European Heart Rhythm Association score of atrial fibrillation
The European Heart Rhythm Association score of atrial fibrillation is a classification system for the extent of atrial fibrillation. It places patients in one of four categories based on how much they are limited during physical activity; the limitations/symptoms are in regard to normal breathing and varying degrees in shortness of breath and/or angina.
| EHRA Class | Symptoms |
| I | No symptoms. |
| II | Mild symptoms; normal daily activity not affected. |
| III | Severe symptoms; normal daily activity affected. |
| IV | Disabling symptoms; normal daily activity discontinued. |
The classification system is named after the European Heart Rhythm Association.