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Proceedings Paper

Local microcirculation disorders in uterus under laser tissue welding and their influence in the healing process
Author(s): Valentine I. Kozlov; Oleg K. Skobelkin; Ildar Fatkullin; Oleg Alexandrov Terman; Gennadii Chizhov; Rushania Gabidullina
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Paper Abstract

To study the possibility of using Nd:YAG laser to weld the tissues of the uterus experiments in rats and dogs have been conducted. With the biomicroscopy and the laser Doppler flowmetry we have evaluated the microcirculation in the uterus wall under traditional suture and laser welding suture. As a model of the wound, the dissection of serosa and muscles of the organ wall have been used. In laser welding suture we have welded the zone of tissue about 1 mm3 with the laser (power density 270 W/cm2). Histological control has been fulfilled on various phases of the healing process. The investigation of the uterus wall demonstrates that there are zones of microcirculation disorders in tissues: (1) the zone of coagulation of microvessels and adjacent tissues (about 100 micrometers ); (2) the zone of stasis (150 - 200 micrometers ); (3) the zone of reactive-destructive changes of microvessels (300 micrometers ), (4) the zone of malfunctional microcirculatory changes (600 micrometers ). The coagulation of microvessels changes the character of inflammation and the healing process, decreases the exudation phase and the leucocyte infiltration of tissues, and accelerates the capillary growth. In contrast with traditional suture, in the case of laser welding suture the edema and hemorrhagic signs are less expressed. The complete restoration of microcirculation under laser welding suture has been observed by the fourteenth day of the healing process. Under the traditional suture method normalization of tissue nutritious blood flow has been achieved by 21 days.

Paper Details

Date Published: 23 December 1994
PDF: 9 pages
Proc. SPIE 2327, Medical Applications of Lasers II, (23 December 1994); doi: 10.1117/12.197566
Show Author Affiliations
Valentine I. Kozlov, State Research Ctr. for Laser Medicine (Russia)
Oleg K. Skobelkin, State Research Ctr. for Laser Medicine (Russia)
Ildar Fatkullin, State Research Ctr. for Laser Medicine (Russia)
Oleg Alexandrov Terman, State Research Ctr. for Laser Medicine (Russia)
Gennadii Chizhov, State Research Ctr. for Laser Medicine (Russia)
Rushania Gabidullina, State Research Ctr. for Laser Medicine (Russia)

Published in SPIE Proceedings Vol. 2327:
Medical Applications of Lasers II
Stephen G. Bown; J. Escourrou; Frank Frank; Herbert J. Geschwind; Guilhem Godlewski; Frederic Laffitte; Hans H. Scherer, Editor(s)

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