Determining Risk Factors of Postoperative Delirium in Patients Undergoing Liver Transplantation Letter

摘要

In the recent article of Chen et al1 determining the risk factors for postoperative delirium (POD) in patients undergoing liver transplantation, the multivariate logistic regression analysis showed that preoperative ammonia ≥46 μmol/L, Model for End-Stage Liver Disease score ≥15, hepatic encephalopathy, anhepatic period, and aspartate aminotransferase at the first postoperative day were the independent risk factors for POD. The findings of this study have potential clinical implications, but there are several issues in methodology that need further clarification.