The T-waves in V5 and V6 make this diagnostic of coronary occlusion. They are far too tall and fat to be normal. They are hyperacute.
Heart Attack
ACLS Revision: Posterior STEMI is 10% of all STEMIs and the most missed STEMI for cathlab (NOT FIBRINOLYSIS) up to 30% of the time
Don’t be fooled and think this is anterior ischemia. Get a posterior ECG to confirm (Amal Mattu @amalmattu).
ACLS Revision: Supplemental oxygen therapy in patients with STEMI but without hypoxia may increase early myocardial injury…
… and was associated with larger myocardial infarct size assessed at six months.
Air Versus Oxygen in ST-Segment Elevation Myocardial Infarction.
Stub D, Smith K, Bernard S, et al.; AVOID Investigators. Circulation 2015: 22. pii: CIRCULATIONAHA.114.014494. [Epub ahead of print]