View clinical trials related to Hypotension.
Filter by:This study aims to identify women at risk of low blood pressure (hypotension) after the usual cesarean anesthetic - a spinal anesthetic. Hypotension may be caused by dehydration. We believe we can predict who will get hypotension by using two anesthesia monitors together with a passive leg raise (PLR) (legs elevated after a period spent reclining). The PLR will cause a shift of blood from the legs to the heart, and the monitors will detect the heart's response to tell if a subject is dehydrated. We want to see if these dehydration tests can also predict hypotension after a spinal anesthetic.
In hypotensive septic patients with controlled source, an hemodynamic management protocol including hypertonic saline (HS)and terlipressin improves MOD (Multiple Organ Dysfunction) Score by at least 3 points compared to the use of physiologic saline and norepinephrine. The appropriate design for this trial would be factorial. For the time being, will consider de intervention as a whole unit for this pilot study. In the future an appropriately sized factorial multicentric study shall be necessary. Other goals of the pilot study: 1. HS restores preload parameters adequately 2. HS associated with terlipressin normalizes blood pressure in septic shock 3. HS associated with terlipressin maintains plasma sodium levels 130-155mEq/L 4. There is an inverse relationship between plasma sodium and procalcitonin levels 5. HS increases plasma levels of vasopressin (AVP) 6. HS rises levels of cortisol but not of adrenocorticotropic hormone (ACTH)
To determine if proprietary software that uses pulse-wave analysis to interpret the output of a conventional pulse-oximeter, can predict the onset of circulatory stress, before changes in blood pressure and pulse occur, in patients undergoing outpatient hemodialysis.
The purpose of this study is to assess if abdominal binders that use pull strings to adjust compression (non-elastic) are more effective than standard elastic abdominal binders in attenuating neurogenic orthostatic hypotension.
1. Aim: The aim of the clinical trial is to study the accuracy of the TensorTip device compared with registered (FDA-approved) invasive and non-invasive devices. 2. Hypothesis: Human physiological biomarkers may be measured from the color distribution of the internal or external (skin) tissue. The technology of the TensorTip finger-mounted device is based on the color distribution of the peripheral blood tissue, which enables the measurement of certain biomarkers and vital signs under consideration.
The purpose of this study is to compare the accuracy of the Sotera ViSi, an investigational device, to auscultation (measurement with a cuff) in determining systolic and diastolic blood pressure (BP) in adult subjects.
This is a study to evaluate the effects of an investigational drug, Droxidopa, in participants with neurogenic orthostatic hypotension (NOH), associated with Parkinson's disease. Droxidopa is being studied to determine the effects on blood pressure changes upon standing up (orthostatic challenge). Symptoms and activity measurements, including patient reported falls, will be evaluated to determine the effectiveness of the study drug. Symptoms of NOH may include any of the following: - Dizziness, light-headedness, feeling faint or feeling like you may blackout - Problems with vision (blurring, seeing spots, tunnel vision, etc.) - Weakness - Fatigue - Trouble concentrating - Head & neck discomfort (the coat hanger syndrome) - Difficulty standing for a short time or a long time - Trouble walking for a short time or a long time The study duration is a maximum of approximately 14 weeks including up to 2 weeks for screening, up to 2 weeks for proper dose finding, followed by an 8 week treatment period and a follow-up visit after 2 weeks. A sufficient number of patients will be screened to allow approximately 211 randomized patients. An extension study is also available to continue treatment if determined appropriate by the study doctor. This Study is NCT01132326 sponsored by Chelsea Therapeutics and is enrolling by invitation only.
Currently, decisions regarding volume management for dialysis sessions in the ICU are made in large part on the nephrologists'/intensivists' overall gestalt. This gestalt is based upon a combination of commonly used measures of circulatory function, the physical exam, fluid balance, estimates of dialysis dry weight, and monitoring changes in relative blood volume status using devices such as the Crit-Line™ III, and central venous pressures. However, these tools perform poorly in predicting the circulatory system's overall response to dialysis. Consequently, episodes of dangerously low blood pressure are still frequently encountered. Better techniques to predict the circulatory system's response to dialysis are much needed. The intent of this study is to test newer metrics of circulatory system function for their ability to predict low blood pressure episodes during dialysis. This is important because it may enable the design of newer treatment strategies created to prevent low blood pressure episodes during dialysis and improve patient outcomes. The investigators overall hypothesis is that newer measures of vascular volume and dynamic indices of fluid responsiveness, previously found to better reflect cardiac preload state than currently used parameters, will better predict low blood pressure episodes during dialysis than current methods.
Hypotension after spinal anesthesia for Cesarean section occurs in up to 90% usually under five minutes after local anesthetics administration. These changes are poorly depicted by oscillometric measurements. The investigators hypothesized, that a continuous noninvasive device detects more hypotensive periods with lower blood pressures.
One purpose of this study is to determine if taking droxidopa after eating will have an effect on how the body processes (absorbs and eliminates) the drug in healthy elderly subjects. Another purpose of this study is to see how the body processes (absorbs and eliminates) one 300mg capsule compared to three 100mg capsules. This study will also evaluate how well the body processes (absorbs and eliminates) and tolerates droxidopa when a 300 mg capsule is given 3 times a day for a total dose of 900 mg over the course of one day. Droxidopa is used to treat low blood pressure upon standing in patients with diseases of the nervous system, to prevent low blood pressure in patients with kidney disease during hemodialysis (removal of waste products of the blood), and to treat frozen gait (walking, stepping or running) and dizziness upon standing in patients with Parkinson's disease.