Seeks, finds, threats: Lyme disease!

Am J Emerg Med. 2015 Feb;33(2):307.e5-6. doi: 10.1016/j.ajem.2014.07.019. Epub 2014 Jul 31.


Lyme borreliosis is a disease commonly found in humans. Here we report the case of a young, healthy girl presenting with symptomatic first- and second-degree atrioventricular blocks secondary to cardiac myocarditis. The disappearance of the conduction anomaly after antibiotic treatment confirmed Lyme disease before the results from the serology. Therefore, when a healthy, young person suddenly presents with an atrioventricular conduction block, physicians should consider a diagnosis of Lyme disease.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Anti-Bacterial Agents / therapeutic use
  • Atrioventricular Block / etiology*
  • Atrioventricular Block / microbiology
  • Atrioventricular Block / physiopathology
  • Ceftriaxone / therapeutic use
  • Electrocardiography
  • Emergency Service, Hospital
  • Female
  • Humans
  • Lyme Disease / complications
  • Lyme Disease / diagnosis*
  • Lyme Disease / drug therapy
  • Remission Induction


  • Anti-Bacterial Agents
  • Ceftriaxone