第3世代体外衝撃波結石破砕装置THERASONICによる尿路結石の治療経験

概要

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The THERASONIC lithotripsy treatment system, a newly developed piezoelectric lithotripter, uses both an X-ray and ultrasound system and enables stone localization effective. Treatment of urinary stones with THERASONIC was begun in June, 1989 and 57 treatments have already been performed on 38 patients. Successful treatment, defined as either stone free or with a residual stone less than 4 mm in diameter on flat X-ray film, was accomplished in 95% of the renal stones and over 50% of the ureteral stones. The overall success rate was 74%. Blood pressure and laboratory values did not show any significant change during or after the treatment. No major complication has been observed except for one perirenal hematoma which was resolved with conservative therapy.