Search Results
Results 201 - 250 of 2432
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Agarwal Rajiv - - 2010
BACKGROUND: Circadian variation in blood pressure (BP), which is commonly blunted among patients with chronic kidney disease (CKD), has been associated with increased cardiovascular risk. The causes of this blunted circadian variation remain incompletely understood. METHODS: We hypothesized that physical activity is a determinant of circadian BP variation. Accordingly, we ...
Guo Haiyan - - 2010
Mild cognitive impairment (MCI), a syndrome characteristic of the transition phase between normal cognitive function and dementia, has been shown to carry the risk of progression to dementia. Dysregulation of blood pressure (BP) is thought to be an indicator of cerebrovascular damage, including cognitive impairment. Here, we investigated the possible ...
Tu Wanzhu - - 2009
Blood pressure (BP) and growth increase at an accelerated rate during puberty. The temporal relationship of the two events has not been well characterized. The purpose of this current investigation was to examine the rate of BP change in relation to pubertal growth with the intent to shed light on ...
Maclullich Alasdair M J - - 2009
Hypertension is associated with the development of white matter lesions in older people. Diffusion tensor MRI can detect subtle, previsible white matter damage, but relationships between diffusion tensor MRI parameters and blood pressure (BP) remain unclear. We examined correlations among mean diffusivity (MD), fractional anisotropy and BP in 45 men ...
Park Kwang Joo - - 2009
BACKGROUND: The recruitment maneuver (RM) in acute respiratory distress syndrome (ARDS) can cause hemodynamic derangement. We evaluated circulatory and cardiac changes during RMs. METHODS: We performed sustained inflation (SI) with a pressure of 40 cm H(2)O for 30 seconds as an RM on 22 patients with ARDS. Blood pressure (BP) ...
Florian John P - - 2010
Previous studies have shown that acute increases in plasma NEFAs (non-esterified fatty acids) raise SVR (systemic vascular resistance) and BP (blood pressure). However, these studies have failed to distinguish between CNS (central nervous system) mechanisms that raise sympathetic activity and paracrine mechanisms that increase SVR directly, independent of CNS involvement. ...
Tsai Meng-Li - - 2009
The low-frequency (0.2-0.8 Hz) component of blood pressure (BP) variability (LF(BP)) is used as an index of the low-frequency variability of sympathetic nerve activity (SNA) (LF(SNA)) in rats. It is unclear whether the LF(BP) can be used as an index of the mean SNA (mSNA). We investigated the correlation of ...
Tamer Ali - - 2009
OBJECTIVE: The aim of this study was to evaluate the effect of mobile phone (MP) on cardiac electrical activity by examining the heart rate variability (HRV), QT, P dispersions and blood pressure (BP) while the MP is located on the precordium. METHODS: A total of 24 healthy volunteers were included ...
Ohta Yuko - - 2009
Many guidelines recommended strict blood pressure (BP) control to prevent cardiovascular events. However, BP control in a substantial majority of hypertensives remains to be insufficient. We have determined the trends of BP control of the same patients during 15 years in a hypertension clinic. One hundred three patients (age 32-91, ...
Czarkowski Marek - - 2009
BACKGROUND: The accuracy of oscillometric blood pressure (BP) measuring devices determined in resting conditions may be distorted in those under hemodialysis (HD). METHODS: The evaluation of accuracy of the Omron HEM-907 was performed in accordance with the International Protocol for validation of BP measuring devices (IP). Out of a group ...
Langewitz Wolf - - 2009
A new automatic blood pressure (BP) measuring device PhysioQuant (also marketed under the brand name Ergoscan) was evaluated according to the International Protocol for Validation of Blood Pressure Measuring Devices in adults issued by the European Society of Hypertension. BP values measured by the PhysioQuant were compared with BP readings ...
Tian Jun-Ping - - 2009
Volume overload is thought to be the main cause of hypertension in dialysis patients. However, the effect of interdialytic weight gain (IDWG) in hemodialysis (HD) patients, which was considered as an increase in extracellular water (ECW), on blood pressure (BP) change, was controversial. Our aim was to examine the changes ...
