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维生素B_(12)缺乏性周围神经病(附1例报告及文献复习) 被引量:1

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摘要 目的探讨维生素B_(12)缺乏性周围神经病的临床特点及治疗。方法报告1例维生素B_(12)缺乏导致周围神经病患者的临床表现、治疗及随访情况,并结合文献复习进行分析。结果患者男性,35岁,因四肢发麻伴乏力1个月入院。临床表现为四肢长手套样感觉异常,四肢末端肌力下降,双上肢腱反射及双侧踝反射未引出,闭目难立征阳性。实验室检查:红细胞数和血红蛋白降低,维生素B_(12)降低(<61. 2 pmol·L^(-1)),同型半胱胺酸升高(142. 3μmol·L^(-1)),内因子抗体阳性。胃镜检查提示慢性浅表性胃炎伴糜烂。肌电图示四肢周围神经远端感觉受累。诊断:维生素B_(12)缺乏合并恶性贫血及高同型半胱氨酸血症,维生素B_(12)缺乏性周围神经病。经大剂量甲钴胺肌肉注射治疗有效。结论维生素B_(12)缺乏可导致周围神经病,甲钴胺大剂量肌肉注射治疗有效。维生素B_(12)与叶酸联合治疗有助于纠正恶性贫血。伴发恶性贫血患者可能需要终身使用甲钴胺治疗。
出处 《中国临床神经科学》 2019年第2期186-190,共5页 Chinese Journal of Clinical Neurosciences
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