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Results 401 - 450 of 911
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Klinge U - - 1999
Regarding oversized mechanical properties of most of the currently available materials a new mesh was developed (ETHICON, Norderstedt, Germany) and exactly adopted to the physiology of the human abdominal wall by reducing the amount of polypropylene (weight of <30 g/m2; mesh A). The consecutive increase of pores size as well ...
Jones D S - - 1999
BACKGROUND: Hypertension is a major cause of morbidity and mortality in the general population and has an even more significant impact on the black community in particular. Explaining the interethnic differences has been difficult. Differences in endothelial function may provide some insight into the causes of the increased incidence of ...
Gibbs C R - - 1999
The ethnic differences in the incidence, pathophysiology and management of hypertensive disease, are particularly pertinent to the Black or Afro-Caribbean populations, who have a high prevalence of hypertension and associated complications, such as strokes and renal impairment. Our understanding of the underlying pathophysiology of hypertensive disease and the optimal treatment ...
Aderibigbe A - - 1999
Sickle cell disease (SCD) is predominantly a problem of black community in whom a higher prevalence of hypertension has been reported. Despite these observations, a lower mean arterial blood pressure is observed to be common in homozygous sickle cell anaemia (SCA) patients, especially from outside Africa. In view of the ...
Martínez M A - - 1999
Most of the previous studies on white coat hypertension were performed in hypertension clinics or academic settings and included relatively small series of patients. Consequently, the prevalence of white coat hypertension in primary care settings and the clinical and epidemiologic characteristics of this subgroup of patients are not well known. ...
Seedat Y K - - 1999
Hypertension is a major disease in the black populations of sub-Saharan Africa and the USA. The prevalence of hypertension varies from 1-30% in the adult population. Differences in blood pressure (BP) between black and white patients have been documented. In this review genetic, endocrine and environmental characteristics, renal physiology and ...
Modesti P A - - 1999
A blood pressure increase was reported in black immigrants from Africa to Western countries. The present study was undertaken to evaluate whether an impairment of the cardiopulmonary reflex might make blacks unable to adapt peripheral vascular resistance to increased sodium intake. Ten normotensive clinically healthy blacks (aged 38+/-6 years) who ...
Yamaguchi Y - - 1999
We describe two adolescent boys with white coat hypertension. Both patients had significantly high blood pressure documented on more than three occasions at clinic. No cause for hypertension or target organ damage was demonstrated. Twenty-four-hour mean ambulatory blood pressure values were normal for height and sex, which led to the ...
Jackson R W - - 1999
Cardiovascular (CV) responsivity to and recovery from acute laboratory stressors, as derived from aggregate scores of CV functioning during and after postural change, video game challenge, social competence interview, and parent-child conflict discussion, were evaluated in 272 youths [mean age 13.5 +/- 2.6 years; 162 Blacks (77 males, 85 females), ...
Demark-Wahnefried W - - 1999
Previous research suggests that grocery store characteristics may be useful in evaluating community-based dietary interventions. We undertook a study to determine whether produce ratios (ratios of produce sales to total grocery sales) were a useful indicator of fruit and vegetable (F & V) consumption in a church-based, community intervention trial ...
Di Mauro S - - 1999
The so-called white coat effect occurs in about 42% of elderly patients. This phenomenon leads to several problems in treatment and may also cause renal disease. One of the most frequently controlled parameters is microalbuminuria, an index of renal damage. The present case-control study intended to evaluate the urinary excretion ...
Frisancho A. Roberto - - 1999
The tendency toward hypertension or higher blood pressure is more common in blacks than whites. The factors that account for these differences are attributed to both environmental and genetic factors. To clarify this issue, an anthropological study of black and nonblack populations in the lowland village of Chicaloma, northeastern Bolivia ...
Owens P - - 1998
BACKGROUND: A number of clinically identifiable patterns of blood pressure elevation are apparent using ambulatory measurement Their prevalence and age and sex distribution have not been described. The purpose of this study was to describe the epidemiology of patterns of high blood pressure in a large population. DESIGN: Retrospective database ...
