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Gotshall R W - - 1994
Orthostatic stress, sitting, results in adjustments of cardiovascular variables to maintain blood pressure and is prominent in a variety of occupations. Sitting serves as the control position for head-out water immersion studies. This study addressed gender differences in the cardiovascular response to prolonged sitting. Ten men and 10 women had ...
Staessen J A - - 1994
BACKGROUND: Several reports on the possible association between low-level lead exposure and blood pressure reflect diverging views. This meta-analysis aimed to find a common denominator in the published literature and to estimate whether a relationship exists between blood pressure and levels of lead in the blood. METHODS: Of the studies ...
King H - - 1994
Surveys of noncommunicable diseases were performed in six communities in Papua New Guinea during 1985-1986. Results are reported here with respect to blood pressure and associated factors in adults. Mean systolic and diastolic blood pressures were lowest, and hypertension was rarest (less than 2%), in three rural/semirural villages on Karkar ...
Paterson-Brown S - - 1994
OBJECTIVE: To audit the use of bolus hydralazine for control of severe hypertension within a protocol for the management of severe pre-eclampsia. DESIGN: A retrospective review. SETTING: Three UK teaching hospitals. SUBJECTS: Seventy consecutive women who received hydralazine for the treatment of sustained severe hypertension. Twenty-five women had more than ...
Ashley D - - 1994
In an attempt to identify causes of perinatal mortality and thence devise preventative strategies on the island of Jamaica, a study was made of the 1847 singleton perinatal deaths occurring over the 12-month period between 1 September 1986 and 31 August 1987. Complications of the pregnancy were elicited by questioning ...
van Leer E M - - 1994
To investigate trends in blood pressure and the prevalence and treatment of hypertension in the Netherlands between 1974 and 1986, data from two screening projects on cardiovascular risk factors were used. Between 1974 and 1980 about 30,000 men and women aged 37-43 were screened. Between 1981-1986 about 80,000 men aged ...
Ekholm E - - 1994
A changed pressor response to some cardiovascular reflex tests and an increase in midtrimester blood pressure has been reported to precede the appearance of hypertension in pregnancy-induced hypertensive disorders (PIH). In order to compare the value of midtrimester blood pressure with the cardiovascular reflex tests, in predicting the risk of ...
Witteman J C - - 1994
The J-shaped relation between diastolic blood pressure and mortality from coronary heart disease continues to provoke controversy. We examined the association between diastolic blood pressure and progression of aortic atherosclerosis in a population-based cohort of 855 women, aged 45-64 years at baseline. The women were examined radiographically for calcified deposits ...
He J - - 1994
Body mass has been consistently associated with blood pressure in acculturated populations but not in lean populations with low blood pressures. In southwestern China, in 1989, the authors studied the relation between body mass and blood pressure in three community-based random samples: rural Yi farmers (5,023 men, 3,218 women); Yi ...
Barrett-Connor E - - 1994
OBJECTIVE: To determine if an association exists between low blood pressure and depressive symptoms in older men living in the community. DESIGN: Cross sectional, population based study. SETTING: Town of Rancho Bernardo, California, United States. SUBJECTS: 846 men aged 60-89 years. Comparisons between hypotensive, normotensive, and hypertensive groups were limited ...
López M C - - 1994
OBJECTIVE: The aim of this study was to compare the two Korotkoff phases, to estimate diastolic blood pressure during pregnancy. STUDY DESIGN: A cohort of 1194 nulliparous pregnant women were followed up prospectively from the twentieth week of pregnancy until delivery. Blood pressure measurements were obtained with random-zero sphygmomanometers at ...
Guzman E R - - 1994
OBJECTIVE: To evaluate the ability of ultrasound with transfundal pressure to detect the incompetent cervix in pregnant women at risk for this condition. METHODS: One hundred fifty pregnant women with no prior pregnancy losses were scanned transabdominally, and 31 asymptomatic pregnant women with a prior history of cervical incompetency or ...
Karvonen J - - 1994
We measured the maximal inspiratory and expiratory pressures of 200 healthy subjects (94 men and 106 women) using a membrane manometer designed by the authors. The reference intervals for maximal inspiratory pressure in men were -5 to -15 kPa, and for maximal expiratory pressure 9-21 kPa. For women the reference ...
