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Please use this identifier to cite or link to this item: http://hdl.handle.net/10564/3325

Title: Characteristics of Risk-Factor Profiles Associated with Stroke in Patients with Myotonic Dystrophy Type 1.
Other Titles: 筋強直性ジストロフィー1型における脳卒中に関する危険因子の臨床的特徴
Authors: Sugie, Miho
Sugie, Kazuma
Eura, Nobuyuki
Iwasa, Naoki
Shiota, Tomo
Nanaura, Hitoki
Izumi, Tesseki
Ueno, Satoshi
Keywords: Myotonic dystrophy
Muscular dystrophy
Myopathy
Stroke
Arrhythmias
Atrial fibrillation
Dyslipidemia
Issue Date: 2016
Publisher: iMed Pub.
Citation: Journal of Rare Disorders : Diagnosis & Therapy Vol.2 No.4 p.19(Article Number) (2016)
Abstract: Objective: Myotonic dystrophy type 1 (DM1) is a rare autosomal dominant disorder with highly variable phenotypic expression. Some patients have diabetes mellitus, dyslipidemia, and/or arrhythmias, which are risk factors for stroke. However, the mechanism of stroke is poorly understood in patients with DM1. We studied the characteristics of risk-factor profiles for stroke associated with DM1. Patients and methods: We studied 77 patients with DM1 (45 men and 32 women) on the basis of the patients’ clinical histories and laboratory and genetic examination results. Results: The analysis showed that 26 patients (34%) had dyslipidemia, and 16 (21%) had diabetes. Arrhythmias were diagnosed in 46 patients (61%), including 11 (14%) with atrial fibrillation and 9 (12%) with conduction defects. Echocardiographic abnormalities were found in 28 patients (37%). Eight patients (11%) met the criteria for metabolic syndrome. We identified 2 patients (2.6%) with ischemic stroke caused by cardiogenic embolism among 77 patients with DM1. One had paroxysmal atrial fibrillation and sick sinus syndrome, and the other had cardiac dysfunction with an ejection-fraction of 35% and dyslipidemia. Both patients had highly expanded numbers of CTG repeats (1000 and 1500). Conclusion: To our knowledge, this is the first study to report a comprehensive analysis of risk-factor profiles for stroke in patients with DM1. Stroke is a relatively rare, but severe complication of DM1. Our results indicate that it is important to manage risk factors for stroke, especially cardiac involvement and arrhythmias.
Description: 博士(医学)・乙第1392号・平成29年3月15日
Copyright: © 2016 Sugie M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
URI: http://hdl.handle.net/10564/3325
ISSN: 23807245
Academic Degrees and number: 24601B1392
Degree-granting date: 2017-03-15
Degree name: 博士(医学)
Degree-granting institutions: 奈良県立医科大学
Appears in Collections:2016年度

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