Comparison of Post-Operative Pain Between Standard Versus Mini-Percutaneous Nephrolithotomy

khan M1, Asif M2

Research Type

Clinical

Abstract Category

Urolithiasis

Abstract 670
Open Discussion ePosters
Scientific Open Discussion Session 108
Saturday 20th September 2025
13:15 - 13:20 (ePoster Station 2)
Exhibition
Pain, other Surgery Prospective Study
1. Lady Reading Hospital Peshawar Pakistan, 2. Lady Reading Hospital Peshawar
Presenter
M

Muhammaad Asif
Lady Reading Hospital Peshawar
Links

Abstract

Hypothesis / aims of study 
Patients experience less post operative pain in mini per cutaneous nephrolithotomy as compared to standard per cutaneous nephrolithotomy. Objective of our study is to compare postoperative pain between standard vs mini percutaneous nephrolithotomy.
Study design, materials and methods 
A Comparative Cross-Sectional study was conducted  from June 9th, 2023to June 9th, 2024. A total of 140 patients with kidney stones (more than 10mm) were randomly allocated in two groups. Patients of Group A were subjected to mini PCNL(22FR tract) while group B were subjected to standard PCNL(30FR tract). Both groups were assessed post operatively to determine the intensity of pain on Visual Analogue Score (VAS).
Results 
In group A mean age was 36.3+8.5 years and in group B it was 38.9+10.1 years (p=0.096). Males in group A were 57.1% compared to 70% in group B (p=0.114). 14.5+3.7mm was mean size of stone in group A compared to 15.5+3.3mm in group B (p=0.071). The mean BMI of group A was 26.3+3.5kg/m2 compared to 26.2+3.3kg/m2 in group B (p=0.893). 14.3% in group A were diabetic compared to 17.1% in group B (p=0.642). 8.6% in group A were hypertensive compared to 11.4% in group B (p=0.573). 12.9% in group A were smokers compared to 24.3% in group B (p=0.082). On follow-up, the mean postoperative pain on the visual analogue scale in the group mPCNL group was 2.5+0.9 compared to 3.1+1.1 in the sPCNL group (p < 0.001).
Interpretation of results 
In group A mean age was 36.3+8.5 years and in group B it was 38.9+10.1 years (p=0.096). Males in group A were 57.1% compared to 70% in group B (p=0.114). 14.5+3.7mm was mean size of stone in group A compared to 15.5+3.3mm in group B (p=0.071). The mean BMI of group A was 26.3+3.5kg/m2 compared to 26.2+3.3kg/m2 in group B (p=0.893). 14.3% in group A were diabetic compared to 17.1% in group B (p=0.642). 8.6% in group A were hypertensive compared to 11.4% in group B (p=0.573). 12.9% in group A were smokers compared to 24.3% in group B (p=0.082). On follow-up, the mean postoperative pain on the visual analogue scale in the group mPCNL group was 2.5+0.9 compared to 3.1+1.1 in the sPCNL group (p < 0.001).
Concluding message 
Mini PCNL is associated with less postoperative pain than standard PCNL. We recommend, taking
into account the side effects of both procedures, more randomized control trails with larger samples size is to be conducted.
Disclosures
Funding non Clinical Trial No Subjects Human Ethics Committee IRB Lady Reading Hospital Peshawar Helsinki Yes Informed Consent Yes
14/07/2025 18:02:31