Abstract Number: 632 • 2015 ACR/ARHP Annual Meeting
Isolated Atrioventricular Block of Unknown Origin in the Adult and Autoimmunity: Diagnostic and Therapeutic Considerations Exemplified By Three Anti-Ro/SSA-Associated Cases
Background/Purpose: Circulating anti-Ro/SSA antibodies may rarely affect the adult conduction-system. A direct autoantibody-mediated electrophysiological inhibition of cardiomyocyte calcium-channels (acquired form) or an ante-natal subclinical injury…