This post is an answer to the ECG Case 289
- Rate:
- Atrial rate 84 bpm
- Ventricular rate 42 bpm
- Rhythm:
- Regular atrial activity
- Regular ventricular activity
- 2:1 Pattern
- Axis: Normal (-33 deg)
- Intervals:
- PR – Normal (~200ms) – when conducted
- QRS – Normal (100ms)
- QT – 450ms
- Segments: No significant changes
- Additional: Relatively large T waves in leads II, aVF, V3 when compared with QRS voltage
Interpretation
2:1 AV Block
What happened next?
The patient was admitted under the cardiology team, no reversible causes were identified. During monitoring the patient had runs of Mobitz II 2nd Degree AV block and underwent an uneventful pacemaker insertion.
READ MORE: Conduction Blocks at the AV Node (AV Blocks) [With Examples]
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