关键词: 动脉瘤; 夹层; 头部; 颈

Abstract: Cervicocerebral arterial dissection (CAD )implies a intimal tear in the wall ofcervicocerebral artery leading to the intrusion of blood into layers of the arterial wall (intramural haematoma). The pathogenesis of CAD is incompletely understood. CAD has been reported in associations with trauma, genetic factors, infections, migraine, smoking, hypertension andcontraceptive use. The clinical manifestations of CAD are neck pain and headache, partial Horner’s syndrome,ipsilateral cranial nerve palsies, ipsilateral cerebral or retinal ischemia, Transient Ischemic Attack or stroke.Imaging examinations are very important for diagnosing CAD. The commonest finding on angiography is the so called“string signal” -- a long segment of narrowed lumen. The pathognomonic feature is intimal flap or double lumen. Treatment of CAD is essentially medical therapy, Anticoagulants and antiplatelet agents are commonly used in the treatment of CAD. When medical treatment with six month anticoagulation fails, carotid aneurysms or high grade stenosis become worse, CAD treated by surgical is needed.

Key words: Aneurysm; dissecting; Head; Neck