View clinical trials related to Essential Hypertension.
Filter by:The prevalence of hypertension is greater in older women than men, while the blood pressure (BP) control rate is lower in older women in US. Uncontrolled hypertension is a major risk factor for cardiovascular morbidity/mortality. Despite standard therapy and adherence to optimal drug regimens, >50% of older hypertensive women still have inadequate BP control, and the control rate is further reduced with more aggressive BP targets recommended recently by the new Hypertension Guidelines. Thus, the effectiveness of drug treatment alone in the control of hypertension among older women is limited; hence, non-pharmacological approaches are also needed to help reduce BP in older hypertensive women. One adjuvant, non-pharmacological approach that offers promise in lowering BP is "heat therapy". Indeed, repeated whole-body heat exposure decreases BP in healthy humans. Whether this is also true after regional limb heating in hypertensive patients is unknown. The objectives of this research are to investigate the BP lowering effect of home-based lower leg heat therapy in older women with hypertension, and to examine the impact of this therapeutic modality on neural-vascular health in these patients. Aim 1 will test the hypothesis that chronic lower leg heat therapy combined with an antihypertensive drug is superior to drug treatment alone in lowering BP in older hypertensive women. We will randomly assign older hypertensive women to either an intervention group or a control group. Patients in the intervention group will perform 8 weeks of lower leg heat therapy via water immersion up to the knee in a circulated bath (water temperature 42°C, 4 times/week, 45 min/session), whereas patients in the control group will immerse their legs in a thermoneutral water bath (33°C) at the same frequency and duration. All patients will also receive a fixed dose of chlorthalidone (a diuretic, 25 mg orally daily). We will compare ambulatory BP, the BP control rate, and patient adherence and acceptability to treatment between the groups. Aim 2 will test the hypothesis that chronic lower leg heat therapy will improve nitric oxide bioavailability which can decrease sympathetic vasoconstriction and improve vascular function in older hypertensive women. We will use state-of-the-art techniques of microneurography, Doppler ultrasound, applanation tonometry, and cutaneous microdialysis to assess neural control, vasodilator function, and interstitial metabolites (i.e. nitrate and nitrite) indicative of basal nitric oxide bioavailability in all patients enrolled in Aim 1 before and after 8 weeks of heat therapy. Information obtained from this research project will guide evidence-based clinical practice. It is anticipated that our study may lead to revision of hypertension guidelines to incorporate home-based heat therapy as adjuvant to antihypertensive drug(s) for older women, as well as other patient populations.
Home blood pressure measurement has been recommended to use in the diagnosis of hypertension. The investigators have developed diagnostic algorithm of hypertension by using 24-hour and home blood pressure measurement. However, the diagnostic agreement between home blood pressure measurement and 24-hour ambulatory blood pressure measurement is about 70 - 85%. The discrepancy of diagnosis between home blood pressure measurement and 24-hour ambulatory blood pressure is one of the barriers to introduce home blood pressure measurement in the diagnosis of hypertension. To solve the discrepancy, identifying the characteristic patients showing discrepancy of hypertension diagnosis between home blood pressure measurement and 24-hour ambulatory blood pressure measurement is needed. The purpose of the present study are (1) to validate the diagnostic algorithm of hypertension by using 24-hour ambulatory blood pressure and home blood pressure measurement the investigators have developed, and (2) to identifying the characteristics of patients showing discrepancy of diagnosis between 24-hour ambulatory blood pressure and home blood pressure measurement, and (3) lastly to improve the diagnostic algorithm of hypertension by using home blood pressure measurement.
The purpose of this study is: To evaluate the effects of NEBILET®(Nebivolol), used as monotherapy or in combination with other antihypertensive agents, in the control of BP and in the metabolic profile of patients with essential hypertension (with or without co-morbidities) after 12 weeks and 24 weeks.
To determine if there is a relationship between coronary flow reserve (CFR) and platelet/plasma BH2 and BH4 levels in patients with high cardiovascular risk .
Previous studies have explored the correlation and impact of astrological events in relation of diseases, health concerns and relationship between birth chart and disease risk. Cardiovascular conditions, sleep and fertility were found significantly associated with moon phase. However, to best of our knowledge no study has documented the impact of astrological intervention in disease management. This is a randomised, multi-center, double blind placebo controlled clinical trial with two parallel arms. This trial aims to evaluate the effectiveness of Vedic medical astrological intervention for patients with mild to moderate hypertension,with respect to decreasing their blood pressure and improving their quality of life.
Sympathetic nervous activity plays an important role in the development of hypertension and studies have shown that the pannexin-1 channel is involved in the signalling of the sympathetic activity to the vascular bed. The main project aim is to investigate the effects of 10 weeks of high intensity training on the effect of the sympathetic nervous activity on vascular function in individuals with essential hypertension. A secondary aim is to assess the role of essential hypertension and physical activity on vascular endothelial function,
SPH3127 tablet is a of renin inhibitor. It is expected to be a new drug for essential hypertension. This is a phase IIa trial which designed to evaluate its efficacy and safety on treating mild-moderate essential hypertension patients.
Flavanols are natural substances who are frequently found in our nutrition. A lot of research has already been executed in the past to investigate what effects this flavanols could have in the human population. Based on these examinations, the investigators think and suggest that flavanols can have positive effects on the vascularly system, more specifically on the peripheral and cerebral blood vessels. The effects are only observed in a healthy populations, meanwhile patient populations like diabetes patients could really benefit from this. This is why the investigators will execute this study.
The registry study aims to determine serial biomarkers to prognosis of Essential Hypertension
The recent hypertension clinical practice guidelines published by American College of Cardiology (ACC) and American Heart Association (AHA) reduced the target BP to 130/80 mmHg, indicating the needs for more aggressive efforts in hypertension treatment. However, studies in Koreans must be preceded before applying such new overseas guidelines; thus, this study has been designed to establish clinical materials reflecting treatment setting in Korea. In this study, patients with uncontrolled hypertension whose antihypertensive regimens are changed to ARB-based therapy (ARB monotherapy or ARB-containing combination therapy) will be followed to assess the treatment trend, treatment effect, and risk of cardiovascular disease.