Himmelmann A - - 1994
OBJECTIVE: To follow the changes in blood pressure and echocardiographically determined left ventricular mass in offspring of mothers who had hypertension during pregnancy. DESIGN: Longitudinal study with a 5-year follow-up. METHODS: Nineteen offspring of mothers who had hypertension during pregnancy, and sustained hypertension at follow-up 7-12 years after term, were ...
Owens J F - - 1993
BACKGROUND: Frequent and large cardiovascular and neuroendocrine responses to psychological stress are thought to enhance an individual's risk for cardiovascular diseases. Preliminary data suggest that levels of reproductive hormones affect the magnitude of stress responses, perhaps contributing to the protective effect of ovarian hormones on premenopausal women's rates of coronary ...
Kyle P M - - 1993
OBJECTIVE: To assess the effectiveness of second trimester 24-hour ambulatory blood pressure measurement as a screening test for pre-eclampsia. DESIGN: Prospective interventional study. SETTING: John Radcliffe Maternity Hospital, Oxford, and Queen Charlotte's and Chelsea Hospital, London. SUBJECTS: One hundred and sixty-two normotensive nulliparous women recruited at hospital booking clinics. INTERVENTION: ...
Shennan A H - - 1993
OBJECTIVE: To determine the accuracy of the SpaceLabs 90207 ambulatory blood pressure monitor in pregnant women. DESIGN: Prospective observational study. SETTING: Queen Charlotte's and Chelsea Hospital for Women. SUBJECTS: One hundred and twenty-two pregnant women from the antenatal population of Queen Charlotte's Hospital. METHODS: Evaluation was carried out according to ...
Langer R D - - 1993
Higher diastolic pressure predicted better survival in men 75 years or older in two prior analyses in the Rancho Bernardo population. Diastolic change was implicated as a possible explanation. We studied this by assessing survival according to blood pressure change in 795 men and women aged 75 years and older ...
Theorell T - - 1993
A homogeneous sample of 56 women who were between the ages of 20 and 59 years and worked in acute emergency care, child psychiatry, or a pediatric outpatient clinic comprised the subjects of this study to determine the relationship between job strain and blood pressure. Job strain was measured with ...
Conde-Agudelo A - - 1993
OBJECTIVE: The purpose of this study was to determine the predictive value of elevated mean arterial pressure in the second half of pregnancy for both preeclampsia and gestational hypertension. STUDY DESIGN: This was a cohort of 588 nulliparous pregnant women studied prospectively from the twentieth week until delivery. Mean arterial ...
Massé J - - 1993
OBJECTIVE: The purpose of this study was to prospectively evaluate the predictive performance of several potential biologic markers of preeclampsia used alone or in combination. STUDY DESIGN: A prospective cohort of 1366 nulliparous women was followed up longitudinally on three occasions during pregnancy. The predictive performance of the tests, used ...
Halligan A - - 1993
OBJECTIVE: To establish the profiles of 24-h non-invasive ambulatory blood pressure measurement (ABPM) during the trimesters of pregnancy and the puerperium in normotensive healthy primigravidae. DESIGN: A prospective study in which 24-h ABPM was performed on five occasions in each subject: in the first trimester between 9 and 16 weeks' ...
Tranquilli A L - - 1993
OBJECTIVE: To describe the trend of intracellular sodium in patients who develop preeclampsia. STUDY DESIGN: In this longitudinal study, we determined intraerythrocyte sodium (Nai) in 303 primigravid pregnancies every fourth week from gestational week 10 through week 38. The study group included 274 normotensive and 29 chronic hypertensive gravidae. During ...
Sarker M H - - 1993
One thousand six hundred and ninety six males and females living in Dhaka city and a nearby village were grouped according to their age and occupation. The subjects blood pressure and occupation were recorded. The study revealed that occupation had a significant effect on both diastolic and systolic blood pressure, ...
Evans S A - - 1993
BACKGROUND: Transdiaphragmatic pressure (sniff PDI) during maximal sniffs is a useful clinical test of inspiratory muscle function. Although a normal range has been established for sniff PDI using air filled balloons, no comparable data are available for catheter mounted pressure transducers. METHODS: Using a single catheter with two pressure transducers ...
