ECG of the Week - 22nd December 2014

This week's ECG is from a 36yr old male. He presented to the Emergency Department with a non-cardiac issue but an ECG was performed due to a pre-existing cardiac history.
Thanks to Dr Fiona Beattie was sharing this ECG case.

Click to enlarge

Things to think about

• What are the abnormalities seen on this ECG ?
• What are the broad differentials for this ECG pattern ?
• What cardiac condition do you think the patient has ?