title: [Arrhythmia and conduction defects in polymyositis].
abstract: The prevalence of cardiac complications of dermatomyositis and polymyositis is generally underestimated. The authors report the case of heart block as the presenting symptom of the disease, situated in the atrioventricular node. Initially paroxysmal, it eventually became permanent. It was associated with atrial (fibrillation and flutter) and ventricular hyperexcitability (ventricular tachycardia in runs). Myocardial biopsy provided histological proof of the cardiac disease and the definitive link between the nodal conduction defect and the polymyositis.
authors.affiliation: Laboratoire de physiologie et d'explorations fonctionnelles, hôpital Jean-Verdier, UFR Bobigny, Bondy.
authors.forename: C
authors.initials: C
authors.lastname: Sainte-Beuve
authors.forename: J
authors.initials: J
authors.lastname: Victor
authors.forename: I
authors.initials: I
authors.lastname: Penisson
authors.forename: A
authors.initials: A
authors.lastname: Tadei
mesh_terms: D000328:Adult; D000638:Amiodarone / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000188:drug therapy / Q000209:etiology* / Q000503:physiopathology; D003882:Dermatomyositis / Q000150:complications* / Q000473:pathology; D004562:Electrocardiography; D004594:Electrophysiology; D005500:Follow-Up Studies; D006327:Heart Block / Q000188:drug therapy / Q000209:etiology* / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male; D011379:Prognosis
chemical_list: D000638:Amiodarone
vernacular_title: Troubles du rythme et de la conduction et polymyosite.