Left Atrial Appendage (LAA) coiling is a medical procedure aimed at reducing the risk of stroke in patients with atrial fibrillation (A Fib), a common heart rhythm disorder. In atrial fibrillations, the heart's upper chambers (atria) beat irregularly, leading to blood pooling and clot formation, particularly in the LAA, a small, ear-shaped sac in the muscle wall of the left atrium. These clots can travel to the brain, causing a stroke.
The procedure involves inserting a catheter through a vein in the groin and guiding it to the heart and into the LAA. Once in place, a device known as an LAA occluder is deployed. This device, often shaped like a coil or umbrella, is designed to seal off the LAA, preventing blood from entering and thus reducing the risk of clot formation. Over time, heart tissue grows over the device, permanently sealing off the LAA.
LAA coiling is typically recommended for patients with AFib who are at high risk for stroke but cannot take long-term anticoagulant medications due to bleeding risks or other contraindications. It's a minimally invasive alternative to longterm medication, offering a one-time solution to reduce stroke risk.
This procedure is performed under imaging guidance, usually fluoroscopy, to ensure accurate placement of the device. The success rate of LAA coiling is high, with most patients experiencing a significant reduction in stroke risk. The recovery period is relatively short, with many patients returning to their normal activities within a few days.
While LAA coiling is generally safe, it carries some risks, such as bleeding, infection, or damage to the heart or blood vessels. However, for many patients, the benefits of significantly reduced stroke risk outweigh these potential risks. As with any medical procedure, it's important for patients to discuss the risks and benefits with a medical specialist to determine if LAA coiling is the best option for their specific situation.