Search Results
Results 251 - 300 of 2432
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Stergiou George S - - 2009
In type 1 diabetes, the risk of nephropathy is strongly influenced by the level of blood pressure (BP). Ambulatory BP (ABP) monitoring has revealed an association between disturbed nocturnal BP drop and albuminuria and suggested a role of BP in microalbuminuria development. This study investigated the relationship between the urinary ...
Pierdomenico Sante D - - 2009
The independent prognostic significance of different indices of blood pressure (BP) variability is not clear. We investigated the prognostic value of BP variability estimated as s.d. or average real variability (ARV) of daytime and night time BP, in hypertensive patients. The occurrence of fatal and nonfatal cardiovascular events was evaluated ...
Blasi Eileen - - 2009
ILLUMINATE, the phase 3 morbidity and mortality trial of the cholesteryl ester transfer protein (CETP) inhibitor, torcetrapib, plus atorvastatin terminated in 2006. The underlying morbidity and mortality cause remains undetermined. In addition to lipoprotein changes, off-target increases in blood pressure (BP), sodium, bicarbonate, and aldosterone and potassium decreases were described. ...
Sehestedt Thomas - - 2009
OBJECTIVE: Medical treatment of healthy individuals with high normal blood pressure (BP) is recommended if there is subclinical organ damage (SOD). We examined which markers of SOD to use based on their supplementary prognostic value. METHODS: In a population sample of 1968 individuals, aged 41, 51, 61 and 71 years, ...
Ohkubo Takayoshi - - 2009
Ambulatory and home blood pressure (BP) measurements more accurately and reliably reflect the true BP levels of individuals than conventional BP measurement. Moreover, they can be measured over an extended period, thus generating information about BP variability. We conducted a population-based prospective study in Japan (the Ohasama study), demonstrating their ...
Liivak Kaur - - 2009
AIM: To study the effect of two hydrocortisone (HC) treatment regimens on 24-h blood pressure (BP) profiles in children with congenital adrenal hyperplasia (CAH). DESIGN: Six patients (4 F/2 M) with the salt-wasting form of CAH, aged from 5.0-9.7 years, underwent 24-h BP monitoring on two treatment regimens: a higher ...
Myers Martin G - - 2009
OBJECTIVE: Conventional office blood pressure (BP) readings are affected by various factors including the presence of an observer and the setting. This study was undertaken to assess the consistency of automated self-measurement of BP in the office during repeat visits and in different settings. Automated office BP readings were also ...
Eguchi Kazuo - - 2009
To clarify whether a shorter interval between three successive home blood pressure (HBP) readings (10 s vs. 1 min) taken twice a day gives a better prediction of the average 24-h BP and better patient compliance. We enrolled 56 patients from a hypertension clinic (mean age: 60 +/- 14 years; ...
Mellman Thomas A - - 2009
OBJECTIVE: To evaluate the relationship between posttraumatic stress disorder (PTSD) and nocturnal blood pressure (BP) dipping in young adult African Americans (AAs). PTSD is associated with physical illnesses including cardiovascular conditions. Sleep disturbances related to heightened arousal likely contribute to physical health risk; however, this possibility has not been studied. ...
Karemaker John M - - 2009
Inflight 24-h profiles of blood pressure (BP) and heart rate (HR) were recorded in 2 ESA-astronauts by automatic upper arm cuff measurements. In one astronaut this was combined with Portapres continuous finger blood pressure recordings. It was the intention to contrast the latter to 24-h recordings in an earlier Head-Down-Tilted ...
Takeda Atsushi - - 2009
BACKGROUND: Nondipper hypertensive patients have more pronounced target organ injury. We examined whether shifting the time of dosing long-acting antihypertensive drugs from morning to bedtime reduces nocturnal blood pressure (BP) and restores normal nocturnal dipping in nondippers with essential hypertension. METHODS: We studied 71 Japanese hypertensive patients who received long-acting ...
Thomas KaMala S - - 2009
Although neighborhood disadvantage has been linked to the development of cardiovascular disease, the mechanism through which living in impoverished neighborhoods is associated with poor cardiovascular health is not well understood. Additionally, it is not clear whether individual socioeconomic status (SES) interacts with neighborhood factors to influence cardiovascular outcomes. Using multilevel ...
