Standard treatment for renal stones of more than 2cm size is PCNL(standard/mini). the objective of our study is to share of experience of a large series of 1500 consecutive cases of mini PCNL.

This is retrospective review of 1500 cases of Mini PCNL performed from September 2022 to December 2024. All patients admitted through out door clinic of Urology department . Non contrast CT KUB was performed on every patient. After written and Informed consent all patients underwent Mini PCNL in prone postion. Karl Storz 12 fr nepheroscope and swiss pneumatic lithoclast was used. Stones fragments were removed via water pressure pump. A 6/4fr Double J stent was passed at the end of the procedure, removed on 14 post op day once stone was cleared on Xray KUB/CT KUB.

The mean age was 35.5 ± 12 years, with a male-to-female ratio of 2.5:1. The mean stone size was 18.2 ± 5.5 mm, with 40% located in the lower pole, 10% in the upper pole, 30% in the middle pole, and 20% in the renal pelvis. The average operative time was 58.3 ± 18.2 minutes. Average blood loss was150ml ± 60 mL. The stone-free rate was 91.5%. The average hospital stay was 36 ± 8.5 hours. Analgesic requirements were low, with 30% of patients requiring pain medication. overall Complications rate was 15.4% while most of the complications were grade I and II type according to Clavien-Dindo classification. including bleeding requiring transfusion (3%), fever in (12%), urinary tract infection (UTI) (8.4%), and sepsis (5%) all were managed conservatively. PCS injury occurred in 0.5% cases managed with DJ/nephrostomy. . Angioembolization for bleeding vessel was required in 0.3% cases. only one patient required nephrectomy for life threatening hematuria.

The mean stone size was 18.2 ± 5.5 mm, with 40% located in the lower pole, 10% in the upper pole, 30% in the middle pole, and 20% in the renal pelvis. The average operative time was 58.3 ± 18.2 minutes. Average blood loss was150ml ± 60 mL. The stone-free rate was 91.5%. The average hospital stay was 36 ± 8.5 hours. Analgesic requirements were low, with 30% of patients requiring pain medication. overall Complications rate was 15.4% while most of the complications were grade I and II type according to Clavien-Dindo classification. including bleeding requiring transfusion (3%), fever in (12%), urinary tract infection (UTI) (8.4%), and sepsis (5%) all were managed conservatively. PCS injury occurred in 0.5% cases managed with DJ/nephrostomy. . Angioembolization for bleeding vessel was required in 0.3% cases. only one patient required nephrectomy for life threatening hematuria.

Our study Concluded that Mini PCNL is highly effective with  stone free rate of more than 90%, less operative time and shorter hospital stay and reduced complications rate. our team is now more comfortable with mini PCNL as compared to Standard PCNL. most of the cases are performed in single tract and stone fragments retrieval is extremely easy via water pressure pump.