This post is an answer to the ECG Case 272
- Narrow complex tachycardia rate ~162 bpm.
- Atrial activity visible in V1 with upright narrow wave which are inverted in the inferior leads.
- Irregularity noted in initial portion of the ECG and within leads aVR, aVL, aVF.
Differential Diagnosis
- Atrial Tachycardia
- Atrial Flutter
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