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Left atrial appendage exclusion for stroke prevention in patients with nonrheumatic atrial fibrillation

Atrial fibrillation is a common rhythm disorder, which is related to a higher risk of thrombembolism resulting in a high rate of cerebral stroke or transient ischemic attacks. According to the CHADS2- or CHA2DS2Vasc-Score there is an indication for oral anticoagulation to prevent patients from mostly disabling strokes. However, more than 50% of patients are not adequately treated with oral anticoagulation due to different reasons, especially contraindications.

More than 90% of thrombi develop in the left atrial appendage (LAA), which lead to the idea of developing devices to exclude the LAA from the systemic circulation to prevent patients from embolisations. Another approach is surgical ligation or removal of the LAA during operation procedures.

Credits: Dr. Peter B. Sick

Biosense Webster
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Introduction to AFib
Ablation Specialist

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