Success Factors of Extracorporeal Shock Wave Lithotripsy ESWL for Renal & Ureteric Calculi in AdultReport as inadecuate




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The purpose of this study was to define factors that have a significant impact on the stone-free rate after ESWL. Methods: A total of 417 patients harboring renal or ureteral stones underwent extracorporeal shock wave lithotripsy ESWL between October 2008 and July 2012. Eighty five patients were lost on follow up. The remaining n = 332. All patients were >18 yr of age. Siemens and SLX-F2 electromagnetic machines were used to impart shock waves. Patients were stratified according to localization pelvic, calyceal, or ureteral stones and stone size up to 10 mm, 10 - 20 mm, and >20 mm. Result: The overall success rate was 251-332 75.6% achieve stone free status. Repeated ESWL sessions were needed in 258 61.9%. Of eleven variables were studied including age, sex, side, location pelvic, calyx, ureter, ureteric stent, previous renal surgery, stone size, number of shock waves, opacity of stone, renal system state, and type of lithotripter, three variables were significantly affect the success rate namely stone size, number of shock waves and location of stone. Conclusions: ESWL remains one of the most commonly utilized treatments for patients with upper urinary tract calculi; Stone diameter, location, and number of shock waves, are the most important predictors determining stone clearance after ESWL of renal and ureteric calculi. To optimize treatment outcomes with ESWL the presence of treating urologist is essential to optimize the final result.

KEYWORDS

ESWL; Renal Stone; Ureteric Stone; Success Factors

Cite this paper

Abid, A. 2014 Success Factors of Extracorporeal Shock Wave Lithotripsy ESWL for Renal & Ureteric Calculi in Adult. Open Journal of Urology, 4, 26-32. doi: 10.4236-oju.2014.43005.





Author: Ammar Fadil Abid

Source: http://www.scirp.org/



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