Extracorporeal Shock Wave Lithotripsy;

Abstract

Background: Urolithiasis is a common ailment that costs billions of Dollars everyyear. Recurrent urinary tract obstruction or urolithiasis may stimulate the fibrogenic flow, whichis responsible for the definite functional loss of renal parenchyma. In the few past years, themanagement of urinary calculi undertook a remarkable modification. Open surgery for stonesis nearly replaced by minimal or non-invasive operative procedures like ureterorenoscopy,percutaneous nephrolitholapaxy and extracorporeal shock wave lithotripsy (ESWL). StudyDesign: Randomized Controlled Trial. Setting: Department of Urology Services HospitalLahore. Duration of Study: 1st January -30th December 2016. Material and methods: Thecomparative study of 60 cases through Non probability convenient sampling was conducted toevaluate the outcome of ESWL in patients with single lithiasis of lower pole calyx with differentinfundibulopelvic angles as measured on pre-treatment IVU. Results: The mean age of all thepatients was 33.70±10.72 years. Out of 60 Patients 32(53.3%) were males while 28(46.7%)were females with 1.14 male to female ratio. In group A, the mean LIPA was 78.83±4.71o andin group B, was 100.53±5.73o. The overall mean LIPA of the patients was 89.68±12.11o.Stoneclearance was noted in 39 (65%) patients. 15 patients (38.46%) and 24 patients (61.53%) ingroup A and B respectively. p-value=0.015. After ESWL stone clearance was more in patientshaving IPA ≥ 90°as compared to IPA 70-90o. Conclusion: Stone clearance is significantlyhigher with IPA>90o as compared to IPA70-90o.In future now we are able to implement the useof IPA>90o instead of using <90o that is more successful in achieving stone clearance.