Kim S C, Moon Y T
Department of Urology, College of Medicine, Chung-Ang University, Seoul, Korea.
J Endourol. 1997 Apr;11(2):103-11. doi: 10.1089/end.1997.11.103.
A new piezoelectric lithotripter, the EDAP LT02, differs from the earlier LT01 in two important respects: a stone-localization system consisting of ultrasound and fluoroscopy and more energy per shockwave. The results of SWL monotherapy with the LT02 in 1363 patients and with the LT01 in 1586 patients who completed SWL treatment were compared. All of the stones could be localized by ultrasound (62.7%), fluoroscopy (0.3%), or both (37%) on the LT02, but the renal stones of three patients who had a history of open renal surgery and 29 upper ureteral stones could not be localized by real-time ultrasound on the LT01. The success rate (stone free or residual fragments < 4 mm in diameter) with the LT02 and LT01 according to stone location was not significantly different: 86.4% and 88.5%, respectively, for renal stones, 89.1% and 88.9% for ureteral stones, and 87.0% and 89.0% overall. The overall stone-free rate of LT02 and LT01 SWL was 78.8% and 87.9%, respectively. For mid-ureteral stones, the success rate with LT02 SWL was 76.8%. (Such stones were not an indication for LT01 SWL.) The mean number of treatment sessions with the LT02 (1.9) was much less (P < 0.001) than with the LT01 (3.3). The retreatment rates of LT02 and LT01 SWL were 68.2% and 198.2%, and the auxiliary treatment rates were 3.4% and 6.3%, respectively. Thus, the efficiency quotient was 45.9% in LT02 SWL, which was much higher than the 28.9% of the LT01. There was no significant difference in the occurrence of complications between LT02 and LT01 SWL. Therefore, LT02 piezoelectric lithotripsy is more efficient than the LT01 in localizing stones and can lessen the number of treatment sessions.
一种新型的压电碎石机EDAP LT02，在两个重要方面与早期的LT01不同：一个由超声和荧光透视组成的结石定位系统以及每次冲击波具有更多能量。对1363例使用LT02进行体外冲击波碎石（SWL）单疗法的患者以及1586例完成SWL治疗的使用LT01的患者的结果进行了比较。在LT02上，所有结石均可通过超声（62.7%）、荧光透视（0.3%）或两者（37%）进行定位，但有3例有开放性肾脏手术史患者的肾结石以及29例上输尿管结石在LT01上无法通过实时超声定位。根据结石位置，LT02和LT01的成功率（结石清除或残留碎片直径<4mm）无显著差异：肾结石分别为86.4%和88.5%，输尿管结石分别为89.1%和88.9%，总体分别为87.0%和89.0%。LT02和LT01 SWL的总体结石清除率分别为78.8%和87.9%。对于输尿管中段结石，LT02 SWL的成功率为76.8%。（此类结石并非LT01 SWL的适应症。）LT02的平均治疗次数（1.9次）比LT01（3.3次）少得多（P<0.001）。LT02和LT01 SWL的再次治疗率分别为68.2%和198.2%，辅助治疗率分别为3.4%和6.3%。因此，LT02 SWL的效率商为45.9%，远高于LT01的28.9%。LT02和LT01 SWL并发症的发生率无显著差异。因此，LT02压电碎石术在结石定位方面比LT01更有效，并且可以减少治疗次数。