Sandvik E - - 1998
OBJECTIVE: To examine the prevalence of white coat hypertension (WCH) and white coat effect (WCE) in a general practice. Background and biochemical characteristics, triglycerides, total cholesterol, HDL cholesterol, fasting blood glucose, microalbuminuria, ECG, smoking habits, height and weight of patients with white coat hypertension were compared to patients with sustained ...
Khattar R S - - 1998
BACKGROUND: The aim of this study was to compare the risk conferred by white-coat versus sustained mild hypertension for the development of cardiovascular disease. METHODS AND RESULTS: Patients (n=479) who underwent 24-hour intra-arterial ambulatory blood pressure monitoring on the basis of a persistently elevated clinic systolic blood pressure of 140 ...
Ergul S - - 1998
Plasma concentrations of immunoreactive endothelin-1 (irET-1) are significantly elevated in blacks with hypertension. In the present study, we investigated the effect of the regulation of high blood pressure on plasma irET-1 levels in black hypertensive individuals. After the initial blood samples were collected from 20 black patients with uncontrolled high ...
He F J - - 1998
Seventy-one white and 33 black patients with essential hypertension were studied while on a high sodium intake of 350 mmol/d for 5 days and low sodium intake of 10 mmol/d for 5 days. The fall in blood pressure on changing from the high sodium to the low sodium diet was ...
Owens P E - - 1998
BACKGROUND: The issue as to whether white coat hypertension is a pathologically significant entity, with associated target organ changes, or that the condition carries the same risk for target organ involvement as normotension, is undecided. Previous studies which have shown pathological correlates between white coat hypertension and target organ damage ...
Kurata C - - 1998
Should antihypertensive therapy be based on home blood-pressure monitoring in hypertensive patients with marked white-coat phenomenon? A 53-year-old hypertensive woman with marked white-coat phenomenon had been treated on the basis of blood pressure at home without measurements of clinic blood pressure for 5 years. The target of her treatment was ...
Inden Y - - 1998
BACKGROUND: White-coat hypertension has been diagnosed arbitrarily based on different criteria. In 1997, the Joint National Committee-VI (JNC-VI) reported a new classification of hypertension and strongly emphasized the importance of ambulatory blood pressure (ABP) monitoring. The report pronounced normal ABP values for the first time. HYPOTHESIS: The study's aim was ...
James GD - - 1998
OBJECTIVES: To compare, by sex, selected behavioral and biologic characteristics among normotensive, white-coat hypertensive, and essential hypertensive patients, and to assess the similarities and differences in these characteristics between men and women diagnosed as having white-coat hypertension. METHODS: The subjects of this study were 764 men (80 normotensives, 112 white-coat ...
Morar N - - 1998
BACKGROUND: Coronary heart disease (CHD) has reached 'epidemic' proportions in South Africa. CHD is uncommon in the black population of South Africa, yet the prevalence of hypertension in the adult black population is high. DESIGN: This study compared the blood pressure profile in 154 medical students of which 83 were ...
Kumanyika S K - - 1998
Recent blood pressure trends reflect progress in hypertension control, but prevalent drug therapy precludes direct estimation of the component due to primary prevention. In data gathered on persons aged 35-74 years in three successive US health examination surveys (1960-1980), systolic blood pressure levels assuming no drug therapy were imputed by ...
Yamasaki F - - 1998
To evaluate the effects of shift work and race/ethnicity on the diurnal rhythm of blood pressure and urinary catecholamine excretion of healthy female nurses, 37 African American women and 62 women of other races underwent ambulatory blood pressure monitor and urine collection for 24 hours that included a full work ...
Vargas C M - - 1998
A few small studies of white persons have found a positive association between serum albumin and blood pressure. However, this association might be due to ionized calcium. No data on albumin or ionized calcium have appeared for African Americans or Hispanics, and few for women. To explore the association of ...