Lindheimer M D - - 1993
High blood pressure, which complicates approximately 10% of all pregnancies, remains a major cause of morbidity and mortality for both mother and fetus. A relative paucity of investigative data, as well as the frequent difficulty in making an etiological diagnosis by clinical criteria alone, may be among the reasons why ...
Ness R B - - 1993
Gravidity and parity have been hypothesized as possible protective factors for hypertension in women, but results of previous studies have been conflicting; none of three U.S. studies has clearly demonstrated this relation. We studied the association of number of pregnancies to blood pressure and hypertension in a cross-sectional study of ...
Ikeda T - - 1993
OBJECTIVES: The aims of this study were to determine the possible role of hyperinsulinaemia in the increase in blood pressure in acromegalic patients. DESIGN: After an overnight fast, blood samples were obtained at 0. 30, 60, 120 and 180 min after 75 g glucose ingestion, and plasma growth hormone (GH) ...
Dolenc P - - 1993
OBJECTIVE: Long-term exposure to high concentrations of lead may adversely affect several organ systems, but the possible influence of low-level lead exposure on blood pressure remains debatable. The present study examined this relationship in a cross-sectional population survey. METHODS: Blood pressure and lead exposure were measured in 1648 subjects (827 ...
Scragg R - - 1993
AIMS: To investigate ethnic variations in blood pressure levels and the likelihood of hypertension being treated in a multicultural New Zealand workforce. METHODS: An employed population of 5651 staff aged 40 to 64 years at worksites in Auckland and Tokoroa, who recorded their current prescribed medication, were measured for blood ...
Ayala D E - - 1993
Conventional time-unspecified single measurements of blood pressure and heart rate may be misleading because they may be influenced, among other factors, by the patient's emotional state, position, diet, and external stimuli. All of these effects depend on the stages of a (mathematical) spectrum of rhythms and trends with age. The ...
Nichols M - - 1993
OBJECTIVE: To evaluate blood pressure changes in the pill-free interval and from baseline among women taking four different low-dose monophasic oral contraceptives. DESIGN: 131 women were randomized to four different oral contraceptives. Pressures were obtained at baseline, at the end of treatment cycles and at the end of the 7 ...
Marx G F - - 1993
OBJECTIVE: In laboring women a consistent difference has become evident between measurements obtained with an automated blood pressure device and those obtained with the auscultatory method. A prospective study was designed to assess the concordance of these two methods. STUDY DESIGN: Three sets of brachial blood pressure measurements were made ...
Ramsay M M - - 1993
OBJECTIVE: To study cardiovascular responses to noradrenaline during early pregnancy. DESIGN: Administration of incremental intravenous infusions of noradrenaline under basal conditions. SETTING: University Hospital, Nottingham. SUBJECTS: Nineteen women admitted for termination of pregnancy in first or second trimester and 18 nonpregnant women as control subjects. INTERVENTIONS: Recordings of blood pressure ...
Rosengren A - - 1993
OBJECTIVE: To examine the relation between systolic blood pressure and self perceived wellbeing in 50 year old men. DESIGN: Cross sectional population study of data derived from questionnaires and physical examination as a part of a cardiovascular risk factor survey. SETTING: City of Gothenburg, Sweden. STUDY POPULATION: 776 men from ...
Yunis C - - 1993
Oral contraceptive use has been increasing in Brazil since the late 1970s, and oral contraceptives have been associated with higher incidence of cardiovascular diseases, including hypertension, since their release in the United States and Europe. We examined the association between oral contraceptive use and blood pressure levels in 1457 workers ...
Crews D E - - 1993
We determined associations of measures of body habitus with blood pressure for 100 adult Yanomami Indians (61 men, 39 women) examined during February and March 1990. Measurements included body weight and height, four skinfolds (triceps, subscapular, suprailiac, abdomen), four circumferences (wrist, upper arm, abdomen, hip), systolic and diastolic blood pressures, ...
