In some pathophysiological processes such as severe shock, the patients and animal experimental models fail to respond to pressor medicine. Vascular hyporesponse or vasodilation is one of the key problems in treatment...In some pathophysiological processes such as severe shock, the patients and animal experimental models fail to respond to pressor medicine. Vascular hyporesponse or vasodilation is one of the key problems in treatment of these patents. Although considerable progress had been made in recent years, the precise mechanisms of vascular contractile hyporeactivity have not been completely elucidated. A number of studies indicate that vascular hyporesponse or vasodilation correlate with many factors. In this review, the possible mechanisms about vascular hyporesponse or vasodilation during shock and other pathphysiolgoical processes were discussed.展开更多
患者男性,59岁,主因突发头晕伴行走不稳3 d,于2015年9月20日入院。患者3 d前跑步时无明显诱因突发头晕伴行走不稳,休息后症状加重并出现右眼视物模糊和右侧听力下降,当地医院行头部CT和MRI检查提示基底动脉延长扩张症伴动脉瘤,右侧小脑...患者男性,59岁,主因突发头晕伴行走不稳3 d,于2015年9月20日入院。患者3 d前跑步时无明显诱因突发头晕伴行走不稳,休息后症状加重并出现右眼视物模糊和右侧听力下降,当地医院行头部CT和MRI检查提示基底动脉延长扩张症伴动脉瘤,右侧小脑新发梗死（图1a,1b）。为求进一步手术治疗,遂至我院就诊。患者既往有高血压（高血压3级,极高危）20余年,血压最高达180/110 mm Hg（1 mm Hg=0.133 k Pa）,规律服用硝苯地平20 mg/d,展开更多
文摘In some pathophysiological processes such as severe shock, the patients and animal experimental models fail to respond to pressor medicine. Vascular hyporesponse or vasodilation is one of the key problems in treatment of these patents. Although considerable progress had been made in recent years, the precise mechanisms of vascular contractile hyporeactivity have not been completely elucidated. A number of studies indicate that vascular hyporesponse or vasodilation correlate with many factors. In this review, the possible mechanisms about vascular hyporesponse or vasodilation during shock and other pathphysiolgoical processes were discussed.
文摘患者男性,59岁,主因突发头晕伴行走不稳3 d,于2015年9月20日入院。患者3 d前跑步时无明显诱因突发头晕伴行走不稳,休息后症状加重并出现右眼视物模糊和右侧听力下降,当地医院行头部CT和MRI检查提示基底动脉延长扩张症伴动脉瘤,右侧小脑新发梗死（图1a,1b）。为求进一步手术治疗,遂至我院就诊。患者既往有高血压（高血压3级,极高危）20余年,血压最高达180/110 mm Hg（1 mm Hg=0.133 k Pa）,规律服用硝苯地平20 mg/d,
