scholarly journals Pressure recovery in aortic stenosis: An in vitro study in a pulsatile flow model

1992 ◽  
Vol 20 (7) ◽  
pp. 1585-1593 ◽  
Author(s):  
Wolfram Voelker ◽  
Helmut Reul ◽  
Thomas Stelzer ◽  
Anselm Schmidt ◽  
Karl R. Karsch
Keyword(s):  
Aortic Stenosis ◽  
Pulsatile Flow ◽  
Flow Model ◽  
In Vitro Study ◽  
Vitro Study ◽  
Pressure Recovery

Bicuspid Aortic Valves Are Associated With Increased Turbulence Compared to Pure Aortic Stenosis: An In Vitro Study

2012 ◽  
Author(s):  
Neelakantan Saikrishnan ◽  
Nicole C. Milligan ◽  
Ajit P. Yoganathan
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Genetic Defect ◽  
In Vitro Study ◽  
Coarctation Of The Aorta ◽  
Vitro Study ◽  
Cardiac Anomaly ◽  
Aortic Dilatation ◽  
Congenital Cardiac Anomaly

In about 1–2% of all live births, the human aortic valve only consists of two anomalous leaflets and is known as the bicuspid aortic valve (BAV). BAVs are the most common congenital cardiac anomaly, and are associated with significant valvular dysfunction, including calcific aortic stenosis (AS) and aortic regurgitation (AR), as well as aortic wall abnormalities including coarctation of the aorta, ascending aortic dilatation and aneurysms [1]. Many studies have proposed a common underlying genetic defect in progression of complications with BAVs [2]. However, other recent studies have also suggested that the altered hemodynamic environment associated with BAVs could also be responsible for accelerated disease progression in these patients [3, 4]. A recent in vitro study showed elevated levels of turbulence associated with BAVs, and indicated that fluid flow patterns in the aortic sinuses are also affected due to the altered valve morphology [5]. The present work seeks to compare the levels of turbulence in BAVs to pure trileaflet aortic stenosis models.

Discordant Grading of Aortic Stenosis Severity: New Insights from an In Vitro Study

2019 ◽  
Vol 3 (5) ◽  
pp. 415-422 ◽  
Author(s):  
Jérôme Adda ◽  
Viktoria Stanova ◽  
Anne-Sophie Zenses ◽  
Marie-Annick Clavel ◽  
Paul Barragan ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
In Vitro Study ◽  
Vitro Study ◽  
Stenosis Severity

Comparison of passive and active perfusion catheters: An in vitro study in a pulsatile coronary flow model

1996 ◽  
Vol 38 (4) ◽  
pp. 421-427 ◽  
Author(s):  
W. Voelker ◽  
W. Kerkhoffs ◽  
B. Schmitz ◽  
H. Reul ◽  
D. K. Potthast ◽  
...  
Keyword(s):  
Coronary Flow ◽  
Flow Model ◽  
In Vitro Study ◽  
Vitro Study

scholarly journals P6332Hemodynamic determinants of low gradient severe aortic stenosis: an in vitro study

2017 ◽  
Vol 38 (suppl_1) ◽  
Author(s):  
J. Adda ◽  
V. Stanova ◽  
M.-A. Clavel ◽  
P. Barragan ◽  
G. Penaranda ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Severe Aortic Stenosis ◽  
In Vitro Study ◽  
Vitro Study

Aortic Prosthetic Valve Design and Size: Relation to Doppler Echocardiographic Findings and Pressure Recovery— An In Vitro Study

2000 ◽  
Vol 13 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Odd Bech-Hanssen ◽  
Kenneth Caidahl ◽  
Ingemar Wallentin ◽  
Joakim Brandberg ◽  
Bengt Wranne ◽  
...  
Keyword(s):  
Prosthetic Valve ◽  
In Vitro Study ◽  
Vitro Study ◽  
Pressure Recovery ◽  
Valve Design ◽  
Size Relation ◽  
Echocardiographic Findings
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