Alternative wavelengths for sutureless laser microvascular anastomosis: A preliminary study on acute samples

L. S. Bass, M. C. Oz, S. K. Libutti, M. R. Treat

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Attempts to improve the speed and patency of microvascular anastomosis with laser-assisted techniques have provided a modest reduction in operative time and comparable success rates. Using sutureless microvascular anastomoses, 30 end-to-end anastomoses were created in the rat carotid artery using the gallium-aluminum-arsenide diode laser (808 nm). Indocyanine green and fibrinogen were applied to enhance tissue absorption of the laser energy and strengthen the bond created. These were compared with previously reported welds using the THC:YAG laser (2150 nm). Mean welding times were 140 and 288 s, and mean bursting pressures immediately after welding were 515 and 400 mmHg for the diode and THC:YAG laser groups, respectively. Histologically, both lateral and vertical spread of thermal damage was limited. Since both lasers create welds of adequate initial strength without stay sutures and are faster and easier to use than existing systems, evaluation of long-term patency would be worthwhile.

Original languageEnglish (US)
Pages (from-to)207-210
Number of pages4
JournalJournal of Clinical Laser Medicine and Surgery
Volume10
Issue number3
Publication statusPublished - Jan 1 1992

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ASJC Scopus subject areas

  • Surgery
  • Biomedical Engineering

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