Comparison and validation of three difficulty scoring systems in laparoscopic liver surgery: a retrospective analysis on
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and Other Interventional Techniques
Comparison and validation of three difficulty scoring systems in laparoscopic liver surgery: a retrospective analysis on 300 cases Nadia Russolillo1,2 · Cecilia Maina1 · Francesco Fleres1 · Serena Langella1 · Roberto Lo Tesoriere1 · Alessandro Ferrero1 Received: 9 August 2019 / Accepted: 24 December 2019 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Background Difficulty scores (DSs) have been proposed to rate laparoscopic liver resection (LLR) technical difficulty increasing surgical safety. The aim of the study was to validate three DSs (Hasegawa, Halls and Kawaguchi) and compare their ability to predict technical difficulty and postoperative outcomes. Materials and methods All patients who underwent LLR from January 2006 to January 2019 were analyzed. Exclusion criteria were cyst fenestrations, thermal ablation, missing data for the computation of the DS and a follow-up
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