Glycemic control during liver transplantation is challenging especially after reperfusion of the liver graft. Insulin dose to treat postreperfusion hyperglycemia is retrospectively analyzed using historical data. The proposed dose then is prospectively applied to the patients to assess the adequacy of the insulin dose.

Hyperglycemia is common during liver transplantation ,especially after graft reperfusion. Response to insulin is frequently unpredictable during postreperfusion period with no consensus or guidelines on glycemic control. The primary aim of this mixed retrospective/prospective study is to investigate the optimal insulin dose to treat hyperglycemia during the postreperfusion period of liver transplantation.

In the retrospective study, adult liver recipients (>18 years old) who underwent liver transplantation between 2004 and 2016 are reviewed. Delta glucose is the primary outcome variable defined as the difference in blood glucose levels before and after insulin administration. The relationship between the insulin dose and delta glucose is analyzed with a linear mixed effects analysis to find the optimal insulin dose to treat postreperfusion hyperglycemia.

In the prospective trial, the proposed insulin dose is administered to the patient who showed hyperglycemia after graft reperfusion. The frequency and magnitude of glucose reduction is the primary outcome. The secondary outcome is the incidence and degree of hypoglycemia.

Inclusion Criteria:

• Liver recipients who showed hyperglycemia (blood glucose >180mg/dL) after reperfusion of liver graft.

Exclusion Criteria:

• pediatric patients