ECG Case 282 Interpretation

This post is an answer to the ECG Case 282

  • Rate: 60 bpm
  • Rhythm:
    • Regular
    • A-paced rhythm
      • Atrial pacing spike with subsequent atrial depolarization P wave
      • QRS Complexes conducted in native pattern via AV node

  • Axis: Normal
  • Intervals:
    • PR – Normal (~200ms)
    • QRS – Normal (100ms)
    • QT – 440ms (QTc Bazette 440 ms)
  • Segments:
    • ST Elevation <1mm in lead aVR
    • ST Depression in leads II, V4-6
  • Additional:
    • Biphasic T wave in lead V3
    • T wave inversion in leads I, aVL, V4-6
    • Borderline LVH by voltage criteria

Interpretation

ST Segment changes in lateral/high lateral leads.

Differentials

  • ACS
  • T wave memory
    • Potential for ST / T wave changes to be due to a period of V-paced rhythm
  • Secondary to LVH
  • Drug effects especially digoxin although not typical appearance

What happened next ?

The patient was admitted under the Rehab team and had a troponin raise, following discussion with cardiology the patient was deemed for medical management only.

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