Abstract
Sixty-one patients with vesical stones (38 with underlying obstructive conditions and 23 unobstructed) underwent SWL using ultrasound targeting under no regional or general anesthesia. A foley catheter was not routinely employed, and the bladder was filled in a physiologic way. Complete resolution was obtained in 47 patients (78%); in particular, 66% of the obstructed patients and 96% of the unobstructed patients became stone free in one to four SWL sessions. The average number of sessions for all patients was 1.28+/-0.63. Fragments were completely evacuated also in some patients with severe obstruction and in all three patients with neurogenic bladder dysfunction. The size and number of stones did not seem to play a limiting role in SWL effectiveness: the principal limiting factor was the hardness of the stone. No severe complications occurred. However, in six patients (10%), some fragments stopped in the urethra, causing acute urine retention, and endoscopic extraction was necessary. Echo-guided SWL of bladder stones is safe and highly effective in nonobstructed patients and can be considered the elective monotherapy method. In obstructed patients, SWL efficacy is lower, but the method may be suggested for patients who refuse...Continue Reading
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