Exploring Posterior and Septal STEMI: Posterior STEMI: Posterior STEMI often accompanies inferior or lateral infarctions and can be tricky to diagnose due to its subtle presentation on a standard 12-lead ECG. Key indicators include: - Standard 12-lead ECG: Look for ST-segment depression in the anteroseptal leads (V1-V3). - Posterior Leads (V7-V9): Confirm with ST-segment elevation in these leads. - Clinical Features: May include **hypokinesis and akinesis in the posterior segments of the left ve