Use of an Expanded Polytetrafluoroethylene Patch as an Artificial Leaflet in Mitral Valve Plasty: An Early Experience Toshiaki Ito, MD, Atsuo Maekawa,

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Use of an Expanded Polytetrafluoroethylene Patch as an Artificial Leaflet in Mitral Valve Plasty: An Early Experience Toshiaki Ito, MD, Atsuo Maekawa, MD, Koji Yamana, MD, Tomo Yoshizumi, MD, Masatoshi Sunada, MD The Annals of Thoracic Surgery Volume 89, Issue 5, Pages 1620-1624 (May 2010) DOI: 10.1016/j.athoracsur.2009.11.064 Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 A 0.4-mm Gore-Tex patch (W.L. Gore & Assoc, Flagstaff, AZ) sutured at the base of the anterior mitral leaflet in ischemic mitral regurgitation. The Annals of Thoracic Surgery 2010 89, 1620-1624DOI: (10.1016/j.athoracsur.2009.11.064) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 (A) Systolic and (B) diastolic echocardiographic images at 46 months postoperatively in a 72-year-old man who underwent anterior mitral valve augmentation with a Gore-Tex patch (W.L. Gore & Assoc, Flagstaff, AZ) for ischemic mitral regurgitation. The motion of the Gore-Tex patch at the basal portion of the anterior leaflet is preserved. The high echocardiographic image of the patch is due to the properties of Gore-Tex and does not imply calcification. The motion angle of the patch was directly measured on digital images. The Annals of Thoracic Surgery 2010 89, 1620-1624DOI: (10.1016/j.athoracsur.2009.11.064) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Pathologic findings of the polytetrafluoroethylene (PTFE) patch (Advanta SST PTFE graft) explanted 6 months postoperatively. (Hematoxylin and eosin; ×40.) The Annals of Thoracic Surgery 2010 89, 1620-1624DOI: (10.1016/j.athoracsur.2009.11.064) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions