Atrioventricular (AV) Valves — ECG/EKG Terminology

Definition: The valves (tricuspid and mitral) that separate the atria from the ventricles.

Key Facts

• Includes tricuspid and mitral valves between atria and ventricles.
• Open in diastole and close in systole to preserve forward flow.
• Regurgitation or stenosis can cause atrial dilation and rhythm disorders.

ECG Connection: Atrial enlargement from AV valve disease can change P-wave morphology and rhythm stability.

Why It Matters: Telemetry changes can be an early sign of hemodynamic worsening in AV valve disease.