irregularly irregular rhythmLVHMultifocal Atrial Tachycardia (MAT)subendocardial ischemia7 Min Read Magnus NossenonOctober 11, 2026 Is this OMI, Subendocardial ischemia, LVH, or some combination? Written by Magnus Nossen. An ECG was obtained from an elderly male nursing home resident who was referred to the emergency department because…