This post is an answer to the ECG Case 249
- Rate:
- Ventricular rate ~136 bpm
- Atrial rate ~ 270 bpm
- Rhythm:
- Regular atrial & ventricular activity
- Atrial activity best seen in leads I & V1
- Notching in terminal portion of QRS and also in isoelectric segment
- Axis: LAD
- Intervals:
- QRS – Prolonged (140ms)
- QT – 310ms
- Segments:
- Appropriate ST segment & T wave discordance
- Sgarbossa Negative
- Additional:
- Typical LBBB Morphology
Interpretation
- Regular Wide Complex Tachycardia
- Evidence of 2:1 conduction
- Likely Atrial Flutter or atrial tachycardia
- LBBB Morphology
- DDx – Native, rate related or aberrancy
READ MORE: Atrial Flutter: ECG Interpretation [With Examples]
SIMILAR CASES:
