title: Lyme Carditis in the Fast Lane: From Alternating Bundle Branch Block to Asystole in 12 Hours.
abstract: Lyme borreliosis is a multisystem infectious disease with well-known cardiac involvement, including potential carditis as well as conduction abnormalities. We report a case of Lyme disease in a previously healthy 24-year-old male presenting with alternating right- and left-bundle branch block, indicating infra-Hisian atrioventricular (infra-His) block with an accelerated fascicular escape rhythm. Inless than 12 hours, the conduction abnormalities progressed to asystole requiring the urgent placement of a temporary transvenous pacemaker. Subsequently, with appropriate antibiotic treatment, the patient's conduction abnormalities resolved in a week without the need for a permanent pacemaker.
authors.forename: Sara
authors.initials: S
authors.lastname: Khalil
authors.forename: Santosh K
authors.initials: SK
authors.lastname: Padala
authors.forename: Chui Man Carmen
authors.initials: CM
authors.lastname: Hui
authors.forename: David A
authors.initials: DA
authors.lastname: Steckman
authors.forename: Mandeep S
authors.initials: MS
authors.lastname: Sidhu
authors.forename: Mikhail T
authors.initials: MT
authors.lastname: Torosoff
mesh_terms: D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002037:Bundle-Branch Block / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D002304:Cardiac Pacing, Artificial; D002443:Ceftriaxone / Q000627:therapeutic use; D004562:Electrocardiography; D006323:Heart Arrest / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008193:Lyme Disease / Q000150:complications* / Q000188:drug therapy; D008297:Male; D055815:Young Adult
chemical_list: D000900:Anti-Bacterial Agents; D002443:Ceftriaxone