Reporting the Impact of Pelvicalyceal System (PCS) Anatomy on Clinical Outcomes in Retrograde Intrarenal Surgery (RIRS) Studies: Can We Do Better? – Methodological Review from the Section of EAU Endourology

• DOI: 10.5152/tud.2025.25032
• Publication Date: 2025-05-22T10:48:44Z
• Authors: Ali Talyshinskii; ; ; Yerkebulan Mukham...; ; Ulanbek Zhanbyrbe...; ; Lazaros Tzelves; ; ; Patrick Juliebø-J...; ; Theodoros Tokas; ; ; Giorgio Bozzini; ; ; Wissam Kamal; ; Bhaskar Kumar Somani
• Keywords: Section (typography)

To analyze available randomized clinical trials (RCTs) comparing retrograde intrarenal surgery (RIRS) with other modalities for urinary stone treatment to determine the extent of pelvicalyceal system (PCS) anatomy between patients. In December 2024, a search was conducted in databases and limited publications that describe comparisons experimental control groups context RIRS stones only kidney (PCS). Only RCTs without publication date restriction were included due their highest level evidence hierarchy primary research. The parameters used selected studies analyzed compare differences groups, focusing on PCS anatomy. final analysis 27 from 2421 articles. presence and/or degree hydronephrosis 8 studies. Direct morphometric measurements compared 4 focused lower pole only, namely infundibulopelvic angle, infundibular length, width. Features such as position renal pelvis relation parenchyma (intrarenal, extrarenal), number orientation calyces, well existing classifications not or used. This review shows gaps literature while assessing reporting RIRS. Unless mention these anatomical factors excluding certain patients, it is difficult outcomes