循环骤停指心脏突然丧失有效的泵血功能，导致循环完全停止，心音消失，大动脉搏动消失，意识丧失、呼吸停止，瞳孔散大。循环骤停可造成一定的病理损害。因此循环复苏要求在6分钟以内积极实施，复苏愈早成功率也愈高。
超声多普勒诊断脑死亡中脑循环骤停：我们需要检测颈动脉吗？
Diagnosis of Cerebral Circulatory Arrest by Doppler Ultrasound in Brain Death: Do We Need the Cervical Arteries?
目的探讨急诊体外循环（ECPB）动脉灌注管位置对肺门部火器伤后心脏骤停犬心肺复苏（CPR）的影响。
Objective To determine the effect of different positioning arterial cannulation for emergency cardiopulmonary bypass(ECPB)on cardiopulmonary resuscitation(CPR)after cardiac arrest.
方法：56名心跳呼吸骤停患者分为心肺复苏机cpr组、人工标准CPR组，比较两者循环、呼吸恢复率。
Methods: 56 patients with cardiac respiratory arrest were divided into Thumper PCR group and standard CPR group. The resuscitation rate of circulation and respiration was compared in both groups.
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