LAAO stands for left atrial appendage occlusion. It is a way to close off the left atrial appendage, a small pouch in the left upper chamber of the heart. LAAO is most commonly discussed for people with atrial fibrillation (AF) who need stroke prevention. It can be done with catheter-based devices or during heart surgery, depending on the case.

Left Atrial Appendage Occlusion is a way to close off a small pouch in the left atrium of the heart called the left atrial appendage. It is most commonly discussed for people with atrial fibrillation, a heart rhythm that can raise stroke risk. The goal is to reduce the chance that blood clots form in that pouch and travel to the brain. It can be done with catheter-based devices or with surgical techniques, depending on the situation.

Transcatheter Mitral Repair is a minimally invasive way to treat certain forms of mitral regurgitation (a leaking mitral valve). It uses catheters (thin tubes) inserted through blood vessels rather than open-heart surgery. It is most commonly performed in specialized heart valve centers with a dedicated “heart team.” It is often considered when symptoms persist and surgical risk is high or when anatomy is suitable for a catheter-based approach.

MitraClip is a catheter-based heart device used to treat certain types of mitral regurgitation (a leaky mitral valve). It is delivered through a blood vessel and attached to the mitral valve leaflets to help them close more effectively. It is commonly used in structural heart programs for people who are not ideal candidates for open-heart surgery. The approach is often described as transcatheter edge-to-edge repair (TEER) of the mitral valve.

TAVI stands for **transcatheter aortic valve implantation**. It is a **minimally invasive, catheter-based** way to replace the heart’s **aortic valve**. It is most commonly used to treat **aortic stenosis**, especially when symptoms or valve severity warrant intervention.

Transcatheter Aortic Valve Implantation is a minimally invasive procedure to replace a narrowed aortic valve without open-heart surgery. It is commonly used to treat severe aortic stenosis, a condition that restricts blood flow out of the heart. A new valve is delivered through a catheter (a thin tube), most often from an artery in the leg. Clinicians may also refer to it as TAVI (or sometimes TAVR), depending on regional terminology.