Effect of heart rate on the hemodynamics of bileaflet mechanical heart valves' prostheses (St. Jude Medical) in the aortic position and in the opening phase: A computational study

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Mehdi JahandardoostH Mohammadi

Abstract

To date, to the best of the authors' knowledge, in almost all of the studies performed around the hemodynamics of bileaflet mechanical heart valves, a heart rate of 70-72 beats/min has been considered. In fact, the heart rate of ~72 beats/min does not represent the entire normal physiological conditions under which the aortic or prosthetic valves function. The heart rates of 120 or 50 beats/min may lead to hemodynamic complications, such as plaque formation and/or thromboembolism in patients. In this study, the hemodynamic performance of the bileaflet mechanical heart valves in a wide range of normal and physiological heart rates, that is, 60-150 beats/min, was studied in the opening phase. The model considered in this study was a St. Jude Medical bileaflet mechanical heart valve with the inner diameter of 27 mm in the aortic position. The hemodynamics of the native valve and the St. Jude Medical valve were studied in a variety of heart rates in the opening phase and the results were carefully compared. The results indicate that peak values of the velocity profile downstream of the valve increase as heart rate increases, as well as the location of the maximum velocity changes with heart rate in the St. Jude Medical valve model....Continue Reading

References

Feb 1, 1986·Circulation Research·M B HigginbothamF R Cobb
Apr 1, 1968·Journal of Applied Physiology·B EkblomB Wallström
Jul 1, 1970·Journal of Applied Physiology·L HermansenB Saltin
Oct 15, 1967·The Japanese Journal of Physiology·M KumadaK Matsuda
Dec 1, 1969·Scandinavian Journal of Clinical and Laboratory Investigation·L H HartleyB Saltin
Jun 2, 2000·Journal of Biomechanical Engineering·D BluesteinM Gharib
Jun 5, 2003·Artificial Organs·Reinhard PaulHelmut Reul
Feb 4, 1958·Acta Physiologica Scandinavica·E BERGLUNDG L SCHREINER
Mar 1, 1964·Journal of Applied Physiology·P O ASTRANDJ STENBERG
Apr 1, 1962·Circulation Research·D E MILLERH D McINTOSH
Jul 17, 2004·Annual Review of Biomedical Engineering·Ajit P YoganathanS Casey Jones
Dec 1, 2007·Annals of Biomedical Engineering·Liang GeAjit P Yoganathan
Oct 22, 2008·American Journal of Physiology. Heart and Circulatory Physiology·Kartik S SundareswaranAjit P Yoganathan
Nov 26, 2008·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·H MohammadiW-K Wan
Feb 6, 2009·Medical & Biological Engineering & Computing·Fotis Sotiropoulos, Iman Borazjani
Feb 18, 2009·Clinical and Experimental Pharmacology & Physiology·Lakshmi P DasiAjit P Yoganathan
Aug 19, 2009·Cardiovascular Engineering·Hadi Mohammadi, Fereshteh Bahramian
Sep 5, 2009·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Choeng Ryul Choi, Chang Nyung Kim
Oct 26, 2010·Medical Engineering & Physics·Hadi Mohammadi, Kibret Mequanint
May 17, 2011·American Journal of Physiology. Heart and Circulatory Physiology·Eric J StöhrRob Shave
Jul 13, 2014·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Fereshteh Bahramian, Hadi Mohammadi
Apr 4, 2015·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Mehdi JahandardoostHadi Mohammadi

❮ Previous
Next ❯

Citations

Jan 20, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Mehdi JahandardoostHadi Mohammadi
Feb 25, 2020·Journal of Medical Engineering & Technology·Luke Ohlmann, Hadi Mohammadi
Sep 13, 2020·Cardiovascular Engineering and Technology·Jin-Yuan QianZhi-Jiang Jin
Jan 16, 2021·Journal of Medical Engineering & Technology·Hadi Mohammadi, Arpin Bhullar

❮ Previous
Next ❯

Software Mentioned

ANSYS CFX

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Mehdi JahandardoostH Mohammadi
Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Mehdi JahandardoostH Mohammadi
European Journal of Ultrasound : Official Journal of the European Federation of Societies for Ultrasound in Medicine and Biology
S A ReisnerR S Meltzer
Life Support Systems : the Journal of the European Society for Artificial Organs
Y R Woo, Ajit P Yoganathan
© 2022 Meta ULC. All rights reserved