Critical appraisal of predictive tools to assess the difficulty of laparoscopic liver resection: a systematic review

BackgroundObjective assessment of the difficulty of laparoscopic liver resection (LLR) preoperatively is key in improving its uptake. Difficulty scores are proposed but are not used routinely in practice. We identified and appraised predictive models to estimate LLR difficulty.MethodsWe systematically searched the literature for tools predicting LLR difficulty. Two independent reviewers selected studies, abstracted data and assessed …