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心源性休克是由于心脏泵功能衰竭引起原发性心输出量减低,或由于充盈不足引起继发性心输出量减低,使维持生命的器官(心、脑、肾)得不到足够的血液灌注,而产生的临床综合征。心脏泵功能衰竭见于重症心肌疾病、急性心肌梗塞、急性瓣膜穿孔、腱索断裂。充盈不足可因机械因素引起,如心包填塞、张力性气胸、肺梗塞、瓣膜口堵塞等。严重心律失常也可导致心室充盈不足。小儿心源性休克的病因为:急性心肌炎、急型克山病、心包填塞、张力性气胸、室上性心动过速、室性心动过速、感染性心内膜炎、川崎病、左冠状动脉起源异常,左房粘液瘤及静脉注射心脏抑制药,如心得安、异搏停等。
Cardiogenic shock is caused by a decrease in primary cardiac output due to heart pump failure, or a decrease in secondary cardiac output due to inadequate filling, leaving insufficient blood to the living organs (heart, brain, kidney) Perfusion, while producing clinical syndromes. Cardiac pump failure found in severe myocardial disease, acute myocardial infarction, acute valve perforation, chordate rupture. Insufficient filling can be caused by mechanical factors, such as tamponade, tension pneumothorax, pulmonary infarction, valve orifice blockage. Severe arrhythmias can also lead to inadequate ventricular filling. Causes of cardiogenic shock in children are: acute myocarditis, acute Keshan disease, tamponade, tension pneumothorax, supraventricular tachycardia, ventricular tachycardia, infective endocarditis, Kawasaki disease, left coronary Arterial abnormalities, left atrial myxoma and intravenous cardiac depressants, such as propranolol, verapamil and so on.