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颈内动脉(ICA)闭塞的预后受是否发生脑缺血所左右。为了检测血液动力学变化,研究 ICA 闭塞时的临床和形态学特征之间的关系,作者采用 TCDCO_2试验作为检测 ICA 患者脑血管运动反应(CVR)的方法。通过药物(醋唑磺胺)和生理(屏气)的影响观察症状性动脉闭塞时 CVR 的变化。经多普勒超声和血管造影证实的单侧颈动脉闭塞脑血管意外患者30例(男28,女2),年龄48～72岁,平均62.9±6.1岁。应用 TCD 仪2MHz 探头分别记录静息时、尽力屏气(>30s)时及静注1g 醋唑磺胺(约12～15mg/kg 体重时大脑中动脉(MCA)之平均血流速度。在屏气和药物刺激下,从
The prognosis of internal carotid artery (ICA) occlusion is influenced by whether cerebral ischemia occurs. To examine the hemodynamic changes, we investigated the relationship between clinical and morphologic characteristics of ICA occlusion. We used the TCDCO 2 test as a measure of cerebrovascular response (CVR) in ICA patients. The changes of CVR during symptomatic arterial occlusion were observed by the influence of drugs (acetochlor sulfonamide) and physiology (breath holding). 30 patients (male 28, female 2) with unilateral carotid artery occlusion cerebrovascular accident confirmed by Doppler ultrasonography and angiography, aged 48-72 years, with an average of 62.9 ± 6.1 years. The mean blood flow velocity of middle cerebral artery (MCA) at intravenous injection of 1 g of acetosulfuronamide (about 12-15 mg / kg body weight) was recorded using a TCD 2 MHz probe at rest, resting breath (> 30 seconds) Stimulate, from