The coronary arteries supply blood to the heart muscle itself. Damage to or blockage of a coronary artery can result in injury to the heart. Normally, ...
MedlinePLUS
Anomalous left coronary artery is a heart defect in which the left coronary artery, which usually carries blood to ...
Coronary blood flow is blood flow to the heart for its own metabolic needs. In the most common form of heart disease there is a disruption in this flow because of obstructive disease in the vessels that carry the flow. The subject of coronary blood flow is therefore associated mostly with the ...
NASA Astrophysics Data System (ADS)
Coronary heart disease is the most common cause of death in the United States. The conventional risk factor approach to primary prevention excludes many patients who could benefit from preventive therapies. A global risk approach allows more accurate estimates of risk to guide clinical primary prevention efforts. Global risk of coronary heart disease is a ...
PubMed
Background:Evidence on socioeconomic inequalities in coronary heart disease (CHD) and their pathways in the elderly is limited. Little is also known about the contributions that novel coronary risk factors (particularly inflammatory/hemostatic markers) make to socioeconomic inequalities in CHD. Objectives:To examine the extent of socioeconomic inequalities ...
PubMed Central
There are several limitations in using absolute myocardial clearance of thallium-201 for the detection of coronary artery disease. Noncardiac factors such as peak exercise heart rate and blood level of thallium can affect its absolute myocardial clearance. However, because all myocardial segments in a given heart ...
Energy Citations Database
The authors, using a new digital coronary radiographic technique, report the demonstration of contrast-material-induced coronary artery steal. Attempts to measure myocardial blood flow using arteriographic techniques in the setting of complex coronary anatomy can be complicated by heterogeneous flow patterns.
... Pagination or Media Count : 19. Abstract : Low levels of carboxyhemoglobin can cause significant changes in coronary blood flow. ...
DTIC Science & Technology
938 ... www.nlm.nih.gov ... The right coronary artery supplies blood from the aorta to the right side of the heart.
... systolic blood pressure. Coronary artery disease, Heart disease, Lipids, Lipoproteins, Risk factors. Descriptors : *CORONARY ...
Acute Coronary Syndrome; Angioplasty, Transluminal, Percutaneous Coronary; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Blood Platelets
ClinicalTrials.gov
The authors have developed a new method to quantitate changes in coronary blood flow (CBF) by single photon emission tomography (SPECT) of dual-labelled intracoronary human albumin microspheres (HAM) before and after an intervention. After initial validation in pigs, the authors studied 20 pts in the cath lab with 10 pts receiving saline to serve as ...
The objective of this method is the continuous recording of vascular diameters and their measurement in absolute terms. This can be accomplished by percutaneously introduced intravascular sensors (IVS) or surgically implanted perivascular sensors (PVS). Both types of sensor are made of bifilar insulated wires forming a bifilar loop. One wire of the bifilar loop acts as a ...
... Both the amplitude of the T-wave of the left ventricular surface electrocardiogram and left circumflex coronary artery blood flow velocity decreased ...
The routine use of sensor-tipped guide wires for the assessment of functional coronary lesion severity has become widespread in the catheterization laboratory. The physiological parameters derived from pressure or flow velocity measurements, fractional flow reserve, relative and absolute coronary blood flow ...
Metabolic substrate utilization of the human failing heart is an area of controversy. The purpose of this study is to directly quantify myocardial substrate utilization in moderately severe heart failure, type 2 diabetes and healthy controls using simultaneous coronary sinus and arterial blood sampling. Patients with heart failure (n?=?9, mean NYHA ...
... plasma, Blood transfusion, Calcium compounds, Chlorides, Infusions, Coronary disease, Blood platelets, Blood coagulation, Blood proteins, Drugs ...
Coronary flow reserve (CFR) is an important index of coronary microcirculatory function. The objective of this study was to validate the reproducibility and accuracy of intravascular conductance catheter-based method for measurements of baseline and hyperemic coronary flow velocity (and hence CFR). The absolute ...
Aorta Diseased Artery Normal Artery Coronary Arteries Narrowing of Artery Atherosclerosis Heart M. Glass, MD, Editor Coronary heart disease is disease that results from narrowing or blockage of the coronary arteries. The coronary arteries are the arteries that supply blood and, therefore, ...
E-print Network
Coronary artery disease Basics In-Depth Multimedia Expert Answers Resources What's New Definition Symptoms Causes Risk factors Complications Preparing ... family. Get Started Definition By Mayo Clinic staff Coronary artery disease develops when your coronary arteries � the major blood ...
