冲击波碎石机的体外比较

In vitro comparison of shock wave lithotripsy machines.

作者信息

Teichman J M, Portis A J, Cecconi P P, Bub W L, Endicott R C, Denes B, Pearle M S, Clayman R V

机构信息

Division of Urology, University of Texas Health Science Center, San Antonio and Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

出版信息

J Urol. 2000 Oct;164(4):1259-64.

PMID:10992376

Abstract

PURPOSE

We tested the hypothesis that shock wave lithotripsy machines vary in the ability to fragment stones to small size.

MATERIALS AND METHODS

Calcium oxalate monohydrate, calcium hydrogen phosphate dihydrate, cystine and magnesium ammonium phosphate hexahydrate calculi were fragmented in vitro with the 22 kV. Dornier HM3, section sign 20 kV. Storz Modulith SLX, parallel, 15.6 kV. Siemens Lithostar C, paragraph sign 24 kV. Medstone STS-T,** 26 kV. HealthTronics LithoTron 160,daggerdagger 20 kV. Dornier Doli section sign and 22.5 kV. Medispec Econolithdouble daggerdouble dagger lithotriptors. Stones were given 500 or 2,000 shocks, or the Food and Drug Administration limit. Post-lithotripsy fragment size was characterized using sequential sieves and compared.

RESULTS

Stone mass was statistically similar in the cohorts (p >0.94). Fragment size decreased as the number of shocks increased when the machine and stone composition were constant. Magnesium ammonium phosphate hexahydrate calculi were completely fragmented by all devices. At Food and Drug Administration treatment limits the mean incidence per device of calcium hydrogen phosphate dihydrate, calcium oxalate monohydrate, cystine and magnesium ammonium phosphate hexahydrate stones rendered into fragments greater than 2 mm. was 0% for the HM3, Modulith SLX and Lithostar C, 10% for the STS-T, 3% for the LithoTron 160, 29% for the Doli and 18% for the Econolith (p = 0. 04); 0% for the HM3, Modulith SLX, Lithostar C, STS-T and LithoTron 160, 4% for the Doli and 9% for the Econolith (p = 0.15); 1% for the HM3, 0% for the Modulith SLX, 1% for the Lithostar C, 10% for the STS-T, 14% for the LithoTron 160, 3% for the Doli and 9% for the Econolith (p = 0.44); and 1% for the HM3, 0% for the Modulith SLX, 1% for the Lithostar C, 10% for the STS-T, 14% for the LithoTron 160, 3% for the Doli and 9% for the Econolith (p = 0.44), respectively.

CONCLUSIONS

Shock wave lithotriptors vary in fragmentation ability. The HM3, Modulith SLX and Lithostar C machines yield smaller fragments than other machines.

摘要

目的

我们检验了以下假设，即冲击波碎石机在将结石碎至小尺寸的能力方面存在差异。

材料与方法

用22 kV的多尼尔HM3、20 kV的施乐辉Modulith SLX、15.6 kV的西门子Lithostar C、24 kV的美敦力Medstone STS-T、26 kV的HealthTronics LithoTron 160、22.5 kV的多尼尔Doli以及美迪斯派Econolith碎石机在体外破碎一水合草酸钙、二水合磷酸氢钙、胱氨酸和六水合磷酸镁铵结石。结石接受500次或2000次冲击，或食品药品监督管理局规定的极限冲击次数。使用连续筛网对碎石后的碎片尺寸进行表征并比较。

结果

各队列中的结石质量在统计学上相似（p>0.94）。当机器和结石成分不变时，随着冲击次数增加，碎片尺寸减小。所有设备均能将六水合磷酸镁铵结石完全破碎。在食品药品监督管理局规定的治疗极限下，对于二水合磷酸氢钙、一水合草酸钙、胱氨酸和六水合磷酸镁铵结石，碎成大于2 mm碎片的每个设备的平均发生率，多尼尔HM3、施乐辉Modulith SLX和西门子Lithostar C为0%，美敦力Medstone STS-T为10%，HealthTronics LithoTron 160为3%，多尼尔Doli为29%，美迪斯派Econolith为18%（p = 0.04）；多尼尔HM3、施乐辉Modulith SLX、西门子Lithostar C、美敦力Medstone STS-T和HealthTronics LithoTron 160为0%，多尼尔Doli为4%，美迪斯派Econolith为9%（p = 0.15）；多尼尔HM3为1%，施乐辉Modulith SLX为0%，西门子Lithostar C为1%，美敦力Medstone STS-T为10%，HealthTronics LithoTron 160为14%，多尼尔Doli为3%，美迪斯派Econolith为9%（p = 0.44）；以及多尼尔HM3为1%，施乐辉Modulith SLX为0%，西门子Lithostar C为1%，美敦力Medstone STS-T为10%，HealthTronics LithoTron 160为14%，多尼尔Doli为3%，美迪斯派Econolith为9%（p = 0.44）。