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Mitral ring annuloplasty relieves tension of the secondary but not primary chordae tendineae in the anterior mitral leaflet  Sten Lyager Nielsen, MD,

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Presentation on theme: "Mitral ring annuloplasty relieves tension of the secondary but not primary chordae tendineae in the anterior mitral leaflet  Sten Lyager Nielsen, MD,"— Presentation transcript:

1 Mitral ring annuloplasty relieves tension of the secondary but not primary chordae tendineae in the anterior mitral leaflet  Sten Lyager Nielsen, MD, PhD, DMSc, Mads Lomholt, MD, PhD, Peter Johansen, PhD, Soeren B. Hansen, MD, PhD, Niels Trolle Andersen, PhD, John Michael Hasenkam, MD, DMSc  The Journal of Thoracic and Cardiovascular Surgery  Volume 141, Issue 3, Pages (March 2011) DOI: /j.jtcvs Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

2 Figure 1 Schematic and photographic representation of the mitral valve subvalvular apparatus. Primary chordae tendineae insert in the leading edge and secondary chordae in the leaflet belly. The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

3 Figure 2 Miniature chordal force transducers were mounted on the chordae tendineae. Ruler units are shown in centimeters. The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

4 Figure 3 Tension of primary (dashed line) and secondary (dotted line) chordae from anterolateral (APM) and posteromedial (PPM) papillary muscle in relation to left ventricular pressure (black line) before (top) and after (bottom) mitral ring annuloplasty. Data represent 1 animal. The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

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