Rinfret St?phane - - 2009
BACKGROUND: Hypertension is a leading mortality risk factor yet inadequately controlled in most affected subjects. Effective programs to address this problem are lacking. We hypothesized that an information technology-supported management program could help improve blood pressure (BP) control. METHODS AND RESULTS: This randomized controlled trial included 223 primary care hypertensive ...
Birns Jonathan - - 2009
BACKGROUND: Although hypertension is known to cause brain damage and cognitive impairment, epidemiological studies suggest that lower blood pressure (BP) in patients with established cerebrovascular disease is associated with more rapid cognitive decline. We investigated the relationship between 24-h ambulatory blood pressure (ABP) measurements, cerebrovascular disease load and cognitive performance ...
Ozawa Motoko - - 2009
We examined risk factors for coronary heart disease (CHD) by ambulatory blood pressure (BP) monitoring in 72 diabetic hypertensives who were hospitalized for the educational program. The patients were divided into two groups (CHD group, 19 subjects; and non-CHD group, 53 subjects) along with or without co-existing CHD. On ambulatory ...
Scuteri Angelo - - 2009
AIMS: Left ventricular (LV) mass increase is considered part of composite target organ damage in hypertension and an independent risk factor for cardiovascular (CV) events. This study was designed to explore whether left ventricular mass index (LVMI) is associated with cognitive decline and dementia in elderly subjects, independently of blood ...
Zhao Weixin - - 2009
INTRODUCTION: Stimulation of the cavernous nerve elicits increases in intracavernosal pressure (ICP) and visible penile erection (VPE) in rats. The observed penile erection can be characterized by the change in ICP and the ratio of ICP over blood pressure (BP; systemic blood pressure). AIM: We evaluated correlations between ICP, BP, ...
Duan Jun-Li - - 2009
1. Blood pressure variability (BPV) includes physiological and random variations in blood pressure (BP). Commonly used approaches, such as standard deviation (SD) and weighted standard deviation (wSD) methods, do not efficiently assess random variation in BP. In the present study, we propose a novel method to assess individual BP variations, ...
Akasheh Ashkan - - 2009
Chinese rural residents make up one-eighth of the world's population. Hypertension (HTN) and its resultant cardiovascular complications are rapidly increasing in this vast segment of humanity, while its treatment and control remain unacceptably low. HTN is associated with increased left ventricular mass (LVM), but the magnitude and characteristics of this ...
Mitsuhashi Hiroshi - - 2009
Previous studies have shown increases in ambulatory short-term blood pressure (BP) variability to be related to cardiovascular disease. In this study, we examined whether an angiotensin II type 1 receptor blocker losartan would improve ambulatory short-term BP variability in hypertensive patients on hemodialysis. Forty hypertensive patients on hemodialysis therapy were ...
Zhang Rong - - 2009
The physiological mechanism(s) for the regulation of the dynamic pressure-flow relationship of the cerebral circulation are not well understood. We studied the effects of acute cerebral vasoconstriction on the transfer function between spontaneous changes in blood pressure (BP) and cerebral blood flow velocity (CBFV) in 13 healthy subjects (30 +/- ...
Lee S - - 2009
BACKGROUND AND AIM: Little is known about the effect of magnesium on insulin sensitivity and BP in healthy individuals. Therefore, we investigated whether magnesium could improve insulin sensitivity and blood pressure (BP) in normo-magnesemic nondiabetic overweight adults. METHODS AND RESULTS: In a double-blinded, placebo-controlled, randomized trial, a total of 155 ...
Sakka Samir G - - 2009
BACKGROUND AND OBJECTIVE: Systolic pressure variation (SPV) and stroke volume variation (SVV) are clinical indicators of fluid responsiveness. However, several factors may influence these parameters and thereby limit their usefulness. In this clinical study, we analysed SPV and SVV in comparison with static preload parameters during an increase in arterial ...
KrzemiƄski K - - 2009
Our previous study showed elevation of plasma adrenomedullin (ADM) during static handgrip in patients with heart failure (HF). It is hypothesized that ADM increases with left ventricle dysfunction during handgrip and thus plays a compensatory role. In the present study pre-ejection period (PEP) and left ventricular ejection time (LVET) were ...
Dechering Dirk G - - 2009
OBJECTIVE: Studies directly comparing the associations of intima-media thickness with blood pressure (BP) on manual sphygmomanometric blood pressure measurement (SBPM) and 24-h ambulatory blood pressure measurement (ABPM) are scarce and have a cross-sectional design. METHODS: At baseline, we measured systolic and diastolic blood pressures, pulse pressure, and mean arterial pressure ...