...Cardiopulmonary bypass coronary pressure gauge. (a) Identification. A cardiopulmonary bypass coronary pressure gauge is a device used in cardiopulmonary bypass surgery to measure the pressure of the blood perfusing the coronary...
Code of Federal Regulations, 2011
Changes in myocardial substrate utilization were studied following experimental coronary hypotension in the isolated heart of a small dog perfused with the blood of a large donor animal. Prolonged severe hypotension caused a decreased coronary sinus blood...
National Technical Information Service (NTIS)
... Descriptors : *BLOOD VESSELS, *ORGANIZATIONS, HEART, BIBLIOGRAPHIES, THROMBOSIS, MONITORS, MORTALITY RATE ...
Arterial Occlusive Diseases; Cardiovascular Diseases; Peripheral Vascular Diseases; Coronary Disease
... the establishment. (Total red blood cell product volume = weight of the RBC divided by the appropriate specific gravity. Absolute ...
Center for Biologics Evaluation and Research (CBER)
... of mouse peripheral blood tested were total white blood cells and the absolute numbers of polymorphonuclear leucocytes, monocytes, lymphocytes ...
Aims: Accelerated idioventricular rhythm (AIVR) is very frequently observed in primary percutaneous coronary intervention (PCI), however knowledge of the haemodynamic effects is lacking. Methods and results: We studied an ST-segment elevation myocardial infarction cohort of 128 consecutive patients (aged 62�11years) in whom AIVR occurred following reperfusion during primary ...
This study was done to determine the value of thallium-201 myocardial scintigraphic imaging (MSI) for identifying disease in the individual coronary arteries. Segmental analysis of rest and stress MSI was performed in 133 patients with ateriographically proved coronary artery disease (CAD). Certain scintigraphic segments were highly specific (97 to 100%) ...
Aims:? The aim was to evaluate treatment goal achievements early in the course of Type?2 diabetes, and their effect on 10-year risk of coronary heart disease in patients receiving usual care. Methods:? Assessment of risk factor control 3?years after diagnosis in patients with Type?2 diabetes with no previous coronary heart disease included from the Swedish ...
Among others as cause of the sigma R-amplitude in the ECG changes of the ventricular filling and the stroke volume, respectively, the sympathetic tone and the coronary blood supply are discussed. Patients with absolute arrhythmia in atrial fibrillation as well as patients with extrasystoles represent model examples, in whom of the ...
... Blood flowing through non-exchanging channels, eg ... of measurements of cerebral and carotid blood flows. ... increase in carotid blood flow after the ...
Atherosclerosis develops in a patchy, discontinuous fashion within coronary arteries. Therefore, it is possible to treat the discrete areas of obstruction that most impede coronary blood flow to the myocardium. The mechanical approaches to coronary revasc...
Therapy Refractory Myocardial Ischemia; Coronary Artery Disease; Unsuitable for Surgical or Percutaneous Revascularisation
If you have coronary artery disease (CAD), the arteries that supply blood and oxygen to the heart muscle become hardened and narrowed. If lifestyle changes ...
... time of a coronary ventricular pressure pulse ... this manner, synchronous cardiac assistance can be ... systems, Heart, Logic devices, Signal processing ...
blood to the heart muscle) is connected to the pulmonary artery instead of to the aorta. ALCAPA is present at birth (congenital). Causes An anomalous left coronary artery...
Science.gov Websites
Pharmacologic stress testing with dipyridamole is useful in patients undergoing thallium-201 myocardial perfusion scintigraphy who cannot adequately exercise. Because dipyridamole increases coronary blood flow by reducing the metabolism of adenosine, the authors compared the uptake and clearance of T1-201 following exercise stress testing (EST) and resting ...
The heart is unique among other organs in that coronary arterial flow is exclusively diastolic and venous outflow is systolic. That is, arterial blood flows into intramyocardial coronary vessels during diastole and the stored blood is squeezed out mostly to epicardial veins and partly to the proximal arteries ...
To study the influence of hypometabolism on evolving myocardial infarction in a model with intact autoregulation, we investigated 53 awake dogs after coronary artery occlusion. Severe hypothyroidism was induced by the intravenous administration of 131I. Animals were instrumented to obtain hemodynamic measurements, and regional myocardial blood flow was ...
Patients with catheter fragments that were entrapped during percutaneous transluminal coronary angioplasty remain a particular challenge because little is known about the clinical outcome. Absolutely unique is the partially cutting of the dilator and the pushing of the fragment by the guidewire advancing into the femoral artery to the ...
