Search Results
Results 701 - 750 of 2536
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Ormezzano O - - 2007
Hypertensive patients with altered circadian blood pressure (BP) profile experience greater repercussion of hypertension on target organs and a higher risk of cardiovascular events, compared with those with physiological variations in BP. It has been demonstrated in animal models, that circadian variations in BP depend on several regulatory systems, in ...
Kuriyama Satoru - - 2007
BACKGROUND: Correction of anemia by erythropoietin (EPO) is often associated with a rise in blood pressure (BP; EPO-induced hypertension). Most studies regarding EPO-induced hypertension have involved evaluation using office/clinic BP (OBP). However, recent investigations suggest that BP measured at home (HBP) may be of more importance for clinical practice in ...
Pedersen Ole Lederballe - - 2007
OBJECTIVE: The ambulatory blood pressure (ABP) monitoring substudy of the Valsartan Antihypertensive Long-term Use Evaluation (VALUE) trial was carried out in a subset of patients from USA, Italy and Denmark. ABP was measured after 1 year in the trial, with the aim of evaluating comparability of ABP levels on valsartan ...
Selby Nicholas M - - 2007
We examined whether progressive reduction of dialysate sodium with Diacontrol (DC, plasma conductivity targeted feedback system) confers any clinical benefit over a similar strategy using dialysis with fixed dialysate conductivity (HD). Ten stable patients entered a randomized crossover study conducted over 360 dialysis sessions. Sodium balance, blood pressure (BP), intradialytic ...
Schmidli Jürg - - 2007
Carotid sinus baroreceptors are involved in controlling blood pressure (BP) by providing input to the cardiovascular regulatory centers of the medulla. The acute effect of temporarily placing an electrode on the carotid sinus wall to electrically activate the baroreflex was investigated. We studied 11 patients undergoing elective carotid surgery. Baseline ...
Oates Daniel J - - 2007
OBJECTIVES: To determine the relationship between blood pressure (BP) and all-cause mortality in subjects aged 80 and older with hypertension. DESIGN: Retrospective cohort study with 5 years of follow-up. SETTING: Ten Veterans AFFAIRS (VA) sites. PARTICIPANTS: Four thousand seventy-one ambulatory patients aged 80 and older with hypertension. MEASUREMENTS: The outcome ...
Eguchi Kazuo - - 2007
BACKGROUND: It is unclear to what extent interarm blood pressure (BP) differences are reproducible vs the result of random error. The present study was designed to resolve this issue. METHODS: We enrolled 147 consecutive patients from a hypertension clinic. Three sets of 3 BP readings were recorded, first using 2 ...
Mancini Elena - - 2007
BACKGROUND: Automatic systems for stabilizing blood pressure (BP) during dialysis are few and only control those variables indirectly related to BP. Due to complex BP regulation under dynamic dialysis conditions, BP itself appears to be the most consistent input parameter for a device addressed to preventing dialysis hypotension (DH). METHODS: ...
Ferraris Jorge R - - 2007
While 24-h ambulatory blood pressure monitoring (ABPM) is an established tool for monitoring antihypertensive therapy in adults, data in children are scarce. We retrospectively analysed whether office blood pressure (BP) is reliable for the diagnosis of BP control in 26 treated hypertensive paediatric renal transplants. Controlled office BP was defined ...
Wieling Wouter - - 2007
Several studies have shown that standing up is a frequent (3-10%) trigger of loss of consciousness both in young and old subjects. An exaggerated transient BP (blood pressure) fall upon standing is the underlying cause. IOH (initial orthostatic hypotension) is defined as a transient BP decrease within 15 s after ...
Routledge Faye S - - 2007
BACKGROUND: Individuals who do not have a 10% to 20% reduction in blood pressure (BP) during the night are known as 'nondippers'. The cause of this nondipping phenomenon is not fully understood; however, there is a growing body of evidence linking a nondipping BP pattern with target organ damage. OBJECTIVE: ...
Atthobari Jarir - - 2007
AIM: In short-term studies, hormonal contraceptives (HC) have been suggested to induce a rise in blood pressure (BP) and urinary albumin excretion (UAE), while the effect of HC in renal function (GFR) is still under debate. Data on long-term and withdrawal effects of HC use on these outcomes are, however, ...
