Intranuclear rods myopathy with autonomic dysfunction

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• 作者：Po-Ching Chou ; Wen-Chen Liang ; Ikuya Nonaka ; Satomi Mitsuhashi ; Ichizo Nishino ; Yuh-Jyh Jong
• 关键词：Intranucler rods myopathy ; Nemaline myopathy ; Autonomic dysfunction
• 刊名：Brain and Development
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：35
• 期：7
• 页码：686-689
• 全文大小：1107 K

文摘

Intranuclear rods myopathy (IRM), a variant of nemaline myopathy (NM), is characterized by rod structure in the myonuclei. Patients with IRM present with similar symptoms to those of severe infantile-type NM but have worse outcome. Several extramuscular manifestations have been reported in NM but no dysautonomia. We herein report a 2-year-old girl with IRM and a heterozygous mutation, c.430C > T (p.L144F) in ACTA1. During the infancy, the patient showed severe diaphoresis and facial flushing. Arrhythmia and hypertension with the precipitating factors of feeding, defecation, and urination were observed. Sympathetic antagonist was prescribed and showed some effectiveness. Our report may widen the clinical spectrum of IRM. It also reminds clinicians that autonomic dysfunction may occur in patients with IRM or other actinopathies and appropriate treatment may be necessary.