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休克是一种急性循环功能不全综合征,也是临床各种严重疾病中常见的并发症。当人体遭受各种致病因素的强烈侵袭,迅速引起神经、内分泌、循环和代谢等机能的紊乱,使有效循环血量骤然减少。休克的主要病变系微循环障碍,导致全身组织和脏器血流灌注不足,细胞缺氧,代谢紊乱等一系列病理生理改变。其主要临床表现有血压下降(收缩压降至10.67kPa以下,脉压小于2.67kPa)心率增快,脉搏细弱,全身无力,皮肤湿冷,面色苍白或紫绀,静脉萎陷,尿量减少,烦躁不安,反应迟钝,神志模糊、昏迷,甚至死亡。
Shock is an acute circulatory insufficiency syndrome and is a common complication of various serious clinical conditions. When the human body is subjected to a variety of causative factors, it rapidly causes disorder of functions of nerves, endocrine, circulation and metabolism, so that the effective circulating blood volume suddenly decreases. The main pathological changes in the Department of microcirculation shock, leading to systemic tissue and organ insufficiency, hypoxia, metabolic disorders and a series of pathophysiological changes. The main clinical manifestations of decreased blood pressure (systolic blood pressure down to 10.67kPa below, pulse pressure less than 2.67kPa) heart rate faster, weak pulse, generalized weakness, skin wet and cold, pale or cyanotic, vein collapse, decreased urine output, restlessness , Unresponsive, vague, coma, and even death.