Kim Jungsoo - - 2007
An individual's cardiovascular health is important. The measurement of blood pressure (BP) can be performed nonintrusively during normal daily activities. A study was designed to estimate systolic BP by measuring pulse arrival time (PAT) nonintrusively. PAT was obtained nonintrusively to estimate each individual's BP while he or she worked at ...
Taoka Makoto - - 2007
A 6-year-old girl had cold-like symptoms. Administration of antibiotics did not improve the symptoms, and the patient had chronic chest pain. Electrocardiogram (ECG) demonstrated ventricular tachycardia (VT) and cardiac enzyme levels were increased. Mexiletine and olprinone were continuously administered, but slow VT and III degrees A-V block repeatedly occurred. Pulse ...
Rodway George W - - 2007
The hemodynamic response to hypoxia may be influenced by exposure pattern and inducible biological signals, such as nitric oxide synthase (iNOS) expression. The systemic blood pressure (BP) and heart rate (HR) response to intermittent and continuous hypoxia (IH and CH) were examined as was the relationship between these responses and ...
Hoshide Satoshi - - 2007
It has been reported that masked hypertension, a state in which patients show normal clinic blood pressure (BP) but elevated out-of-clinic BP by self-measured home BP, is a predictor of cardiovascular morbidity much like sustained hypertension. In addition, nocturnal BP is closely associated with cardiovascular disease. This might mean that ...
Patel Hiren P - - 2007
Accurate dry weight assessment is difficult in pediatric hemodialysis patients but is essential to prevent chronic fluid overload, hypertension, and cardiovascular morbidity. A noninvasive monitoring (NIVM) of hematocrit-guided ultrafiltration algorithm was studied prospectively in 20 pediatric hemodialysis patients. The algorithm targeted the first 50% of total goal ultrafiltration to be ...
Beig Mirza Irfan - - 2007
INTRODUCTION: Seizures are accompanied by autonomic dysfunction which in turn influences cardiovascular variables. A method for simultaneous acquisition of electroencephalogram (EEG) and arterial blood pressure (BP) during seizures in conscious animals has not previously been described. METHODS: The effect of pentylenetetrazole (PTZ) was first studied on isolated rat atria. EEG ...
Ziaja Jacek - - 2007
BACKGROUND: Adrenal tumor excision in patients with Conn syndrome is not always followed by normalization of blood pressure (BP). The aim of the study was to determine predictors of persistent hypertension during long-term observation after adrenalectomy. MATERIALS AND METHODS: Thirty-one patients (23 F and 8 M) with Conn syndrome and ...
Moriya Hidekazu - - 2007
BACKGROUND: In haemodialysis (HD) patients, no consensus has been reached with regard to the desired blood pressure (BP) level and when or how BP should be monitored. Moreover, BP variability over a period of 1 week has not been well studied in HD patients. METHODS: The present study is an ...
Nawrot Tim S - - 2007
AIMS: Western Europeans have low blood levels of selenium (BSe), an antioxidant trace element. In a Flemish population, we investigated the cross-sectional and longitudinal association of blood pressure (BP) with BSe. METHODS AND RESULTS: We randomly recruited 710 subjects (mean age 48.8 years; 51.8% women). We measured BP and BSe ...
Kolovou Genovefa D - - 2007
We evaluated 62 exercise treadmill tests (ETTs) in equal numbers of heterozygous for familial hypercholesterolemia (hFH) and healthy (HLY) women, matched for age, baseline systolic and diastolic blood pressure (BP) and baseline heart rate (HR), using the Bruce protocol. Both groups had similar rate pressure product (RPP) and workload in ...
Dursun Hasan - - 2007
The aim of this study is to investigate the blood pressure (BP) profile, microalbuminuria, renal functions, and relations with remaining normal kidney size in children with unilateral functioning solitary kidney (UFSK). Sixty-six children with UFSK were equally divided into three groups: unilateral renal agenesis (URA), unilateral atrophic kidney (UAK), and ...
Davis, B. A. S.
The impact of the 8.2 ka cooling event during the Early–Mid Holocene has not been widely observed in Southern Europe, which in contrast to Northern Europe, was already experiencing a cooler than present climate at this time. Multi-proxy analysis of sediment cores from two closed-basin saline lakes in the Central ...
Garzoni D - - 2007
BACKGROUND: Intradialytic morbid events (IMEs, mostly hypotension) are frequent complications during hemodialysis (HD). This study investigated whether automatic feedback control via adjustment of the ultrafiltration rate reduces IME frequency. METHODS: In this multi-center cross-over study, 56 hypotension-prone patients were treated both with standard HD (sHD, applying a constant ultrafiltration rate) ...
