Search Results
Results 451 - 500 of 1121
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Onah He - - 2002
This study evaluated the prognostic value of absolute versus relative rise in blood pressure during pregnancy at the Department of Obstetrics and Gynaecology, University of Nigeria Teaching Hospital, Enugu, Nigeria from 17th December 1997 to 31st March 1999. The study sample consisted of 515 consecutive healthy antenatal subjects of the ...
Franco Veronica - - 2002
Hypertension, particularly systolic hypertension, affects postmenopausal women and is an important risk factor for cardiovascular disease in this group. In the last year, several papers have better defined the mechanisms by which hormone replacement therapy influences blood pressure in postmenopausal women, including effects on nitric oxide, angiotensin II and vascular ...
Dubey Raghvendra K - - 2002
Gender has an important influence on blood pressure, with premenopausal women having a lower arterial blood pressure than age-matched men. Compared with premenopausal women, postmenopausal women have higher blood pressures, suggesting that ovarian hormones may modulate blood pressure. However, whether sex hormones are responsible for the observed gender-associated differences in ...
Hu Gang - - 2002
PURPOSE: The relationship between both commuting and leisure-time physical activity and selected cardiovascular risk factors was analyzed. METHODS: A cross-sectional survey was carried out in 1996 in urban Tianjin, China. A total of 2002 male and 1974 female subjects aged 15-69 yr completed the survey. Commuting, leisure-time physical activity, body ...
Blomqvist, S
The bird-lemming hypothesis postulates that breeding success of tundra-nesting geese and waders in Siberia follows the cyclic pattern of lemming populations, as a result of predators switching from lemmings to birds when the lemming, population crashes. We present 50 years of data on constant-effort catches of red knot Calidris canutus ...
Ohira Tetsuya - - 2002
OBJECTIVE: To examine the relation of anger expression with blood pressure and hypertension among Japanese. DESIGN: A cross-sectional study. METHODS: Subjects were 4374 men and women aged 30-74 years from rural and urban communities. Anger expression was estimated using the anger-out and anger-in scores of the Spielberger Anger Expression Scale. ...
Bohner Gerd - - 2002
Processing strategies in risk assessment were studied in an Internet experiment. Women (N = 399) who were either low or high in rape myth acceptance (RMA) were asked to recall either two or six behaviors that either increase or decrease the risk of being sexually assaulted. Later they judged their ...
Stephens Dan P - - 2002
We tested whether a nonnoradrenergic component of reflex vasoconstriction of skin blood flow (SkBF) is sensitive to female reproductive hormones. Six women taking oral contraceptives underwent whole-body cooling during high-hormone (HH) and low-hormone (LH) phases of oral contraceptive use. SkBF was monitored by laser Doppler flowmetry (LDF) at sites treated ...
Enström Inger - - 2002
OBJECTIVE: To examine whether blood pressure over 24 h differed between postmenopausal women receiving and not receiving hormone replacement therapy. METHODS: One group of hormone replacement postmenopausal women (n = 32) and one group of non-hormone replacement (n = 32) postmenopausal women underwent non-invasive 24-h ambulatory blood pressure monitoring. They ...
Lu Jianfeng - - 2002
OBJECTIVE: To describe the relationship between plasma magnesium (Mg(2+)) concentration and blood pressure response in pregnant women with preeclampsia. METHODS: Fifty-one preeclamptic women were studied after receiving two consecutive magnesium sulfate infusions (120 mg/kg for 1 hour and 24 mg/kg for 5 hours). Mg(2+) concentration and systolic/diastolic blood pressure were ...
Bergel E - - 2002
Hypertensive disorders are among the most common medical complications of pregnancy and a leading cause of maternal and perinatal morbidity and mortality world-wide. Blood pressure measurement plays a central role in the screening and management of hypertension during pregnancy. In recent years the validity of conventional (clinic) blood pressure measurement ...
Németh Ilona I Department of Pediatrics, Medical Faculty of Szeged University, Korányi fasor 14-15, Szeged H-6725, Hungary. - - 2002
We hypothesized that activation of the xanthine oxidase (XO) enzyme system is a potential source of free radicals in pregnancy-induced hypertension (PIH). A prospective observational study was carried out on 16 pregnant women who met the criteria of gestational hypertension [rise in blood pressure (BP) of 30 mm Hg systolic ...
