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患者男性,17岁。因卧位后心悸3天就诊。3天前因精神刺激,恸哭、失眠,自感平卧后心悸加重,站立及活动后减轻。平素健康,无心脏病史,无感冒及发热等病史。体格检查:体温、血压正常。心脏立位听诊心律整齐,无杂音,卧位听诊为频繁早搏呈二联律。血常规,血沉,抗“O”均正常。心脏X线检查,超声心动图检查正常。心电图示:卧位性房性早搏二联律,即刻立位房性早搏消失(附图)。经给予镇静剂及调节植物神经等药物治疗后,症状消失,心电图转正常。一般认为,卧位时迷走神经的兴奋占优势,而坐位、立位或运动后交感神经的兴奋性增高。田氏曾报道5例卧位性房室传导阻滞,证实其发生机理均与迷走神经兴奋性增
Patient male, 17 years old. 3 days after treatment due to heart palpitations. 3 days ago due to mental stimulation, crying, insomnia, palpitation increased self-supine after supine, stand and reduce activity. Usually healthy, no history of heart disease, no cold and fever and other medical history. Physical examination: body temperature, normal blood pressure. Auscultation of the heart auscultation of the heart rhythm, no noise, lying auscultatory for the frequent premature be presented law. Blood, ESR, anti “O” are normal. X-ray examination, echocardiography examination was normal. ECG shows: lying atrial premature beats, the immediate legislation atrial premature beats disappear (with photos). After being given sedatives and regulating autonomic drugs and other drugs, the symptoms disappeared, electrocardiogram turned normal. Generally believed that when the vagina vagus nerve excitement dominance, and sitting, standing or exercise after sympathetic excitability increased. Tian had reported 5 cases of supine position atrioventricular block, confirmed that its mechanism of action and exclusion of the vagus nerve increased