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Restricted posterior leaflet motion after mitral ring annuloplasty

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Presentation on theme: "Restricted posterior leaflet motion after mitral ring annuloplasty"— Presentation transcript:

1 Restricted posterior leaflet motion after mitral ring annuloplasty
G.Randall Green, MD, Paul Dagum, MD, PhD, Julie R Glasson, MD, J.Francisco Nistal, MD, PhD, George T Daughters, MS, Neil B Ingels, PhD, D.Craig Miller, MD  The Annals of Thoracic Surgery  Volume 68, Issue 6, Pages (December 1999) DOI: /S (99)

2 Fig 1 (A) The myocardial, annular and leaflet marker array used in this experiment. (B) Expanded view of the annular, anterior, and posterior leaflet markers shows that leaflet markers (open black circles) were placed down a line from the mid-anterior annulus (or saddlehorn) marker (located midway between the right [RFT] and left [LFT] fibrous trigone markers) to the mid-posterior annulus marker. (AML = anterior mitral leaflet; PML = posterior mitral leaflet.) The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3 Fig 2 Schematic of the mitral annulus and anterior and posterior leaflets, showing the internal Cartesian coordinate system used in the experiment. See text for anatomic details. (AML = anterior mitral leaflet; PML = posterior mitral leaflet.) The Annals of Thoracic Surgery  , DOI: ( /S (99) )

4 Fig 3 The locations (mean ± standard error of the mean) of the four anterior leaflet and the two posterior (middle scallop) leaflet markers are plotted in the x-y plane in the maximally open and closed positions and at five intervening time points studied in the control group (A), Physio group (B), and Duran group (C). The positions of the mid-anterior and mid-posterior annulus markers are also shown for reference (located at each end of the double-ended arrow). The Annals of Thoracic Surgery  , DOI: ( /S (99) )

5 Fig 4 The distance (mean ± standard error of the mean) in three dimensions between the anterior and posterior leaflet edge markers (closed circles) during the 333-millisecond interval studied is shown for the control group (A), the Physio group (B), and the Duran group (C). Left ventricular pressure (open squares; mean ± standard error of the mean) is also shown for each group. The Annals of Thoracic Surgery  , DOI: ( /S (99) )


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