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Showing 1 to 20 of 105 for “"mean arterial pressure"”.
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Mean Arterial Pressure in Acute Ischemic Stroke Study
… evidence available on the validation of blood pressure (BP) measurements obtained in the acute care setting. Despite this, acute stroke practitioners trust and rely on non-invasive blood pressure (NIBP) devices to guide acute ischemic stroke (AIS) patients’ treatment. Although systolic blood …
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Development of a new device to measure finger's mean arterial pressure
Measuring the blood pressure is a vital process in order to diagnose the health problem particularly to avoid the heart attack or stroke. Currently, there are two common procedures to test the blood pressure namely via the automated oscillometric device and the manual auscultatory device. Both …
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Automatic Control Strategies of Mean Arterial Pressure and Cardiac Output. MIMO controllers, PID, internal model control, adaptive model reference, and neural nets are developed to regulate mean arterial pressure and cardiac output using the drugs sodium Nitroprusside and dopamine
High blood pressure, also called hypertension is one of the most common worldwide diseases afflicting humans and is a major risk factor for stroke, myocardial infarction, vascular disease, and chronic kidney disease. If blood pressure is controlled and oscillations in the hemodynamic variables are …
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The Effects of Hemoglobin-Based Oxygen Carriers On Mean Arterial Pressure, Arteriolar Diameter, and Nitric Oxide in the Microcirculation
… study, the mechanisms through which HBOCs affect mean arterial pressure (MAP), arteriolar diameter, and nitric oxide levels in the microcirculation were investigated, using Oxyglobin (HBOC-301), a third generation glutaraldehyde-polymerized bovine hemoglobin. The spinotrapezius muscle of female …
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Alterations in the Brain Renin-Angiotensin System in a Model of Fetal Programming
… fetal steroid exposure may lead to elevated mean arterial pressure and decreased autonomic function in young adults. Baroreflex sensitivity for control of heart rate is an important marker of autonomic function and is reduced in conditions associated with hypertension. Indeed, sheep exposed …
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Cardiovascular responses to two minutes of isometric contractions of the finger flexors in healthy women
… included; heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), pulse pressure (PP), stroke volume (SV) and cardiac output (CO).
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Enalaprilat Improves Systemic and Mesenteric Blood Flow During Normotensive Resuscitation from Hemorrhagic Shock in Dogs
… without causing instability in systemic arterial pressures may be helpful for improving trauma patient outcomes. Blocking angiotensin II formation with enalaprilat may be such an intervention. In this study involving resuscitation fiom hemorrhagic shock in dogs, the systemic and …
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Utero-placental blood flow in hypertensive pregnancy and the effect of nifedipine administration
… significant fall in the systolic, diastolic and mean arterial pressure in a mixed group of pregnant hypertensives. A concurrent, significant rise in the pulse rate was seen. The utero-placental blood flow index, which is a measure of utero-placental blood flow, was not significantly reduced …
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Relationships of cognitive appraisal
… performance measures, while heart rate and mean arterial blood pressure were recorded, as were measures of participants' cognitive appraisal of the stressor. Participants were both male and female undergraduates with 28 in the first study and 71 in the second study. Results from both studies …
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Time for Contrast to Pass Through the Myocardium in Patients with Non-Obstructive Coronary Artery Disease // Време за преминаване на контраст през миокарда при пациенти с незначима коронарна болест
… and subsequently indexed to myocardial mass, mean arterial pressure, and heart rate. The analysis demonstrated a normal distribution of iTCPM and a significant correlation between higher iTCPM values and more severe anginal symptoms, assessed by the CCS functional class and the Seattle Angina …
