Search Results
Results 601 - 650 of 1121
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Koenen S V - - 1998
OBJECTIVE: To determine whether measured differences between standard mercury sphygmomanometry and the SpaceLabs 90207 ambulatory blood pressure monitor in pregnant women remain constant during 24 h measurements. STUDY DESIGN: Repeated comparisons between standard mercury sphygmomanometry and Spacelabs 90207 were performed at nine predetermined time points during 24 h ambulatory blood ...
Kastarinen M J - - 1998
OBJECTIVE: To assess the trends in blood pressure levels and hypertension control in Finland from 1982 to 1997. DESIGN: Four independent cross-sectional population surveys conducted in 1982, 1987, 1992 and 1997. SETTING: From 1982 to 1997, the provinces of North Karelia and Kuopio in eastern Finland and the region of ...
Dressler W W - - 1998
OBJECTIVE: To examine the interaction between gender and John Henryism in relationship to arterial blood pressure in an African American community in the Southern United States. It was hypothesized that, within this specific social and cultural context, John Henryism would be associated with blood pressure differently for men and women. ...
Klungel O H - - 1998
OBJECTIVE: To estimate the level of undertreatment of hypertension in a population-based study by taking into account the co-existence of additional cardiovascular risk factors in untreated hypertensives, uncontrolled blood pressure among pharmacologically treated hypertensives and within-person variability in blood pressure and total cholesterol. DESIGN: Cross-sectional. SETTING: Two population-based surveys on ...
Taskin O - - 1998
This prospective study was designed to investigate the effects of hormone replacement therapy (HRT) on systolic and diastolic functions. Twenty-eight non-smoking, healthy postmenopausal women who had not received any kind of HRT for at least three years within the onset of menopause were included in the study. All patients received ...
Staessen J A - - 1998
Menopause is a normal aging phenomenon in women and consists of the gradual transition from the reproductive to the non-reproductive phase of life. The median age at the menopause is currently around 50 years. As a result of the increasing life expectancy in the first and second worlds, many women ...
Walker S P - - 1998
Current guidelines recommend using Korotkoff phase IV for measuring diastolic blood pressure in pregnant women. However, phase IV does not approximate "true" blood pressure as closely as phase V, is more difficult to detect, and has limited reproducibility. Many practitioners use phase V despite the guidelines. Universal adoption of phase ...
Dvorak R V - - 1998
The sympathetic nervous system participates in the regulation of carbohydrate, lipid, and energy metabolism, and has been implicated in the pathogenesis of hypertension and obesity. Increased sympathetic nervous system activity with age may alter disease risk and contribute to the development of certain chronic diseases. Thus, we examined possible determinants ...
Sjøl A - - 1998
BACKGROUND: Hypertension is an essential risk factor for development of cardiovascular diseases. Prospective studies show a reduction in risk of myocardial infarction with reduction of blood pressure. In Denmark there was a decrease in ischaemic heart disease mortality during the period (1968-1992) with around 34% in 30-65 year old men ...
Tardy C H - - 1998
To explain why speech produces cardiovascular reactivity, an experiment utilized speech tasks varying in self-disclosure and cognitive preparation and measured the blood pressure and pulse rate of African-American and Caucasian, men and women subjects. One hundred and fifty-six college students with a median age of 21 volunteered to participate. The ...
Seux M L - - 1998
OBJECTIVE: To assess cognitive functions and their correlates for a dementia-free cohort of old patients with isolated systolic hypertension. DESIGN: Cross-sectional data from the randomization period of the European Trial in Elderly with Systolic Hypertension (Syst-Eur Vascular Dementia Project). SETTING: Sixteen European countries and Israel. PARTICIPANTS: We studied 2252 patients ...
Beljic T - - 1998
OBJECTIVES: To evaluate the effect of hormone replacement therapy (HRT) on left ventricular diastolic function in a group of hypertensive and normotensive postmenopausal women. METHODS: Left ventricular diastolic function at rest was evaluated by M-mode, two-dimensional and Doppler echocardiography in 19 postmenopausal women with normal blood pressure and 11 postmenopausal ...
Leung K Y - - 1998
A randomised controlled trial was performed at the Queen Elizabeth Hospital to compare the effects and acceptance of routine in-patient versus out-patient management of diastolic blood pressure between 90 and 100 mm Hg in pregnant women. There were no significant differences in the establishment of the diagnosis of hypertension, development ...
