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Anti-Sm Antibody, Damage Index, and Corticosteroid Use Are Associated with Cardiac Involvement in Systemic Lupus Erythematosus: Data from a Prospective Registry Study

Journal of Korean Medical Science 2020년 35권 21호 p.139 ~ 139
최정윤, 이신석, 곽상규, 김성규,
소속 상세정보
최정윤 ( Choe Jung-Yoon ) - Catholic University of Daegu School of Medicine Department of Internal Medicine
이신석 ( Lee Shin-Seok ) - Chonnam National University Hospital Department of Rheumatology
곽상규 ( Kwak Sang-Gyu ) - Catholic University of Daegu School of Medicine Department of Medical Statistics
김성규 ( Kim Seong-Kyu ) - Catholic University of Daegu School of Medicine Department of Internal Medicine

Abstract


Background: Disease-specific factors that predispose patients to diverse cardiac diseases in systemic lupus erythematosus (SLE) have been established. The aim of this study was to identify risk factors for cardiac involvement in patients with SLE drawn from the Korean Lupus Network (KORNET) registry.

Methods: A total of 437 patients with SLE recruited from the KORNET registry were included in the analysis. The Cox proportional hazard model was used to identify risk factors for the development of cardiac involvement during the follow-up period. The hazard ratios for risk factors of cardiac involvement were assessed using Kaplan-Meier curves and log-rank test.

Results: Of 437 patients with SLE, 12 patients (2.7%) developed new cardiac involvement during a median follow-up period of 47.6 months. Frequencies in men and in patients with anti-Sm antibody, anti-Ro antibody, and at least one Systemic Lupus International Collaborating Clinics/American College of Rheumatology damage index (SDI) score in patients with cardiac involvement were higher, compared to those without cardiac involvement (P < 0.001, P = 0.026, P = 0.015, and P < 0.001, respectively). Men gender, older age, anti-Sm antibody, SDI, and corticosteroid dosage were potent predictors for cardiac involvement in patients with SLE in the determination of risk factors for cardiac involvement. Men, anti-Sm antibody positivity, and SDI ≥ 1 increased incidence rates of cardiac involvement for (P < 0.001, P = 0.036, and P < 0.001, respectively).

Conclusion: The results of this study reveal that SLE-related factors such as anti-Sm antibody, SDI, and corticosteroid dosage at baseline are risk factors for cardiac involvement in SLE.

키워드

Systemic Lupus Erythematous; Cardiovascular Disease; Autoimmunity; Steroid

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