11 September 1989 Arterial And Venous Anastomoses Using CO2 Laser Energy
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Laser-assisted arterial and venous anastomoses are now possible using a low power CO2 laser. A microscope-guided CO2 laser has been used to deliver 60 to 100 mil liwatts to anastomose arteries and veins. This technique has been used to anastomose rabbit carotid arteries (1.5 to 2.0 mm), rabbit femoral arteries (1.1 to 1.5 mm), and rabbit vena cavae (4 to 6 mm). In addition, rat femoral arterial end-to-end (1 mm) and arterial venous fistulas have been completed. Histologic examination of laser-assisted anastomoses showed local full-thickness thermal injury. Repair was by fibroblast and myofibroblast proliferation, and luminal cell coverage was complete by 14 days in laser repairs. Laser arterial and venous anastomoses are attractive because of their simplicity and rapidity of performance. Their patency has proved to be comparable to sutured anastomoses, but arterial aneurysms remain a hazard despite use of extemely low laser energy.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Walter J. McCarthy, Renee S. Hartz, "Arterial And Venous Anastomoses Using CO2 Laser Energy", Proc. SPIE 1066, Laser Surgery: Advanced Characterization, Therapeutics, and Systems, (11 September 1989); doi: 10.1117/12.952027; https://doi.org/10.1117/12.952027

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