Predictive factors for success after supine percutaneous nephrolithotomy: an analysis of 961 patients

Abstract

Several parameters may affect the stone-free rate such as the stone size, density and complexity, the anatomical variations, and the patient profile (e.g., body mass index [BMI] and comorbidities). Recent reports suggest that greater sensitivity and specificity make computed tomography (CT) the best tool to evaluate success [8][9][10][11] .To address this knowledge, we conducted a study to define predictors of stone-free rate after PCNL in the supine position in a large series of patients, evaluated by CT scan. METHODSA retrospective analysis of prospectively collected data was performed including all consecutive adult patients who underwent supine PCNL between June 2011 and October 2019 in a single center. Informed consent was obtained from patients preoperatively, and the study protocol was approved by the local ethics committee (institutional review board number: 8258117.8.0000.0091).