Sentences with phrase «of cardiac output»

The brain represents 2 % of total body weight but it uses 15 % of the cardiac output, 20 % of the total oxygen consumption and 25 % of glucose consumption.

Saunas produce thermal stress or load to the body which initiates an autonomic nervous system response that increases peripheral circulation from 5 - 10 % of cardiac output to a maximum of 60 - 70 %.

These additional studies included assessment of cardiac output, ejection fraction, and fractional shortening as well as measurements of flow velocities and pressure gradients across the aortic valve, pulmonary valve and mitral valve.

One possible solution is the use of cardiac output monitoring to guide administration of intravenous fluid and inotropic drugs as part of a hemodynamic (blood flow) therapy algorithm (a step - by - step protocol for management of a health care issue).

Not exact matches

With a high resting heart rate and low HRV score, you realize that the heart is very inefficient, so low - intensity cardiac output training can be of significant value.

«To the best of our knowledge, this is the largest trial of a perioperative, cardiac output - guided hemodynamic therapy algorithm to date.

Rupert M. Pearse, M.D., of Queen Mary University of London, and colleagues randomly assigned patients (50 years of age or older) undergoing major gastrointestinal surgery to a cardiac output - guided hemodynamic therapy algorithm for intravenous fluid and inotrope (dopexamine) infusion during and 6 hours following surgery (n = 368) or to usual care (n = 366).

He added: «An abnormal Q wave indicates the presence of previous myocardial infarction or serious myocardial injury responsible for low cardiac output, heart failure and / or potentially fatal arrhythmias.

Slower swimming is an indication of reduced aerobic capacity and cardiac output, and likely makes fish easier targets for predators.

«The first trimester is particularly challenging and when most of the cardiovascular changes occur — cardiac output is increased by 30 — 50 per cent and heart rate by 15 per cent.

Cardiac output is a great example of this: high cardiac output is a key determinant of endurance exercise performance which requires long duration, low intensity training to optimallyCardiac output is a great example of this: high cardiac output is a key determinant of endurance exercise performance which requires long duration, low intensity training to optimallycardiac output is a key determinant of endurance exercise performance which requires long duration, low intensity training to optimally adapt.

In recent studies, the supplementation of Vitamin K2 - 7 improved cardiac output by 22 % at resting heart rate and 12 % at maximum heart rate.

Studies have indicated that the consumption of Creatine can support cardiac output in cases of heart failure or after a heart attack.

But, no matter what you choose, Cardiac Output Work is equally powerful and there aren't a lot of negatives related to programming 3D movement in low heart rate zones.

When people think about the biological processes that change with the onset of exercise - most think of an athlete's increased cardiac output and ventilation to support the increased physical demand.

For every liter of fluid lost during prolonged exercise, body temperature rises by 0.3 °C, heart rate elevates by about eight beats per minute, and cardiac output (the volume of blood pumped by the heart per minute) declines by 1 liter / min.

A variety of reasons can contribute to higher levels of oxygen consumption, but according to THIS article, cardiac output is the limiting factor:

Treatment has been shown to increase left ventricular wall thickness and improve cardiac output, increasing the ability to engage in high intensity exercise (which is beneficial for both heart health and the secretion of growth hormone by the pituitary gland).

• increased left ventricular ejection fraction (11, 12) • improved exercise tolerance (12, 13, 14) • increased cardiac output (15) • better prognosis for patients with chronic heart failure (16) • lowered markers of oxidative stress (17, 18)

Strengthens the contractility of the heart muscle, thereby increasing cardiac output, without increasing energy or oxygen consumption.

Weakness or collapse may be caused by abnormal heart rhythms (arrhythmias) and poor distribution of blood (depressed cardiac output).

Cardiac output, or the amount of blood pumped out of the heart to the rest of the body, is reduced and often congestive heart failure develops or recurs.

This action interferes with the blood supply to the stomach and other digestive organs, blocks the passage of food, causes the stomach to distend, impedes the return of blood to the heart and results in reducing cardiac output.

Meticulous auscultation will allow detection of cardiac disease signs such as a murmur, arrhythmia, pulse deficit or signs of reduced cardiac output such as pale mucous membranes.

A decrease in cardiac output or less vascular resistance reduces arterial pressure and may result in reduction of cerebral blood flow.

Cardiomyopathy is a disease where the actual heart muscle (myocardium) becomes weak and unable to contract with sufficient force (decreased contractility leading to a decreased stroke volume) to provide adequate perfusion (reduced cardiac output) for the cells of the body.

As the stomach begins to turn, a cascade of pathological events begin to occur: compression of the caudal vena cava and portal vein (blood flow to the heart), reduced cardiac output and myocardial ischemia, shock, perfusion to critical organs is reduced and fatality if not corrected quickly.

This helps to visualize the heart valves, look for blood clots, measure the thickness of the walls of each heart chamber and even measure cardiac output.

As intrapericardial pressure continues to rise, it causes collapse of the right side of the heart, preventing cardiac output into the pulmonary artery.

Fox PR, Broussard JD, Peterson ME: Hyperthyroidism and other high cardiac output states, In: Fox PR, Sisson D, Moise NS (eds): Textbook of Canine and Feline Cardiology: Principles and Clinical Practice (Second Edition).

The VCS research laboratory is equipped to perform state - of - the - art in vivo cardiovascular studies, including myocardial energetics and systolic and diastolic performance (left ventricular pressure - volume relationship), high fidelity vascular pressure studies, aortic flow - velocity relationship (input impedance), cardiac output (thermodilution) using Swan - Ganz catheters, echocardiography and ultrasonographic determination of flow velocity within blood vessels, and conventional and signal - averaged electrocardiography.

These reactions may range from mild swelling at the site of injection or a mild decrease in cardiac output, to a full - blown episode of anaphylactic shock or death.

It usually goes undetected, until the dog suffers catastrophic circulatory collapse, due either to hemorrhage or to cardiac compromise, such as pericardial effusion and tamponade (leakage of blood or fluid into the pericardial sack surrounding the heart with eventual compression of the heart and interference with cardiac output.)

Its evaluation is relevant for the identification of cardiovascular abnormalities like hypotension, dysrhythmias, hyperdynamic states, decreased cardiac output and peripheral vasoconstriction.

Since the amount of blood pumped by the heart per minute (cardiac output) is the product of the amount of blood ejected per contraction (stroke volume) and the heart rate in beats per minute, this decreased chamber volume (and subsequent stroke volume) results in an increased heart rate (tachycardia) as a reflex mechanism to maintain cardiac output and blood pressure.

According to the research results, the small monocrystalline solar cells (22 % efficiency) used in the study were able to generate «much more» than the typical 5 to 10 microwatts that typical cardiac pacemakers use, as even the lowest power output measured by the devices was an average of 12 microwatts.