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*  Impedance cardiography
Systemic (global) blood flow parameters are (a) the blood flow per heartbeat, the Stroke Volume, SV [ml/beat], and (b) the ... induced level of contractility is modulated by variation of intravascular volume (volume expansion or volume reduction/diuresis ... such as Stroke Volume, SV, Heart Rate, HR, Cardiac Output, CO, Ventricular Ejection Time, VET, Pre-ejection Period and used to ... stroke volume, systemic vascular resistance, thoracic fluid content, acceleration index, and systolic time ratio. What is TEB ...
*  Brain morphometry
Class-specific volumes for WM and CSF are defined analogously. The local differences in the density or volume of the different ... Of course, some events like accidents, a stroke, a tumor metastasis or a surgical intervention can profoundly change brain ... In order to correct for the volume changes due to the registration, the gray matter volume (GMV) in the original brain can be ... Brain diseases are the field to which brain morphometry is most often applied, and the volume of the literature on this is vast ...
*  Silent stroke
2008). "Association of plasma total homocysteine levels with subclinical brain injury: Cerebral volumes, white matter ... A silent stroke is a stroke that does not have any outward symptoms associated with stroke, and the patient is typically ... This type of stroke accounts for approximately 87 percent of all stroke cases. Hemorrhagic stroke: occurs when a blood vessel ... A TIA is a risk factor for having a major stroke and subsequent silent strokes in the future. Ischemic stroke: occurs when a ...
*  Stroke volume
In cardiovascular physiology, stroke volume (SV) is the volume of blood pumped from the left ventricle per beat. Stroke volume ... which is stroke volume divided by end-diastolic volume. Because stroke volume increase in certain conditions and disease states ... Stroke volume is an important determinant of cardiac output, which is the product of stroke volume and heart rate, and is also ... Heart rate and Stroke Volume are unfixed. EF math needs to be more transparent. Men, on average, have higher stroke volumes ...
*  Esophogeal doppler
The product of stroke distance and aortic constant gives stroke volume (how much blood was ejected from a heartbeat into the ... It is minimally invasive (does not break the skin) and is used to derive hemodynamic parameters such as stroke volume (SV) and ... Cardiac output (CO) is the product of stroke volume and heart rate. Although CO is available beat by beat, it is usually ... such as stroke volume (SV), flow-time corrected (FTc) and cardiac output (CO). Using manual input of age, weight and height; ...
*  Effects of high altitude on humans
In addition, at high altitude, the heart beats faster; the stroke volume is slightly decreased; and non-essential bodily ... Faeh, David; Gutzwiller, Felix; Bopp, Matthias (2009). "Lower Mortality From Coronary Heart Disease and Stroke at Higher ... enlarged lung volumes throughout life, and a higher capacity for exercise. Tibetans demonstrate a sustained increase in ... decreased plasma volume, increased hematocrit (polycythemia), increased RBC mass, a higher concentration of capillaries in ...
*  Cardiovascular physiology
Stroke volume (= end-diastolic volume - end-systolic volume) Ejection fraction (= stroke volume / end-diastolic volume) (( ... Suction volume (= end-systolic volume + end-diastolic volume) Injection fraction (=suction volume / end-systolic volume) ... Cardiac output (= heart rate * stroke volume. Can also be calculated with Fick principle.) ... Stroke volume Cardiac output Pressure Pulse pressure (systolic pressure - diastolic pressure) Mean arterial pressure (usually ...
*  End-diastolic volume
End-systolic volume Stroke volume Maceira, Alicia (2006). "Reference right ventricular systolic and diastolic function ... stroke volume). The right ventricular end-diastolic volume (RVEDV) ranges between 100 and 160 mL. The right ventricular end- ... In cardiovascular physiology, end-diastolic volume (EDV) is the volume of blood in the right and/or left ventricle at end load ... diastolic volume index (RVEDVI) is calculated by RVEDV/BSA and ranges between 60 and 100 mL/m2. ...
