View clinical trials related to Blood Pressure.
Filter by:Compared with White Adults, Non-Hispanic Black Adults are at an elevated risk of developing cardiovascular disease (CVD) and end stage chronic-kidney disease (CKD), two of the leading causes of death in the United States. Inadequate hydration status is associated with risk factors for both CVD and CKD. Prior data show that Black individuals are less likely to be adequately hydrated when compared with their White counterparts. Further, socioeconomic factors have been shown to influence hydration practices. Inadequate hydration influences certain hormones that regulate blood volume and impact blood pressure, but increasing potassium intake may provide some positive effects on normalizing these hormones and blood pressure. Black adults, in particular, are more likely to consume less potassium, have inadequate hydration, and tend to have higher blood pressure. As such, there is a critical need for effective strategies to address racial disparities in hydration and resultant health consequences; as well as establish the role of socioeconomic factors contributing to hydration. Therefore, the investigators are seeking to test the investigators' central hypothesis that both water, and to a greater extent, water with a potassium supplement will improve hydration and cardiovascular health in young Black adults (n = 40, 20 females, 20 males). The investigators will assess measures of blood pressure, arterial stiffness, and biomarkers in the urine and blood samples prior to and following a 14-day hydration intervention of either a) bottled water or b) bottled water with potassium supplementation (2000mg potassium/day).
The goal of this observational study is to learn how accurately blood pressure can be measured using a contactless radar device. The main questions the study aims to answer are: 1. how does blood pressure measured using radar compare with blood pressure using a cuff in patients with known high blood pressure? 2. how does blood pressure measured using radar compare with invasive blood pressure during a coronary angiogram? 3. can the radar blood pressure machine be used to measure blood pressuring during an MRI scan of the heart? 4. can the radar blood pressure machine be used to measure blood pressure during exercise? Participants in this study will have the following tests: Group 1: blood pressure measured with the radar device and a cuff when resting Group 2: blood pressure measured with the radar device and by placing a small tube inside the arteries of the wrist (during a clinical procedure) Group 3: blood pressure measured with the radar device and a cuff during a cardiac MRI scan Group 4: blood pressure measured with the radar device and a cuff during exercise
The investigators aimed to investigate the effects of continuous infusion of norepinephrine before and after general anesthesia induction on the occurrence of post-induction hypotension.
Despite evidence of preventing cardiovascular disease (CVD) risk through lifestyle changes, many patients with hypertension (HTN) do not comply with this and suffer from CVD and other complications. A previous study using a structured lifestyle intervention program has reported a 14% decrease in the 10-year risk of developing CVD at one year among hypertensive and diabetes patients. Low and Middle-Income countries (LMICs) struggle with a shortage of health workers to deliver such interventions. In this context, mobile phones can contribute to bridging this gap by incorporating them into the health system for health intervention delivery. There is a need to develop contextual mHealth intervention adapted to local needs and culture and test its effectiveness in LMIC settings like Nepal. Our previous small-scale pilot mHealth (text messages) study reported promising evidence in reducing blood pressure among hypertensive patients in the intervention arm [adjusted reduction in systolic blood pressure (BP) -6.50 (95% CI, -12.6; -0.33) and diastolic BP -4.60 (95% CI, -8.16; -1.04)], with a greater proportion achieving target BP (70% vs 48% in the control arm, p = 0.006)] and improving treatment compliance (p < 0.001) in Nepal. This finding supports the expansion to a large-scale trial of a structured mHealth intervention to see its long-term effectiveness and sustainability for patients with HTN to improve BP control and reduce CVD risk. Hence, this study aims to assess the effectiveness of a behavioural intervention through mHealth (telephone/mobile phone calls and text messages) informed by the RE-AIM framework for improving blood pressure control among patients with hypertension in a hospital (Manamohan Cardiothoracic Vascular and Transplant Center) of Kathmandu, Nepal.
Automated blood pressure cuff measurements taken by an "oscillometric device" is the standard in numerous medical settings today. Studies show that oscillometric devices using algorithms are more accurate and consistent than devices using other non-invasive measuring techniques, especially in critical cases. SureBP algorithm estimates BP during cuff inflation; the second, StepBP algorithm does so during deflation. The purpose of this study is to test the algorithms contained in the ModPG3 on Neonate and Infants subjects to determine if they meet the requirements of ISO 81060-2:2018/Amd 1:2020 Non-invasive sphygmomanometers - Part 2: Clinical investigation of intermittent automated measurement type
The VERDICT-2 verification study will examine the accuracy of the Cloud DX Vitaliti Continuous Vital Signs Monitor (Model: CVSM-1A) in an ambulatory context with healthy participants. The objective is to determine the accuracy of continuous non-invasive vital signs metrics including respiration, pulse rate, oxyhemoglobin saturation (SpO2), core temperature, heart rate, and cNIBP against standard comparator devices guided by consensus standards.
