低血镁综合征是低血镁引起,以四肢强直性抽搐为主的症状群。临床上易误诊为低血钙性抽搐。本文报告2例,均有典型的四肢强直性抽搐,用钙剂治疗无效,同时伴有低血钾,低血钙。1例用硫酸镁治疗症状完全缓解,低血钾和低血钙很快得到纠正。结合文献,对临床表现、发病机理及治疗方法略加讨论。 Hypoglycemic syndrome is a group of symptoms caused by hypomagnesemia and twitch-based tetanus. Clinically misdiagnosed as hypocalcemic convulsions. This article reports 2 cases, all have typical limb tonic convulsions, with calcium treatment ineffective, accompanied by hypokalemia, hypocalcemia. 1 case of magnesium sulfate symptoms were completely relieved, hypokalemia and hypocalcemia quickly be corrected. Combined with the literature, a brief discussion of clinical manifestations, pathogenesis and treatment.