Determinants and outcome of multiple and early recurrent cervical artery dissections.

Objective: To assess putative risk factors and outcome of multiple and early recurrent cervical artery dissection (CeAD).

Methods: We combined data from 2 multicenter cohorts and compared patients with multiple CeAD at initial diagnosis, early recurrent CeAD within 3 to 6 months, and single nonrecurrent CeAD. Putative risk factors, clinical characteristics, functional outcome, and risk of recurrent ischemic events were assessed.