Effects of aortic valve stenosis on coronary artery flow using an in-vitro flow model

2009 ◽  
pp. 33-36
Author(s):  
E. Gaillard ◽  
D. Garcia ◽  
L. Kadem ◽  
P. Pibarot ◽  
L. -G. Durand
Keyword(s):  
Coronary Artery ◽  
Aortic Valve ◽  
Aortic Valve Stenosis ◽  
Flow Model ◽  
Coronary Artery Flow ◽  
Artery Flow

scholarly journals To Balloon or Not to Balloon? The Effects of an Intra-Aortic Balloon-Pump on Coronary Artery Flow during Extracorporeal Circulation Simulating Normal and Low Cardiac Output Syndromes

2021 ◽  
Vol 10 (22) ◽  
pp. 5333
Author(s):  
Philippe Reymond ◽  
Karim Bendjelid ◽  
Raphaël Giraud ◽  
Gérald Richard ◽  
Nicolas Murith ◽  
...  
Keyword(s):  
Heart Failure ◽  
Heart Rate ◽  
Blood Flow ◽  
Cardiac Output ◽  
Coronary Artery ◽  
Coronary Blood Flow ◽  
Low Cardiac Output ◽  
Coronary Artery Flow ◽  
Artery Flow

ECMO is the most frequently used mechanical support for patients suffering from low cardiac output syndrome. Combining IABP with ECMO is believed to increase coronary artery blood flow, decrease high afterload, and restore systemic pulsatile flow conditions. This study evaluates that combined effect on coronary artery flow during various load conditions using an in vitro circuit. In doing so, different clinical scenarios were simulated, such as normal cardiac output and moderate-to-severe heart failure. In the heart failure scenarios, we used peripheral ECMO support to compensate for the lowered cardiac output value and reach a default normal value. The increase in coronary blood flow using the combined IABP-ECMO setup was more noticeable in low heart rate conditions. At baseline, intermediate and severe LV failure levels, adding IABP increased coronary mean flow by 16%, 7.5%, and 3.4% (HR 60 bpm) and by 6%, 4.5%, and 2.5% (HR 100 bpm) respectively. Based on our in vitro study results, combining ECMO and IABP in a heart failure setup further improves coronary blood flow. This effect was more pronounced at a lower heart rate and decreased with heart failure, which might positively impact recovery from cardiac failure.

scholarly journals Effect of mechanical aortic valve orientation on coronary artery flow: Comparison of tilting disc versus bileaflet prostheses in pigs

2002 ◽  
Vol 124 (5) ◽  
pp. 925-932 ◽  
Author(s):  
Peter Kleine ◽  
Mirella Scherer ◽  
Ulf Abdel-Rahman ◽  
Armin A. Klesius ◽  
Hans Ackermann ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Aortic Valve ◽  
Coronary Artery Flow ◽  
Mechanical Aortic Valve ◽  
Artery Flow

Phasic Coronary Artery Flow Profiles in Patients with Aortic Valve Disease

1998 ◽  
Vol 28 (10) ◽  
pp. 1691
Author(s):  
Jong-Hoon Koh ◽  
Han-Soo Kim ◽  
Seung-Jea Tahk ◽  
Dong-Jin Kim ◽  
Joon-Han Shin ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Aortic Valve ◽  
Aortic Valve Disease ◽  
Valve Disease ◽  
Flow Profiles ◽  
Coronary Artery Flow ◽  
Artery Flow

An in vitro study on the effect of branch points on the stability of coronary artery flow

1997 ◽  
Vol 19 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Jon Peacock ◽  
Travis Jones ◽  
Christy Tock ◽  
Robert Lutz
Keyword(s):  
Coronary Artery ◽  
In Vitro Study ◽  
Vitro Study ◽  
Branch Points ◽  
Coronary Artery Flow ◽  
The Stability ◽  
Artery Flow
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