Yin K H - - 1998
OBJECTIVE: To determine the haemostatic status in preeclampsia and to investigate the effects of short-term use of anti-hypertensive drugs, methyldopa and isradipine. METHODS: Thirty preeclamptic (PE) women admitted to the hospital for observation and treatment were randomized to receive either methyldopa or isradipine for 2 weeks. Their blood pressure were ...
Gratacós E - - 1998
OBJECTIVES: We sought to evaluate the circulating levels of lipid peroxides and vitamin E and the placental levels of lipid peroxides in pregnant women with different types of hypertension. STUDY DESIGN: Lipid peroxides were measured in serum and placental tissue by the thiobarbituric acid method and high-pressure liquid chromatography, and ...
Naef R W RW - - 1998
OBJECTIVE: To determine whether automated measurement of blood pressure and pulse in a home setting can be easily accomplished by pregnant women with chronic hypertension. STUDY DESIGN: In this prospective investigation, seven women with chronic hypertension complicating pregnancy recorded their blood pressure at home twice a day. These data were ...
Duggan P M - - 1998
A voluntary, anonymous 10-point multiple choice questionnaire was used to assess variability in methods used to measure blood pressure in pregnancy in 5 South Australian teaching hospitals. Medical and midwifery staff working in maternity units attached to teaching hospitals in South Australia were asked to complete a survey of their ...
Minami J - - 1998
OBJECTIVE: To analyze various factors influencing season variations in blood pressure under ordinary circumstances. METHODS: We examined home and office blood pressures in 315 outpatients with essential hypertension. The majority (88%) were being administered antihypertensived drugs. Their office and home blood pressures were recorded in 1993. The patients were 156 ...
Ramos J G - - 1998
Urinary calcium excretion has been reported to be diminished in preeclampsia. The objective of the present study was to determine urinary calcium excretion in pregnant patients with chronic arterial hypertension (CAH) and preeclampsia (PE), and in normotensive patients (N). Forty-four pregnant patients (gestational age, 20-42 weeks; 18 CAH, 17 PE, ...
Williams D E - - 1998
A cross sectional survey to determine the mean systolic and diastolic blood pressure, prevalence of hypertension, and possible risk factors in two villages, Kychum and Njala Komboya, in Sierra Leone was carried out. A total of 463 subjects were investigated. Hypertension was defined according to WHO criteria, i.e. a systolic ...
De Henauw S - - 1998
OBJECTIVES: To discuss changes during the past decades in the prevalence and in the patterns of detection, treatment and control of arterial hypertension in the general Belgian population aged 25-64 years. DESIGN: Data from two cross-sectional cardiovascular disease risk factor surveys of the general population aged 25-64 years during the ...
Burke V - - 1998
BACKGROUND: Sex both of parent and of child might influence associations between parental hypertension and blood pressure in offspring. OBJECTIVE: To examine these associations. DESIGN: A cohort of Australians was surveyed 3-yearly from age 9 to 18 years. SETTING: A community-based sample. PARTICIPANTS: When they were aged 18 years, 630 ...
Markovic N - - 1998
STUDY OBJECTIVE: Among urban Nigerian civil servants, higher socioeconomic status is related to increased blood pressure. In the United States, the relation between increased blood pressure and low socioeconomic status or low level of education has been found to be potentiated by high effort active coping (John Henryism) among African-Americans. ...
Singh R B - - 1998
To measure the prevalence of hypertension and age-specific blood pressure in urban populations from five Indian cities. Cross-sectional surveys were conducted in six-twenty urban streets in different cities from five different corners of India, using similar methods of sample selection and criteria. There were 3212 randomly selected women from Moradabad ...
Rywik S L - - 1998
PURPOSE: The objectives of this manuscript are to assess differences in blood pressure levels and in hypertension prevalence, awareness, treatment, and control for selected rural and urban areas in the U.S. and Poland, where ischemic heart disease mortality trends are different. METHODS: Included are white persons aged 45-64 selected in ...
