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The first clinical results of “wide-focus and low-pressure” ESWL

2002; Elsevier BV; Volume: 28; Issue: 6 Linguagem: Inglês

10.1016/s0301-5629(02)00507-0

1879-291X

Wolfgang Eisenmenger, X. Du, Cheuk Bong Tang, Sihan Zhao, Yan Wang, Rong Fan, Dingwei Dai, Ma Guan, Qi An,

Laser-Plasma Interactions and Diagnostics

A clinical study of the concept "wide-focus and low-pressure" extracorporal shock-wave lithotripsy (ESWL) was performed in a scientific cooperation between the Physical Institute of the University of Stuttgart and the Xixin Medical Instruments Co. Ltd. in Wuxian-Suzhou, China. In this cooperation, self-focusing electromagnetic shock-wave generator systems from the University of Stuttgart were integrated into Xixin lithotripters and installed in seven hospitals in China. A total of 297 detailed patient protocols revealed an average of 1532 shock pulses for successful treatment with no necessity for pain medication and auxiliary measures, and a stone-free rate of 86% after a follow-up of 3 months. These results are discussed in terms of the wide-focus low-pressure conditions and the mechanism of binary fragmentation by squeezing.