INITIAL SINGLE CENTER EXPERIENCE OF PERCUTANEOUS NEPHROLITHOTOMY FOR RENAL STONES LARGER THAN 2.5 CM
Objectives: To share our initial experience of PNL in the department of urology lady reading hospital Peshawar in terms
of stone clearance and complications rate.
Methodology: This is a descriptive study conducted during the period from December 2015 to June 2016. Using non
probability convenient sampling. Total 30 patients with renal stones of more than 2.5cm were selected for PNL. Data
was analyzed on SPSS.
Results: In a cohort of 30 patients (22 male and 8 female) PNL was performed. The mean age was 39.5 (13 – 57) years.
The mean operative time was 85.6 (60 – 200) minutes. The mean stone size was 3 (2.6 – 5) cm. There were 9 staghorn
stones and 21 non staghorn stones. PNL was accomplished via a single access tract thru lower pole calyx in 29 cases,
while only one case was performed via a single access tract thru middle calyx. The stone free rate was 95%. Mean
hospital stay was 3 days. In only 6% (2/30) cases postoperative bleeding was observed necessitating blood transfusion.
Similarly 6% (2/30) cases developed fever in the immediate postoperative period which was then subsided with
parenteral antibiotics according to urine culture and sensitivity. No other complication was observed in our patients.
Conclusion: PNL is a safe and effective procedure associated with less morbidity, shorter hospital stay and is cost
Key words: Percutaneous nephrolithotomy (PNL), Renal stones, Effectiveness, Complications.