Objective: To study the clinical features and treatment of neonatal hypocalcemia inducing atrioventricular block. Methods: A retrospective analysis of our hospital's clinical data of 26 cases of neonatal hypocalcemia inducing atrioventricular block from January 2001 to January 2011. Results: 26 patients, 14 males and 12 females, age was from 1 day to 20 days. Among them, 6 patients with mother suffering from hyperthyroidism, 8 patients with diabetic mothers and 12 patients with newborn asphyxia. Among these 26 patients, 4 patients had hypomagnesemia. Through positive calcium replenishment and symptomatic treatment, 22 patients atrioventricular block disappeared, heart rate gradually returned to normal. 2 patients gave up treatment because of economic reasons, 2 patients who had recurrent 2:1 atrioventricular block were dead. Conclusion: Clinical neonatal hypocalcemia is common, but atrioventricular block induced is rare, therefore,when the baby has slower heart rate, especially when heart rate is lower than 80 times every minutes and the fster heart rate drug is not effective, we should pay attention to the dynamic, review electrolyte and replenish calcium, vitamin D and its derivatives, 1, 25-(OH)2D in time.%目的:探讨新生儿低钙血症致房室传导阻滞的临床特征及治疗.方法:回顾性分析我院2001年1月～2011年1月收治的26例新生儿低钙血症致房室传导阻滞的临床资料.结果:26例患儿中,男14例,女12例,发病年龄在生后1～20 d.母亲患甲状腺功能亢进者6例,母亲患糖尿病者8例,新生儿窒息12例.26例中有4例合并低镁血症.26例患儿中,22例患儿经过积极补钙及对症治疗房室传导阻滞消失,心室率逐渐恢复正常,2例由于经济原因放弃治疗,2例反复出现2∶1房室传导阻滞患儿死亡.结论:新生儿低钙血症临床较常见,但引起房室传导阻滞者并不多见,因此在新生儿心率较慢时,特别是心率<80次/min、临床应用增快心率药物效果差时,应注意动态复查电解质,及时补充钙剂、维生素D及其衍生物1,25-(OH)2D.
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