Ultra Mini PCNL (UMP) – For Management of Renal Stone

Abstract

Background: Renal stones are a common urological condition requiring advanced management strategies. Ultra Mini PCNL (UMP), utilizing an 11–14 Fr tract, offers an effective, minimally invasive solution for moderate-sized renal stones, reducing complications like bleeding and recovery time compared to standard PCNL. Objectives: The general objective of this study was to evaluate the effectiveness, safety, and clinical outcomes of Ultra Mini Percutaneous Nephrolithotomy (UMP) in the management of renal stones. Methods and Materials: This prospective observational study was conducted at Square Hospital, Dhaka, Bangladesh from January 2017 to December 2022, involving 94 patients aged 25–65 years undergoing Ultra Mini PCNL (UMP) for renal stones. Patients were selected using convenience sampling. Data were collected through clinical evaluations, imaging studies, and intraoperative findings. Descriptive and inferential statistics were performed using SPSS (v23). Ethical approval was obtained, and all participants provided written informed consent. Result: The study of 94 participants (66.0% male, 34.0% female) had a mean age of 42.5 years (SD: 12.3), with the largest age group being 36–45 years (31.9%). The most affected anatomical site was the lower calyx (37.5%), followed by the upper calyx (30.2%). Calcium oxalate stones were predominant (52.1%), and flank pain was the most reported symptom (31.1%). At the 4-week follow-up, all patients (100%) were stone-free, with a low complication rate (3.2% sepsis, 5.3% fever). Conclusion: UMP is safe and effective method for the management of selected cases of renal stone. Hospital stay is short, patient can go normal activity faster. It needs expertise