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Numbering Abberant Rhythms




These descriptors can increase depending on the number of beats involved in the abnormal system. If every other beat is abnormal, you can describe it as bigeminal. If every third beat is abberant it is trigeminal, every fourth it would be quadrigeminal. Typically if every fifth or more beat is abnormal, the abberant beat would be termed occasional.

Bigeminy is contrasted with Couplets which are paired abnormal beats. If these concurent beats number three or more, they are considered salvo's which could also be described as a run of '' Ventricular Tachycardia ''.

PVC's are not the only abberant beat that makes use of these adjectives, others are Premature Atrial Complexes , Parasystole , and Escape Complexes .


EXAMPLES

  • Bigeminal PVCs: Normal, PVC, Normal, PVC...

  • Trigeminal PACs: Normal, Normal, PAC, Normal, Normal, PAC...

  • Occasional Escape Complexes : Normal, Normal, Normal, Normal, Pause, Escape...


  • Bigeminal Couplets: Normal, Normal, PVC, PVC, Normal, Normal, PVC, PVC...

  • Bigeminal Salvos: Normal, Normal, PVC, PVC, PVC, PVC, Normal, Normal, PVC...