*  Bainbridge reflex
"Effects on cardiac contractility and stroke volume are insignificant." The Bainbridge reflex and the baroreceptor reflex ... Increased blood volume results in increased venous return to the heart, which leads to increased firing of B-fibers. B-fibers ... Increased blood volume is detected by stretch receptors (Cardiac Receptors) located in both atria at the venoatrial junctions. ... In contrast, the Bainbridge reflex responds to changes in blood volume. The Bainbridge reflex is seen in dogs, but experiment ...
*  Müller's sign
... is caused by an increased stroke volume. Müller's sign is named for Friedrich von Müller, a German physician. ...
*  Quantium Medical Cardiac Output
Frazier, J. (2007). "Stroke Volume Variation' Can We Use Fluid to Improve haemodynamics?". Clin. Mark. Edwards Lifesciences. ... Usually for calculating the stroke volume, the methods based on pulse wave analysis need previous and periodic calibrations ... and Stroke Volume (SV). The SV in turn, depends on three general factors: pre-load, post-load and myocardial contractility. In ... and other hemodynamic parameters such as the Stroke Volume (SV) and Cardiac index (CI). The CO estimated by the qCO monitor is ...
*  Pathophysiology of hypertension
Cardiac output is determined by stroke volume and heart rate; stroke volume is related to myocardial contractility and to the ... Persistent hypertension is a major risk factor for hypertensive heart disease, coronary artery disease, stroke, aortic aneurysm ... The autonomic nervous system plays a central role in maintaining cardiovascular homeostasis via pressure, volume, and ... Another system maintaining the extracellular fluid volume, peripheral resistance, and that if disturbed may lead to ...
*  Essential hypertension
Cardiac output is determined by stroke volume and heart rate; stroke volume is related to myocardial contractility and to the ... When sodium intake exceeds the capacity of the body to excrete it through the kidneys, vascular volume expands secondary to ... The increase in blood volume leads to hypertension. An overactive sympathetic nervous system, leading to increased stress ...
*  Digitalis
... stroke volume is increased. Ultimately, digitalis increases cardiac output (Cardiac Output=Stroke Volume x Heart Rate). This is ...
*  Heart
Ejection fraction can then be obtained by dividing the volume ejected by the heart (stroke volume) by the volume of the filled ... stroke volume) in one minute. This is calculated by multiplying the stroke volume (SV) by the beats per minute of the heart ... using an average stroke volume of about 70mL, is 5.25 L/min, with a normal range of 4.0-8.0 L/min. The stroke volume is ... The strength of heart muscle contractions controls the stroke volume. This can be influenced positively or negatively by agents ...
*  Valsalva maneuver
Stroke volume and blood pressure falls, while the heart rate increases. The Valsalva maneuver is used to aid in the clinical ... The fall in stroke volume reflexively causes blood vessels to constrict with some rise in pressure (15 to 20 seconds). This ... This causes a mild rise in stroke volume during the first few seconds of the maneuver. Reduced venous return and compensation ... The output of the heart is reduced and stroke volume falls. This occurs from 5 to about 14 seconds in the illustration. ...
*  Athletic heart syndrome
This type of exercise also increases both heart rate and stroke volume of the heart. Both static and dynamic exercises involve ... The heart becomes enlarged, or hypertrophic, due to intense cardiovascular workouts, creating an increase in stroke volume, an ... It also moderately increases heart rate and stroke volume (oxygen debt). Dynamic exercises include running, swimming, skiing, ...
*  Heart failure with preserved ejection fraction
Heart Rate Cardiac output is dependent on stroke volume and heart rate. A significant portion (55-77%) of HFpEF patients are ... Combined with the characteristic deficit in stroke volume observed in HFpEF patients, many individuals display poor exercise ... This leads to a corresponding increase in left ventricular end diastolic volume. Cellular Abnormalities Cellular changes ... Frequently this involves administration of diuretics to relieve complications associated with volume overload, such as leg ...
