Results 11 to 20 of about 718,690 (296)
Effect of Cardiac Contraction on Coronary Blood Flow [PDF]
Circulation, 1957 In the experimental animal the basic and controversial problem was studied of the influence of cardiac contraction on coronary blood flow. Normally beating hearts were perfused at a constant pressure, and coronary inflow and outflow were determined. In order to assess the role of systole, prolonged periods of ventricular asystole and fibrillation were ...
D E, GREGG, D C, SABISTON
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Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016 BackgroundCerebral and cardiac blood flow are important to the pathophysiology and development of cerebro‐ and cardiovascular diseases. The purpose of this study was to investigate the age dependence of normal cerebral and cardiac hemodynamics in ...
Can Wu +8 more
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Cardiac Resynchronization Improves Coronary Blood Flow
The Tohoku Journal of Experimental Medicine, 2007 Asynchronous ventricular activation, induced by left bundle branch block, is known to have deleterious effects on the systolic and diastolic functions of the left ventricle (LV). Cardiac resynchronization therapy (CRT) has been proposed as a complementary method to improve the LV systolic performance by restoring the synchronized contraction patterns ...
Aydin, Yildirim +6 more
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Abnormal Myocardial Blood Flow Reserve Observed in Cardiac Amyloidosis [PDF]
, 2016 We performed real-time myocardial contrast echocardiography on a patient with cardiac amyloidosis and previous normal coronary angiography presenting with atypical chest pain to assess myocardial blood flow reserve (MBFR).
Greaves, K, Nam, MC, Nel, K, Senior, R
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Critical Ultrasound Journal, 2017 Background Non-invasive measures that can accurately estimate cardiac output may help identify volume-responsive patients. This study seeks to compare two non-invasive measures (corrected carotid flow time and carotid blood flow) and their correlations ...
Irene W. Y. Ma +7 more
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Influence of BMI on Cardiac Output and Peripheral Blood Flow in Young Adult Males [PDF]
Journal of Clinical and Diagnostic Research, 2018 Introduction: Obesity is increasing at an alarming rate in young population which has a direct effect on their cardiovascular health resulting in development of hypertension, dyslipidaemia and peripheral vascular diseases at an early stage of life.
Sumit Garg +2 more
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Function of arteries and veins in conditions of simulated cardiac arrest [PDF]
BioImpacts, 2021 Introduction: The study examined the behavior of vasculature in conditions of eliminated cardiac function using mathematical modeling. In addition, we addressed the question of whether the stretch-recoil capability of veins, at least in part accounts for
Seyed Mehdi Kamali Shahri +4 more
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Fractal Rigidity in Migraine [PDF]
, 2003 We study the middle cerebral artery blood flow velocity (MCAfv) in humans using transcranial Doppler ultrasonography (TCD). Scaling properties of time series of the axial flow velocity averaged over a cardiac beat interval may be characterized by two ...
Glaubic-Latka, Marta +3 more
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The Effects of Involuntary Respiratory Contractions on Cerebral Blood Flow during Maximal Apnoea in Trained Divers. [PDF]
PLoS ONE, 2013 The effects of involuntary respiratory contractions on the cerebral blood flow response to maximal apnoea is presently unclear. We hypothesised that while respiratory contractions may augment left ventricular stroke volume, cardiac output and ultimately ...
Troy J Cross +6 more
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Vasopressin impairs brain, heart and kidney perfusion: an experimental study in pigs after transient myocardial ischemia [PDF]
, 2008 Introduction: Arginine vasopressin (AVP) is increasingly used to restore mean arterial pressure (MAP) in low-pressure shock states unresponsive to conventional inotropes. This is potentially deleterious since AVP is also known to reduce cardiac output
Müller, Stig +5 more
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