Next frontier is inclusion of high-grade carotid artery stenosis in the CHA2DS2 Vasc score

To the Editor A corollary to the recommendation for anticoagulant persistence1 is a recognition that the time is long overdue for inclusion of evaluation of the extracranial carotid artery for evidence of high-grade (ie >50% occlusion) carotid artery stenosis (CAS). The following is the rationale for the latter recommendation: Among patients aged >70, high-grade CAS has a prevalence of 12% among men and 11% among women.2 A systematic review …