Belfort Michael A MA Division of Maternal-Fetal Medicine, Department of Obstetrics, University of Utah School of Medicine, Salt Lake City, UT, USA. - - 2002
To research the cerebral hemodynamic effects of labetalol in pregnant women with hypertension. Prospective observational study. Tertiary Care Medical Center. Pregnant patients with hypertension. Transcranial Doppler (TCD) ultrasound was used to measure the blood velocity in the middle cerebral arteries (MCA) of eight pregnant patients with hypertension, before and after ...
Angerer P - - 2001
OBJECTIVES: It remains an unsolved issue whether hormone replacement therapy (HRT) lowers blood pressure. This randomized trial examined the effect of 17beta-oestradiol combined cyclically with gestodene on blood pressure of postmenopausal women who were not on antihypertensive medication. All subjects had an increased risk for adverse vascular events as indicated ...
Kusuma Y S - - 2001
BACKGROUND: Hypertension is becoming a major public health problem in developing countries. Blood pressure tends to vary cross-culturally and is influenced by various factors including age, body composition and pulse rate. This paper reports the influence of age, body composition and pulse rate on blood pressure variability. DESIGN: The data ...
Lauszus F F - - 2001
BACKGROUND: Twenty-four-hour ambulatory blood pressure was evaluated as a predictor of preeclampsia in women with insulin-dependent diabetes mellitus with respect to urinary albumin excretion rate and glycemic regulation. METHODS: One hundred and fifty-one women with insulin-dependent diabetes mellitus were consecutively recruited from the outpatient maternity ward for 24 hour ambulatory ...
Redon J - - 2001
Despite the fact that the study and applicability of ambulatory blood pressure in children and pregnant women share characteristics which limit the potential development of knowledge for their use, advances produced in the last few years provided the present knowledge regarding the significance and the potential use of ambulatory blood ...
Shiell A W - - 2001
To examine the hypothesis that a high-animal protein, low-carbohydrate diet in pregnancy is associated with raised blood pressure in the adult offspring, we performed a follow-up study of 626 men and women in Motherwell, Scotland, whose mothers' food intake had been recorded during pregnancy. The mothers had taken part in ...
Logan A G - - 2001
OBJECTIVES: To determine the prevalence of obstructive sleep apnoea (OSA) in adult patients with drug-resistant hypertension, a common problem in a tertiary care facility. DESIGN: Cross-sectional study. SETTING: University hypertension clinic. PATIENTS AND METHODS: Adults with drug-resistant hypertension, defined as a clinic blood pressure of > or = 140/90 mmHg, ...
Steinbrook R A - - 2001
During laparoscopic cholecystectomy in four pregnant women, we observed hemodynamic changes similar to those in nonpregnant patients (i.e., decreases in cardiac index together with increases in mean arterial blood pressure and systemic vascular resistance).
Heilmann P - - 2001
In this study we evaluated the activity of renal 11beta-hydroxysteroid dehydrogenase type 2 (11beta-HSD2) in patients with pregnancy-induced hypertension (PIH). A reduction of the activity of 11beta-HSD2 leads to pseudohyperaldosteronism due to insufficient interconversion of cortisol to its inactive 11-oxo-metabolite cortisone in the renal tubulus cell. We measured urinary free ...
Belfort M A - - 2001
OBJECTIVE: To determine any differences in cerebral perfusion pressure in patients with chronic hypertension compared with those with chronic hypertension and superimposed pre-eclampsia. DESIGN: A prospective observational study. SETTING: University hospital clinic and labour and delivery suite. PARTICIPANTS: Fifteen women with chronic hypertension and 15 with superimposed pre-eclampsia. METHODS: Transcranial ...
Keogh E - - 2001
Evidence from both hypertensive and normotensive individuals indicate that elevated blood pressure is associated with decreased pain sensitivity. The current study sought to experimentally raise blood pressure using 250 mg caffeine, and investigate its effects on the cold pressor pain experiences of 25 men and 25 women. In a placebo-controlled ...
Riskin-Mashiah S - - 2001
OBJECTIVE: To compare cerebrovascular reactivity in normotensive and preeclamptic pregnant women. METHODS: Transcranial Doppler ultrasound was used to measure peak, end-diastolic, and mean velocities in the middle cerebral arteries of 45 normotensive and 36 preeclamptic women in the third trimester. All measurements were done in the left lateral position at ...
