QT interval parameters, anti-Ro antibody status, and disease activity in systemic lupus erythematosus
Background: The QT interval a marker of ventricular depolarization and repolarization is reported to be prolonged in some proportion of patients with systemic lupus erythematosus (SLE). We studied electrocardiographic (ECG) abnormalities, in particular QT interval and its relationship with anti-Ro antibodies, disease activity, and serum interleukin 1β (IL-1β), interleukin 6 (IL-6) in SLE.