differentiating between VT and SVT with aberrancy

  • wide, regular, monomorphic

  • SVT with aberrancy: conducted with bundle branch block

  • More Vs than As, QRS very wide

  • VT and then all of a sudden narrowed QRS
  • sinus node still firing beats. One of the beats perfectly timed with VT
  • Can only see with VT

  • fusion beat with very hard to see p wave
  • QRS much faster

  • ventricle seeing afib coming down at a nice rate, then you get few faster conductions from atrium. One of the sides of ventricle is not ready = bundle branch block.
  • Classic long and then short conduction. Short = early conduction beats that becomes wide

  • V1-V6 concordance