Modulith SL20を用いた腎尿管結石に対するESWLの臨床経験

Abstract

1)男27例, 女12例に施行した.2)治療回数は1回が33例, 他機種により2回目を施行したのは6例であった.砕石効果は, 84.6%であった.3) ESWL治療後21日目での排石効果は, 完全排石は37例中14例, 4 mm以下の残石が37例中18例であった.4.1 mm以上の残石は5例であった.追跡不能は2例であった.4) ESWL術中, 術直後の臨床的, 血液生化学検査において, 変動はなかった.5)有用度判定で有用は37例中24例, やや有用が13例であった

Thirty-nine patients, 27 males and 12 females with renal and ureteral stones, were treated using the Modulith SL 20 between October 1990 and January 1991. Thirty-three of the 39 cases had a single session of extracorporeal shockwave lithotripsy (ESWL) and the other six cases had two sessions. The pulverization rate of ESWL by this device was 84.6%. According to the X-rays taken 21 days after ESWL, of the 37 cases, 14 (37.8%) were stone-free, 18 (48.7%) had residual sandy stones less than 4 mm in diameter, five (13.5%) had residual stone fragments larger than 4.1 mm in diameter, and two cases were not clear. Using the criterion of cases which can be expected to have spontaneous passage, in other words, residual stones less than 4 mm in diameter, lithotripsy with the Modulith SL 20 was regarded as "effective" in 32 of the 37 cases (86.5%). As side effects of this treatment, hematuria was observed for several days after ESWL in all patients, but not other serious complications were observed. Among the 37 cases in which the grade could be evaluated the evaluation for 24 (64.9%) was "useful" and that for 13 (35.1%) "useful to some extent". Therefore, ESWL was performed very successfully.