Saudi Journal of Kidney Diseases and Transplantation

ORIGINAL ARTICLE
Year
: 2010  |  Volume : 21  |  Issue : 4  |  Page : 660--665

Factors affecting urinary calculi treatment by extracorporeal shock wave lithotripsy


Emad Tarawneh, Zeyad Awad, Audy Hani, Azmi Amin Haroun, Azmi Hadidy, Waleed Mahafza, Osama Samarah 
 Department of Diagnostic Radiology and Urological Surgery, Jordan University Hospital, Amman, Jordan

Correspondence Address:
Emad Tarawneh
Jordan University, P.O. Box 13200, Amman 11942
Jordan

Extracorporeal Shock Wave Lithotripsy (ESWL) is still the treatment of choice for most renal and upper ureteric stones; however the outcome depends on multiple factors. The objective of this study was to investigate the effects of stone density, as measured by Hounsfield Units (H.U) by non-contrast Computerized Tomography (CT), stone size and stone location on ESWL treatment outcome of urinary calculi in Jordanian patients. 65 patients underwent clinical, biochemical and radiological assessments followed by ESWL treatment. Statistical analyses including chi-square, analysis of variance (ANOVA), correlation, regression were performed for statistical significance between ESWL treatment, stone fragmentation and stone density, size and location in the renal pelvis. ESWL success rate was high (94%) for low density stones (< 500 Hounsfield units). In general CT densities of 750 Hounsfield units or less were almost always successfully treated by ESWL. An inverse association between ESWL treatment outcome and stone size was also documented. CT stone density and stone size combined account for nearly 73% of the variation in the number of shock waves required to attain fragmentation. Stones located in lower calyceal area had less success rates. In conclusion, stones with higher density, large size and lower location may better be managed by percutaneous nephrolithotomy.


How to cite this article:
Tarawneh E, Awad Z, Hani A, Haroun AA, Hadidy A, Mahafza W, Samarah O. Factors affecting urinary calculi treatment by extracorporeal shock wave lithotripsy.Saudi J Kidney Dis Transpl 2010;21:660-665


How to cite this URL:
Tarawneh E, Awad Z, Hani A, Haroun AA, Hadidy A, Mahafza W, Samarah O. Factors affecting urinary calculi treatment by extracorporeal shock wave lithotripsy. Saudi J Kidney Dis Transpl [serial online] 2010 [cited 2022 Dec 2 ];21:660-665
Available from: https://www.sjkdt.org/article.asp?issn=1319-2442;year=2010;volume=21;issue=4;spage=660;epage=665;aulast=Tarawneh;type=0