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Value of intravenous urography before shockwave lithotripsy in the treatment of renal calculi: a randomized study
1Urology Department, Alexandria University, Alexandria, Egypt.
Purpose:
To study the impact of preprocedure intravenous urography (IVU) on the outcome of SWL for renal stones.
Patients And Methods:
Two hundred patients with radiopaque renal stones
Results:
The success rate (81.6% in group 1 v 77.4% in group 2), stone-free rate (65.5% v 62.3%), re-treatment rate (59.8% v 69.9%), auxiliary-procedure rate (6.9% v 5.4%), and complication rate (11.5% v 14%) were similar in the two groups.
Conclusion:
It is not necessary to obtain an IVU for patients who have renal calculi with no or minimal back pressure before scheduling them for SWL, thus minimizing the cost, avoiding exposure to contrast medium, and reducing radiation exposure.
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