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Muhammad Tayyab Naeem
Abdul Rauf
Fazal Ur Rehman Khan
Abdul Razaq
Muhammad Yahya Hasan
Muhammad Asif


Guys scoring system, PCNL, post PCNL complications



Renal calculi larger than 2 cm can be removed with the solidified, minimally invasive treatment known as percutaneous nephrolithotomy (PCNL).PCNL is not free of complications.Guys scoring System(GSS) was devised to quantify these complications. This score uses information from computed tomography (CT), intravenous urography, plain radiography, and ultrasound to classify individuals depending on the complexity of the stone and the pelvicaliceal architecture.


To analyze the intraoperative and postoperative complications of PCNL using Guys scoring system.


This descriptive study of 52 patients were conducted at sheikh zayed hospital Lahore.Guys score of patients with nephrolithiasis  were calculated using plain CT scan and then patients were stratified as per above GSS.PCNL was done on each patient and then various intraoperative and postoperative complications were noted in each GSS group.


Mean age of included patients were 51.2± 10.31 years. No of patients in Guys 1,Guys 2,Gusy 3 and Guys 4 were 14,12,11 and 15 respectively. Male to female ratio was 2:1.Mean BMI was 25.31± 4.68.Mean stone size was 35.1 ±3.31. There was a statistically significant differences in each Guy’s scoring system group regarding mean operative time,blood transfusion,immediate stone free rate and residual stone and all of them showed highest values at GSS 4. No statistically significant difference was found inbetween different groups regarding hospital stay and sepsis.


 GSS is an effective tool in predicting intraoperative and post-operative complication following PCNL.


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