Premature Ventricular Complexes (PVC's) - Ventricular Rhythms


Description 1

  • PVC rhythms may occur for a number of different reasons i.e., diet, fatigue, stress, disease, ischemia to name a few.
  • Premature complexes frequently occur in bradycardic rhythms, but may occur almost any time.
  • PVC’s occur when an early electrical impulse occurs from a location in either ventricle.

pvc ecg image 6

Description 2

  • This early impulse causes an early cardiac complex which disrupts the underlying rhythm.
  • The locus of stimulation being different, results in a change in the morphology of the cardiac complex.
  • Note the absence of P wave and the wide, bizarre QRS complex.
  • PVC’s can occur occasionally or frequently.
  • PVC’s can be observed with or without a pattern
pvc on ecg strip 109

PVC EKG Strip

nsr with pvc ecg image 110

Analyze this tracing using the five steps of rhythm analysis.

Show Answer
  • Rhythm: Irregular
  • Rate: 60
  • P Wave: upright and uniform, absent on early complex
  • PR interval: 0.16 sec
  • QRS: 0.08 sec, early complex wide and bizarre 0.16 sec
  • Interpretation: Sinus Rhythm (NSR) with PVC




Authors and Sources

Authors and Reviewers


Sources




? v:0 | cc: US | tar: False | onAr:0 | onPs:2 | tLb:0 | tLbJs:0
pv: 1 uStat: False | db:0 | shouldInvoke:False | pu:False | ads: True | firstPage? True
| em: | statusStg: | cDbLookup# 0 | n? True | i? True
| i: 59879652 | iParam: 0 | np: 1891157004 | hid: 05714e48769c8bbdf12245625ae1aac8b114087e5591ba8c8105a3c35120f712 | debug: | p:





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