Fava Cristiano - - 2007
OBJECTIVE: A common threonine481serine polymorphism (T481S) has been shown in vitro to strongly activate the chloride channel Kb (CLC-Kb) expressed in the kidney, and the 481S allele has been associated with human hypertension. The study aim was to evaluate the association of the T481S polymorphism with blood pressure (BP) levels ...
Stenehjem Aud-E - - 2007
This study aimed to assess blood pressure (BP) profile, BP control, left ventricular hypertrophy (LVH) and albumin/creatinine ratio (ACR) in urine after 5 years of antihypertensive treatment in subjects with newly diagnosed essential hypertension. Fifty-four subjects were included and prescribed calcium-channel blocker in monotherapy during an 8-week period, and later ...
Gjørup Pia Holland - - 2007
BACKGROUND: The mechanisms involved in development and maintenance of hypertension in obstructive sleep apnea (OSA) are not clarified. We hypothesize that patients with OSA have an abnormal nocturnal level of some vasoactive hormones during the night. METHODS: We studied 32 patients with OSA and 19 healthy control subjects during The ...
Hermida Ramón C - - 2007
Ambulatory blood pressure (BP) measurements (ABPM) correlate more closely with target organ damage and cardiovascular events than clinical cuff measurements. ABPM reveals the significant circadian variation in BP, which in most individuals presents a morning increase, small post-prandial decline, and more extensive lowering during nocturnal rest. However, under certain pathophysiological ...
Bang Lia E - - 2007
OBJECTIVE: The Losartan Intervention For Endpoint reduction in hypertension (LIFE) study showed that losartan-based treatment reduced risk of the composite endpoint of cardiovascular death, stroke and myocardial infarction compared with atenolol-based treatment in patients with hypertension and left ventricular hypertrophy with similar office blood pressure (BP) reduction. Our aim was ...
Kyriazis John - - 2007
BACKGROUND/AIMS: We investigated the way dialysate calcium (dCa) level can influence arterial stiffness (AS), measured by stiffness index (SI), a surrogate of pulse wave velocity, and reflection index (RI), a measure of the amount of pulse wave reflection, derived by digital volume pulse (DVP). METHODS: Fourteen hemodialysis (HD) patients underwent ...
Desideri Giovambattista - - 2007
BACKGROUND: Hypertensives with a blunted nocturnal blood pressure (BP) decrease have increased risk of developing atherosclerotic disease. Soluble CD40 ligand (sCD40L) is involved in the pathogenesis of risk factor-related vascular damage. Therefore, we evaluated the relationship between circulating sCD40L levels, circadian BP profile, and early carotid atherosclerosis in essential hypertensives. ...
Kubozono Takuro - - 2007
BACKGROUND: The brachial-ankle pulse wave velocity (baPWV) is used to evaluate the degree of atherosclerosis and arterial distensibility, but its major limitation is that it is affected by changes in blood pressure (BP) during measurement. Recently, a new atherosclerotic index, the cardio-ankle vascular index (CAVI), has been developed by measuring ...
Hegazy Aly Mohamad - - 2007
OBJECTIVES: To investigate the value of T-wave inversion after premature ventricular complexes (PVCs) for the prediction of hypertensive patients with a likelihood of ischemic heart disease (IHD). PATIENTS AND METHODS: Ambulatory 24-hour ECG, ambulatory 24-hour blood pressure (BP) recording, echocardiography, treadmill exercise ECG test and thallium-201 scintigraphy were performed for ...
Polyakov Vladimir - - 2007
STUDY DESIGN: A group of the examined patients with arterial hypertension comprised 412 persons, living under the conditions of the North and the moderate latitudes. 24-hour monitoring of blood pressure (BP) and echocardiography were used. Routine heliogeophysical monitoring was conducted. Heliogeophysical situation at early ontogenesis of the examined was evaluated. ...
Starr John M - - 2007
BACKGROUND: The relationship between blood pressure and cognition in old age remains unclear. Some data indicate that elevated blood pressure causes cognitive deficits whilst others show that lower early life mental ability predicts high blood pressure in adulthood. Longitudinal studies in which mental ability earlier in life is known are ...
Papandreou D - - 2007
BACKGROUND AND AIMS: Pediatric hypertension is urgently increasing in Greece. The purpose of this study is to record the prevalence of hypertension in schoolchildren and to relate dietary minerals to blood pressure (BP). METHODS AND RESULTS: 308 males and 298 females, aged 7-15 years, from 10 schools in Northern Greece ...