Merlo J - - 2001
STUDY OBJECTIVES: To study geographical differences in diastolic blood pressure and the influence of the social environment (census percentage of people with low educational achievement) on individual diastolic blood pressure level, after controlling for individual age and educational achievement. To compare the results of multilevel and ecological analyses. DESIGN: Cross ...
Schwartz S - - 2001
Changes in systolic blood pressure following the consumption of a standard meal were measured. We hypothesized that larger postprandial drops in systolic blood pressure would be associated with elevated subsyndromal depressive symptomatology. Following an overnight fast, individuals consumed a liquid meal. Blood pressure and pulse were measured preprandially and during ...
Staffileno B A - - 2001
BACKGROUND: Lifestyle modifications, such as physical activity, are recommended as first-line or adjunctive therapy for hypertension. However, controversy exists regarding the type, amount, and intensity of physical activity for optimal blood pressure lowering. DESIGN AND METHODS: This study evaluated the blood pressure changes in 18 post-menopausal, sedentary, untreated hypertensive women ...
Evans O - - 2001
This study assessed the influence of work social support on self-monitored heart rate, blood pressure, and salivary cortisol recorded on 3 work days and 2 leisure days from 61 nurses and 32 accountants (40 men, 53 women). Heart rate and blood pressure were higher during the day at work than ...
Steyn K - - 2001
OBJECTIVES: To determine the prevalence and treatment status of hypertension in South Africa. DESIGN: National cross-sectional survey. SETTING: 13 802 randomly selected South Africans, 15 years and older, were visited in their homes in 1998. METHODS: Trained fieldworkers completed questionnaires on lifestyle and chronic diseases, measured blood pressure with an ...
Hermida R C - - 2001
To recognize the highly statistically significant circadian variability of blood pressure in pregnancy is to admit that the diagnosis of gestational hypertension or preeclampsia should be based not just on whether a casual blood pressure value is too high or too low, but rather on more pertinent questions: How long ...
Endrikat J - - 2001
OBJECTIVES: Evaluation of the impact of a monophasic gestodene-based oral contraceptive on blood pressure in a population that was normotensive at baseline. METHODS: Data on blood pressure were retrospectively analyzed from four large prospective clinical phase III trials with an oral contraceptive containing 20 microg ethinylestradiol and 75 microg gestodene. ...
Ezeoma I T - - 2001
Five hundred and fifty randomly selected healthy non-pregnant females and males aged 15 years and above were studied to determine the variation of blood pressure with body build and sex. Of the 550 respondents, 265 (48.2%) and 285 (51.8%) were males and females respectively while 60.2% were youths. Body build ...
Ayala D E - - 2001
Studies based on casual blood pressure measurements concluded that both age and parity have significant effects on blood pressure during pregnancy. We have tested these results on clinically healthy normotensive women who were systematically studied by ambulatory blood pressure monitoring during their pregnancies. We analyzed 1254 blood pressure series sampled ...
De Leo V - - 2001
Increases in blood pressure and weight are consequences of increased fluid retention following oral contraceptives administration. Hypertension and weight increase are particularly frequent in women over 35 years of age. The aim of the present study was to evaluate the clinical and hormonal effects of a new extra-low dose oral ...
Brown M A - - 2001
OBJECTIVE: The purpose of this study was to determine the predictive ability of parameters of 24-hour ambulatory blood pressure monitoring for the development of preeclampsia or gestational hypertension in women who are already considered at risk for these disorders. STUDY DESIGN: One hundred twenty-two pregnant women who were considered high ...
Scuteri A - - 2001
BACKGROUND: The incidence of hypertension in postmenopausal women exceeds that in age-matched men. Longitudinal studies relating hormone replacement therapy (HRT) to blood pressure changes are sparse. OBJECTIVE: To investigate the association between HRT and longitudinal changes in blood pressure in postmenopausal women. DESIGN: Longitudinal observational study. SETTING: Community-dwelling volunteers. PATIENTS: ...
Staessen J A - - 2001
In previous cross-sectional and longitudinal population studies, we found that the slope of systolic pressure on age was steeper in postmenopausal than in premenopausal women. We hypothesised that this observation could be due to a specific effect of menopause on the elasticity of the large arteries. We investigated 315 randomly ...