Elias M F - - 1998
Arterial hypertension and blood pressure level are associated with modestly accelerated cognitive decline over the adult life span and with moderately increased risk of poor cognitive performance at all ages. Correlations between white matter lesions in brain and elevated blood pressure provide indirect evidence that structural and functional changes in ...
Muscholl M W - - 1998
To assess the relation between white coat hypertension and alterations of left ventricular structure and function. Cross sectional survey. Augsburg, Germany. 1677 subjects, aged 25 to 74 years, who participated in an echocardiographic substudy of the monitoring of trends and determinants in cardiovascular disease Augsburg study during 1994-5. Blood pressure ...
Donner-Banzhoff N - - 1998
BACKGROUND: The classical 'white coat response' to blood pressure measurement has been studied thoroughly. However, little is known about patients showing a reverse pattern, i.e. who have lower blood pressure readings at the clinic than outside healthcare facilities. AIM: To estimate the proportion of patients whose blood pressure levels as ...
McGill H C HC - - 1998
In a cooperative multicenter study, the Pathobiological Determinants of Atherosclerosis in Youth, we measured atherosclerosis of the aorta and right coronary artery (RCA) in 2403 black and white men and women 15 through 34 years of age who died of external causes and were autopsied in forensic laboratories. We measured ...
Skoog I - - 1998
Hypertension or high blood pressure is constantly reported to be the main risk factors for ischaemic white matter lesions (WMLs). These lesions show the histopathological picture of diffuse demyelination and moderate loss of axons in subcortical structures. The main hypothesis regarding the association between high blood pressure and ischaemic WMLs ...
Høegholm A - - 1998
The aim of this cross-sectional study which took place in a hypertension clinic at a district general hospital in Denmark was to make a pragmatic definition of white coat hypertension. A total of 420 patients were referred consecutively from general practice with newly diagnosed untreated essential hypertension and 146 normal ...
Verdecchia P - - 1998
The coexistence of persistently high office blood pressure with normal blood pressujre outside the medical setting is often referred to as 'white-coat', 'office' or 'isolated clinic' hypertension. The definition of normal blood pressure outside the medical setting is controversial. In our experience, not only the prevalence of white-coat hypertension, but ...
Cardillo C - - 1998
An abnormal hemodynamic response to stressful stimuli has been proposed as a mechanism involved in the higher prevalence of hypertension in blacks. Given the important role of nitric oxide (NO) in the regulation of cardiovascular homeostasis, we investigated the possibility of racial differences in vascular NO activity during mental stress. ...
Parati G - - 1998
The purpose of the present study was to evaluate whether the difference between blood pressure measured in the clinic or physician's office and the average daytime blood pressure accurately reflects the blood pressure response of the patient to the physician ("white coat effect" or "white coat hypertension"). We studied 28 ...
Sica D A - - 1998
Hypertension in blacks differs in a quantitative sense from hypertension in whites; it occurs in blacks with greater frequency and severity and at a younger age when compared with whites. In addition, elevated blood pressure at any level is associated with increased cardiovascular morbidity and mortality in black patients. Several ...
Nalbantgil I - - 1998
The aim of this study was to estimate the incidence of silent myocardial ischaemia in patients with mild to moderate hypertension, white-coat hypertension (WCH) and those with normal blood pressure. Ambulatory electrocardiographic (ECG) monitoring was carried out in 272 cases with normal blood pressure, 164 cases with mild to moderate ...
Donahue R P - - 1998
PURPOSE: The aim of this study was to examine the associations among fasting insulin, adiposity, waist girth, and blood pressure among a nondiabetic multiethnic population. METHODS: A cross-sectional study was performed among 25-44-year-old African-Americans (n = 159), Cuban-Americans (n = 128), and non-Hispanic whites (n = 207) selected from Dade ...
Mayet J - - 1998
Black hypertensive persons have been observed to have a greater degree of left ventricular hypertrophy than white hypertensives. However, previous studies have matched groups for blood pressure (BP) measured in the clinic, and it has been demonstrated that black hypertensives have an attenuated nocturnal BP dip. Clinic BPs may thus ...
