Lyme carditis presenting as sick sinus syndrome

Published Date
Journal
Journal of Electrocardiology
Citation
59:65-67
DOI
10.1016/j.jelectrocard.2020.01.007
Authors
Gazendam N
Yeung C
Baranchuk A
Abstract

Lyme disease, a tickborne infection caused by Borrelia burgdorferi, can affect cardiac tissue causing Lyme carditis. Patients with Lyme carditis most commonly present with varying degrees of atrioventricular block and rarely with sick sinus syndrome. A previously healthy 22 year-old male presented with syncope. His 2 week Holter monitor showed sinus pauses of 6.5 and 6.8 s. Lyme serology, including Western blot, was positive. A stress test, completed after 8 days of intravenous antibiotics for Lyme carditis, revealed no conduction abnormalities. He was discharged on 3 weeks of oral antibiotics and had no conduction abnormalities on subsequent follow-up.

Keywords: Lyme carditis; Lyme disease; Sick sinus syndrome; Sinus pauses.