单纯低血镁、特別是长期饮酒导致低血镁而致心律失常文献报道甚少,今见一例报告如下。 李某,男,38岁。该患者发作性心悸2年,近半年心悸频繁发作,每次持续时间约2min。平素有乏力、失眠,手足麻木及双手震颤。因病曾到各家医院诊断不一,多种药物治疗无效而来我院。饮酒史10余年,近2年饮白酒量增至30C～600ml/日,每晚饮酒后方能安然入睡。入院时查体:心尖搏动无弥散,心 Simple hypomagnesemia, especially long-term drinking lead to hypomagnesemia and arrhythmia literature rarely reported, see a case of this report is as follows. Lee, male, 38 years old. The patient had episodes of heart palpitations 2 years, frequent attacks of palpitations nearly six months, each duration of about 2min. Usually have fatigue, insomnia, numbness and hands and feet tremor. Various hospitals have been diagnosed due to illness, a variety of medical treatment ineffective to our hospital. Drinking history of more than 10 years, nearly 2 years to drink liquor increased to 30C ~ 600ml / day, night before drinking safely sleep. Physical examination at admission: apical beat no dispersion, heart