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Proceedings Paper

Experimental study of myocardial revascularization by CO2 laser
Author(s): Mingying Wu; Gongsong Li; Junheng Li M.D.
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Paper Abstract

The coronary lesions are usually diffuse, so bypass and PTCA are indicated in only a limited proportion of coronary patients. Revascularization with laser was studied in our laboratory. Fifteen dogs with mimic myocardial ischemia by multiple coronary artery ligation were divided into two groups, five acting as a control group. In 10, CO2 laser was adopted in making a series of channels in the myocardium. We aimed to evaluate the effect of laser in revascularization, and to document long-term follow up. Our experiment demonstrated that laser-producing channels protect myocardium from ischemic events. Postoperative improvement of ventricular function and increased regional myocardial perfusion were observed. Microscopic and SEM examination at intervals of 3 days to 3 months showed the patency of channels and development of collateral circulation.

Paper Details

Date Published: 5 March 1993
PDF: 6 pages
Proc. SPIE 1616, International Conference on Photodynamic Therapy and Laser Medicine, (5 March 1993); doi: 10.1117/12.137040
Show Author Affiliations
Mingying Wu, Chinese Great Wall Hospital (China)
Gongsong Li, Chinese Great Wall Hospital (China)
Junheng Li M.D., Chinese Great Wall Hospital (China)

Published in SPIE Proceedings Vol. 1616:
International Conference on Photodynamic Therapy and Laser Medicine
Junheng Li M.D., Editor(s)

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