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Related Experiment Videos

Acute reversible diffuse conduction system disease due to Lyme disease.

D A Rubin1, C Sorbera, S Baum

  • 1Division of Cardiology, Westchester County Medical Center, Valhalla, NY 10595.

Pacing and Clinical Electrophysiology : PACE
|November 1, 1990
PubMed
Summary

Lyme disease can cause temporary heart block and bundle branch block in adults. Antibiotic treatment effectively resolved these cardiac issues, suggesting reversible His-Purkinje system involvement.

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Area of Science:

  • Cardiology
  • Infectious Diseases
  • Electrophysiology

Background:

  • Lyme disease, a tick-borne illness, can affect multiple organ systems.
  • Cardiac involvement in Lyme disease can manifest as atrioventricular block.

Observation:

  • A 56-year-old man with acute Lyme disease presented with complete heart block and alternating left and right bundle branch block.
  • Electrophysiological studies showed significant HV interval prolongation, indicating His-Purkinje system dysfunction.

Findings:

  • The patient's complete heart block and bundle branch block resolved completely following antibiotic therapy.
  • This resolution suggests a reversible nature of the cardiac conduction abnormalities.

Implications:

Related Experiment Videos

  • Lyme disease should be considered in the differential diagnosis of new-onset heart block, particularly in endemic areas.
  • Prompt diagnosis and treatment of Lyme carditis can prevent long-term cardiac sequelae.