The goal of this clinical trial is to determine the effect of acute consumption of a ketone monoester supplement in healthy male adults. The main questions it aims to answer are: - To determine if acute consumption of a ketone monoester supplement modulates diurnal (measured in lab) and nocturnal blood pressure (assessed by ambulatory blood pressure monitoring; ABPM) compared to a taste-matched placebo. The investigators hypothesize that a ketone monoester supplement will acutely decrease systolic and diastolic blood pressure compared to the placebo. The same results are expected for diurnal and nocturnal blood pressure. - To determine if acute consumption of a ketone monoester supplement improves glucose control measured with continuous glucose monitoring (CGM) following a standardized meal consumed 90 minutes after ingestion of the ketone supplement. The investigators hypothesize that a ketone monoester supplement, consumed 90 minutes before a meal, will decrease the 2-hour postprandial glucose incremental area under the curve (iAUC) and peak glucose compared to a placebo. - To assess IL-10's ability to inhibit proinflammatory cytokine production (TNF- α and IL-1β) in LPS-stimulated whole blood cultures following the ingestion of β-OHB and placebo. The investigators hypothesize that β-OHB will augment the ability of IL-10 to inhibit TNF-α and IL-1β production compared to placebo. Using a double-blind placebo-controlled randomized crossover study design, 15 adults will participate in two experimental conditions. Participants will be recruited using a local recruitment database (Nabû), during presentations in community organizations, with posters at the University of Sherbrooke, and from word of mouth. Following screening, eligible participants will be invited for one baseline and two experimental conditions at the Research Centre on Aging (CdRV). During the baseline visit, the following assessments and tests will be conducted: - resting heart rate (HR) and blood pressure; - anthropometry and body composition; - medical history and questionnaires on physical activity levels, dietary habits and anxiety symptoms; - explanation of the dietary and physical activity logs; - installation of accelerometers to control physical activity levels and sedentary behaviors over 10 days and CGM to assess glucose control over the subsequent 10 consecutive days. During the week following the baseline condition, participants will be invited to the laboratory for their first experimental condition (duration = 240 minutes). Participants will come to the lab in a fasted state (at least 12-hour overnight) to the lab at 8:00 am where following assessments and tests will be conducted: - resting heart rate (HR) and blood pressure; - ketone supplement or placebo consumption; - blood samples and cold pressor test; - standardized breakfast; - galvanic skin response; - visual analog scales assessing gastrointestinal discomfort, hunger and fullness; - installation of ABPM and explanation of the dietary and physical activity logs. Forty-eight hours later, participants will complete the same experimental condition with the alternate supplement (ketone or placebo) according to their randomization.
This study is a prospective study targeting at least 20 obese and super-obese patients admitted to Labor & Delivery (L&D) for delivery at UNC Medical Center. Patients with clinical indicated radial A-lines either planned or already in-situ will be offered participation. The study will evaluate the accuracy of noninvasive blood pressure measurements with the ANNE One system to blood pressure readings with the radial A-line.
This clinical trial aims to learn whether blood pressure (BP) guided by individualized cerebral autoregulation (CA) is safe and provides a better prognosis than a fixed target in patients with ischemic stroke after endovascular therapy. The BP of participants will be managed at least 48 hours after revascularization. Researchers will compare the CA-guided BP group with the fixed target BP group to mainly see if individualized BP could help more patients to have their neurological function improved at seven days.
In animal models of thermoregulation (how the body regulates heat), heat-sensitive nerve cells that help regulate body temperature have been identified throughout the body (e.g. in muscles, viscera, and blood vessels, among others); however, in human thermoregulation models, only two locations are generally recognized: the core (brain) and the skin. The limited number of recognized locations in humans are likely due to the difficulty in testing these locations in humans, as these locations are typically identified in animals by sedating them, surgically opening them up, stimulating the area of interest with a hot or cold probe, and then measure thermoregulatory responses. Based on the literature, the researchers believe that by having participants run at the same energy expenditure but at three different inclines (uphill, downhill and flat) on a treadmill, the researchers can independently alter muscle temperature, while keeping core and skin temperature the same. Additionally, recent studies have suggested that temperature has a greater role at regulating blood flow through muscle tissue than previously recognized. Because of this, the researchers aim to have a second arm of the study to see whether these differences in muscle temperature result in differences in post-exercise blood flow to the muscle. Finally, downhill running is often used to study exercise-induced muscle damage, due to the greater breaking forces compared to flat land running. Because of this, a third study aim will be to examine the association between fitness level, body morphology and sex on exercise-induced muscle damage.