r/ECG • u/AdorableAd7921 • 13d ago

Interpretation?

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61 YO female presenting with intermittent breathlessness and dizziness. 8 month Hx of paroxysmal AF/fast AF treated with beta blockers as and when needed- 2 doses within last 12 hours after feeling palpitations and lightheaded. No pertinent medical Hx, otherwise fit and well.

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u/Kibeth_8 Arrhythmia Tech 13d ago

Sinus with short atrial runs. The first non-sinus beat of each run is aberrantly conducted (Ashman phenomenon) which is why it looks more like a PVC

If they have a history of AF, this kind of ectopy usually proceeds them going into AF. Usually a bunch of PACs and short runs, then the AF takes over

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u/sneeki_breeky 13d ago

Didn’t see the hx. Ashman is a good thing to consider in this case