Aneurysm formation after low power carbon dioxide laser-assisted vascular anastomosis

M. R. Quigley, J. E. Bailes, Hau C. Kwaan, L. J. Cerullo, J. T. Brown

Research output: Contribution to journalArticle

69 Scopus citations

Abstract

A series of 125 adult rats was operated upon to perform end-to-end anastomosis of the femoral artery using either a carbon dioxide laser or conventional suture technique. Vessels were inspected at varying time intervals grossly and microscopically. Overall, the rate of aneurysm formation for the laser group was 18.6% (21/113). Late aneurysm formation (1 week or longer after operation) was seen in 29.8% (20/67) of the laser group. No aneurysms were noted in the suture group either early or late. Histological examination of the laser-joined vessels revealed widespread necrosis and loss of elastic elements in the media. In time, abnormal spindle-shaped cells appeared in this damaged layer. Histologically, the aneurysms were indistinguishable from those reported in human cerebral aneurysm cases. This technique provides an experimental aneurysm model and lends support to the acquired/degenerative theory of human cerebral aneurysm formation.

Original languageEnglish (US)
Pages (from-to)292-299
Number of pages8
JournalNeurosurgery
Volume18
Issue number3
DOIs
StatePublished - Jan 1 1986

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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