Results 21 to 30 of about 5,529,262 (276)

Regulation of coronary blood flow [PDF]

Heart, 1971
Coronary blood flow is dependent upon arterial pressure, diastolic time, and small vessel resistance. The system is regulated to achieve a low flow high oxygen extraction and low myocardial Po(2). This setting is sensitive to change in oxygen needs.
openaire   +2 more sources

A CASE OF SUCCESSFUL USE OF PERCUTANEOUS TEMPORARY OCCLUSION OF THE HEART VENOUS SINUS IN PATIENT WITH ACUTE CORONARY SYNDROME WITH ST SEGMENT ELEVATION IN THE ABSENCE OF HEMODYNAMICALLY SIGNIFICANT ATHEROSCLEROTIC LESIONS OF THE CORONARY ARTERIES

Креативная хирургия и онкология, 2017
The search for new methods of adequate antegrade blood flow restoration in the coronary arteries of patients with acute coronary syndrome with ST-segment elevation (ACSesST) without hemodynamically significant atherosclerotic lesions of the coronary ...
B. E. Shakhov, E. B. Shakhov, E. B. Petrova, E. G. Sharabrin, E. V. Chebotar   +4 more
doaj   +1 more source

Flow regulation in coronary vascular tree: a model study.

PLoS ONE, 2015
BackgroundCoronary blood flow can always be matched to the metabolic demand of the myocardium due to the regulation of vasoactive segments. Myocardial compressive forces play an important role in determining coronary blood flow but its impact on flow ...
Xinzhou Xie, Yuanyuan Wang
doaj   +1 more source

CFD analysis on blood flow inside a symmetric stenosed artery: Physiology of a coronary artery disease

Science Progress, 2023
This research article interprets the computational fluid dynamics analysis on blood flow inside a symmetric stenosed artery. The current problem models the blood flow inside the left coronary artery as having a symmetric stenosis in the central region. A
Salman Akhtar, Zahir Hussain, Sohail Nadeem, I. M. R Najjar, A.M Sadoun   +4 more
doaj   +1 more source

The Differences of Quantitative Flow Ratio in Coronary Artery Stenosis with or without Atrial Fibrillation

Journal of Interventional Cardiology, 2023
Quantitative flow ratio (QFR) is a new method for the assessment of the extent of coronary artery stenosis. But it may be obscured by the cardiac remodeling and abnormal blood flow of the coronary artery when encountering atrial fibrillation (AF).
Wenbin Lu, Xiaoguo Zhang, Gaoliang Yan, Genshan Ma   +3 more
doaj   +1 more source

GLP‐1 Is a Coronary Artery Vasodilator in Humans

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018
Background The mechanism underlying the beneficial cardiovascular effects of the incretin GLP‐1 (glucagon‐like peptide 1) and its analogues in humans is elusive.
Sophie J. Clarke, Joel P. Giblett, Lucy L. Yang, Annette Hubsch, Tian Zhao, Muhammad Aetesam‐ur‐Rahman, Nick E. J. West, Michael O'Sullivan, Nichola Figg, Martin Bennett, Nicolai J. Wewer Albrechtsen, Carolyn F. Deacon, Joseph Cheriyan, Stephen P. Hoole   +13 more
doaj   +1 more source

Increased and continuous coronary arterial flow was induced by LV uncoupling condition using combined treatment of a microaxial heart pump and venoarterial extracorporeal membrane oxygenation

Physiological Reports, 2021
An emerging therapeutic modality, ECPELLA, which combines a transvalvular microaxial left ventricular (LV) assist device, Impella, and venoarterial membrane oxygenation (VA‐ECMO), has been applied for patients with refractory cardiogenic shock.
Motoko Kametani, Masahiro Yamada, Yoko Horibata, Tomohiro Sakamoto, Takashi Unoki   +4 more
doaj   +1 more source

Human red blood cells at work: identification and visualization of erythrocytic eNOS activity in health and disease [PDF]

, 2012
A nitric oxide synthase (NOS)-like activity has been demonstrated in human red blood cells (RBCs), but doubts about its functional significance, isoform identity and disease relevance remain.
Rodriguez-Mateos, Ana; id_orcid, Wolters, Dirk, Heiß, Christian, Rodriguez Mateos, Ana, Krenz, Thomas, Kuhnle, G. G. C., Cortese-Krott, Miriam M, Rodriguez-Mateos, Ana, Kelm, Malte, Cortese-Knott, Miriam M., Feelisch, Martin, Rodriguez-Mateos, Z, Kroncke, K.-D., Kröncke, Klaus-Dietrich, Sansone, R., Kuhnle, Gunter G. C., Kelm, M., Heiss, C., Krisp, C., Sansone, Roberto, Horn, P., Feelisch, M., Horn, Patrick, Krisp, Christoph, Krenz, T., Hogg, N., Kuhnle, Gunter, Kuhnle, Gunter G.C., Thasian-Sivarajah, S., Thasian-Sivarajah, Sivatharsini, Wolters, D., Cortese-Krott, Miriam M., Hogg, Neil, Cortese-Krott, M. M.   +33 more
core   +1 more source

Study of Coronary Sinus Flow Reserve Through Transesophageal Doppler Echocardiography in Normal Subjects

Arquivos Brasileiros de Cardiologia, 2002
OBJECTIVE - To evaluate the Coronary Flow Reserve in the Coronary Sinus through transesophageal Doppler echocardiography in normal subjects. METHODS - We obtained technically adequate flow samples for analysis in 10 healthy volunteers (37±8 years, 5 men)
José Ramos Filho, José A. F. Ramires, Marko Turina, Caio J. Medeiros, Mário Lachat, Jeane Tsutsui   +5 more
doaj   +1 more source

Clinical significance of PET-CT coronary flow reserve in diagnosis of non-obstructive coronary artery disease

BMC Research Notes, 2018
Objective To improve current knowledge of coronary flow reserve and non-obstructive coronary artery disease in terms of definition, features and clinical implications of measurement of coronary flow reserve (CFR), is an integrated measure of focal ...
Henry Anselmo Mayala, Khamis Hassan Bakari, Fabian Pius Mghanga, Wang ZhaoHui   +3 more
doaj   +1 more source