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Transcatheter Left Atrial Appendage Closure Cover
Open Access
|May 2023

Figures & Tables

Table 1

Indications for percutaneous left atrial appendage closure (LAAC). OAC: oral anticoagulation

Primary indication for percutaneous LAAC
Elevated thromboembolic risk (CHA2DS2-VASC > 3)
Contraindicated for long-term OAC
Potential indications for percutaneous LAAC
High risk of bleeding with OAC due to:
  • Severe renal or hepatic dysfunction

  • Inherited/acquired bleeding disorders or coagulopathies

  • Increased risk of intracerebral hemorrhage (ie, arteriovenous malformation, brain metastases)

  • High probability of severe or recurrent trauma (ie, elderly or patients with epilepsy)

Presence of thromboembolic phenomena while on therapeutic OAC
Chronic OAC intolerance (ie, severe gastrointestinal disease)
Employed in high-risk occupations
Unwilling to take or comply with OAC
Figure 1

Watchman. Reproduced with permission from Boston Scientific. ©2023 Boston Scientific Corporation or its affiliates. All rights reserved.

Figure 2

Watchman FLX. Reproduced with permission from Boston Scientific. ©2023 Boston Scientific Corporation or its affiliates. All rights reserved.

Figure 3

Amulet cardiac plug. Reproduced with permission from Abbott Vascular.

Figure 4

Conformal left atrial appendage seal. Reproduced with permission from Conformal Medical.

Figure 5

ICE-guided left atrial appendage closure. Fluoroscopic images of the ICE-guided LAAC with Watchman FLX: (A) Mid left atrial position of the ICE catheter during left atrial appendogram. (B) Mitral valve inflow position of ICE catheter following device implantation. (C) Successful deployment of 31-mm Watchman FLX. (D-F) Simplified ICE imaging of the LAAC procedure. Ant: anterior; AoV: aortic valve; CAU: caudal; LA: left atrium; LUPV: left upper pulmonary vein; LV: left ventricle; Pos: posterior; RAO: right anterior oblique

DOI: https://doi.org/10.14797/mdcvj.1215 | Journal eISSN: 1947-6108
Language: English
Page range: 67 - 77
Submitted on: Feb 6, 2023
Accepted on: Feb 28, 2023
Published on: May 16, 2023
Published by: Houston Methodist DeBakey Heart & Vascular Center
In partnership with: Paradigm Publishing Services

© 2023 Gordon X. Wong, Gagan D. Singh, published by Houston Methodist DeBakey Heart & Vascular Center
This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 License.