Laparoscopic Donor Nephrectomy Score, a New Scoring System for Preoperative Prediction of Difficulty of Laparoscopic Donor Nephrectomy

The goal of this multicenter observational study is to develope and validate a new scoring system for preoperative prediction of difficulty of Laparoscopic Donor Nephrectomy. Healthy living kidney donors will be enrolled. The main questions it aims to answer are: 1) can the investigators predict difficulty of the operation ? 2) Can the investigators score difficulty based on this new scoring system? Difficulty of LDN will be graded by the operating surgeon at the end of the operation based on intraoperative predefined parameters. All operations will be blindly scored by the operating surgeon, while one radiologist will blindly review all preoperative CT scans. LAPDOCTOR scores will be compared with the degrees of difficulty assigned by the operating surgeon to investigate the match rate.