Abstract

Enhanced recovery after surgery (ERAS) is a fascinating new approach to the perioperative care of liver transplantation (LT). Being an already established pathway in other surgical fields, ERAS in LT (ERALT) is moving its first steps into a complex scenario. Material and MethodsIn this study, using an Italian multicentre database dedicated to LT (Petalo Trapianto Fegato), we compared a group of patients who had a relatively short length of hospital stay (LHoS) after LT (12 days, 569 patients) vs a group that exceeded this LHoS (1017 patients). The main aim was to find a clinical rule to select patients who could afford safely and successfully an ERAS pathway. We used several machine learning techniques to find the best model to predict a short LHoS. We used logistic regression and Boruta random forest to select the most important features to be included in a prognostic score. ResultsAccording to our results, early after LT, an ERAS pathway might be confidently considered early after LT when the MELDNa is less than 10 or when the MELDNa is between 10 and 17 and the patient received ≤ 5 units of Packed Red Blood Cells intraoperatively (accuracy 72%, sensitivity 78%, specificity 66%, positive predictive value 78%). ConclusionThis simple clinical rule is intended to be used as a screening tool in patient selection for centres approaching ERAS in LT focusing clinical safety and efficacy, physician confidence and patients’ satisfaction.

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