Epidemiology


Etiology


Pathophysiology


Clinical features


  • Highly variable presentation, often in a young pt.
  • Frequently preceded by a viral prodrome (fever, myalgias, URI Sx).
  • Chest Pain: Can be pleuritic (suggesting concomitant pericarditis) or anginal-like.
  • Heart Failure Sx: Dyspnea, orthopnea, peripheral edema due to systolic dysfunction.
  • Arrhythmias: Palpitations, syncope, or sudden cardiac death (SCD).
    • Lyme carditis is notorious for causing AV block.

Diagnostics


Endomyocardial biopsy

  • Myocyte necrosis (may be focal)
  • Inflammatory cell infiltrate (e.g., lymphocytic)

Treatment


Complications