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目的 :探讨高血压并脑卒中患者年龄对脑血流变化的影响。方法 :对经头颅CT确诊的 15 2例高血压并脑卒中住院患者 ,分为老年组和非老年组 ,采用经颅多普勒 (TCD)超声诊断仪探测双侧大脑中动脉 (MCA)、大脑前动脉 (ACA)、大脑后动脉 (PCA) ,记录平均血流速度 (Vm)、血管搏动指数 (PI)、阻力指数 (RI)。结果 :老年组与非老年组比较 ,老年组双侧ACA、MCA、PCA的Vm均较非老年组减低 (P <0 .0 5 ) ,而PI及RI较非老年组显著增高 (P<0 .0 1)。结论 :高血压脑卒中后 ,年龄是影响脑血流量的主要因素
Objective: To investigate the effect of age of patients with hypertension and stroke on cerebral blood flow changes. Methods: Fifty-two inpatients with hypertension and stroke who were diagnosed by CT scan were divided into the elderly group and the non-elderly group. The bilateral middle cerebral artery (MCA) was detected by transcranial Doppler (TCD) Cerebral anterior cerebral artery (ACA), posterior cerebral artery (PCA), mean recorded blood flow velocity (Vm), vascular beating index (PI) and resistance index (RI). Results: Vm of bilateral ACA, MCA and PCA in the elderly group were significantly lower than those in the non-elderly group (P <0.05), while PI and RI were significantly higher in the elderly group than those in the non-elderly group (P <0. 05) .0 1). Conclusion: After stroke, age is the main factor affecting cerebral blood flow