Laser Thermal Angioplasty by the Contact Method for Arteriosclerosis Obliterans of the Lower Limbs.

VernacularTitle:下肢閉塞性動脈硬化症に対する接触法によるレーザー血管形成術の臨床的検討
Author: Kazuhito OSADA
Publication Type:Journal Article
Keywords: laser; laser thermal angioplasty; atherosclerosis obliterance; metal hot tip probe; anti-coagulant therapy
From:Japanese Journal of Cardiovascular Surgery 1991;20(9):1476-1482
CountryJapan
Language:Japanese
Abstract: Laser thermal angioplasty with a metal hot tip probe was performed on 34 cases of arteriosclerosis obliterans of the lower limbs, instead of conventional balloon angioplasty. Initial angiographic and clinical success was achieved in 48 of 53 (90.5%) arterial lesions. The initial success rates were 91.6%, 87.8% and 100% for lesions of the iliac, femoral and popliteal arteries respectively. The initial success rate was 66.6% in occlusive lesions, and was 100% in stenotic lesions. Five of seven (71.4%) occlusions less than 10cm length, and five of eight (62.5%) occlusions longer than 10cm were successfuly treated. Higher laser energy was necessary for ablation in occlusive lesions than in stenotic lesions. The ankle pressure index improved postoperatively in both occlusive and stenotic lesions. Satisfactory long term patency was achieved in 27 of 35 successfully treated lesions (77.1%). These results suggest that laser thermal angioplasty is effective for the treatment of arteriosclerotic disease in the lower limbs.