Ishimaru S, Kawachi K, Osada K, Furukawa K
Department of Surgery, Tokyo Medical College, Japan.
Nihon Geka Gakkai Zasshi. 1990 May;91(5):639-44.
Contact laser thermal angioplasty with a metal hot tip heated by an Argon laser system (Trimedyne Inc.) was performed on 34 peripheral arterial occlusive or stenotic regions (7 iliac, 20 femoral and 7 popliteal arteries) in 22 patients with ASO. The early clinical results of laser angioplasty were investigated by comparing those of 15 patients treated by percutaneous transluminal balloon angioplasty (PTA). There was no perforation of the arterial wall caused by thermal ablation with the hot tip heated by repeated pulses under power conditions of 10 watts of laser energy for 5 seconds. Detachment of the hot tip caused by frequent healing without a sufficient period of tip cooling was observed in 2 cases. Acute thrombosis was observed in 1 patient during reconstruction of the proximal artery. The initial success rate of laser angioplasty and PTA was 91.2% and 86.7%, respectively. Re-stenosis or occlusion was observed in 7 of 31 regions 6 months after laser angioplasty. Satisfactory results were not obtained in the femoral artery. The overall patency rate of laser angioplasty and PTA was 77.4% and 69.2%, respectively. The initial success rate of laser angioplasty in totally obstructed arterial regions was higher than that of PTA.
对22例动脉硬化闭塞症（ASO）患者的34个外周动脉闭塞或狭窄区域（7例髂动脉、20例股动脉和7例腘动脉）进行了接触式激光热血管成形术，该热血管成形术使用由氩激光系统（Trimedyne公司）加热的金属热探头。通过比较15例接受经皮腔内球囊血管成形术（PTA）治疗的患者，研究了激光血管成形术的早期临床结果。在10瓦激光能量持续5秒的功率条件下，重复脉冲加热的热探头进行热消融未导致动脉壁穿孔。2例观察到因热探头冷却时间不足频繁愈合导致热探头分离。1例患者在近端动脉重建过程中出现急性血栓形成。激光血管成形术和PTA的初始成功率分别为91.2%和86.7%。激光血管成形术后6个月，31个区域中有7个出现再狭窄或闭塞。股动脉未获得满意结果。激光血管成形术和PTA的总体通畅率分别为77.4%和69.2%。激光血管成形术在完全闭塞动脉区域的初始成功率高于PTA。
