论文部分内容阅读
对动脉狭窄经皮经管血管扩张术后的再发病例应用激光照射行PTA(PTLA)可以得到改善。作者应用Na:YAG激光非接触照射法,功率为80W,距离0.5cm,2次/秒,间隔1～2秒。激光照射血液时,为确定激光探针前端的凝血,血管内的生理盐水中置入闪光器以便血管内窥镜观察。照射前动脉近端以球囊闭塞,经激光照射后动脉狭窄部位的动脉壁变得平滑,几乎不再发生狭窄。作者施行了动脉硬化性高度狭窄的7个部位的扩张,未见复发,观察时间为8～32个月。Buerger氏病激光血管扩张术的病例少,尚难评价。但对闭塞比较短者(5cm以下)多有效。PTLA的适应证除PTA适
PTA (PTLA) can be improved by laser irradiation in patients with recurrent aortic stenosis after percutaneous transvascular tube dilatation. The author applied Na: YAG laser non-contact irradiation method, the power of 80W, distance 0.5cm, 2 times / second, an interval of 1 to 2 seconds. Laser irradiation of blood, in order to determine the front of the laser probe coagulation, intravascular saline into flashes for endoscopic observation. Prior to irradiation, the balloon was occluded at the proximal end of the artery, and the arterial wall at the site of arterial stenosis became smoother after laser irradiation, and stenosis scarcely occurs again. The authors performed a high degree of atherosclerosis in the expansion of the seven parts, no recurrence, the observation time was 8 to 32 months. Buerger’s disease laser dilatation of the few cases, it is difficult to evaluate. However, the occlusion is relatively short (5cm or less) more effective. PTLA indications except PTA