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- Title
Small-Caliber Arterial Anastomosis Using a CO<sub>2</sub> Laser.
- Authors
Zempo, Nobuya; Esato, Kensuke; Yoshimura, Koichi; Seyama, Atsushi; Harada, Mikihiko; Takenaka, Hiroaki; Fujioka, Kentaro; Ohara, Masaki
- Abstract
The present study was designed to determine whether the use of CO2 laser irradiation could effectively maintain long-term patency in small-caliber arterial anastomoses less than 3 mm in diameter. A preliminary study was conducted to examine the relationship between laser energy and histologic changes. The laser output of 30 to 40 mW produced a less inflammatory response, than 50 mW did and almost normal aortic architecture one month after the exposure. Therefore, a 30 to 40 mW range, over a twenty-second period, was seen as a suitable laser energy. Arterial anastomoses using a CO2 laser were performed (12 rabbits) with a suitable laser energy. Conventional anastomoses were performed as controls (12 rabbits). The operation times, patency rate, and histologic changes were compared in both groups at one week and at one, three, and six months after anastomoses. The anastomotic time was shorter in the laser anastomosis group than that in the control group. The patency rate was equal in both groups. However, the conventional anastomosis group revealed slight intimal hyperplasia at six months, whereas the laser anastomosis group showed almost normal neointimal development. It was hence concluded that CO2 laser welding of the anastomosis is an acceptable alternative to conventional anastomosis.
- Subjects
ARTERIOVENOUS anastomosis; CARBON dioxide lasers; INFLAMMATION; HISTOLOGY; HYPERPLASIA
- Publication
Vascular Surgery, 1992, Vol 26, Issue 1, p8
- ISSN
0042-2835
- Publication type
Article
- DOI
10.1177/153857449202600102