Ocena EKG i parametrów holterowskich u pacjentów z zapaleniem wielomięśniowym i skórno-mięśniowym

Abstract

Introduction. The aim of our study was to determine the electrocardiography (ECG) and holter abnormalities among patients with dermatomyositis (DM) or polymyositis (PM). Material and methods. We examined 19 patients with PM and 11 patients with DM (23 females) and 30 healthy subjects (22 females). Mean disease duration was 6.5 ± 4.7 years. ECG parameters (QRS, PQ, P wave, conduction disturbances) and heart rate variability data, QT/QTc, ventricular extra beats, creatine kinase, aldolase and lactate dehydrogenase activities were assessed. Results. We did not observe any statistically significant differences in parameters assessing the autonomic system function, the QT/QTc, ventricular rhythm disorders. Intraventricular conduction disturbances were observed in 16.6% of patients with PM/DM. Finally, there were significant differences when comparing enzyme activities. Higher enzyme activities in DM/PM did not correlate with the diurnal variability of cardiac rhythm. Conclusions. This suggests no tendency of DM and PM to involve the autonomic nervous system. Conduction disturbances in DM and PM affect mainly the His-Purkinje system.