A 65-year-old man was presented to ED at 1 am with 90 mins of central chest pressure that awoke him from sleep. He feels that the discomfort is due to 'indigestion'. He reports radiating pain, mild shortness of breath but no nausea, vomiting or diaphoresis. He was a heavy ex-smoker. There is no previous history of diabetes, hypertension or high cholesterol.

Examination Heart rate: 54 bpm Blood pressure: 127/86 Oxygen saturations: 98% on room air His ECG was acquired. What is the most significant finding on the ECG? *This case is from Docplexus editorial team for educative purpose only. Source: Life In The Fast Lane