left posterior hemiblock

List the diagnostic criteria for left posterior hemiblock:

  • right axis deviation or extreme right axis deviation
  • deep S wave in I and aVL
  • qR configuration in II, III, aVF
  • a 45 ms delay in the upper transition point in aVF
  • QRS-complex duration of <110ms

Ready to Master your ECG Skills ?

This is just a taste of our ecg course. Unlock your full course now !

`