Results 81 to 90 of about 928,903 (364)

A Review of Biomechanical Studies of Heart Valve Flutter

open access: yesFluids
This paper reviews recent biomechanical studies on heart valve flutter. The function of the heart valves is essential for maintaining effective blood circulation.
Lu Chen, Zhuo Zhang, Tao Li, Yu Chen
doaj   +1 more source

Prevalence and characteristics of primary left-sided valve disease in a cohort of 15,000 patients undergoing echocardiography studies in a tertiary hospital in Uganda

open access: yesBMC Cardiovascular Disorders, 2018
Background Although rheumatic heart disease remains the leading cause of valve heart disease (VHD) in developing countries, other forms of valve disease have been over shadowed and not regarded as a public health problem.
Joselyn Rwebembera   +9 more
doaj   +1 more source

Material transport in the left ventricle with aortic valve regurgitation

open access: yes, 2018
This experimental in vitro work investigates material transport properties in a model left ventricle in the case of aortic regurgitation, a valvular disease characterized by a leaking aortic valve and consequently double-jet filling within the elastic ...
Di Labbio, Giuseppe   +2 more
core   +1 more source

HLA class II associations with rheumatic heart disease among clinically homogeneous patients in children in Latvia [PDF]

open access: yes, 2003
Genetic control of immune reactions has a major role in the development of rheumatic heart disease (RHD) and differs between patients with rheumatic fever (RF).
Eglite, Jelena   +5 more
core   +2 more sources

Capillary‐Driven 3D Open Fluidic Networks for Versatile Continuous Flow Manipulation

open access: yesAdvanced Materials, EarlyView.
The capillary‐driven 3D open fluidic networks (OFNs), composed of connected polyhedral frames, enable precise, programmable, and versatile manipulation of unary, binary, and multiple continuous flows in both spatial and temporal dimensions. OFNs represent a significant leap beyond conventional microfluidics, unlocking new possibilities for selective ...
Shuangmei Wu   +4 more
wiley   +1 more source

A chronological history of heart valve prostheses to offer perspectives of their limitations

open access: yesFrontiers in Bioengineering and Biotechnology
Prosthetic heart valves (PHV) have been studied for around 70 years. They are the best alternative to save the life of patients with cardiac valve diseases. However, current PHVs may still cause significant disadvantages to patients.
Raquel Ahnert Aguiar Evangelista   +3 more
doaj   +1 more source

Three-dimensional echocardiography in valve disease

open access: yesHeart International, 2009
This review covers the role of three-dimensional (3D) echocardiography in the diagnosis of heart valve disease. Several factors have contributed to the evolution of this technique, which is currently a simple and routine method: rapid evolution in probe ...
Cesare Fiorentini   +4 more
doaj   +1 more source

Nanostructured 316L Stainless Steel Stent Surfaces Improve Corrosion Resistance, and Enhance Endothelization and Hemocompatibility

open access: yesAdvanced Materials Interfaces, EarlyView.
This study investigates the impact of nanostructured surface modification on corrosion resistance, HUVEC functions, and platelet interactions of 316L SS for cardiovascular stents. Nanostructured surfaces enhanced HUVEC proliferation, migration, and angiogenesis‐related gene expression while reducing platelet adhesion and hemolysis.
Yasar Kemal Erdogan   +2 more
wiley   +1 more source

Thermodilution vs estimated Fick cardiac output measurement in an elderly cohort of patients: A single-centre experience [PDF]

open access: yes, 2019
AIMS: Patients referred to the cath-lab are an increasingly elderly population. Thermodilution (TD, gold standard) and the estimated Fick method (eFM) are interchangeably used in the clinical routine to measure cardiac output (CO).
Abawi, Dawud   +6 more
core   +1 more source

Effect of comprehensive cardiac rehabilitation after heart valve surgery (CopenHeartVR): study protocol for a randomised clinical trial

open access: yesTrials, 2013
BackgroundHeart valve diseases are common with an estimated prevalence of 2.5% in the Western world. The number is rising due to an ageing population. Once symptomatic, heart valve diseases are potentially lethal, and heavily influence daily living and ...
K. Sibilitz   +15 more
semanticscholar   +1 more source

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