Early Onset Lyme Myopericarditis With Left Ventricular Dysfunction and Mitral Regurgitation

Area of Science:

• Cardiology
• Infectious Diseases
• Medical Case Reports

Background:

• Lyme carditis is a rare manifestation of early disseminated Lyme disease, affecting approximately 0.5% of cases.
• Common clinical presentations include arrhythmias and conduction abnormalities, typically appearing 1-2 months post-infection.
• Left ventricular dysfunction and valvular involvement are exceedingly rare complications.

Observation:

• This report details a case of Lyme carditis occurring shortly after a known tick bite.
• The patient presented with left ventricular dysfunction and valvular involvement.
• This presentation is unusual due to its rapid onset and specific cardiac manifestations.

Findings:

• The case demonstrates that Lyme carditis can manifest with severe cardiac dysfunction, including left ventricular impairment and valvular issues.
• The rapid onset suggests a potential for swift progression of the disease's cardiac impact.
• This presentation underscores the variability in Lyme carditis presentation.

Implications:

• Prompt diagnosis and treatment of Lyme carditis are crucial to prevent severe outcomes like acute heart failure and sudden cardiac death.
• This case expands the understanding of Lyme carditis's potential clinical spectrum, particularly concerning cardiac structure and function.
• Healthcare providers should maintain a high index of suspicion for Lyme carditis in patients with relevant exposure history and cardiac symptoms.