Mitral Valve — ECG/EKG Terminology

Definition: Valve between the left atrium and the left ventricle; also called the bicuspid valve.

Key Facts

• Left atrioventricular valve with two leaflets (anterior and posterior).
• Opens in diastole for LV filling and closes in systole to prevent backflow to LA.
• Mitral disease can cause atrial enlargement and pulmonary congestion.

ECG Connection: Mitral pathology may be associated with atrial fibrillation and P-wave abnormalities.

Why It Matters: A new irregular rhythm in structural valve disease may represent clinically significant decompensation.