 L/min, p0.01). More cardiac death, more vasopressors at the time of measurement, more acute rejection, longer time to normalize total bilirubin (TIME t-bil), longer surgery time, longer neohepatic time, and more packed red blood cell transfusion were observed in the EAD patients. All HVF parameters were negatively correlated with TIME t-bil (HVFi sys R = -0.406, p0.01; HFVi dia R = -0.442, p0.01; HVF sys R = -0.44, p0.01; HVF dia R = -0.467, p0.01). The receiver operating characteristic curve analysis determined the best cut-off levels of HVFi to predict occurrence of EAD (HVFi sys1.608, HVFi dia0.784 L/min/kg), acute rejection (HVFi sys1.388, HVFi dia1.077 L/min/kg), and prolonged high total bilirubin (HVFi sys1.471, HVFi dia1.087 L/min/kg).The authors' devised HVFi has the potential to predict the postoperative graft function.
Databáze: OpenAIRE