Sainte-Beuve C, Victor J, Penisson I, Tadei A
Laboratoire de physiologie et d'explorations fonctionnelles, hôpital Jean-Verdier, UFR Bobigny, Bondy.
Arch Mal Coeur Vaiss. 1994 Sep;87(9):1241-5.
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.
皮肌炎和多肌炎心脏并发症的患病率通常被低估。作者报告了一例以房室结心脏传导阻滞为该病首发症状的病例。起初为阵发性，最终发展为永久性。它与心房（颤动和扑动）和心室过度兴奋（阵发性室性心动过速）有关。心肌活检为心脏疾病以及结性传导缺陷与多肌炎之间的确切联系提供了组织学证据。