Ma R M - - 2001
OBJECTIVE: To examine the relationship between oral glucose tolerance test (OGTT) results and maternal mean arterial pressure (MAP) throughout pregnancy in normotensive women. STUDY DESIGN: A retrospective study was performed on 84 pregnant women with normal and abnormal antenatal OGTT results who delivered in a 12-month period to determine the ...
Zamorski M A - - 2001
The National High Blood Pressure Education Program's Working Group on High Blood Pressure in Pregnancy recently issued a report implicating hypertension as a complication in 6 to 8 percent of pregnancies. Hypertension in pregnancy is related to one of four conditions: (1) chronic hypertension that predates pregnancy; (2) preeclampsia-eclampsia, a ...
Niromanesh S - - 2001
OBJECTIVE: To study the effect of calcium supplementation on reduction of pre-eclampsia in Iranian women at high risk of pre-eclampsia. METHODS: Thirty pregnant women at high risk of developing pre-eclampsia were randomized to 2 g of daily calcium and placebo. Subjects and investigators were blinded to treatment allocation. The inclusion ...
D'Antono B - - 2001
Psychological factors have long been implicated in the development of hypertension. Most studies exploring this relationship employed questionnaires administered on only one occasion. OBJECTIVE: to evaluate the relation between blood pressure and social behavior in the natural environment over an extended period of time. METHOD: 40 healthy young adult women ...
Timio M - - 2001
The powerful effect of psychosocial and acculturating influences on population blood pressure trends seems to be confirmed, through longitudinal observations, in the nuns in a secluded order. After initial observation had been made on culture, body form, blood pressure, diet, and other variables in 144 nuns and 138 laywomen, included ...
Tochikubo O - - 2001
OBJECTIVE: Many studies have reported that the resting heart rate (HR) is intimately related to the prognosis of cardiovascular disease. However, HR in the waking state is influenced by psychological and physical activity and has low reproducibility. To measure the base HR (minimum and stable HR during sleep) with ease, ...
Hermida R C - - 2001
The double product (DP), systolic blood pressure multiplied by heart rate, is a surrogate measure of myocardial oxygen demand and cardiac workload used increasingly today in medicine. The double product is more strongly correlated with left ventricular mass than the daily blood pressure mean. The purpose of this study was ...
Reckelhoff J F - - 2001
Men are at greater risk for cardiovascular and renal disease than are age-matched, premenopausal women. Recent studies using the technique of 24-hour ambulatory blood pressure monitoring have shown that blood pressure is higher in men than in women at similar ages. After menopause, however, blood pressure increases in women to ...
Hofmeyr G J GJ Department of Obstetrics and Gynaecology, Coronation Hospital and Effective Care Research Unit, University of the Witwatersrand, - - 2001
Misoprostol, an inexpensive, stable, orally active prostaglandin analogue, has been suggested for use in the prevention of postpartum haemorrhage. Potential side-effects, however, need to be quantified. To compare the rate of postpartum shivering and pyrexia following oral misoprostol 600 micrograms and placebo. A double-blind placebo-controlled trial. Women in labour were ...
Thadhani R - - 2001
OBJECTIVE: To find whether pulse pressure, a measure of arterial compliance, is associated early in pregnancy with increased risk of developing preeclampsia. METHODS: In a prospective cohort of 576 nulliparas, we examined blood pressures throughout pregnancy and at 6-8 weeks postpartum. Measurements during weeks 7-15, 16-24, and 25-38 of gestation ...
Zhang J - - 2001
Low blood pressure during pregnancy has been associated with poor perinatal outcomes. However, whether this association is causal or is due to confounding has never been carefully assessed. The authors used data from the Collaborative Perinatal Project, a large prospective cohort study in 12 hospitals in the United States from ...
Satish S - - 2001
OBJECTIVES: To explore the relationship between systolic and diastolic blood pressure and risk of 6-year, all-cause mortality in men and women age 65 to 84 versus those 85 and older. DESIGN: A population-based longitudinal study. SETTING: This study was conducted at four different sites: East Boston, Massachusetts; New Haven, Connecticut; ...
Page G D - - 2001
Although medical survey studies often rely on self-reported symptoms to establish the presence or absence of clinical conditions in respondents, recent findings suggest that surveys that assess a broad range of symptoms may have limited sensitivity in detecting specific clinical conditions such as hypertension. The present study evaluated the accuracy ...
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