Atrial flutter

Atrial flutter, abbreviated as AFL, refers to an abnormality in the electrical signal conduction pathway in the right atrium, leading to an excessively fast atrial heartbeat. The frequency of ectopic atrial pacemakers reaches 250-350 beats/minute, and atrial contractions are rapid and coordinated. It is a type of tachyarrhythmia that falls between atrial tachycardia and atrial fibrillation. It is commonly seen in organic heart diseases such as rheumatic heart disease, coronary heart disease, hypertensive heart disease, and cardiomyopathy. Some patients have no obvious symptoms, while most experience palpitations, shortness of breath, and anxiety. Atrial flutter can induce angina pectoris and congestive heart failure, and can also lead to atrial thrombi, resulting in systemic embolism.