Interpolated PVC


Overview

  • PVC that occurs between two normal sinus beats without a compensatory pause
  • The PVC “interpolates” between regular sinus beats, so the overall RR interval stays nearly unchanged
  • Most commonly seen when the sinus rate is slow enough that the PVC does not reset the SA node

EKG

  • Wide, premature QRS occurring between two normal QRS complexes
  • No compensatory pause (unlike typical PVCs)
  • Regular RR intervals before and after the PVC