What Do You Think 13
Assoc Prof Harry Mond
March 12, 2025
74-year old blind professional hang glider.

What do you think?

- Sinus rhythm
 - Ventricular stimulus artefacts (red arrows)with paced QRS complexes (red highlight).
 - Ventricular ectopics in bigeminy
 
Dual chamber pacing and ventricular bigeminy
What did I learn?
In any ECG, a left bundle branch block configuration is ventricular pacing until proven otherwise.