cardiovascular disorders
Atrial Flutter
Key Points
Atrial flutter is a rapid, regular atrial rhythm that rarely may cause an irregular or nontachycardic QRS response, depending on the degree and type of block present. After initial rate control with medications such as beta-blockers and nondihydropyridine calcium channel blockers (eg,verapamil,diltiazem), most patients should have synchronized cardioversion. Anticoagulation is necessary before cardioversion. Long-term oral anticoagulation to prevent stroke is required for patients with chronic or recurrent atrial flutter. 