scholarly journals The Role of the Left Atrial Appendage. A Volume Loading Study in Open-chest Dogs.

1995 ◽  
Vol 36 (2) ◽  
pp. 225-234 ◽  
Author(s):  
Tatsuya HONDO ◽  
Mitsunori OKAMOTO ◽  
Tetsuya YAMANE ◽  
Takuji KAWAGOE ◽  
Shinji KARAKAWA ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage ◽  
Volume Loading ◽  
Open Chest

Stroke Prophylaxis by Percutaneous Closure of Patent Foramen Ovale and Left Atrial Appendage

2011 ◽  
Vol 6 (1) ◽  
pp. 67
Author(s):  
Antonio L Bartorelli ◽  
Claudio Tondo ◽  
◽  
Keyword(s):  
Left Atrial ◽  
Patent Foramen Ovale ◽  
Stroke Risk ◽  
Left Atrial Appendage ◽  
Cryptogenic Stroke ◽  
Atrial Appendage ◽  
Foramen Ovale ◽  
Percutaneous Procedures ◽  
Cerebrovascular Events

Innovative percutaneous procedures for stroke prevention have emerged in the last two decades. Transcatheter closure of the patent foramen ovale (PFO) is performed in patients who suffered a cryptogenic stroke or a transient ischaemic attach (TIA) in order to prevent recurrence of thromboembolic events. Percutaneous occlusion of the left atrial appendage (LAA) has been introduced to reduce stroke risk in patients with atrial fibrillation (AF). The role of PFO and LAA in the occurrence of cerebrovascular events and the interventional device-based therapies to occlude the PFO and LAA are discussed.

scholarly journals Safety and effects of volume loading during transesophageal echocardiography in the pre-procedural work-up for left atrial appendage closure

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Afonso B. Freitas-Ferraz ◽  
Mathieu Bernier ◽  
Kim O’Connor ◽  
Jonathan Beaudoin ◽  
Jean Champagne ◽  
...  
Keyword(s):  
Transesophageal Echocardiography ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage ◽  
Maximum Diameter ◽  
Volume Loading ◽  
Fluid Bolus ◽  
Work Up ◽  
Device Size ◽  
Laa Closure

Abstract Background In patients undergoing left atrial appendage (LAA) closure, an accurate sizing of the LAA is key to optimize device sizing, procedural success and reduce complications. Previous studies have shown that intraprocedural volume loading increases LAA dimensions and improves device sizing. However, the safety and effects on LAA and device sizing of administering a fluid bolus during pre-procedural transesophageal echocardiography (TEE) are unknown. The aim of this study was to determine the safety and impact on LAA dimensions and device sizing of an intravenous (IV) fluid bolus administered during TEE in the setting of the pre-procedural work-up for LAA closure. Methods The study included a total of 72 patients who underwent TEE to assess suitability for LAAC and received a 500 ml IV bolus of normal saline. The LAA landing zone (LZ) and depth were measured by TEE before and after volume loading, and these measurements were used to predict the device size implanted during a subsequent percutaneous LAAC procedure. Results There were no complications associated with volume loading. The baseline mean LZ was 19.6 ± 3.6 mm at 90o, and 20.2 ± 4.1 mm at 135o. Following fluid bolus, the maximum diameter increased 1.5 ± 1.0 mm at 90o (p<0.001), and 1.3 ± 1.0 mm at 135o (p<0.001). The baseline mean depth of the LAA was 26.5 ± 5.5 mm at 90o, and 23.9 ± 5.8 mm at 135o. After fluid bolus, the mean depth increased by 1.5 ± 1.8 mm (p<0.001) and 1.6 ± 2.0 (p<0.001), at 90o and 135o, respectively. Sizing based on post-bolus measurements of the LZ significantly improved the agreement with the final device size selection during the procedure in 71.0% of cases (vs. 42.0% with pre-bolus measurements). Conclusions Volume loading during ambulatory TEE as part of the pre-procedural work-up of LAAC is safe and significantly increases LAA dimensions. This strategy may become the new standard, particularly in centers performing LAAC with no TEE guidance, as it improves LAA sizing and more accurately predicts the final device size.

scholarly journals TCT-204 Role of Different Antithrombotic Regimens After Percutaneous Left Atrial Appendage Occlusion: A Large Single-Center Experience

2018 ◽  
Vol 72 (13) ◽  
pp. B86
Author(s):  
Alessandra Laricchia ◽  
Patrizio Mazzone ◽  
Damiano Regazzoli ◽  
Giuseppe D'Angelo ◽  
Satoru Mitomo ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage ◽  
Single Center ◽  
Single Center Experience ◽  
Left Atrial Appendage Occlusion

scholarly journals Diagnosis and Management of Left Atrium Appendage Thrombosis in Atrial Fibrillation Patients Undergoing Cardioversion

Medicina ◽  
2019 ◽  
Vol 55 (9) ◽  
pp. 511 ◽  
Author(s):  
Enrico Melillo ◽  
Giuseppe Palmiero ◽  
Adele Ferro ◽  
Paola Elvira Mocavero ◽  
Vittorio Monda ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Rhythm Control ◽  
Atrial Appendage ◽  
Thromboembolic Complications ◽  
Left Atrial Appendage Thrombus ◽  
Increased Risk ◽  
Pharmacological Cardioversion

Atrial fibrillation is the most common cardiac arrhythmia and is associated with an increased risk of stroke and thromboembolic complications. A rhythm control strategy with both electrical and pharmacological cardioversion is recommended for patients with symptomatic atrial fibrillation. Anticoagulant therapy for 3–4 weeks prior to cardioversion is recommended in order to avoid thromboembolic events deriving from restoring sinus rhythm. Transesophageal echocardiography has a pivotal role in this setting, excluding the presence of left atrial appendage thrombus before cardioversion. The aim of this review is to discuss the epidemiology and risk factors for left atrial appendage thrombosis, the role of echocardiography in the decision making before cardioversion, and the efficacy of different anticoagulant regimens on the detection and treatment of left atrial appendage thrombosis.

Role of the Left Atrial Appendage in Systemic Homeostasis, Arrhythmogenesis, and Beyond

2020 ◽  
Vol 12 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Ghulam Murtaza ◽  
Bharath Yarlagadda ◽  
Krishna Akella ◽  
Domenico G. Della Rocca ◽  
Rakesh Gopinathannair ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage

scholarly journals Therapeutic Dilemma of Natural Watchman: Congenital Absence of the Left Atrial Appendage

2018 ◽  
Vol 2018 ◽  
pp. 1-3 ◽  
Author(s):  
Phoo Pwint Nandar ◽  
Asim Kichloo ◽  
Thein Tun Aung ◽  
Kevin D. Kravitz
Keyword(s):  
Left Atrial ◽  
Rare Case ◽  
Left Atrial Appendage ◽  
Incidental Finding ◽  
Scientific Data ◽  
Atrial Appendage ◽  
Congenital Absence ◽  
Cardiac Anomaly ◽  
Congenital Cardiac Anomaly

Congenital absence of the left atrial appendage is a rare congenital cardiac anomaly which is usually an incidental finding. We present a rare case of congenital absence of the left atrial appendage in a 77-year-old female patient with atrial fibrillation, and we will discuss the role of anticoagulation in the patient with congenital absence of the left atrial appendage based on the scientific data and theoretic background.

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