Fever + new murmur = infective endocarditis until proven otherwise

Causes/Factors

Organisms - most common

  • Strep viridans (subacute)
  • Staph aureus (most common amongst IVDU)
  • Strep bovis
  • Chlamydia
  • Candida

Symptoms

  • Fever
  • Fatigue
  • Janeway lesions & Osler’s nodes - due to vegetations embolising
  • SoB

Signs

  • Septic signs - fever, rigors, night sweats
  • Cardiac lesions
  • Petechiae

Diagnostic Tests

  • Blood cultures
  • ECG - ST changes
  • FBC

Management

  1. IV-antibiotics - flucloxacillin standard but depends on organism
  2. Surgery if Heart Failure, valvular obstruction, repeated emboli, fungal

Complications/red Flags

  • Heart valve damage
  • Embolisms - clumps of infected material can break off and travel through the bloodstream
  • Heart Failure - heart valve dysfunction can lead to Heart Failure