To determine the relation between ureteral stone impaction and ureteral stricture formation and associated factors.
We retrospectively analyzed the medical records of all patients who underwent endoscopic ureteral stone surgery for impacted ureteral stone at three academic institutions in Turkey, United Kingdom and Spain between June 2019 and January 2022. Examined parameters included patient demographics, stone side, size and localization, time between initiation of symptoms and surgery, type of ureteroscopy (rigid/flexible), presence of nephrostomy or double-J stent prior to URS, intraoperative complications (avulsion/perforation, stone-free status, number of procedures required for stone-free status, postoperative imaging results.
A total of 41 patients whom 25 were male and 16 were female, from 3 institutions were included the study. The mean age of the patients was 48.2 ± 13.5 years. The median largest diameter of the stones was 9 mm (IQR: 8 mm). Total 14 (34.1%) patients developed ureteral strictures following ureteroscopy. There was no difference between patients who developed ureteral strictures and patients who did not developed strictures in terms of stone laterality, stone location, hydronephrosis and multiplicity, p = 0.58, p = 0.14, p = 0.79 and p = 0.31. Patients who developed ureteral strictures had a higher rate of preoperative urinary diversion such as nephrostomy or DJS, p = 0.000.
Interruption of urine passage through ureter via urinary diversion such as nephrostomy or DJS stent prior to ureteral stone surgery might lead ureteral stricture formation in the postoperative period.
Actas urologicas espanolas. 2023 Apr 20 [Epub ahead of print]
S Tonyali, A Pietropaolo, E Emiliani, M Ortac, M F Von Bargen, S Turan, M Glienke, Z Hamid, T Tailly
Servicio de Urología, Facultad de Medicina de la Universidad de Estambul, Estambul, Turkey. Electronic address: ., Servicio de Urología, Hospital Universitario Southampton NHS Trust, Southampton, United Kingdom., Servicio de Urología, Fundació Puigvert, Universidad Autónoma de Barcelona, Spain., Servicio de Urología, Facultad de Medicina de la Universidad de Estambul, Estambul, Turkey., Servicio de Urología, Centro Médico de la Universidad de Friburgo, Germany., Servicio de Urología, Escuela de Medicina Father Muller, Mangalore, India., Servicio de Urología, Hospital Universitario de Gante, Gante, Belgium.