A New Technique for End-To-Side Anastomosis Between Small Arteries
The construction of an end-to-side anastomosis between arteries of small calibre, as in the extra-intracranial bypass procedure, will take, in experienced hands, about 25–40 minutes. During this period the receiving cortical artery is occluded. Since this artery is part of the leptomeningeal collateral circulation system, normally no local ischaemia develops. For an end-to-side anastomosis in the more proximal portion of one of the three main cerebral arteries (anterior, middle and posterior cerebral artery) this occlusion period is much too long, since collateral flow at this level is insufficient.
KeywordsCerebral Artery Collateral Flow Carotid Endarterectomy Proximal Portion Posterior Cerebral Artery
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