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  • Title: Carotid endarterectomy in rare bilateral carotid-vertebral anastomosis.
    Author: Pulli R, Gatti M, Pratesi C.
    Journal: J Vasc Surg; 2001 May; 33(5):1122-4. PubMed ID: 11331862.
    Abstract:
    In the embryo, the anterior and the posterior cerebral circulations are connected by several longitudinal anastomotic vessels. These anastomoses disappear progressively, until the carotid and vertebrobasilar systems are connected only by a pair of posterior communicating arteries. These embryonal anastomoses rarely persist in adults and may have an important physiologic role during carotid surgery. We report a case in which a patient with bilateral embryonal carotid-vertebral anastomoses underwent right carotid endarterectomy for asymptomatic internal carotid stenosis.
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