He J - - 1998
Many studies have suggested that African Americans have a higher prevalence of hypertension than whites. The authors conducted a prospective study of hypertension incidence from 1987-1988 to 1994-1995 in 140 African American and 237 white adults aged 30 to 54 years at baseline. The study participants were screened for participation ...
Bovenzi M - - 1998
OBJECTIVE: This study investigated the relation between vibration exposure, the prevalence of white fingers, and the cold response of digital arterial vessels in workers using vibrating tools. METHODS: The change in finger systolic blood pressure (FSBP) at 15 and 10 degrees C as the percentage of the pressure at 30 ...
Saito I - - 1998
BACKGROUND: White-coat hypertension, defined as hypertensive blood pressure values in a clinical setting but normal self-measured blood pressures, is relatively common among young patients but long-term spontaneous changes in clinic blood pressure in these patients with white-coat hypertension have not been assessed. DESIGN: A prospective study, with two clinical examinations ...
Seedat Y K YK Department of Medicine, University of Natal, - - 1998
It is accepted that blacks differ from white and Indian hypertensives in their response to hypotensive agents. Black hypertensives in the USA have lower urinary tissue kallikrein (TK) excretion levels than white hypertensives. It has been suggested that blacks respond better to thiazide diuretics than to beta-blockers because thiazides increase ...
Scisney-Matlock M - - 1998
Lifestyle behaviors are thought to be guided by cognitive or mental representations that function to structure knowledge related to behaviors and goals. The Lifestyle Hypertension Cognitive Representations (LHCR) scale was developed to measure cognitions about hypertension-related behaviors on three cognitive dimensions. Items were derived from a literature and content analysis ...
Kaplan N M - - 1998
Hypertension may be difficult to treat for multiple reasons. First some patients have pseudoresistance, displaying high pressure readings only in the physician's office from the "white coat" effect. Second, volume expansion, usually from inadequate diuretic therapy, is the most common reason for true resistance. A number of other mechanisms may ...
Chifamba J - - 1998
OBJECTIVES: To study the effect of variation in environmental temperature on blood pressure and pulse. DESIGN: Repeated blood pressure and pulse measurements in volunteers on two days when environmental temperatures differed by 10 degrees C. SETTING: Part of an ongoing community based study. SUBJECTS: 25 Black subjects (23 males and ...
Pehl C - - 1998
BACKGROUND: White wine and beer induce gastroesophageal reflux (GER). We investigated the effects of white and red wine on lower esophageal sphincter pressure (LESP) and GER. METHODS: Twenty healthy volunteers received 300 ml white wine, red wine, or water together with a standardized meal. The LESP was continuously monitored with ...
Le Pailleur C - - 1998
To explore the mechanisms of the "white coat" phenomenon, the effects of talking, reading, and silence were analyzed. Fifty essential hypertensive patients were randomly allocated to periods of stress talking and relaxing reading, alternating with three periods of silence. While talking, systolic/diastolic blood pressure increased sharply, from 142 +/- 0.7/97.7 ...
Santo Neto H - - 1998
The incidence of a third head of the biceps brachii muscle has been reported in several articles, and there is a general idea that it is a race-dependent variation. The aim of this investigation was to study the biceps brachii muscle with regard to the incidence of its third head ...
Murdison K A - - 1998
To determine predictors of left ventricular mass (LVM) and hypertrophy (LVH), 56 black and 30 white normotensive healthy youths (mean age 12.6 +/- 2.3 years at initial visit) were studied twice, 2.5 years apart. During the initial visit, anthropometric variables and hemodynamics were measured at rest and before, during, and ...
Pierdomenico S D - - 1998
Low-density lipoprotein oxidation and antioxidant vitamins E and C were investigated in white-coat hypertension in comparison with sustained hypertension and normotension. We selected 21 sustained hypertensive subjects, 21 white-coat hypertensive subjects, and 21 normotensive subjects matched for gender, age, and body mass index. White-coat hypertension was defined as clinical hypertension ...
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