Abstract

Atrial fibrillation (AF) is a common type of arrhythmia that increases significantly the risk of blood clots in the heart and of stroke. Therefore, stroke prevention is a key goal of AF treatment. In the past, patients were required to take anticoagulants for the remainder of their life, to regularly the monitor international normalized ratio (INR) of prothrombin time (PT), and to avoid possible negative interactions with various drugs and foods. Left atrial appendage occlusion (LAAO), a novel device and technique, was thus developed for AF patients with contraindications to anticoagulants and a high risk of bleeding. When using this technique, the occluder is placed on the left atrial appendage in order to effectively prevent blood stasis and thrombi accumulation. Transesophageal echocardiogram and computed tomography are conducted prior to the LAAO procedure, which is similar to the procedure used for cardiac catheterization. After the LAAO procedure, the patient remains in the intensive care unit (ICU), where vital signs, bleeding at the puncture site, and pericardial tamponade complications are monitored. Health education on daily activities, anticoagulant use, and regular follow-up should be given prior to hospital discharge. While LAAO may not reduce the incidence of stroke, the benefits of this procedure include a significant reduction in bleeding complications as compared to procedures that use oral anticoagulants. Further studies including long-term follow up and in-depth examinations of this procedure are necessary. The present article offers a reference for clinical staffs who are responsible for the care of patients treated using the LAAO procedure.

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