Niiranen Teemu J - - 2009
OBJECTIVES: Most of the earlier studies assessing the determinants of pulse wave velocity (PWV) have been conducted with conventional clinic blood pressure (BP) measurements. The aim of this study was to assess whether PWV is more strongly associated with home-measured BP than clinic BP. Other risk factors associated with PWV ...
Hegg Annie M - - 2009
Office BP measurements are unable to detect 24-hour variability in blood pressure. ABPM is a tool that can assess BP at extended intervals, aiding in the diagnosis of white coat hypertension, masked hypertension and nighttime non-dipping status. Value exists in knowing a patient's BP variability so the appropriate treatment regimen ...
Castilla-Guerra Luis - - 2009
BACKGROUND: We aim to evaluate prospectively the long-term changes of blood pressure (BP) in stroke survivors using ambulatory BP monitoring (ABPM) and compare them with the clinic conventional measurements. METHODS: We studied 101 patients who were admitted within 24h after stroke onset. To study the circadian rhythm of BP a ...
Fahs Christopher A - - 2009
Cardiovascular disease is the leading cause of death among firefighters. The purpose of the present study was to examine the effect of excess body weight on arterial structure and function and blood pressure (BP) in relatively young, apparently healthy, firefighters. The body mass index, brachial BP, carotid BP, aortic BP, ...
Radke K J - - 2010
Seasonal variation in blood pressure (BP) has been described in some people, although the variation is small for both systolic and diastolic BPs. The aim of this study was to elucidate underlying haemodynamic and hormonal mechanisms that may occur to defend seasonal changes in BP. Participants were 27 men and ...
Bramlage Carsten Paul - - 2009
The influence of prenatal factors on the development of arterial hypertension has gained considerable interest in recent years. Prenatal dexamethasone exposure was found to induce hypertension and to alter nephron number and size in rodents and sheep. However, it is not clear whether these findings are applicable to nonhuman primates. ...
Vlek Anneloes L M - - 2009
Cerebral atrophy on brain magnetic resonance imaging (MRI) has been associated with vascular risk factors including hypertension. Progression of cerebral atrophy and its risk factors have not been studied in vascular disease patients. This study aimed to assess the progression of cerebral atrophy and to evaluate possible associations with blood ...
Yano Yuichiro - - 2009
It has remained unclear whether or not morning blood pressure (BP) surge (MS) is associated with cardiovascular remodeling in elderly (> or =60 years) hypertensive patients being treated by antihypertensive medications. In this cross-sectional study (n = 197; mean 74.6 years; 37% men), we evaluated the association between MS, defined ...
Brook Robert D - - 2009
A short-term increase in fine particulate matter air pollution (PM(2.5)) concentration increases the risk for myocardial infarctions, strokes, and heart failure exacerbations. An important mechanism likely contributing to these associations is an elevation in arterial blood pressure (BP). Exposure to ambient PM(2.5) even at present-day concentrations can increase BP within ...
Matoba Munetoshi - - 2009
The aim of this study was to investigate morning hypertension and self measurement of blood pressure (BP) at home. Ninety-six patients out of 260 hypertensive (HT) out patients with antihypertensive medication measured their BP at home and data were collected from 60 patients (21 men, 39 women: mean age 74.8 ...
Kim Jung Eun - - 2009
The most important treatment for subcortical vascular dementia (SVaD) is controlling the blood pressure (BP). However, the few studies that have investigated the relationships between diurnal BP rhythm and subcortical ischemic vascular cognitive impairment have produced inconclusive results. In the study presented here, the 24-hour BP values of three groups ...
Masuda Shin-ichiro S Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, - - 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 the angiotensin II type 1 receptor blocker (ARB) would improve ambulatory short-term BP variability in hypertensive patients with diabetic nephropathy. A total of 30 patients with ...
Nakashita Manami - - 2009
Both a large habitual alcohol intake and a pattern of circadian blood pressure (BP) variation characterized by a high morning/daytime BP have been reported to be risk factors for cerebral hemorrhage. Therefore, the association between these two factors was examined. A total of 194 men in the general population of ...
Singh Sanjeev K - - 2009
Present study was conducted to identify the efferents mediating the vasosensory reflexes evoked by intra-arterial (i.a.) injection of Mesobuthus tamulus (BT; 1mg/kg) venom in the distal segment of femoral artery. Blood pressure (BP), electrocardiogram (ECG) and respiratory movements were recorded for 60 min after the i.a. injection of venom in ...
