Prolongation of the corrected QT interval in adult patients with anti‐Ro/SSA–positive connective tissue diseases

Abstract

Adult patients with anti-Ro/SSA-positive connective tissue diseases showed a high prevalence of QTc interval prolongation. This feature, with the concomitant abnormalities in the autonomic tone and ventricular late excitability observed in all patients studied, suggests that anti-Ro/SSA-positive patients may have a particularly high risk of developing life-threatening arrhythmias.