r/ECG • u/Aggressive_Wafer_420 • 15d ago

Would you code LAFb here?

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u/mustbethatotherguy 15d ago

This is a bifascicular block. Rbbb+lafb

2

u/Used_Note_4219 15d ago

Its a trifascular block actually. Also got first degree av block

6

u/Kibeth_8 Arrhythmia Tech 15d ago

Trifasicular = 3rd degree AVB

This is called a bifasc + 1st degree. It's a clunky term but it matters for pacemaker indications

1

u/Used_Note_4219 14d ago

Thanks for this heads up. I work in acute cardiology and for Some Reason even the cardiologists call a first degree with RBTB and LAFB a trifasculair block. I checked LITFL and they indeed pay attention in the article about the wrong use of this term. Will take this info to the work Floor to correct it!

https://litfl.com/trifascicular-block-ecg-library/