Results 351 to 360 of about 5,349,086 (384)
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Journal of Thoracic Disease, 2015
BACKGROUND Dysfunction of mechanical heart valve prostheses is an unusual but potentially lethal complication after mechanical prosthetic valve replacement.
Wei-Guo Ma +7 more
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BACKGROUND Dysfunction of mechanical heart valve prostheses is an unusual but potentially lethal complication after mechanical prosthetic valve replacement.
Wei-Guo Ma +7 more
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Mechanics of Relaxation of the Human Heart [PDF]
Physiology, 2000 Rapid and complete relaxation is a prerequisite for cardiac output adaptation to changes in loading conditions, inotropic stimulation, and heart rate. In the healthy human heart, the rate and extent of relaxation depend mainly on actomyosin cross bridge dissociation and on left ventricular end-systolic volume, rather than on the afterload level.
Jean-Louis Hébert +3 more
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Mechanical heart valve cavitation
Expert Review of Medical Devices, 2004Cavitation was first directly related to mechanical heart valves in the mid 1980s after a series of valve failures observed with the Edwards-Duromedics valve. The damages observed indicated that cavitation could be responsible. Later, several in vitro studies visualized the bubble formation and collapse of cavitation at mechanical heart valves.
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Mechanism of Digitalis Action on the Heart
New England Journal of Medicine, 1967Cellular Mechanisms of Action Much of the persistent confusion about the cellular actions of digitalis may be attributed to three factors.
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2020
Heart failure (HF) is an end-stage manifestation of various heart diseases and a major cause of death in patients with heart disease. Morbidity increases with age, and mortality and hospitalization remain high. This chapter will introduce definition, mechanism, diagnosis, and management of heart failure.
Yixin Cui, Xufeng Wei
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Heart failure (HF) is an end-stage manifestation of various heart diseases and a major cause of death in patients with heart disease. Morbidity increases with age, and mortality and hospitalization remain high. This chapter will introduce definition, mechanism, diagnosis, and management of heart failure.
Yixin Cui, Xufeng Wei
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Dabigatran and mechanical heart valves--not as easy as we hoped.
New England Journal of Medicine, 2013Warfarin is the mainstay of anticoagulation for patients with mechanical heart valves. However, warfarin has well-known limitations, including interactions with food and drugs and the requirement for lifelong monitoring of the international normalized ...
E. Hylek
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Fully coupled fluid‐electro‐mechanical model of the human heart for supercomputers
International Journal for Numerical Methods in Biomedical Engineering, 2018In this work, we present a fully coupled fluid‐electro‐mechanical model of a 50th percentile human heart. The model is implemented on Alya, the BSC multi‐physics parallel code, capable of running efficiently in supercomputers.
A. Santiago +8 more
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Computational Mechanics of the Heart
2006Finite elasticity theory combined with finite element analysis provides the framework for analysing ventricular mechanics during the filling phase of the cardiac cycle, when cardiac cells are not actively contracting. The orthotropic properties of the passive tissue are described here by a “pole–zero” constitutive law, whose parameters are derived in ...
Martyn P. Nash, Peter Hunter
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