Three patients referred for peripheral vascular surgery who died of coronary artery disease complications despite normal dipyridamole-thallium scans are discussed. Although recent literature has shown enthusiasm for this test in this clinical setting, the dipyridamole-thallium scans are not absolute and patients remain at risk for major ...
of decline and nadir of peripheral blood absolute lymphocyte depletion. The "normal" range for absolute lymphocyte count can vary, even in a healthy adult population. See graph...
be useful for the detection of coronary artery disease (see Fig. 3). Myocardial Perfusion Imaging Figure 3 by a narrowing of the coronary arteries which deliver oxygen and nutrients to cardiac muscle (myocardium). IHD resonance imaging (MRI) of the coronary arteries and blood de- livery to the myocardium. ...
The contribution of beta adrenergic augmentation to the coronary circulation was examined in a variety of circumstances. In the unanesthetized dog, beta sympathetic tone appears to contribute only minimally to the resting coronary blood flow. Pharmacologi...
A study of the Israeli population includes (1) the epidemiology of coronary risk factors such as lipoprotein, blood pressure, diabetes and obesity, (2) relationship of physical activity and the heart, (3) nutrition and lipoprotein, (4) coronary, cerebral ...
Percutaneous transluminal coronary angioplasty (PTCA) is a technique used to improve myocardial blood flow by dilating focal atherosclerotic stenoses in coronary arteries. A balloon-tipped flexible catheter is inflated in situ to dilate and recanalize the...
Methods and assays are disclosed for predicting a patient's risk for coronary artery disease. The methods comprise obtaining a biological sample from a patient and determining the amount of nitrated fibrinogen which is linked with coronary artery disease....
to the blood flow and is related to the time a bolus of cold saline needs to travel down the coronary artery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 7 Continuous infusion thermodilution for assessment of coronary flow: Human study 71 7 pressure and volume changes in humans 85 8.1 Introduction
AIM.Generic drugs are more and more frequently used instead of originators. However, uncertainty exists with respect to therapeutic equivalence of generic product with originator one. Therefore, in this study efficacy and safety of generic atorvastatin was compared to reference product. In patients with increased low density lipoprotein cholesterol (LDL-C) levels of cholesterol and changes of ...
Cigarette smoking is strongly associated with ischemic heart disease and acute coronary events. The effect of smoking a single cigarette on regional myocardial perfusion was studied in 13 chronic smokers with typical stable angina pectoris using positron emission tomography and rubidium-82 (/sup 82/Rb). Findings were compared with the effects of physical exercise. After ...
). Injection of 3 mL of saline and t 0 are indicated by arrows. Note that coronary blood flow is not influenced influence blood flow.16�18 Importantly, the injection of saline as described here did not influence coronaryCoronary Thermodilution to Assess Flow Reserve Validation in Humans Nico H.J. Pijls, MD, Ph
In OPCAB (off-pump coronary artery bypass) operations, development of cardiac arrest during the distal anastomosis to obtuse marginal coronary artery leads to significantly low blood pressure in the ascending aorta. Therefore, blowing of compressed air in high flow on not-slinged coronary artery may cause air ...
... CINEMATOGRAPHY, USSR, X RAYS, DIAGNOSIS(MEDICINE), TRANSLATIONS, HEART, BLOOD CIRCULATION, CORONARY DISEASE. ...
... the top or first number of a blood pressure measurement.) After menopause, women tend to have more of ...
... Myocardial ischemia is associated with a reduction of coronary blood flow to the myocardium [1], and the damage to the myocardium may be a ...
... The problems of ulcers, high blood pressure, allergies, and coronary heart disease are believed to be in part precipitated by stress. ...
Cardiovascular Diseases; Coronary Disease; Heart Diseases; Hypertension; Blood Disease; Lung Diseases
... on the cardiac blood supply in acute disorder of the coronary circulation, by GA Markova The effect of aminophylline, papaverine, nitro glycerin and ...
... OF SIMULATED HIGH ALTITUDE ON LEFT CIRCUMFLEX CORONARY FLOW, BLOOD PRESSURE, CARDIAC OUTPUT, AND MYOCARDIAL ...
... Long-term effects of laser energy and diet on arterial wall. ... Aggressive blood conservation in coronary artery surgery: Impact on patient care. ...
... causes little to no pain, although you may feel some soreness in the blood vessel where your doctor put the catheter. Cardiac ...
... 5% increase the risk of angina pectoris and coronary infarctions by decreasing the oxygen supply in the blood and also in the myoglobin of the ...
... development of coronary heart disease by direct ... HEALTH, CONCENTRATION( CHEMISTRY), BLOOD, URINE, CARDIOVASCULAR DISEASES. ...
