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Stroke. 1976;7:476-479

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Stroke, Vol 7, 476-479, Copyright © 1976 by American Heart Association

ARTICLES

Scanning electron microscopic appraisal of a new micro T-tube

FK Gregorius and RW Rand

A new micro T-tube, 0.6 mm in outer diameter, has been constructed. Use of this tube has allowed 1-mm common carotid artery (CCA) bypass ofr periods of time up to 22 minutes. After bypass, scanning electron microscopic observation of sutured CCA endothelium showed widespread destruction, scattered attached platelets and other formed blood elements, as well as microthrombi both at suture lines and in areas in contact with T-tubes. Despite microthrombi, 41 of 42 CCAs were patent after anastomosis. Silicone cuffs and 8-0 ties secured T-tubes inside vessels with no apparent difference in underlying endothelial destruction.




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