Key result
CT identifies windsock as the most common LAA morphology in ~41% of AF patients.
Why the study?
The study was conducted to describe the morphological characteristics of the left atrial appendage on multislice computed tomography in patients with atrial fibrillation.
Observational (n=44)
No
In patients with atrial fibrillation undergoing cardiac computed tomography, the 'windsock' morphology is the most common left atrial appendage shape, and gender has little association with morphology.
Informs LAA characterization on CT in AF; leaves open links to thromboembolic outcomes.
Purpose: To describe the morphological characteristics of left atrial appendage (LAA) on multislice computed tomography in patients with atrial fibrillation. Materials and methods: A prospective descriptive study on 44 patients diagnosed with atrial fibrillation (AF) and underwent multislice computed tomography at Bach Mai Hospital from August 2022 to July 2023. Results: Mean age 64.45 ± 10.50. The most common morphology of LAA is “windsock” with 40.91%, followed by “chicken wing” with 34.09%, then “cauliflower” with 13.64%, and finally “cactus” with 11.36%. The most common LAA orifice position is in the middle (63.64%), the average length of the LAA is 47.03 ± 11.69 mm, and the mean volume of the LAA is 14.39 ± 8.00 ml. There is little relationship between gender and morphological characteristics of the LAA. Conclusion: The most common LAA morphology in patients with atrial fibrillation is “windsock”. Gender has little association with left atrial appendage morphology.
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Truong et al. (2023) conducted an observational in Atrial fibrillation (n=44). Multislice computed tomography was evaluated on Left atrial appendage morphology distribution. Multislice computed tomography revealed that the most common left atrial appendage morphology in patients with atrial fibrillation was the windsock type (40.91%).
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