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ecg_rbbb

Right Bundle Branch Block (RBBB)

RBBB

  • aetiology:
    • normal variant
    • IHD
    • HT
    • RhHD
    • CHD esp. ASD, VSD, Fallot's tetralogy
    • pericarditis, myocarditis
    • cor pulmonale
    • cardiomyopathy
    • Brugada syndrome - if associated ST elevation V1-2 - potentially fatal in young people
    • Chaga's disease
    • endomyocardial fibrosis
    • other conditions
  • ECG features:
    • QRS > 0.10sec and slurred S in leads I, V5/6
      • M-shaped pattern in V1
    • unlike LBBB, usually does not interfere with ECG Dx of AMI
ecg_rbbb.txt · Last modified: 2009/09/30 08:50 (external edit)