Lyme carditis presenting as paroxysmal junctional tachycardia and complete atrioventricular block in an adolescent

• DOI: 10.1016/j.jelectrocard.2022.10.018
• Publication Date: 2022-11-04T07:29:33Z
• Authors: Cheyenne M. Beach; Eileen Stewart; Elisa Marcuccio; Lee Beerman; Gaurav Arora
• Keywords: Myocarditis; Electrocardiography; Lyme Disease; 03 medical and health sciences; 0302 clinical medicine; Adolescent; Tachycardia, Ectopic Junctional; Tachycardia, Ventricular; Humans; Atrioventricular Block; 3. Good health

We describe a case of a previously healthy adolescent who presented with junctional tachycardia and complete atrioventricular (AV) block due to Lyme carditis. The simultaneous presence of these findings suggested significant inflammation of the AV junction. Junctional tachycardia, particularly if seen in a patient with conduction abnormalities and potential tick exposure, should increase suspicion for Lyme carditis.