scholarly journals Critical aspects for a CFD simulation compared with PIV analysis of the flow field downstream of a prosthetic heart valve

2003 ◽  
Author(s):  
M Grigioni
Keyword(s):  
Flow Field ◽  
Heart Valve ◽  
Cfd Simulation ◽  
Prosthetic Heart Valve ◽  
Piv Analysis ◽  
Critical Aspects

scholarly journals Hemodynamic Performance of Dysfunctional Prosthetic Heart Valve with the Concomitant Presence of Subaortic Stenosis: In Silico Study

2020 ◽  
Vol 7 (3) ◽  
pp. 90
Author(s):  
Othman Smadi ◽  
Anas Abdelkarim ◽  
Samer Awad ◽  
Thakir D. Almomani
Keyword(s):  
Early Detection ◽  
Heart Valve ◽  
Heart Valves ◽  
Cfd Simulation ◽  
Treatment Plan ◽  
Mechanical Heart Valve ◽  
Prosthetic Heart Valve ◽  
Subaortic Stenosis ◽  
Prosthetic Heart Valves ◽  
The Impact

The prosthetic heart valve is vulnerable to dysfunction after surgery, thus a frequent assessment is required. Doppler electrocardiography and its quantitative parameters are commonly used to assess the performance of the prosthetic heart valves and provide detailed information on the interaction between the heart chambers and related prosthetic valves, allowing early detection of complications. However, in the case of the presence of subaortic stenosis, the accuracy of Doppler has not been fully investigated in previous studies and guidelines. Therefore, it is important to evaluate the accuracy of the parameters in such cases to get early detection, and a proper treatment plan for the patient, at the right time. In the current study, a CFD simulation was performed for the blood flow through a Bileaflet Mechanical Heart Valve (BMHV) with concomitant obstruction in the Left Ventricle Outflow Tract (LVOT). The current study explores the impact of the presence of the subaortic on flow patterns. It also investigates the accuracy of (BMHV) evaluation using Doppler parameters, as proposed in the American Society of Echocardiography (ASE) guidelines.

A Note on the Leakage of the New Omniscience/tm Pivoting Disk Prosthetic Heart Valve

1980 ◽  
Vol 102 (4) ◽  
pp. 342-344 ◽  
Author(s):  
T. H. Reif ◽  
G. Cocolin ◽  
M. C. Huffstutler
Keyword(s):  
Steady State ◽  
Flow Field ◽  
Heart Valve ◽  
Prosthetic Heart Valve ◽  
Cardiac Valve ◽  
General Nature ◽  
Valve Prosthesis

Measurements of the steady-state leakage of the new Medical Incorporated Omniscience/tm cardiac valve prosthesis are presented. These results are compared to those obtained from the SJM bi-leaflet cardiac valve/tm. The new Omniscience/tm valve shows significantly less leakage than the bi-leaflet valve. Consideration is given to problems in similitude as well as to the general nature of the flow field.

Prosthetic Heart Valve Evaluation in Vitro: Critical Aspects of Data Comparability

1991 ◽  
Vol 14 (6) ◽  
pp. 343-349 ◽  
Author(s):  
V. Barbaro ◽  
P. Bartolini ◽  
C. Daniele ◽  
M. Grigioni ◽  
A. Palombo
Keyword(s):  
Heart Valve ◽  
Prosthetic Heart Valve ◽  
Data Comparability ◽  
Critical Aspects

A Scaled-Up Mechanical Prosthetic Heart Valve Model for High-Resolution Flow Field Measurements

2007 ◽  
Author(s):  
Eilis M. Donohue ◽  
Kevin B. Heraty ◽  
Nathan J. Quinlan
Keyword(s):  
Fluid Dynamics ◽  
High Resolution ◽  
Flow Field ◽  
Heart Valve ◽  
Heart Valves ◽  
Thrombus Formation ◽  
Prosthetic Heart Valve ◽  
Quantitative Information ◽  
Prosthetic Heart Valves ◽  
High Resolution Data

Every year, over 250,000 patients undergo heart valve implantation [1]. Approximately 55% of implanted prosthetic heart valves (PHV) are mechanical. Patients must undergo lifelong anticoagulant medication in order to alleviate the risk of thrombus formation. In order to understand the complex fluid dynamics underpinning problems such as thrombosis, detailed high-resolution quantitative information on the flow field in PHVs is essential [2]. High-resolution data is also needed for the validation of Computational Fluid Dynamics (CFD) studies.

Choosing A Prosthetic Heart Valve

1991 ◽  
Vol 9 (2) ◽  
pp. 329-338 ◽  
Author(s):  
Jorge A. Wernly ◽  
Michael H. Crawford
Keyword(s):  
Heart Valve ◽  
Prosthetic Heart Valve

CHOOSING A PROSTHETIC HEART VALVE

1998 ◽  
Vol 16 (3) ◽  
pp. 491-504 ◽  
Author(s):  
Jorge A. Wernly ◽  
Michael H. Crawford
Keyword(s):  
Heart Valve ◽  
Prosthetic Heart Valve

scholarly journals WARING BLENDER SYNDROME - THE MISHAPS OF PROSTHETIC HEART VALVE

2021 ◽  
Vol 77 (18) ◽  
pp. 2381
Author(s):  
Justin Arunthamakun ◽  
Katherine Thorton ◽  
Aldo Rafael ◽  
Haojie Wang ◽  
James Choi ◽  
...  
Keyword(s):  
Heart Valve ◽  
Prosthetic Heart Valve ◽  
Waring Blender

Peri-procedural anticoagulation management of mechanical prosthetic heart valve patients

2009 ◽  
Vol 124 (3) ◽  
pp. 300-305 ◽  
Author(s):  
Paul R. Daniels ◽  
Robert D. McBane ◽  
Scott C. Litin ◽  
Sue A. Ward ◽  
David O. Hodge ◽  
...  
Keyword(s):  
Heart Valve ◽  
Prosthetic Heart Valve ◽  
Anticoagulation Management
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