单中心比较两种体外冲击波碎石机（电磁式和液电式）治疗上尿路结石的疗效。
Comparison of electrohydraulic and electromagnetic extracorporeal shock wave lithotriptors for upper urinary tract stones in a single center.
机构信息
Department of Urology, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd, Zhongshan Dist, Taipei, 104, Taiwan.
School of Medicine, MacKay Medical College, New Taipei City, Taiwan.
出版信息
World J Urol. 2019 May;37(5):931-935. doi: 10.1007/s00345-018-2464-7. Epub 2018 Aug 28.
PURPOSE
To compare the efficacy and outcomes of shock wave lithotripsy (SWL) for upper urinary tract stones with an electrohydraulic (EH) and an electromagnetic (EM) lithotriptor in a single center.
METHODS
The medical records of 272 patients with upper urinary tract stones ≤ 2 cm in size who underwent SWL with either the Medispec E3000 EH lithotriptor (179 cases) or the Medispec EM1000 EM lithotriptor (93 cases) were reviewed. The demographic data, stone parameters, stone-free rates, and retreatment rates were analyzed.
RESULTS
The EH group had a higher stone-free rate (53.6 vs. 30.1%, p < 0.001) and a lower retreatment rate (32.4 vs. 61.2%, p < 0.001) for renal and upper third ureteral stones than the EM group. The stone-free rates for renal stones < 1 cm (55.5 vs. 32.2%, p = 0.045), ureteral stones < 1 cm (64.5 vs. 42.1%, p = 0.028), and renal stones ≥ 1 cm (43.1 vs. 0%, p = 0.03) were higher in the EH group. Two patients in the EH group had a renal hematoma needing hospitalization after SWL. There were no complications in the EM group.
CONCLUSIONS
The Medispec E3000 EH lithotriptor had higher stone-free rates and lower retreatment rates than the Medispec EM1000 EM lithotriptor for renal stones < 2 cm and ureteral stones < 1 cm. Complications were rare.
目的
比较在单一中心使用电磁式（EM）碎石机和液电式（EH）碎石机治疗上尿路结石的疗效和结果。
方法
回顾性分析 272 例接受上尿路结石（大小≤2cm）体外冲击波碎石术（SWL）治疗的患者的病历资料，其中 179 例使用 Medispec E3000 EH 碎石机，93 例使用 Medispec EM1000 EM 碎石机。分析患者的人口统计学资料、结石参数、结石清除率和再次治疗率。
结果
EH 组肾结石和上段输尿管结石的结石清除率（53.6%比 30.1%，p<0.001）和再次治疗率（32.4%比 61.2%，p<0.001）均高于 EM 组。肾结石<1cm（55.5%比 32.2%，p=0.045）、输尿管结石<1cm（64.5%比 42.1%，p=0.028）和肾结石≥1cm（43.1%比 0%，p=0.03）的结石清除率在 EH 组更高。EH 组有 2 例患者在 SWL 后出现肾血肿需住院治疗。EM 组无并发症发生。
结论
对于<2cm 的肾结石和<1cm 的输尿管结石，Medispec E3000 EH 碎石机的结石清除率和再次治疗率均高于 Medispec EM1000 EM 碎石机，并发症少见。
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