Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Julie R. Glasson"'
Autor:
D. Craig Miller, George T. Daughters, G.Randall Green, Paul Dagum, Tomasz A. Timek, Neil B. Ingels, David Liang, David T. Lai, Julie R. Glasson
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 120:966-975
Background: The perturbed mitral leaflet geometry that leads to acute ischemic mitral regurgitation during acute left ventricular ischemia has not been quantified, nor is it known whether annuloplasty rings affect these detrimental changes in leaflet
Autor:
George T. Daughters, D. Craig Miller, Neil B. Ingels, G.Randall Green, David T. Lai, Tomasz A. Timek, Paul Dagum, Julie R. Glasson
Publikováno v:
Surgery. 128:361-367
Introduction: Ovine mitral annular area (MAA) reduction predominantly occurs before ventricular systole. We used the myocardial marker methods to investigate left atrial and MAA dynamics during rapid atrial pacing. Methods: Seven sheep underwent impl
Autor:
J.Francisco Nistal, Linda E. Foppiano, Ann F. Bolger, George T. Daughters, Neil B. Ingels, G.Randall Green, Masashi Komeda, Julie R. Glasson, D. Craig Miller, Paul Dagum
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 117:302-309
Background: Mitral annuloplasty is an important element of most mitral repairs, yet the effects of various types of annuloplasty rings on mitral annular dynamics are still debated. Recent studies suggest that flexible rings preserve physiologic mitra
Autor:
Neil B. Ingels, Matts Karlsson, Ann F. Bolger, Linda E. Foppiano, George T. Daughters, Masashi Komeda, Terrence Tye, D. Craig Miller, Julie R. Glasson
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 274:H552-H563
To study the three-dimensional size, shape, and motion of the mitral leaflets and annulus, we surgically attached radiopaque markers to sites on the mitral annulus and leaflets in seven sheep. After 8 days of recovery, the animals were sedated, and t
Autor:
Julie R. Glasson, Ann F. Bolger, Masashi Komeda, M A Niczyporuk, D. Craig Miller, George T. Daughters, Neil B. Ingels
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 111(3):574-585
The mitral anulus is a dynamic structure that undergoes alterations in size and shape throughout the cardiac cycle, contracting during systole. Numerous reports have shown this systolic orifice reduction to be due chiefly to posterior annular contrac
Autor:
Neil B. Ingels, D. Craig Miller, David Liang, George T. Daughters, Tomasz A. Timek, Julie R. Glasson, David T. Lai
Publikováno v:
Circulation. 112
Background— A “saddle-shaped” mitral annulus with an optimal ratio between annular height and commissural diameter may reduce leaflet and chordal stress and is purported to be conserved across mammalian species. Whether annuloplasty rings maint
Autor:
Julie R. Glasson, Neil B. Ingels, Frederick A. Tibayan, George T. Daughters, David Liang, D. Craig Miller, Filiberto Rodriguez
Publikováno v:
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography. 17(2)
Echocardiographic measures of mitral annular descent (MAD) assume a fixed left ventricular (LV) apex throughout the cardiac cycle, ignoring the apical component of LV long-axis shortening (LAS). We tested whether apical motion contributes significant
Autor:
George T. Daughters, D. Craig Miller, Linda E. Foppiano, Masashi Komeda, Julie R. Glasson, Neil B. Ingels, Paul Dagum, Tomasz A. Timek, G.Randall Green, Ann F. Bolger, J.Francisco Nistal
Publikováno v:
The Journal of thoracic and cardiovascular surgery. 119(4 Pt 1)
Objective: Incomplete mitral leaflet coaptation during acute left ventricular ischemia is associated with end-diastolic mitral annular dilatation and ischemic mitral regurgitation. Annular rings were implanted in sheep to investigate whether annular
Autor:
George T. Daughters, G.Randall Green, D. Craig Miller, Neil B. Ingels, Paul Dagum, J.Francisco Nistal, Julie R. Glasson
Publikováno v:
The Annals of thoracic surgery. 68(6)
Background . The effects of ring annuloplasty on mitral leaflet motion are incompletely known. The three-dimensional dynamics of the mitral valve in vivo were examined to determine how two types of annuloplasty rings affect leaflet motion during valv
Autor:
Gerald J. Berry, Linda E. Foppiano, Julie R. Glasson, George T. Daughters, Neil B. Ingels, D. Craig Miller, G.Randall Green, Paul Dagum, Ann F. Bolger
Publikováno v:
Circulation. 100
Background —Asymmetrical mitral annular (MA) dilatation and papillary muscle dislocation are implicated in the pathogenesis of functional mitral regurgitation (MR). Methods and Results —To determine the mechanism by which annular and papillary mu