Seven patients with bladder stones underwent percutaeous ultrasonic lithotripsy, suprapubically. The stones ranged from 1.7 to 4.0 cm (mean 2.3 cm) in diameter. Mean treatment time was 49 minutes with a range of 10 to 120 minutes. The stone free
rate
was 100%. Among 7 patients 3 had unclear causes for bladder stone formation but 4 associated with etiologic disorders; BPH in 1, neurokgenic bladder after spinal injury in 1, anterior urethral stricture in 1 and foreign body (paraffin) in bladder
in 1.
Under the intravenous narcotics and local anesthesia, all 7 patients well tolerated to pain but k6 complained a minimal voiding sense during the procedure. There was no complication such as bladder injury, blkeeding or severe hematuna.
Therefore, percutaneous suprapubic ultrasonic iithotripsy is considered to be a simple,d asfe and efficient outpatient procebdure for the treatment of bladder stone.
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