Patients with atrial flutter (AFL) and impaired left atrial appendage (LAA) function are also potentially at high risk for thromboembolism and might therefore require anticoagulation [7] . Approximately 90% of atrial thrombi in non-rheumatic AF are found in the LAA [8] .

Do you need anticoagulation with atrial flutter?

Most patients with atrial flutter should be considered for chronic anticoagulation in a manner similar to those with atrial fibrillation (AF). This recommendation is based not only on the fact atrial flutter carries a risk for systemic embolization but also that these patients usually have episodes of AF.

Can atrial flutter cause blood clots?

Although atrial flutter is usually not life-threatening at first, it does limit how well your heart pumps blood. This can cause a clot to form in your heart.