LAA is the most prominent site of LA thrombus formation, with more than 90% of thrombi generating within this anatomical structure [10]. Extra-appendage thrombosis is a very rare finding in non-valvular AF and, when present, an LAA thrombus is usually concomitant [11].

Practices regarding indications and timing for transoesophageal echocardiography (TOE) before cardioversion (CV) of atrial fibrillation (AF) or left atrial (LA) interventional procedures, and preferred imaging techniques and pharmacotherapy, in cases of thrombus resistant to chronic oral anticoagulation (OAC) treatment, are largely unknown.

Left atrial appendage thrombus occurs when blood coagulates in this tiny pocket, putting a person at risk for cerebral stroke or peripheral embolism. LAA thrombus is most commonly diagnosed with a transesophageal echocardiogram. Cardiac MRI and Doppler imaging are less invasive diagnostic approaches currently being explored.

The roles of percutaneous and surgical left atrial appendage occlusion (LAAO) in patients with atrial fibrillation (AF) are discussed here. AF is a common cause of embolic stroke and other thromboembolic complications. The LAA is a primary source for thromboembolism in AF.

2018年8月9日 · This study revealed an LAA thrombus (Figure 2A), as well as a large left interpolar renal infarct (Figure 2B) and a 3-dimensional spin of the LAA, showed a cauliflower morphology (Figure 3). He was started on therapeutic anticoagulation with unfractionated heparin in parallel with warfarin with a goal international normalized ratio of 2 to 3.

The left atrial appendage is the most common site for cardiac thrombus. It is anatomically attached to the left inferior portion of the left atrium and consists of muscular trabeculae.

Left atrial appendage thrombus (LAAT) is the main cause of cardioembolism in patients with nonvalvular atrial fibrillation (AF). Emerging evidence indicates that direct oral anticoagulants (DOACs) may be a preferred, safer choice for patients with LAAT.

2024年10月26日 · Left atrial appendage thrombus is a site of intra-cardiac thrombus and refers to the presence of thrombus within the left atrial appendage. The left atrial appendage is considered the main location of thrombus formation, predominantly in …

Intracardiac thrombus in the left atrium and atrial appendage (LA/LAA) and left ventricle (LV) increases the risk of systemic thromboembolism and causes potentially devastating diseases such as ischemic stroke and acute ischemia in abdominal organs and lower extremities.

In the presence of AF thrombus, formation often occurs within the LAA because of reduced contractility and stasis; thus, attention should be given to the LAA when evaluating and assessing patients with AF to determine the risk for cardioembolic complications. It is clinically important to understand LAA anatomy and function.