View clinical trials related to Blood Pressure.
Filter by:High blood pressure (HBP) is a major modifiable cardiovascular risk factor which prevalence is gradually increasing. Reducing blood pressure (BP) significantly decreases cardiovascular morbi-mortality. Nevertheless, BP control remains insufficient: only 51% of French patients using antihypertensive drugs achieve the BP control targets. HBP is mostly diagnosed and managed in primary care. Nevertheless, office BP measurements are unreliable for BP control and poorer predict target organ damage. Ambulatory BP measurements are recommended for HBP diagnosis and follow-up. 24-hour ambulatory blood pressure monitoring (ABPM) is the most cost-effective strategy. Its superiority has been demonstrated for HBP diagnosis and cardiovascular prognosis. In France, ABPM is poorly available and little studied in primary care. Therefore, the investigators conducted a regional prospective study to analyze the feasibility and benefits of ABPM among primary care hypertensive patients in daily practice.
There are data supporting a possible increase in the prevalence of High Blood Pressure (HBP) in pediatric patients with Sleep Disorder Breathing (SDB). Adeno-tonsillectomy has proven to be an effective treatment in the correction of nocturnal respiratory events in the majority of patients. Our objective is to determine the presence of HBP in pediatric patients with SDB and the impact of adenotonsillar surgery on its correction. Methodology: 286 children (4-18 years old) will be included consecutively referred for suspected SDB. Variables: a) Clinical history; b) Anthropometric variables: weight, height, body mass index, neck, hip and waist perimeter c) Chervin questionnaire d) polysomnography (PSG) for the SDB assessment and e) for the HBP evaluation, ambulatory blood pressure measurement (ABPM) and pulse transit time (PTT) will be performed during 24h. In control group (not SDB) and patients with indication for medical treatment, the same tests will be repeated six months after the baseline visit. In patients with surgery indication, ABPM and PTT will be performed just before the surgical treatment and ABPM, PTT and PSG six months after the intervention. In a subgroup of patients, will also assess the presence of subclinical organic damage produced by HBP: blood markers (creatinine / glomerular filtration), urine (albuminuria / proteinuria), electrocardiogram and echocardiography (left ventricle hypertrophy).
This four-arm randomized controlled trial was designed to study the effects of magnesium supplements (total daily dose: 450 mg elemental magnesium) on vascular stiffness in healthy overweight and slightly obese men and women. In addition, the effects of magnesium supplements on blood pressure and gut microbiota will be evaluated. Three groups will receive magnesium supplements (magnesium oxide, magnesium citrate or magnesium sulphate) and one group will receive a placebo.
24 hour ambulatory blood pressure (ABP) monitoring should be the first choice for diagnosis and treatment of hypertension according to European Societyof Hypertension (ESH) and the European Society of Cardiology (ESC) guideline on ambulatory blood pressure monitoring. Finally, we should promote the clinical application of 24 hour ambulatory blood pressure monitoring to greatly improve the management level of hypertension in China and effectively reduce the risk caused by hypertension in the population. Information of hypertensive patients with ambulatory blood pressure monitoring was prospectively registered nationwide,and then to investigate whether there was difference in cardiovascular prognosis according to the control of ABP.
A multicenter prospective registry planned to recruit more than 100 000 patients 50 years old and older was carried out in China. This primary purpose of this study was to evaluate the association of synchronous four-limb blood pressure and pulse wave velocity with cardiovascular events. The secondary purpose was to evaluate the incidence rate,prevalence rate, value of diagnosis for peripheral arterial occlusive disease, and to follow up the effects of revascularization on cardiovascular events.
The study objective of this project is to examine the mechanisms of the venous distension reflex (VDR) in humans. We hypothesize that COX blockade with ketorolac tromethamine, an intravenous NSAID, will attenuate the muscle sympathetic nerve activity (MSNA) response to limb venous distension. To gain further insight into whether the COX byproducts directly stimulate chemically-sensitive afferents, or enable venodilation and indirectly evoke afferent stimulation, we will measure vein size using 3T MRI during venous distention with and without ketorolac infusions.
This research is being done to find out whether distension of veins in legs will cause a rise in blood pressure (orthostatic hypertension).
This study uses an experimental design to conduct a double-blind, randomized, crossover study where participants receive both diesel exhaust and a mental stress test in a controlled setting. My hypothesis is that the synergistic effect of stress and air pollution will result in higher levels of stress and inflammation (measured via biological markers) as well as poorer cardiovascular disease related outcomes compared to the independent effect of each exposure separately.
The JADE wRAP™, a wrist worn cuff to measure blood pressure and its supporting software platform is currently at the final alpha prototype stage of development and is not intended for sale. There are minimal risks with using the JADE wRAP™ device; however, the likelihood of these risks has been reduced through design limitations on electrical power delivered to the device and of the pressure delivered to the cuff portion. Patients should experience little to no discomfort from the inflation of the JADE wRAP™ cuff.
In this research study we want to learn more about using non-invasive tools as a way to predict whether or not a child under general anesthesia will require and respond to fluid administration. It is important for an anesthesiologist to know if a child would respond to fluid administration so that they can provide the optimal intervention for low blood pressure and avoid unnecessary treatment.