Saturday, 25 February 2012

Complete Heart Block

A 70 year old man with exercise intolerance.


Complete Heart Block

  • P waves are not conducted to the ventricles because of block at the AV node. The P waves are indicated below and show no relation to the QRS complexes. They 'probe' every part of the ventricular cycle but are never conducted.
  • The ventricles are depolarised by a ventricular escape rhythm.

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