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Proceedings Paper

Diode laser and microvascular anastomosis-long term follow up
Author(s): Guilhem Godlewski; Jing Tang; Simone Rouy; Michel Dauzat; Jean-Marie Juan; Serge Ovtchnnikoff; Rene-Paul Salathe
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Paper Abstract

Direct diode laser assisted carotid end-to-end microanastomosis (LAMA) versus contralateral manual sutures microanastomosis (CMA) were performed in 70 Wistar rats. The laser beam- wavelength 830 nm, maximum power 3 W and continuous wave was transmitted through a micromanipulator and provided a focused spot of 300 micrometers in diameter. After placement of three 10.0 stitches for edge coaptation, LAMA was achieved on left common carotid (0.8 - 1.2 mm) using laser shots (average 3) of 500 mW power, 4.5 s duration and 700 W/cm2 irradiance each. CMA was performed on right carotid by means of six 10.0 stitches. Light and scanning electron microscopy (n equals 82) showed in LAMA that re-endothelialization was complete on day 10 while collagenous fusion of media and adventitia was evident. The patency rate was 93% after LAMA versus 93% after CMA. The intra operative advantages of LAMA versus CMA: shorter operating time minimizing organ ischemia (13 min versus 22 min) and reduced endothelial trauma were evidenced. The technical advantages of diode laser were pointed out: small size of device, absence of water cooling system, no maintenance and decreasing price of diodes.

Paper Details

Date Published: 15 February 1994
PDF: 4 pages
Proc. SPIE 2086, Medical Applications of Lasers, (15 February 1994); doi: 10.1117/12.169118
Show Author Affiliations
Guilhem Godlewski, Univ. de Montpellier (France)
Jing Tang, Univ. de Montpellier (France)
Simone Rouy, Univ. de Montpellier (France)
Michel Dauzat, Univ. de Montpellier (France)
Jean-Marie Juan, Univ. de Montpellier (France)
Serge Ovtchnnikoff, Univ. de Montpellier (France)
Rene-Paul Salathe, Ecole Polytechnique Federale (Switzerland)


Published in SPIE Proceedings Vol. 2086:
Medical Applications of Lasers
Kazuhiko Atsumi; Cornelius Borst; Frank W. Cross; Herbert J. Geschwind; Dieter Jocham; Jan Kvasnicka; Hans H. Scherer; Mario A. Trelles; Eberhard Unsoeld, Editor(s)

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