Staritz M, Rambow A, Mildenberger P, Goebel M, Scherfe T, Grosse A, Junginger T, Hohenfellner R, Thelen M, Meyer zum Büschenfelde K H
I. Medical Department, University of Mainz, FRG.
Eur J Clin Invest. 1989 Apr;19(2):142-5. doi: 10.1111/j.1365-2362.1989.tb00208.x.
First generation shock wave sources have been proved to disintegrate gallstones effectively, but they require the immersion of the patient's body in a tank of water. A recently developed second generation shock wave source (Siemens-Lithostar, Erlangen, FRG) generates shock waves electromagnetically. It presents several novel features. In particular the waterbath can be omitted and due to lower shock wave pressure general anaesthesia is not required. In vitro studies showed that 36 out of 38 gallstones (11-30 mm in diameter) could be disintegrated. Two concrements resisting lithotripsy were pure white cholesterol stones. Independent of shape, size, and composition (cholesterol or pigment) the maximum diameter of remaining fragments after lithotripsy was between 1 and 8 mm. For sufficient disintegration precise focusing (+/- 1 cm) of the stones and maximum power of the shock wave generator were required.
第一代冲击波源已被证明能有效分解胆结石，但需要将患者身体浸入水箱中。最近开发的第二代冲击波源（西门子 - 碎石星，德国埃尔朗根）通过电磁方式产生冲击波。它具有几个新颖的特点。特别是可以省略水浴，并且由于冲击波压力较低，不需要全身麻醉。体外研究表明，38颗胆结石（直径11 - 30毫米）中有36颗可以被分解。两颗抵抗碎石术的结石是纯白色胆固醇结石。无论结石的形状、大小和成分（胆固醇或色素）如何，碎石术后剩余碎片的最大直径在1至8毫米之间。为了实现充分分解，需要对结石进行精确聚焦（±1厘米）并使冲击波发生器达到最大功率。