Sauvaget C - - 2010
In India, cardiovascular events are often diagnosed at lower blood pressures (BP) than in Western countries, questioning whether the actual World Health Organization cut-off points for hypertension (systolic BP (SBP) >or=140 mm Hg and/or diastolic BP (DBP) >or=90 mm Hg) are appropriate in low resource countries. A large population-based cohort ...
Lima Nereida K C - - 2010
The aim of this study was to determine whether age influences the concordance between different methods of blood pressure (BP) measurement and ambulatory BP monitoring (ABPM) in hypertensive subjects. We studied two groups: I, individuals younger than 50 years (n=57), and II, individuals aged 60 years or older (n=55). They ...
Staals Julie - - 2009
Hypertension is an important risk factor for brain microbleeds (BMBs) in lacunar stroke patients. However, beyond the qualitative label "hypertension," little is known about the association with ambulatory blood pressure (BP) levels. In 123 first-ever lacunar stroke patients we performed 24-hour ambulatory BP monitoring after the acute stroke-phase. We counted ...
Hermida Ram??n C - - 2009
OBJECTIVES: The extent of morning blood pressure (BP) surge upon wakening has been associated with increased incidence of stroke and cardiovascular mortality. This trial investigated the antihypertensive efficacy and effects on the morning BP surge of awakening versus bedtime administration of nifedipine in essential hypertension. METHODS: We studied 238 previously ...
Ayala Diana E - - 2009
There is a strong association between metabolic syndrome (MS) and increased risk of end-organ damage, cardiovascular disease, stroke, and cardiovascular mortality. Moreover, non-dipping (<10% decline in the asleep relative to the awake blood pressure [BP] mean) and elevated ambulatory pulse pressure (PP), among other factors related to the circadian BP ...
Carruthers S G - - 2009
Erythropoietin (EPO) and its analogs increase blood pressure (BP) in susceptible patients. The ratio of truncated to full EPO receptors (EPORs) in endothelial progenitor cells harvested from anemic patients receiving EPO while undergoing hemodialysis is related to the increased BP observed in these patients. Truncated EPORs exert a hypertensive effect ...
Ito Kie - - 2009
OBJECTIVE: The objective of this study was to clarify the factors affecting the morning-evening home systolic blood pressure (BP) difference (home systolic ME dif) in treated hypertensive patients, including evening home BP measuring conditions, based on the data from the Japan Home versus Office BP Measurement Evaluation study. METHODS: The ...
Tof?? Povedano Santiago - - 2009
Ambulatory blood pressure monitoring (ABPM) allows determining of the nocturnal blood pressure fall (NBPF). An NBPF below 10% (nondipper pattern) has been related to increased cardiovascular risk, and it is a common finding in type 2 diabetic hypertensive patients. The authors evaluated the impact on 24-hour blood pressure, NBPF, and ...
Mordukhovich Irina - - 2009
Particulate matter (PM) air pollution has been associated with cardiovascular morbidity and mortality, and elevated blood pressure (BP) is a known risk factor for cardiovascular disease. A small number of studies have investigated the relationship between PM and BP and found mixed results. Evidence suggests that traffic-related air pollution contributes ...
Tai Mei-Kuei - - 2010
This observational study used repeated measures over 24 hr to investigate ambulatory blood pressure (BP) and physical activity (PA) profiles in community-based individuals with heart failure (HF). The aims were to (a) compare BP dipping and PA between two groups of HF patients with different functional statuses, and (b) determine ...
Stergiou G S - - 2010
Several studies compared blood pressure (BP) at home (HBP) with ambulatory BP (ABP), but using different devices, which contribute to differences in measured BP. A novel dual-mode device allowing ABP and HBP monitoring (Microlife WatchBPO3) was validated according to the European Society of Hypertension International Protocol and used to compare ...
Rauchenzauner Markus - - 2009
AIMS: To evaluate the effects of a 24 h (h) physicians on-call duty (OCD) ('night shift') on 24 h electrocardiogram (ECG), heart rate variability, blood pressure (BP), and various biochemical serum and urine 'stress markers' compared with a 'regular' day at work. METHODS AND RESULTS: The study was designed as ...
