レーザー血管形成術後の動脈壁の円滑な治癒について

抄録

The object of this paper is to report smooth healing of arterial wall of obstructing arterial disease (ASO) treated with laser angioplasty as well as the general results of laser angioplasty.
The initial success rate of percutaneous transluminal laser angioplasty (PTLA) in our series of 161 procedures was 87%. The 6-year-patency rate by Kaplan-Meier method was 89.8% in total cases, 91.4% for iliac lesions and 85.8% for femoro-popliteal lesions.
In our selected cases of ASO, most of which measured less than 10 cm in length, showed fairly good long-term patency, and the arterial wall healed smoothly after PTLA as the time elapsed. Some of such representative cases were demonstrated with follow-up angiograms.
PTLA expanded the indication of percutaneous translumunal angioplasty by making a tunnel in the obstructing lesion in ASO.
The reason of smooth healing of arterial wall after PTLA seems to be partially due to welding effect of laser.