Woo J - - 1992
The association between urinary albumin:creatinine ratio and other cardiovascular risk factors such as age, blood pressure, obesity, glycemic indices, insulin and lipid profile was examined in a population in a Chinese community consisting of 795 men (mean age 35.8 +/- 8.8 yr) and 538 women (mean age 37.9 +/- 8.9 ...
Enström I - - 1992
A blood pressure screening was carried out in women aged 40-64 years in a geographically defined area in southern Sweden; the attendance was 72%. Middle-aged women classified as normotensives by standard criteria were found to differ from hypertensives also when blood pressure was recorded with non-invasive ambulatory technique; this was ...
Okonofua F E - - 1992
The purpose of this longitudinal study was to determine the pattern of blood pressure during pregnancy in Nigerian women. The blood pressure of 189 women from early pregnancy and up to term, during labor and 24 h after delivery were monitored. The mean systolic, diastolic and mean arterial blood pressure ...
Simon J A - - 1992
The authors studied the relative importance of calcium intake as a correlate of blood pressure in a cross-sectional analysis of 6,517 nonblack women aged > or = 65 years from Portland, Oregon; Minneapolis, Minnesota; Baltimore, Maryland; and the Monongahela Valley near Pittsburgh, Pennsylvania, who enrolled in the Study of Osteoporotic ...
Palmer A J - - 1992
The relation between stroke mortality and blood pressure was investigated in 10,186 hypertensive patients followed up in the Department of Health Hypertension Care Computing Project for an average of 9 years. An untreated blood pressure measurement was available in 3,472 men and 3,405 women. The age-adjusted risk of stroke death ...
Rey E - - 1992
OBJECTIVE: To identify the effects of methyldopa on umbilical and placental artery Doppler velocity waveforms in mild preeclamptic and chronic hypertensive women with blood pressure below 160/110 mmHg. METHODS: Twenty-two normotensive, 11 untreated mild preeclamptic, 14 treated mild preeclamptic, 29 untreated chronic hypertensive, and 14 treated chronic hypertensive women were ...
Burke V - - 1992
The association between certain lifestyle and personality characteristics and blood pressure in the elderly was assessed in a cross-sectional study of 843 independent living 60-87 year old volunteers. They comprised 338 women and 505 men of whom 35 and 30% respectively were being treated with antihypertensive drugs. Among untreated volunteers, ...
Moodley J - - 1992
OBJECTIVE: To compare the antihypertensive effects of epoprostenol sodium (prostacyclin) with that of dihydralazine in acute hypertensive crises of pregnancy. DESIGN: A prospective randomized study. A minimum of 20 patients per group was considered statistically acceptable (alpha = 0.05, power = 0.9). SETTING: A large urban tertiary hospital. SUBJECTS: Forty-seven ...
Johenning A R - - 1992
Controversy exists regarding which Korotkoff phase should be used to estimate diastolic blood pressure during pregnancy, some authorities recommending phase 5 (disappearance of sounds) and others suggesting phase 4 (muffling). Available data indicate that Korotkoff phase 5 more closely approximates true intraarterial diastolic pressure in pregnant women. Nonetheless, it has ...
Sorensen T K - - 1992
OBJECTIVE: Our study examined the effects of orthostatic stress and maternal hemodynamics on umbilical systolic/diastolic ratios in normal and hypertensive pregnancies. STUDY DESIGN: Eighteen normal and 20 hypertensive third-trimester pregnancies were examined in the left lateral recumbent, sitting, and standing positions. Measurements included umbilical systolic/diastolic ratio, maternal blood pressure, maternal ...
Cirillo M - - 1992
Baseline data from the Gubbio Population Study in north central Italy were used to investigate the relation of hematocrit to blood pressure and hypertension among 2,809 men and women aged 25-74 years. Independent of gender, age, and other confounders, the hypertensive group had a higher hematocrit than the nonhypertensive group ...
Tsukimori K - - 1992
OBJECTIVE: To clarify the role of endothelial cells in pregnancy-related hypertensive disorders, we studied the cytotoxic effect of sera from normal pregnant women and from gravidas with various hypertensive complications of pregnancy. METHODS: We obtained serum samples from 84 Japanese women: 17 with preeclampsia, ten with gestational hypertension, six with ...
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