根据Jude统计,大医院全麻手术中心脏停搏的发生率约为1/1200,60％发生于急诊病例,其发生的机制是迷走神经突然受到压迫、刺激,通过心抑制神经纤维抑制心跳致使停搏。在耳鼻咽喉科临床检查和治疗操作中,往往涉及具有丰富迷走神经纤维的分布区,故更易引起迷走神经反射,尤在植物神经功能不稳、和迷走神经张力过高的病人中更为多见。临床经验表明,耳鼻咽喉手术小如耵聍、耳道上皮栓塞的取出术,耳道乳头状瘤摘除术,耳道肉芽、息肉、异物摘除、鼓膜穿刺与切开术,耳疖切开术,都能诱起迷走神经紧张的患者发生喉痒、咳嗽、或出汗、面色苍白、心跳缓慢、头 According to Jude statistics, the incidence of cardiac arrest during general anesthesia in major hospitals is about 1/1200 and 60% occurs in emergency cases. The mechanism is that the vagus nerve is suddenly oppressed and stimulated, and heart arrest is caused by inhibition of nerve fibers by heart Stroke In the otolaryngology clinical examination and treatment operations, often involving the distribution of a rich vagal nerve fibers, it is more likely to cause vagal reflex, especially in autonomic dysfunction, and vagus nerve tension is more common in patients. Clinical experience shows that otolaryngology small 如 聍, removal of otolith embolization, ear canal papilloma removal, ear canal granulation, polyps, foreign body removal, tympanic membrane puncture and incision, ear 疖 incision, Can induce vagal irritation in patients with throat itch, cough, or sweating, pale, slow heart, head