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      24-Hour Electrocardiographic Study in Myotonic Dystrophy

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          Abstract

          Thirty-eight consecutive adult patients with myotonic dystrophy were included in a study with electrocardiography at rest and 24-hour ambulatory electrocardiography. The patients were subdivided into three groups according to the severity of the disease. The prevalence of abnormal electrocardiograms at rest was 31, 50 and 100% in patients with mild, moderate and severe disease, respectively. The main characteristics observed at ambulatory electrocardiography were a high frequency of sinus bradycardia (58%) and intermittent atrioventricular block II (8 %). These bradyarrhythmias were not correlated to the severity of the disease. Sustained atrial fibrillation or flutter was found in 3 patients (8%), all with the most severe form of the disease. Ambulatory electrocardiography should be used deliberately in the evaluation of patients with myotonic dystrophy and symptoms compatible with cardiac arrhythmias.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1988
          1988
          11 November 2008
          : 75
          : 4
          : 241-249
          Affiliations
          Departments of Internal Medicine and Clinical Physiology, University Hospital, Umeå, Sweden; Department of Internal Medicine, County Hospital, Boden, Sweden; Department of Internal Medicine, County Hospital, Luleå, Sweden
          Article
          174380 Cardiology 1988;75:241–249
          10.1159/000174380
          3167913
          © 1988 S. Karger AG, Basel

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          Page count
          Pages: 9
          Categories
          Original Paper

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