Understanding ureteroscopy complications according to modified Clavien classification system Authors Usama Bin Shaheen Sindh Institute of Urology and Transplantation, Karachi, Pakistan Naveed Ahmed Mahar Sindh Institute of Urology and Transplantation, Karachi, Pakistan Nazish Mughal Sindh Institute of Urology and Transplantation, Karachi, Pakistan Harris Hassan Qureshi Sindh Institute of Urology and Transplantation, Karachi, Pakistan Naseem Akhter Sindh Institute of Urology and Transplantation, Karachi, Pakistan Sara Rasheed Kalwar Sindh Institute of Urology and Transplantation, Karachi, Pakistan DOI: https://doi.org/10.47391/JPMA.9250%20 Keywords: Ureteroscopy, Modified Clavien classification system, Ureteric calculi, ESWL Abstract Objective: To determine the complications of ureteric stone treatment with semi-rigid uretero-renoscopy in accordance with the modified Clavien classification system. Method: The descriptive, prospective study was conducted at the Department of Urology, Sindh Institute of Urology and Transplantation, Karachi, from June 30, 2020, to December 29, 2021, and comprised patients of either gender aged 18-70 years having ureteric stones. All patients were subjected to ureterorenoscopy using a semi-rigid ureteroscope under general anaesthesia. The patients were followed up for 2 months. All complications were noted and graded in line with the Modified Clavien Complication System. Ultrasound and X-ray were used to determine the stone-free rate. Data was analysed using SPSS 23. Results: Of the 414 patients, 304(73.4%) were males and 110(26.5%) were females. The overall mean age was 40.22±13.10 years. There were 106(25.6%) proximal, 134(32.3%) middle, and 174(42%) distal ureteric stones. Stent placement was done in 56(13.5%) cases. There were 260(62.8%) patients with no complication, 90(21.7%) with grade I complications, 34(8.2%) with grade II complications, 10(2.4%) with grade IIIa, 8(1.9%) with grade IIIb, and 12 (2.9%) with grade IVa complications. Conclusion: Uretero-renoscopy was found to be a safe procedure, as it had minimal associated complications with optimal stone clearance and great dexterity. The Modified Clavien classification system was found to be an easy way to classify surgical complications of uretero-renoscopy. Key Words: Ureteroscopy, Modified Clavien classification system, Ureteric calculi, ESWL. Downloads Full Text Article Published 2024-02-11 How to Cite Bin Shaheen, U., Ahmed Mahar, N., Mughal, N., Qureshi, H. H., Akhter, N., & Kalwar, S. R. (2024). Understanding ureteroscopy complications according to modified Clavien classification system. Journal of the Pakistan Medical Association, 74(3), 485–488. https://doi.org/10.47391/JPMA.9250 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 74 No. 3 (2024): MARCH Section RESEARCH ARTICLE License Copyright (c) 2020 Journal of the Pakistan Medical Association This work is licensed under a Creative Commons Attribution 4.0 International License.