The goal of this study is to determine whether anti-Ro/SSA antibodies are associated with
acquired QT prolongation in subjects with connective tissue disease. The investigators will
investigate whether gender or race influence correlation between anti-Ro antibody status and
prolonged QT interval and the role of inflammatory cytokines in association with anti-Ro
antibodies and QT prolongation. The investigators propose to add an additional objective to
test whether QT prolongation is reversible with moderate doses of prednisone in patients with
QT interval greater than 500 msec.