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ΑΥΤΟΜΑΤΟΣ ΔΙΑΤΗΡΗΣΙΣ ΤΗΣ ΑΡΤΗΡΙΑΚΗΣ ΠΙΕΣΕΩΣ ΔΙ' ΕΛΕΓΧΟΜΕΝΗΣ ΑΡΤΗΡΙΑΚΗΣ ΑΦΑΙΜΑΞΕΩΣ ΕΝΤΟΣ ΚΛΕΙΣΤΟΥ ΑΣΚΟΥ ΜΕΓΑΛΗΣ ΕΝΔΟΤΙΚΟΤΗΤΟΣ
IN THIS WORK THE CONTROL OF HIGH BLOOD PRESSURE IS ATTEMPTED AROUND A PRESENT (TARGET) VALVE BY CONNECTING THE ARTERIA SYSTEM WITH A COMPLEX HIGH COPLIANCE BALLOON. THIS BALLOON COMPRISED OF 12 SIMPLE ONES WAS USED IN 5 ANESTHETIZED DOGS FOR IN VIVO EXPERIMENTS. THE PEAK PRESSURE OF THIS BALLOON …
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Resting Microvascular and Autonomic Function in Relation to Age and Sex Hormone Concentrations
… and positively correlated with diastolic blood pressure (DBP) and mean arterial pressure (MAP). Estradiol positively correlated with the low frequency/high frequency ratio of HRV, indicating higher sympathetic activity, and DBP and MAP. Progesterone and testosterone were not significantly …
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The effect of music therapy on intensive care patients
… Physiological parameters of heart rate, blood pressure, and mean arterial pressure were recorded before and after a 30 minute experimental period, as well as the patients' emotional responses. The tests used for testing the difference between physiological parameters taken pre-treatment and …
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Examining the roles of core and local temperature on forearm skin blood flow
… calculated as laser-Doppler flux divided by mean arterial pressure. Tloc manipulations performed during normothermia had significantly greater effects on CVC than during hyperthermia. The decreased modification to SkBF from the Tloc changes during hyperthermia suggests that strong reflexive …
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Controlling for Acute Caffeine Intake in Cardiovascular Reactivity Research
… (average half-life). Thirty nine subjects (mean age: 20.9; 20 Women) completed a repeated measures study involving hand cold pressor (CP) and memory tasks. Caffeinated and decaffeinated coffee were administered. The following CV indices were acquired during baseline, task, and recovery …
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Dietary nitrate supplementation augments nitric oxide synthase-dependent and independent reflex cutaneous vasodilation in healthy humans
… was measured via laser-Doppler flowmetry and mean arterial pressure determined; cutaneous vascular conductance (CVC) was calculated and expressed as %CVCmax. Subjects underwent heat stress pre- and post-nitrate supplementation (3 days of BRJ: 5mM, 0.45g nitrates per day). BRJ increased the …
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Analysis of two methods of isometric muscle contractions during the anti-G straining maneuver
This study investigated the difference in Mean Arterial Pressure (MAP) and Cardiac Output (CO) between two methods of isometric muscle contractions during the Anti-G Straining Maneuver (AGSM). 12 subjects (ages 18 to 38 yrs, height 176.8 +/- 7.4 cm, body mass 78.8 +/- 15.6 kg, percent body fat 14.3 …
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Impact of secondary insults on the outcome of paediatric traumatic brain injury : a retrospective cross sectional study at the Red Cross Children’s Hospital, Cape Town
… the known association between intracranial pressure (ICP) and poor outcome, there are few large paediatric series on the subject, definitions vary, functional outcome is often not assessed, and the best measures to assess ICP for statistical analysis are unknown. We aimed to document the …
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The effect of induced normothermia on the outcomes of severe traumatic brain injury patients at Boston Medical Center
… control group (p = 0.0001). Average intracranial pressure (ICP) and cerebral perfusion pressure (CPP) were not different between the two groups, although mean arterial pressure (MAP) was (p = 0.84; p = 0.08; p = 0.02, respectively). Mortality was lower in the case group by hospital discharge (p = …
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The Assessment of Autonomic Function in Young Adults with an Elevated Risk of Metabolic Syndrome
… rest, where heart rate (HR), beat-by-beat blood pressure (BP), and breathing frequency were recorded continuously and analyzed using the sequence method (SBP change >1.0mmHg, pulse interval change >5.0ms, r>0.80, sequence length >3 beats). Metaboreflex (MMX) responses were evaluated during 8 …
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