Left atrial appendage obliteration: Quo vadis?
نویسندگان
چکیده
منابع مشابه
Obliteration of the left atrial appendage for prevention of thromboembolism.
Shaped like a wizard’s hat but long considered functionally insignificant, the conical, trabeculated left atrial appendage (LAA) arises from the embryonic left atrium during the third week of gestation and extends superiorly from the anterolateral surface of the left atrium (1). This accessory chamber extends over an area of 3 to 6 cm, is more compliant than the atrium, and is actively contract...
متن کاملA Semi-Automated Algorithm for Segmentation of the Left Atrial Appendage Landing Zone: Application in Left Atrial Appendage Occlusion Procedures
Background: Mechanical occlusion of the Left atrial appendage (LAA) using a purpose-built device has emerged as an effective prophylactic treatment in patients with atrial fibrillation at risk of stroke and a contraindication for anticoagulation. A crucial step in procedural planning is the choice of the device size. This is currently based on the manual analysis of the “Device Landing Zone” fr...
متن کاملThoracoscopic extracardiac obliteration of the left atrial appendage for stroke risk reduction in atrial fibrillation.
OBJECTIVES We evaluated left atrial appendage obliteration in high-risk patients with atrial fibrillation (AF). BACKGROUND Left atrial appendage thrombosis and embolization is the principal mechanism of stroke in AF. Anticoagulation is underutilized and often contraindicated. METHODS Thoracoscopic Left Appendage, Total Obliteration, No cardiac Invasion (LAPTONI) was undertaken with a loop s...
متن کاملLeft Atrial Appendage Remodeling After Lariat Left Atrial Appendage Ligation.
BACKGROUND Left atrial appendage (LAA) ligation with the Lariat device is being used for stroke prevention in atrial fibrillation. Residual leaks into the LAA are commonly reported after the procedure. Little is known about the anatomic LAA remodeling after Lariat ligation. METHODS AND RESULTS In an exploratory study, we evaluated LAA 3-dimensional geometry via computed tomographic scan in 31...
متن کاملLeft atrial appendage closure.
Stroke prevention is the primary goal in atrial fibrillation (AF) given its clinical and socioeconomic impact. With AF, the prevalence of thromboembolic stroke continues to rise and there is an urgent need to develop better strategies of stroke prevention. Warfarin, although effective when used appropriately, is burdened by underutilization, narrow therapeutic windows, and life-threatening blee...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2019
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2018.10.074