Active clinical trials for "Hypertension"

This descriptive, non-interventional study will collect information on the presence of risk factors in newly diagnosed ocular hypertension and open-angle glaucoma patients in Canada.

This study will determine the usefulness of magnetic resonance imaging (MRI) for examining the heart or blood vessels. MRI uses a magnetic field and radio waves to produce images of body tissues and organs. The subject lies on a table that can slide in and out of the scanner (a metal cylinder), wearing earplugs to muffle loud noises that occur during the scanning process. MRI of the heart and blood vessels, called magnetic resonance angiography (MRA), is a developing diagnostic method that permits evaluation of arteries and veins without the use of x-rays or invasive catheterization required by conventional angiography. People 18 years of age and older with known or suspected atherosclerotic disease may be eligible for this study. Participants have blood tests and MRA scanning. The MRA takes about 1.5 to 2 hours. During part of the scan, a contrast agent may be injected into a vein to brighten the images of the heart and blood vessels. Subjects are monitored with an electrocardiogram and are asked to hold their breath for about 5 to 20 seconds intermittently during the procedure. A CT scan may be done to confirm the MRA findings. CT uses x-rays to produce pictures of the heart and blood vessels. The subject lies on a bed during the scan and is given a contrast agent through a catheter inserted into a vein. Subjects are asked to hold their breath intermittently for about 5 to 20 seconds. A medicine called a beta blocker may be administered to slow the heart rate.

This study will describe the factors influencing the physician in face of elevated blood pressure in already treated patients

This is a descriptive study of patients with Lymphangioleiomyomatosis and precapillary pulmonary hypertension.

It is a national, retrospective , observational study in hypertensive patients treated for at least 8 weeks with the fixed dose combination of telmisartan 80 mg and hydrochlorothiazide 25 mg. The primary objective is to assess the control rate (systolic and diastolic blood pressure). Key secondary objectives are to assess the blood pressure reduction after at least 8 weeks of treatment, describe the population treated with this new fixed dose combination

Clinical validation of the Tiba Medical Ambulo 2400 ambulatory blood pressure monitoring system according to the accuracy guidelines of the ISO 80601-2-30 Standard in Adults, Adolescents, and Children.

The objective of this study is to better understand strategies used by African Americans with hypertension in order to control their blood pressure.

To define the underlying genetics of hypertension in an Asian population by studying intermediate phenotypes.

To develop a comprehensive database publication (databook) utilizing available published and unpublished data on the prevalence of hypertension and its treatment and control in selected minority populations in the United States -- Hispanic, Asian and American Indian.

Originally from 1991 to 1991, to test the hypothesis that differences in hypertension prevalence in Nigerian workers were primarily related to differences in socioeconomic status (SES). At renewal in 1996, to determine the importance of weight gain and weight-related factors in blood pressure.