Pneumatic Burst Pressures After Inverted Closure of the Left Atrial Appendage: An Ex Vivo Model Nikolas Mirow, MD, Sebastian Vogt, MD, Rainer Moosdorf,

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Pneumatic Burst Pressures After Inverted Closure of the Left Atrial Appendage: An Ex Vivo Model Nikolas Mirow, MD, Sebastian Vogt, MD, Rainer Moosdorf, MD, Andreas Kirschbaum, MD The Annals of Thoracic Surgery Volume 104, Issue 1, Pages 116-121 (July 2017) DOI: 10.1016/j.athoracsur.2016.10.042 Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Experimental set-up for measuring pneumatic burst pressures for (A) epicardial and (B) endocardial interventions. The Annals of Thoracic Surgery 2017 104, 116-121DOI: (10.1016/j.athoracsur.2016.10.042) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Surgical closure techniques of the left atrial appendage: (A) epicardial double-layer suture (horizontal mattress suture and a second over-and-over suture over the resected rims); (B) epicardial Tri-Staple (Covidien GmbH Neustadt, Germany) surgical stapler; (C) inverse double-layered suture; and (D) inverse Tri-Staple surgical stapler. The left atrial appendage was resected in all cases. The Annals of Thoracic Surgery 2017 104, 116-121DOI: (10.1016/j.athoracsur.2016.10.042) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Pneumatic burst pressures of different left atrial appendage closure techniques for groups 1 to 6. The horizontal line in the middle of each box indicates the median, the top and bottom borders of the box mark the 75th and 25th percentiles, respectively, and the whiskers mark the 90th and 10th percentiles. The Annals of Thoracic Surgery 2017 104, 116-121DOI: (10.1016/j.athoracsur.2016.10.042) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions