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3D Printing for LAA Occlusion

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Cardiovascular 3D Printing

Abstract

The left atrial appendage (LAA) is a narrow, tubular, blind-ended structure extending anterolaterally from the main body of the left atrium (LA). The LAA is located above the LV, on the left side of the pulmonary artery and ascending aorta, between the left superior pulmonary vein and the mitral annulus. With prominent muscular ridges, the LAA has active contraction. The appendage is also an endocrine organ, containing almost 30% of the heart atrial natriuretic factor [1]. Because of its increased distensibility, the LAA may augment hemodynamic function by alleviating pressure rise in the LA and ensure filling of the left ventricle (LV). In cardiovascular diseases, the LAA is the main site of thrombus formation because of its special anatomical structure and functional characteristics. Thrombi originating from the LAA account for 90% of atrial thrombi in nonvalvular atrial fibrillation [2].

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Authors and Affiliations

  1. Laboratory of Cardiac Imaging and 3D Printing, Li Ka Shing Institute of Health Science; Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China

    Yiting Fan & Alex Pui-Wai Lee

  2. Division of Cardiology, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China

    Yiting Fan & Alex Pui-Wai Lee

  3. Hong Kong Asia Heart Centre, Hong Kong, China

    Yat-Yin Lam

Authors
  1. Yiting Fan
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  2. Yat-Yin Lam
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  3. Alex Pui-Wai Lee
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Corresponding author

Correspondence to Alex Pui-Wai Lee .

Editor information

Editors and Affiliations

  1. Department of Cardiovascular Surgery, Xijing Hospital, Xi’an, China

    Jian Yang

  2. Laboratory of Cardiac Imaging and 3D Printing, Li Ka Shing Institute of Health Science, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China

    Alex Pui-Wai Lee

  3. Paediatric and Congenital Cardiac Surgery Unit Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy

    Vladimiro L. Vida

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Fan, Y., Lam, YY., Lee, A.PW. (2021). 3D Printing for LAA Occlusion. In: Yang, J., Lee, A.PW., Vida, V.L. (eds) Cardiovascular 3D Printing. Springer, Singapore. https://doi.org/10.1007/978-981-15-6957-9_7

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  • DOI: https://doi.org/10.1007/978-981-15-6957-9_7

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-6956-2

  • Online ISBN: 978-981-15-6957-9

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