Abstract
Laser thermal angioplasty (LTA) was performed in 34 patients with the occlusive disease of the femoropopliteal artery. Argon laser and an optical fiber delivery system with metal tip probe with thermal feedback control system were used for LTA. Initial success was achieved in 35 (85%) of all 41 lesions, 14 (88%) of 16 in the stenotic lesions and 21 (84%) of 25 in the occlusive lesions. The length of the lesions was significantly longer in a group of the 6 lesions without clinical improvement, and also, the number of the calcified lesions increased remarkably in these patients. At the follow-up of 55 months, the cumulative patency rate (CPR) was 74% in 30 cases with clinical success. In the 12 stenotic and 18 occlusive lesions, the CPR were 80% and 69%, respectively. These results suggested that LTA was useful for the management of patients with chronic occlusion of the peripheral arteries and provided good long-term patency rates by reducing restenosis.
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