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Cervical artery dissection (CeAD) occurs preferentially in the middle-aged, and its annual incidence rate is 2.6 to 3.0 per 100,000.1 Manifestations of internal carotid artery dissection (ICAD) include ischemic stroke and TIA (>70% of patients), headache, neck pain, Horner syndrome, cranial nerve palsy, pulsatile tinnitus, and, rarely, subarachnoid hemorrhage.2 Cerebral hyperperfusion syndrome is known to occur after carotid artery revascularization procedures and it is thought to result from the combination of several factors that impair cerebral vascular autoregulatory mechanisms.3
Footnotes
Author contributions: João Pinho: study concept and final manuscript writing. Sofia Rocha: data review and manuscript writing. Sara Varanda: literature review and manuscript writing. Manuel Ribeiro: data review, important intellectual contribution, manuscript review. Jaime Rocha: important intellectual contribution, manuscript review. Carla Ferreira: important intellectual contribution, final manuscript writing.
Study funding: No targeted funding reported.
Disclosure: The authors report no disclosures relevant to the manuscript. Go to Neurology.org for full disclosures.
- Received November 5, 2012.
- Accepted in final form March 11, 2013.
- © 2013 American Academy of Neurology
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