*  Pulsus paradoxus
... reducing maximum volume. Reduced left-heart filling leads to a reduced stroke volume which manifests as a decrease in systolic ... This results in a decrease in stroke volume, contributing to the decreased pulse pressure and increased heart rate as described ... Guntheroth W, Morgan B, Mullins G (1967). "Effect of respiration on venous return and stroke volume in cardiac tamponade. ... Pulsus paradoxus, also paradoxic pulse or paradoxical pulse, is an abnormally large decrease in stroke volume, systolic blood ...
*  Cardiac output
McGee, W. T. (2009). "A Simple Physiologic Algorithm for Managing Hemodynamics Using Stroke Volume and Stroke Volume Variation ... By synchronizing fluid volume changes with the heartbeat, the change in impedance can be used to calculate stroke volume, ... The measurement of Stroke Volume Variation (SVV), which predicts volume responsiveness is intrinsic to all arterial waveform ... and the stroke volume (SV), which is the volume of blood pumped from the ventricle per beat; thus, CO = HR × SV. Values for ...
*  Cardiac physiology
... controls the stroke volume which determines the end systolic volume. The greater the contraction the greater the stroke volume ... This quantity is referred to as stroke volume. Stroke volume will normally be in the range of 70-80 mL. Since ventricular ... stroke volume, SV) in one minute. To calculate this, multiply stroke volume (SV), by heart rate (HR), in beats per minute. It ... stroke volume is dependent upon the difference between end diastolic volume and end systolic volume. The three primary factors ...
*  Reduced muscle mass, strength and performance in space
A significant decrement in cardiac stroke volume was associated with diminished exercise tolerance. It was not clear whether ... This, the observed diminished stroke volume (cardiac output) is certainly contributory and, in turn, is a reflection of ... and then summing the segment volumes to obtain the volume of each extremity. The second study included the first muscle ... Volume decreased by 5.8% in the soleus, 4.0% in the gastrocnemius, and 4.3% in the total compartment. These losses were stated ...
*  Physiological response to water immersion
Plasma volume, stroke volume, and cardiac output remain higher than normal during immersion. The increased respiratory and ... Stroke volume is not greatly affected by immersion or variation in ambient pressure, but bradycardia reduces the overall ... Lung volume decreases in the upright position due to cranial displacement of the abdomen due to hydrostatic pressure, and ... The fluid shift is largely from the extravascular tissues and the increased atrial volume results in a compensatory diuresis. ...
*  Photoplethysmogram
Conversely during expiration, the heart is compressed, decreasing cardiac efficiency and increasing stroke volume. When the ... The change in volume caused by the pressure pulse is detected by illuminating the skin with the light from a light-emitting ... studied the interaction between inspiration and removal of 10% of a patient's blood volume for blood banking before surgery. ... while the AC component is directly attributable to variation in blood volume in the skin caused by the pressure pulse of the ...
*  Ventricular remodeling
Ultimately, ventricular remodeling may result in diminished contractile (systolic) function and reduced stroke volume. ... but may be from a number of causes that result in increased pressure or volume, causing pressure overload or volume overload ( ... This thin, weakened area is unable to withstand the pressure and volume load on the heart in the same manner as the other ... Ventricular mass and volume increase, which together adversely affect cardiac function. Eventually, diastolic function, or the ...
*  Retarder (mechanical engineering)
This raises the pressure in the exhaust system, forcing the engine to work harder on the exhaust stroke of its cylinders, so ... Diesel engines regulate power output purely by the volume and timing of fuel injected into the combustion chambers. The engine ... rather than at the end of the power stroke, the accumulated compressed air in the cylinder could be vented before it could act ... excessive stress associated with opening the exhaust valves of the engine near top dead center of engine compression strokes ...
*  Admittance and conductance in cardiac performance
June 1981). "Continuous stroke volume and cardiac output from intra-ventricular dimensions obtained with impedance catheter". ... Blood conductance can then be converted to volume using a linear (Baan) or a non-linear (Wei) relationship that relates ... Wei CL, Valvano JW, Feldman MD, Nahrendorf M, Peshock R, Pearce JA (August 2007). "Volume catheter parallel conductance varies ... Wei CL, Valvano JW, Feldman MD, Pearce JA (October 2005). "Nonlinear conductance-volume relationship for murine conductance ...