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Proceedings Paper

Laser-Assisted Microvascular Anastomosis
Author(s): Yoshimochi Kurokawa; Yoshi Taguchi; Itaru Ohara; Shozo Mori
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Paper Abstract

A low power carbon dioxide laser was used to perform 110 end-to-end laser-assisted microvasuclar anastomoses of carotid arteries in ginea pigs and rabbits. In 56 of 72 cases which were irradiated with power output 20-40 mW, energy density 1.5-2.5 Joule/mm2, showed patency immediately after surgery with no wound distruption nor thrombus formation. From these results, the optimum condition for anastomosis seemed to be in this range of power output and energy density. The bursting strength of laser-assisted anastomosis (LA) was assessed and compared with conventional suture anastomosis (CA). LA arteries consistently demonstrated lower bursting strength than those of CA. Relatively low bursting strengths at 1 hour and 3 days in the LA with 3 stay sutures may explain the late aneurysm formation. Additional stay suture seemed to prevent such complication. The mean duration of each anastomosis was 13 minutes for the LA repairs compared to an average of 24 minutes for CA repairs. These findings suggest that a low power carbon dioxide laser has potential clinical application for anastomosis of small vessels.

Paper Details

Date Published: 11 September 1989
PDF: 6 pages
Proc. SPIE 1066, Laser Surgery: Advanced Characterization, Therapeutics, and Systems, (11 September 1989); doi: 10.1117/12.952034
Show Author Affiliations
Yoshimochi Kurokawa, Sendai Hospital of East Japan Railway Company (Japan)
Yoshi Taguchi, Tohoku University School of Medicine (Japan)
Itaru Ohara, Tohoku University School of Medicine (Japan)
Shozo Mori, Tohoku University School of Medicine (Japan)


Published in SPIE Proceedings Vol. 1066:
Laser Surgery: Advanced Characterization, Therapeutics, and Systems
Kazuhiko Atsumi; Norman R. Goldblatt; Stephen N. Joffe, Editor(s)

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