3 doctors weighed in:
What causes clots in patients with atrial fibrillation?
3 doctors weighed in

Dr. John Garner
Internal Medicine - Cardiology
1 doctor agrees
In brief: Standstill
The extremely rapid rates of atrial fibrillation are in fact so fast that they create two problems: the top chamber is not mechanically moving very far at all, so it cannot shake clots loose, and the overactive atrial tissue secretes chemicals which increase the likelihood of clot formation.
These processes come together to substantially increase stroke risk.

In brief: Standstill
The extremely rapid rates of atrial fibrillation are in fact so fast that they create two problems: the top chamber is not mechanically moving very far at all, so it cannot shake clots loose, and the overactive atrial tissue secretes chemicals which increase the likelihood of clot formation.
These processes come together to substantially increase stroke risk.
Dr. John Garner
Dr. John Garner
Thank
Dr. Mark Landers
Cardiology - Cardiac Electrophysiology
In brief: AF clots
The rapid rhythm in the upper chamber (atrium) cause a stagnation of blood flow through it - it beats too fast to force the blood through it efficiently.
Because of this, the left atrial appendage (laa) is the area where >90% of the clots form in af. Clots in the laa break off and flow out of the heart and can cause a stroke. Anticoagulation - blood thing medications - reduce this risk.

In brief: AF clots
The rapid rhythm in the upper chamber (atrium) cause a stagnation of blood flow through it - it beats too fast to force the blood through it efficiently.
Because of this, the left atrial appendage (laa) is the area where >90% of the clots form in af. Clots in the laa break off and flow out of the heart and can cause a stroke. Anticoagulation - blood thing medications - reduce this risk.
Dr. Mark Landers
Dr. Mark Landers
Thank
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