EXPERIENCE OF EXTRACORPOREAL SHOCKWAVE LITHOTRIPSY FOR KIDNEY AND UPPER URETERIC STONES BY ELECTROMAGNETIC LITHOTRIPTOR
Abstract
Background: Extracorporeal Shock Wave Lithotripsy (ESWL) is a non-invasive treatment of urinarystones which breaks them, by using externally applied, focused, high intensity acoustic pulse, intosmaller pieces so that they can pass easily through ureter. Shock wave generation, focusing, couplingand stone localisation by fluoroscope or ultrasound are the basic components of ESWL. ESWL hassome complications and is contraindicated in certain situations. The aim of this study was to evaluatethe effectiveness and safety of ESWL in kidney and upper ureteric stones by ElectromagneticLithotriptor. Methods: All adult patients with renal and upper ureteric stones having a diameter of up to1 Cm were included in the study. Basic evaluation such as history, examination, ultrasound andexcretory urography were performed. Electromagnetic lithotripsy was done and data were collected ona printed proforma from 1st January 2008 to 30th March 2009 in Institute of Kidney Diseases, Peshawar.Results: Out of a total of 625 patients 463 were male and 162 were female; 67.36% of patients werehaving renal stones, 23.84% upper ureteric and 8.8% both renal and ureteric stones. Complicationsnoted were renal colic in 9.76%, haematuria in 3.2%, steinstrasse in 2.72%, and fever in 1.12% ofpatients. The stone free rate was 89% and 7% of patients were having stone fragments <4 mm. ESWLfailed in 4% of patients. Conclusion: ESWL is a safe and effective way of treating kidney and upperureteric stones.Keywords: Extracorporeal shock wave lithotripsy (ESWL), kidney and upper ureteric stonesReferences
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