Liu Zhong - - 2009
Ambulatory arterial stiffness index (AASI) is a novel estimate of arterial stiffness, which independently predicts cardiovascular mortality, even in normotensive individuals. Additionally, other markers derived from ambulatory blood pressure (BP) monitoring, including variability, pulse pressure, nocturnal dipping, and morning BP surge, have all been shown to be predictive of end-organ ...
Suh Myung-Whan - - 2009
OBJECTIVES: The objective of this study was to evaluate the merits of a blood pressure (BP) manometry feedback method for measurement of vestibular evoked myogenic potentials. METHODS: Sixty ears of 30 normal volunteers were prospectively investigated. The vestibular evoked myogenic potentials were recorded under 3 different conditions: in the feedback-negative ...
Pausova Zdenka Z Brain and Body Centre, University of Nottingham, Nottingham, United Kingdom. - - 2009
FTO is the first gene established as contributing to common forms of obesity. The gene is highly expressed in the hypothalamus and is thought to mediate this effect through its influence on energy homeostasis. The hypothalamus, however, also regulates blood pressure (BP). Therefore, we investigated whether the FTO-risk variant is ...
Verheyden Bart - - 2009
To what extent does going to space affect cardiovascular function? Although many studies have addressed this question, the answer remains controversial. Even for such primary parameters as heart rate (HR) and blood pressure (BP) contradictory results have been presented. The purpose of this investigation was to evaluate HR and arterial ...
Li Zhibin - - 2009
This study evaluates the tracking stability of office blood pressure (BP), ambulatory BP (ABP), BP variability (BPV) and nocturnal BP drops (dipping) from childhood to early adulthood, and their dependence on ethnicity, gender and family history (FH) of essential hypertension (EH). Generalized estimating equations (GEEs) were used to estimate tracking ...
Stergiou G S - - 2009
Oscillometric devices are being widely used for ambulatory, home and office blood pressure (BP) measurement. However, even successfully validated oscillometric devices fail to provide accurate measurements in some patients. This study investigated the prevalence, the reproducibility and the characteristics of the phenomenon of unreliable oscillometric BP (UOBP) measurement. A total ...
Andoh Daisaku - - 2009
In non-diabetic patients with nephrotic syndrome (NS) at early stages of chronic kidney disease, it remains unclear whether the degree of proteinuria affects the nocturnal blood pressure (BP) dip. We evaluated the relationship among circadian BP rhythm, proteinuria and hypoalbuminemia in these patients. We also evaluated the autonomic nervous activity. ...
Soylu Ahmet - - 2009
BACKGROUND: To determine the individual effect of abnormalities in blood pressure (BP) circadian rhythm (non-dipping status (NDS), increased morning BP (MBP) or increased MBP surge (MBPS)) on target organ damage (TOD) and which of these is more closely related to TOD in normotensives. METHODS AND RESULTS: The 24-h ambulatory BP ...
Conen David - - 2009
AIMS: The aim of this study was to examine the association between socioeconomic status, blood pressure (BP) progression, and incident hypertension. METHODS AND RESULTS: We included 27 207 female health professionals free of hypertension and cardiovascular disease at baseline. Participants were classified into five education and six income categories. The ...
Furusawa E A - - 2009
Blood pressure (BP) measurement is the basis for the diagnosis and management of arterial hypertension. The aim of this study was to compare BP measurements performed in the office and at home (home blood pressure monitoring, HBPM) in children and adolescents with chronic arterial hypertension. HBPM was performed by the ...
Dvonch J Timothy - - 2009
Recent studies have suggested a link between exposure to ambient particulate matter <2.5 microm in diameter (PM(2.5)) and adverse cardiovascular outcomes. The objective of this study was to examine the effects of differing community-level exposure to PM(2.5) on daily measures of blood pressure (BP) among an adult population. During the ...
Stergiou George S - - 2009
Studies using ambulatory blood pressure (BP) monitoring have shown that in children and adolescents masked hypertension (MH) is not uncommon. This school-based study investigated the prevalence and the characteristics of MH diagnosed using home BP measurements. A total of 765 subjects aged 6-18 years were assessed with office (two visits, ...