Benedetto C - - 1998
OBJECTIVE: To investigate whether a chronobiological analysis applied to automated 24-hour blood pressure monitoring in early pregnancy provides objective parameters enabling detection of single patients at risk of pregnancy-induced hypertension or preeclampsia. METHODS: 24-hour automatic blood pressure monitoring was performed at 8-16 and 20-25 gestational weeks in 104 women at ...
Hayward C S - - 1997
OBJECTIVES: This study investigated the effect of age and gender on central arterial hemodynamic variables derived from noninvasive tonometric carotid pressure waveforms. BACKGROUND: Women have a greater age-related increase in left ventricular (LV) mass than do men and are more likely to experience symptomatic heart failure after infarction despite their ...
Wang JG - - 1997
OBJECTIVES: Syst-China is the ongoing placebo-controlled double-blind outcome trial in older (aged 60 years or more) Chinese patients with isolated systolic hypertension (systolic blood pressure 160-219 mmHg and diastolic blood pressure < 95 mmHg). This article is based on the data accumulated until 31 August 1992. Its purpose is to ...
Sudhir K - - 1997
Estrogens are reported to provide protection against the development of cardiovascular disease in women, but the mechanisms underlying these effects are not well defined. We hypothesized that estrogen might reduce neural cardiovascular tone. We therefore studied responses to exogenous norepinephrine and norepinephrine spillover in 12 perimenopausal women randomized to 8 ...
Hermida R C - - 1997
The use of ambulatory blood pressure monitoring has provided a method of blood pressure assessment that may compensate for some of the limitations of isolated measurements. Here we aim to examine prospectively the effectiveness of the commonly used 24-hour mean as a potential screening test for the identification of gestational ...
Cardoso F - - 1997
OBJECTIVE: To evaluate in normotensive women the influence of low-dose oral contraceptives (OC, monophasic formulations containing 30 microg of estrogen) on 24-h blood pressure. METHODS: We evaluated prospectively in 15 normotensive healthy women (three smokers) the influence of OC on 24-h ambulatory blood pressure monitoring (ABPM). ABPM was performed (SpaceLabs ...
Ekholm E M - - 1997
OBJECTIVE: Our purpose was to study whether cardiovascular changes in pregnancy-induced hypertension are associated with the increase in sympathetic control of hemodynamics and change in sympathovagal balance. STUDY DESIGN: Fourteen women with pregnancy-induced hypertension and 16 women with uncomplicated pregnancies of similar duration were studied. Electrocardiographic signals and arterial blood ...
Marques-Vidal P - - 1997
OBJECTIVE: To assess the prevalence, awareness, treatment and control of hypertension for men and women living in three French regions. DESIGN: A cross-sectional population survey. SETTING: Subjects in the World Health Organization Monitoring Trends and Determinants in Cardiovascular Disease population surveys of Bas-Rhin, the urban community of Lille and Haute-Garonne, ...
Thomas S P - - 1997
The relationship of anger suppression to blood pressure was examined in a university sample of 210 female staff, faculty, and students 18 to 71 years of age. Most were White and in good or excellent health. The study replicated that of Goldstein et al. (1988) using their method of assessing ...
Sibai B M - - 1997
OBJECTIVE: Our goal was to identify risk factors for the development of preeclampsia in nulliparous women enrolled in a multicenter trial comparing calcium supplementation to a placebo. STUDY DESIGN: A total of 4589 women from five centers was studied. Analysis of risk factors for preeclampsia was performed in 4314 who ...
Murphy N J - - 1997
OBJECTIVE: Determine the prevalence of hypertension in Alaska Natives and evaluate risk factors. DESIGN: Population-based univariate and multivariate analysis of blood pressure in 1124 Alaska Natives over 20 years of age. RESULTS: The sample had mean: age 45 years, body mass index 27, systolic pressure 123 mmHg and diastolic pressure ...
Steyn D W - - 1997
BACKGROUND: Pre-eclampsia is associated with extensive endothelial-cell damage and platelet activation, resulting in lower production of vasodilator prostaglandins and increased release of the vasoconstrictors thromboxane A2 and serotonin. Damage to endothelial-cell serotonin-1 receptors leaves vasoconstriction and platelet aggregation mediated by serotonin-2 receptors unopposed. We investigated the role of ketanserin, a ...
