试题与答案

颈内动脉狭窄病变,造影发现管腔内径缩小超过50%时,应行() A.溶栓治疗 B.扩容

题型:单项选择题

题目:

颈内动脉狭窄病变,造影发现管腔内径缩小超过50%时,应行()

A.溶栓治疗

B.扩容治疗

C.高压氧治疗

D.颈动脉内膜切除术

E.颅内、外血管搭桥

答案:

参考答案:D

解析:一般认为颈内动脉狭窄到原管腔横截面积的80%时可以使原有血流明显减少,因此内径缩小超过50%即认为影响血流,应行手术切除增厚的内膜粥样硬化斑块。经过40多年的总结,已证明手术是防止缺血性脑血管疾病的有效方法。

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