McLaughlin Douglas - - 2010
Interventions to improve pediatric blood pressure (BP) screening have not been well studied. The authors measured staff acceptance of 2 simple in-office interventions and measured the effect on physician recognition of elevated BP measurements. Group 1 used simplified normative pediatric BP tables affixed to the growth chart, group 2 used ...
da Silva Giovanio Vieira - - 2009
BACKGROUND: It is not known if the adjustment of antihypertensive therapy based on home blood pressure monitoring (HBPM) can improve blood pressure (BP) control among haemodialysis patients. METHODS: This is an open randomized clinical trial. Hypertensive patients on haemodialysis were randomized to have the antihypertensive therapy adjusted based on predialysis ...
Jiang Z - - 2010
To compare the circadian variation of blood pressure (BP) between patients with intra-cerebral haemorrhage (ICH) and with cerebral infarction (CI), around-the-clock BP measurements were obtained from 89 hypertensive patients with ICH, from 63 patients with CI and from 16 normotensive volunteers. The single and population-mean cosinor yielded individual and group ...
Atkinson Greg - - 2009
The exercise-related response of the rate-pressure-product (RPP) is a prognostic marker of autonomic imbalance, cardiovascular mortality, and silent myocardial ischemia in hypertension. In view of the well-known 24 h variation in out-of-hospital sudden cardiac events, our aim was to investigate whether the reactivity of RPP to everyday physical activities varies ...
Mancia Giuseppe - - 2009
It is well established that lowering blood pressure (BP) in patients with hypertension is associated with cardiovascular protection. Therefore, BP goals have been defined by international hypertension guidelines (<140/90 mmHg; <130/80 mmHg for patients with type 2 diabetes). However, the relationship of BP with prognosis is complex, and controlling office ...
Rosendorff Clive - - 2009
PURPOSE OF REVIEW: The review assesses the evidence for the benefit of lower blood pressure (BP) targets in hypertension management. RECENT FINDINGS: The current consensus target for the treatment of hypertension is a BP of below 140/90 mmHg for all patients, and a BP of below 130/80 mmHg for those ...
Meyer Thomas - - 2009
The tight control of blood pressure (BP) is mandatory during cerebral aneurysm coiling to minimize abrupt changes in the transmural pressure across the aneurysm and thereby decrease the risk of rupture. Critical times during these procedures when significant BP changes may occur include anesthetic induction, endotracheal intubation, and emergence. Clevidipine ...
Mancia Giuseppe - - 2009
It is debated whether white-coat (WCHT) and masked hypertension (MHT) are at greater risk of developing a sustained hypertensive state (SHT). In 1412 subjects of the Pressioni Arteriose Monitorate e Loro Associazioni Study, we measured office blood pressure (BP), 24-hour ambulatory BP, and home BP. The condition of WCHT was ...
Lin L-Y - - 2009
This study aims to evaluate whether indoor particles are associated with elevated blood pressure (BP) and heart rate (HR). We recruited 40 young, healthy students from universities in Taipei. We made four home visits in which we took consecutive 48-h measurements of systolic BP, (SBP) diastolic BP (DBP), and HR ...
Birns J - - 2009
BACKGROUND: It has been suggested that impaired cerebral autoregulation and vasodilatory capacity may play in role in the pathogenesis of the leukoaraiosis seen in small vessel disease. Adequate perfusion of the deep white matter of the brain depends on the relationships between blood pressure (BP), cerebral vasoreactivity and autoregulation. METHODS: ...
Agarwal Rajiv - - 2009
Although volume excess causes hypertension, whether it also affects circadian patterns of arterial pressures among hemodialysis patients remains unknown. To test the notion of whether volume overload is associated with a unique blood pressure (BP) "signature," a posthoc analysis was performed among 145 patients participating in the Dry-Weight Reduction in ...
Agarwal Rajiv - - 2009
Hemodialysis patients have a steady increase in blood pressure (BP) during the 44-hour interdialytic interval when ambulatory BP monitoring is used. Home BP recording allows for a longer period of monitoring between dialysis treatments and may better define the chronobiological characteristics of arterial hypertension. This study sought to determine the ...
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