ECG of the Week - 26th May 2014

These ECGs are from a 60 yr old male who presented with 2 hours of chest pain. Previously fit and well. No regular medications.
These serial ECGs were performed over a 20-30 minute time frame. The first three ECGs were performed whilst chest pain was ongoing with the final ECG performed with the patient pain free.

Initial ECG

Second ECG

Third ECG
Posterior lead configuration

Fourth ECG
Pain free