• Department of Rheumatology, the Central Hospital of Mianyang, Mianyang, Sichuan 621000, P. R. China;
YANGJing, Email: yangjing6525@163.com
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Objective To analyze the incidence of heart disease, its clinical manifestations and risk factors in patients with polymyositis (PM) and dermatomyositis (DM). Method We collected the clinical data of 138 PM (n=78) and DM (n=60) patients treated between January 2008 and March 2014, among whom there were 64 males and 74 females with an average age of (48.5±19.6) years old, and an average disease course of (84.5±6.9) months. We analyzed their incidence of heart disease, its clinical manifestations and the risk factors. Subsequently, we adopted single-factor analysis to analyze such factors as age, gender, disease course, kinds of disease, creatine kinase (CK), CK-MB, CK-MB/CK, troponin T, antinuclear antibodies, anti-SSA antibody, erythrocyte sedimentation rate, C-reactive protein, disease activity score, muscle force, pulmonary interstitial lesions and pulmonary artery hypertension. Results There were 59 (42.7%) patients with heart disease, 48 (34.8%) with abnormal electrocardiogram, and 52 (37.7%) with abnormal color Doppler ultrasound results. Logistics multiple factors regression analysis found that the course of the disease (OR=1.669, P=0.010), myositis disease activity score (OR=7.456, P<0.001), pulmonary interstitial lesions (OR=4.568, P=0.014) were risk factor for heart disease in PM/DM patients. Conclusions Long disease course duration, high myositis activity score and pulmonary interstitial lesions are strong predictors for heart damage in PM/DM patients.

Citation: DONGJian-ling, YANGJing, DENGDai-hua, LISi-yin, LIMin. Clinical Analysis of Heart Manifestations in Patients with Polymyositis or Dermatomyositis. West China Medical Journal, 2015, 30(9): 1613-1617. doi: 10.7507/1002-0179.20150463 Copy

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