Mantel G D - - 1997
OBJECTIVE: To assess the effect of low dose dopamine on the urine output in postpartum pre-eclamptic or eclamptic women with oliguria. DESIGN: A double blind, randomised controlled study. SETTING: The high care area of the labour ward in a teaching hospital. SAMPLE: Forty postpartum pre-eclamptic women with oliguria, defined as ...
Dong W - - 1997
OBJECTIVE: To assess whether the blood pressure is higher among women who take oral contraceptives than it is among those who do not. DESIGN: A cross-sectional survey of a stratified random sample of English adults (aged > or = 16 years). SETTING: Non-institutionalized households in England during 1994. PARTICIPANTS: From ...
Percy C - - 1997
Hypertension and other chronic diseases are becoming increasingly important health problems for many Native American people, including the Navajo. A community-based survey that included three standardized measurements of blood pressures, was conducted during 1991-92 on the Navajo Reservation. Among the 780 adults examined, the overall age-standardized prevalence of hypertension, defined ...
Ayala D E - - 1997
The evaluation of predictable variability in blood pressure by the use of ambulatory devices, and the proper processing of the time series thus obtained, can be useful for the early assessment of hypertensive complications in pregnancy. We have used this approach to quantify a predictable pattern of blood pressure and ...
Rajkumar C - - 1997
Fifty-four elderly people 81.2 years +/- 7.4 (mean age +/- s.d., range 66-98 years) were selected. These included 20 men (78.6 +/- 6.4 years, range 70-91 years) and 34 women (82.2 +/- 7.6 years, range 66-98 years). The relationship between the size of the abdominal aorta and various cardiovascular risk ...
McDermott D S - - 1997
BACKGROUND: Contraceptive use among women with an elevated risk of cardiovascular disease and stroke has generated little concern among primary care physicians. African Americans in the southeastern region of the United States are particularly vulnerable to hypertension but are often neglected in research studies of cardiovascular disease. The current study ...
Hermida R C - - 1997
This study investigated the effects of low-dose acetylsalicylic acid (aspirin) on blood pressure in pregnant women who were at risk of developing gestational hypertension or preeclampsia and who received aspirin at different times of the day according to their rest-activity cycle. A double-blind, randomized, controlled trial was conducted in 100 ...
Hetlevik I - - 1997
OBJECTIVE: To assess physicians' current adherence to the Norwegian clinical guidelines for the treatment of hypertension. DESIGN: Descriptive, retrospective registration of information from patient records of one specified year. In addition, mailed questionnaire to examine the representativeness of the participating doctors. SETTING: General practice in Sør- and Nord-Trøndelag counties in ...
Ayala D E - - 1997
With the aim to describe the circadian pattern of noninvasive ambulatorily monitored blood pressure during the trimesters of pregnancy in clinically healthy women as well as in pregnant women who developed gestational hypertension or preeclampsia, we analyzed 759 blood pressure series sampled by ambulatory monitoring for about 48 hours every ...
Hunt B E - - 1997
We tested the hypothesis that the age-related changes in systemic hemodynamic determinants of arterial blood pressure in healthy women are related to physical activity and hormone replacement status. We studied 66 healthy, normotensive premenopausal (21-35 yr) and postmenopausal (50-72 yr) sedentary and endurance-trained women under supine resting conditions. Mean blood ...
James GD - - 1997
OBJECTIVE: To examine and compare the relationships between the level of plasma renin activity (PRA) and ambulatory blood pressure variability for hypertensive women aged under 45 years (n = 72, aged 36 +/- 6 years) and for women aged over 50 years (n = 175, aged 61 +/- 8 years). ...
Cox B D BD Department of Community Medicine, Institute of Public Health, Robinson Way, Cambridge, CB2 2SR, - - 1997
To investigate which of six anthropometric indices was most strongly associated with elevated blood pressure and frank hypertension in a representative population sample of young and middle-aged British adults. A representative random sample of British adults (2712 men and 3279 women) aged between 18 and 64y, who were resident in ...
Singh R B - - 1997
OBJECTIVE: To compare the prevalence of hypertension and its risk factors with age-specific blood pressures in rural and urban subjects. DESIGN AND SETTING: A cross-sectional survey of two randomly selected villages and 20 randomly selected streets in Moradabad, north India. SUBJECTS AND METHODS: The subjects were 255 rural people (140 ...
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