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In this study the investigators propose to assess the hemodynamic response to the ingestion of 16 fl oz of water. The investigators will test the hypothesis that water ingestion will increase the systemic vascular resistance.
In this study we propose to assess the hemodynamic response to the ingestion of 16 fl oz of water. We will test the hypothesis that water ingestion will increase the systemic vascular resistance. This study will occur in patients status post cardiac transplantation during their clinical right heart catheterizations. Invasive hemodynamics including cardiac outputs and plasma norepinephrine levels will be measured before and 30 min after the water ingestion.
Control: Uncontrolled, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Active, not recruiting
Published on BioPortfolio: 2014-08-27T03:34:14-0400
The study includes Caucasian patients with diagnosis of normal tension glaucoma and age- and sex-matched healthy individuals. Measurements of optic nerve head blood flow will be performed ...
The purposes are 1. to measure the effect of dialysis with glucose on blood pressure, pulse rate, plasma concentration of glucose, plasma concentrations of glucagon, growth hormone...
High blood pressure is very common among elderly Canadians. Clinical trials show clear benefit from lowering blood pressure in hypertensive elderly patients. These trials also demonstrate ...
The study will evaluate whether the blood concentrations of eletriptan administered using two test formulations of oral disintegrating tablets are comparable to those observed with the sta...
The purposes are 1. to measure the effect of dialysis with glucose in dialysis water on blood pressure, pulse rate, plasma concentration of glucose, plasma concentrations og insulin, gluca...
In recent years great emphasis has been placed on the role of central aortic blood pressure as measured non invasively using pulse wave analysis in pathophysiology of cardiovascular diseases and clini...
The pressure study was carried out to evaluate the hypotheses that ambulatory blood pressure (ABP) is superior to clinic blood pressure for ischemic stroke and that ABP is important to refine risk str...
To determine the added value of (i) 24-h ambulatory blood pressure relative to office blood pressure and (ii) night-time ambulatory blood pressure relative to daytime ambulatory blood pressure for 10-...
During sleep there is reduction of blood pressure (BP) caused by a decrease of the sympathetic nervous tone. This nocturnal "dipping" phenomenon, assessable with ambulatory blood pressure monitoring (...
The clinical significance of measuring central arterial blood pressure has been recently discussed. Although the postprandial reduction in blood pressure is well known, postprandial changes in central...
Method in which repeated blood pressure readings are made while the patient undergoes normal daily activities. It allows quantitative analysis of the high blood pressure load over time, can help distinguish between types of HYPERTENSION, and can assess the effectiveness of antihypertensive therapy.
Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.
A response by the BARORECEPTORS to increased BLOOD PRESSURE. Increased pressure stretches BLOOD VESSELS which activates the baroreceptors in the vessel walls. The net response of the CENTRAL NERVOUS SYSTEM is a reduction of central sympathetic outflow. This reduces blood pressure both by decreasing peripheral VASCULAR RESISTANCE and by lowering CARDIAC OUTPUT. Because the baroreceptors are tonically active, the baroreflex can compensate rapidly for both increases and decreases in blood pressure.
Antidiuretic hormones released by the NEUROHYPOPHYSIS of all vertebrates (structure varies with species) to regulate water balance and OSMOLARITY. In general, vasopressin is a nonapeptide consisting of a six-amino-acid ring with a cysteine 1 to cysteine 6 disulfide bridge or an octapeptide containing a CYSTINE. All mammals have arginine vasopressin except the pig with a lysine at position 8. Vasopressin, a vasoconstrictor, acts on the KIDNEY COLLECTING DUCTS to increase water reabsorption, increase blood volume and blood pressure.
PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...
Organ transplantation is the moving of an organ from one body to another or from a donor site to another location on the patient's own body, for the purpose of replacing the recipient's damaged or absent organ. The emerging field of regenerative ...
Cardiovascular disease (CVD)
Acute Coronary Syndromes (ACS) Blood Cardiovascular Dialysis Hypertension Stent Stroke Vascular Cardiovascular disease (CVD) includes all the diseases of the heart and circulation including coronary heart disease (angina...