晚发性维生素K缺乏症临床上并非少见,往往起病急骤,严重出血、贫血,病情进展迅速,留下严重神经系统后遗症。但是由于临床医生对该病的认识不足,造成许多病儿误诊,延误了治疗时机,给患儿留下严重的神经系统后遗症。现将我院17例误诊病例进行总结分析,吸取教训。 1 临床资料 男10例,女7例,年龄最小25天,最大3个月10天,平均55天。～1月2例,～2月11例,～3月3例,～4月1例。均为单纯母乳喂养,均符合晚发性维生素K缺乏症的诊断标准。首发症状:腹泻、呕吐7例,抽搐、嗜睡5例,发 Late onset vitamin K deficiency clinically not uncommon, often sudden onset, severe bleeding, anemia, the rapid progress of the disease, leaving a serious nervous system sequelae. However, due to lack of understanding of the disease clinicians, resulting in misdiagnosis of many sick children, delayed the timing of treatment, leaving children with serious neurological sequelae. Now 17 cases of misdiagnosis in our hospital to summarize and learn lessons. A clinical data of 10 males and 7 females, the youngest 25 days, up to 3 months and 10 days, an average of 55 days. ~ 2 in January, 11 in February, 3 in March, and 1 in April. Are breastfeeding, are in line with the diagnosis of late onset vitamin K deficiency. First symptom: diarrhea, vomiting in 7 cases, convulsions, lethargy in 5 cases, hair