Results 1 to 10 of about 30,128 (312)

The Concept of Coronary Flow Reserve

Journal of Cardiovascular Pharmacology, 1992
Coronary reserve has been defined as the ratio of coronary resistance under control (rest) conditions and of coronary resistance after maximal coronary vasodilation. The latter can be achieved by various interventions, the most important and clinically relevant example being intravenous administration of dipyridamole at 0.5 mg/kg of body weight.
B. E. Strauer
openalex   +4 more sources

AT1 receptors: coronary flow and flow reserve [PDF]

American Journal of Hypertension, 2000
Angiotensin II, through its effects at the angiotensin-type 1 receptor, elevates arterial pressure and exacerbates hypertensive heart disease. Alterations in coronary hemodynamics, including reductions in coronary blood flow and flow reserve promotes coronary insufficiency and contributes to the increased cardiovascular risk associated with these ...
Edward D. Fröhlich
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Continuous Versus Bolus Thermodilution‐Derived Coronary Flow Reserve and Microvascular Resistance Reserve and Their Association With Angina and Quality of Life in Patients With Angina and Nonobstructive Coronaries: A Head‐to‐Head Comparison [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Coronary flow reserve (CFR) and microvascular resistance reserve (MRR) are physiological parameters to assess coronary microvascular dysfunction. CFR and MRR can be assessed using bolus or continuous thermodilution, and the correlation between
Tijn P. J. Jansen, Annemiek de Vos, Valeria Paradies, Aukelien Dimitriu‐Leen, Caïa Crooijmans, Suzette Elias‐Smale, Laura Rodwell, Angela H. E. M. Maas, Pieter C. Smits, Nico Pijls, Niels van Royen, Peter Damman   +11 more
doaj   +2 more sources

Three-Dimensional Angiographic Characteristics versus Functional Stenosis Severity in Fractional and Coronary Flow Reserve Discordance: A DEFINE FLOW Sub Study [PDF]

Diagnostics, 2022
Background: Coronary angiography alone is insufficient to identify lesions associated with myocardial ischemia that may benefit from revascularization.
Valerie Stegehuis, Jelmer Westra, Coen Boerhout, Martin Sejr-Hansen, Ashkan Eftekhari, Hernan Mejía-Renteria, Maribel Cambero-Madera, Niels Van Royen, Hitoshi Matsuo, Masafumi Nakayama, Maria Siebes, Evald Høj Christiansen, Tim Van de Hoef, Jan Piek   +13 more
doaj   +2 more sources

Prior SARS‐CoV‐2 Infection Is Associated With Coronary Vasomotor Dysfunction as Assessed by Coronary Flow Reserve From Cardiac Positron Emission Tomography [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Cardiovascular complications from COVID‐19 contribute to its high morbidity and mortality. The effect of COVID‐19 infection on the coronary vasculature is not known.
Brittany Weber, Sean Parks, Daniel M. Huck, Andy Kim, Camden Bay, Jenifer M. Brown, Sanjay Divakaran, Jon Hainer, Courtney Bibbo, Viviany Taqueti, Sharmila Dorbala, Ron Blankstein, Ann E. Woolley, Marcelo F. Di Carli   +13 more
doaj   +2 more sources

Multiparametric analysis of coronary flow in psoriasis using a coronary flow reserve companion. [PDF]

Eur J Clin Invest, 2022
AbstractBackgroundCoronary microvascular dysfunction (CMD) is usually evaluated measuring coronary flow velocity reserve (CFVR). A more comprehensive analysis of CFVR including additional consideration of the associated logical companion‐CFVR, where hyperemic diastolic coronary flow velocity may act as surrogate, was applied in this study to elucidate ...
Tona F, Osto E, Kerkhof PLM, Montisci R, Famoso G, Lorenzoni G, De Michieli L, Cecere A, Zanetti I, Civieri G, Iliceto S, Piaserico S.   +11 more
europepmc   +6 more sources

To Explore the Influencing Factors of Pericoronary Adipose Tissue and Noninvasive Fractional Flow Reserve on the Progression of Coronary Heart Disease Based on 320-Slice Coronary CTA

Anatolian Journal of Cardiology, 2023
Background: The objective of the study was to measure pericoronal adipose tissue parameters, fractional flow reserve with coronary artery computed tomographic angiography (CTA), and difference of fractional flow reserve with coronary artery CTA, by using
Shuming Liu, Huiyuan Guan, Sheng Li
doaj   +1 more source

Structure (Epicardial Stenosis) and Function (Microvascular Dysfunction) That Influence Coronary Fractional Flow Reserve Estimation

Applied Sciences, 2022
Background. The treatment of coronary stenosis is decided by performing high risk invasive surgery to generate the fractional flow reserve diagnostics index, a ratio of distal to proximal pressures in respect of coronary atherosclerotic plaques.
Jermiah J. Joseph, Clara Sun, Ting-Yim Lee, Daniel Goldman, Sanjay R. Kharche, Christopher W. McIntyre   +5 more
doaj   +1 more source

Prognostic Implications of Resistive Reserve Ratio in Patients With Coronary Artery Disease

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Resistive reserve ratio is a thermodilution‐based index which integrates both coronary flow and pressure. Resistive reserve ratio represents the vasodilatory capacity of interrogated vessels including both epicardial coronary artery and ...
Seung Hun Lee, Joo Myung Lee, Jonghanne Park, Ki Hong Choi, Doyeon Hwang, Joon‐Hyung Doh, Chang‐Wook Nam, Eun‐Seok Shin, Masahiro Hoshino, Tadashi Murai, Taishi Yonetsu, Hernán Mejía‐Rentería, Tsunekazu Kakuta, Javier Escaned   +13 more
doaj   +1 more source

Intravascular Imaging versus Physiological Assessment versus Biomechanics—Which Is a Better Guide for Coronary Revascularization

Diagnostics, 2023
Today, coronary artery disease (CAD) continues to be a prominent cause of death worldwide. A reliable assessment of coronary stenosis represents a prerequisite for the appropriate management of CAD.
Miłosz Starczyński, Stanisław Dudek, Piotr Baruś, Emilia Niedzieska, Mateusz Wawrzeńczyk, Dorota Ochijewicz, Adam Piasecki, Karolina Gumiężna, Krzysztof Milewski, Marcin Grabowski, Janusz Kochman, Mariusz Tomaniak   +11 more
doaj   +1 more source