Brodie Fiona G - - 2009
Spontaneous fluctuations in BP (blood pressure) and subsequent change in CBFV (cerebral blood flow velocity) in the MCA (middle cerebral artery) can be used to assess dynamic cerebral autoregulation using transfer function analysis; however, the reliability of this technique has not been assessed, in particular the contribution of intra-subject variability ...
Gu Steven - - 2009
Understanding the mechanisms that underlie BP (blood pressure) variation in humans and animal models may provide important clues for reducing the burden of uncontrolled hypertension in industrialized societies. High BP is often associated with increased signalling via G-protein-coupled receptors. Three members of the RGS (regulator of G-protein signalling) superfamily RGS2, ...
Joe Soo Geun - - 2009
To investigate the relationship between blood pressure (BP) parameters in the habitual position and glaucomatous damage at initial presentation in patients with untreated normal tension glaucoma (NTG). Fifty-four eyes from 54 subjects diagnosed with NTG were consecutively enrolled. BP was measured with an automated ambulatory monitoring device in the habitual ...
Raffai G - - 2010
Sustained orthostasis elicits the elevation of arterial blood pressure (BP) via sympathetic activation in conscious Wistar rats for at least 2 hours. We tested the hypothesis whether vestibular apparatus plays a role in BP and heart rate (HR) control in response to prolonged gravitational stress. BP and HR responses to ...
Laugesen Esben - - 2009
Ambulatory arterial stiffness index (AASI) has been proposed as an indirect measure of arterial stiffness. The aims of this study were (i) to analyze AASI and pulse pressure (PP) in micro- and normoalbuminuric type 1 diabetes mellitus (T1DM) patients and healthy controls and (ii) to explore the relation between nocturnal ...
Asferg Camilla - - 2009
Low-grade chronic inflammation has been proposed to play a major role in the pathogenesis of hypertension. Low-grade chronic inflammation is also closely associated with obesity, an established causative factor in the development of hypertension. The purpose of this study was to investigate the relationship between two markers of inflammation, C-reactive ...
Stergiou George S - - 2009
This study compared the long-term reproducibility of home blood pressure (BP) in comparison with office BP in children and adolescents. Forty-eight subjects (27 boys, mean age 11.3+/-3.1 (s.d.) years) recruited from the Arsakeion school study because of elevated office and/or home BP were assessed with office (1 visit, mercury sphygmomanometer) ...
Moore William E - - 2009
There are few studies of the prevalence of elevated blood pressure (BP) that include American Indian school children. Therefore, the intent of this study was to examine the relationships between BP and risk factors in a multiracial, predominantly American Indian, school district. A total of 1,829 American Indian, white, Hispanic, ...
Safar Michel E - - 2009
Although the differences between central and peripheral BP (blood pressure) have been known for decades, the consequences of decision-making based on peripheral rather than central BP have only recently been recognized. The influence of cyclic stretch (owing to cyclic changes in BP) on the aortic wall in atherosclerosis has been ...
Eeftinck Schattenkerk Daan W - - 2009
The Finapres methodology offers continuous measurement of blood pressure (BP) in a noninvasive manner. The latest development using this methodology is the Nexfin monitor. The present study evaluated the accuracy of Nexfin noninvasive arterial pressure (NAP) compared with auscultatory BP measurements (Riva-Rocci/Korotkoff, RRK). In supine subjects NAP was compared to ...
Zanettini João Otavio - - 2010
BACKGROUND: Studies of the association between hypertensive response (HR) in the exercise treadmill testing (ETT) and end organ damage are mostly cross-sectional and have not used ABPM. We investigated the association of different definitions of HR with incidence of hypertension by ABPM and development of cardiac structural abnormalities. METHODS: Normotensive ...
Lee Donna H - - 2009
When blood pressure (BP) is elevated above baseline, a pressure natriuresis-diuresis response ensues, critical to volume and BP homeostasis. Distal convoluted tubule Na(+)-Cl(-) cotransporter (NCC) is regulated by trafficking between the apical plasma membrane (APM) and subapical cytoplasmic vesicles (SCV). We aimed to determine whether NCC trafficking contributes to pressure ...
Zou Ding - - 2009
OBJECTIVE AND BACKGROUND: Pulse wave amplitude (PWA) derived from the digital vascular bed has been used in sleep studies. The nocturnal attenuation of PWA has been shown to reflect sympathetic activation during sleep. We assessed the relationship between nocturnal PWA attenuation and office blood pressure (BP). METHODS: Eighty-one subjects (46 ...
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