Kishimoto Aya - - 2007
OBJECTIVE: Arterial oxygen saturation (SpO2) in volunteers had been previously investigated, and the possibility that a decrease in SpO2 leads to an increase in blood pressure (BP) in airline passengers experiencing oxygen desaturation at high altitudes was reported. It was also shown that mean nocturnal SpO2 was lower in subjects ...
Shankar R Ravi - - 2007
BACKGROUND: Variations in the Y chromosome have shown significant, albeit inconsistent, associations with hypertension in men. Studies of peripubertal subjects might reveal more information on the origins of the Y chromosome's influence on blood pressure (BP). In the current study, we examined the association of a HindIII restriction site on ...
Tamura Kouichi - - 2007
Evidence suggests a relationship between short-term blood pressure (BP) variability and cardiovascular target-organ damage. Although a blunted nocturnal decrease in BP and reduced heart rate variability have been shown to be associated with cardiovascular morbidity in diabetic patients, little information is available on short-term BP variability. In this study, short-term ...
Nilsson Peter M - - 2007
OBJECTIVE: Rosiglitazone (RSG) has been reported to reduce blood pressure (BP) in patients with type-2 diabetes, but similar effects in non-diabetic people with insulin resistance is less clear. Our aim was to test the long-term BP-lowering effects of RSG compared with placebo. METHODS: We recruited participants for BP evaluation of ...
Bondia-Pons Isabel - - 2007
We evaluated the effects of a moderate consumption of olive oil on lipid profile, BMI, and blood pressure (BP) in a group of 160 healthy men from non-Mediterranean regions [Northern Europe (n = 50; Finland and Denmark) and Central Europe (n = 60; Germany)] and Mediterranean regions [Southern Europe (n ...
Agyemang Charles - - 2007
BACKGROUND: Evidence strongly suggests that the neighbourhood in which people live influences their health. Despite this, investigations of ethnic differences in cardiovascular risk factors have focused mainly on individual-level characteristics. The main purpose of this study was to investigate associations between neighbourhood-level environmental stressors (crime, housing density, nuisance from alcohol ...
Schreuder M F - - 2007
Blood pressure (BP) is a frequently monitored parameter in research. Various methods are used to obtain BP values in animal models, but telemetry is the method of choice because it allows for continuous monitoring in conscious and freely moving animals. However, factors due to the animal facility, like activities and ...
White William B - - 2007
Ambulatory blood pressure (BP) monitoring has matured into a useful methodology that obtains automated measurements of brachial artery BP during a 24-hour period. Cardiovascular outcomes in the treated patient with hypertension are often better predicted by ambulatory BP than by office pressures. Consensus guidelines have advocated lower goals of treated ...
Hayashi Tomohito - - 2007
OBJECTIVE: The basal blood pressure (BP) is more intimately related to hypertension severity than casual BP. BP values obtained by ambulatory blood pressure monitoring (ABPM) tend to be influenced by patients' physical activity because values are not always obtained with the patient at rest. The purpose of this study was ...
Bendini C - - 2007
There is bulk of evidence suggesting that blood pressure dysregulation, as low blood pressure (LBP) or hypotension, orthostatic hypotension (OH) and high blood pressure (HPB) or hypertension are associated with alterations in cognitive and emotional domains. Some studies suggest that LBP, neurocardiovascular instability, like the OH, and atherosclerosis resulting from ...
Rey Evelyne E Internal Medicine Service, Department of Obstetrics and Gynaecology, CHU Sainte-Justine and Université de Montréal, Montréal, Canada. - - 2007
To explore the difference between office and home blood pressure (BP) monitoring in normotensive and hypertensive pregnant women. We compared the mean of 1 week home BP with office BP, measured by aneroid devices, in 20 normotensive women (68 BP assessments) and 100 women with mild essential chronic hypertension without ...
Wilton Anja A Maternal and Fetal Health Research Unit, Division of Reproduction and Endocrinology, King's College London School of Medicine at Guy's, King's College and St. Thomas' Hospital, London, - - 2007
To compare MaM technology with current methods of assessing blood pressure (BP) over time on the obstetric day unit. It is recommended that the average of repeated measures is used to confirm hypertension in pregnancy. The Microlife 3AC1 is a validated oscillometric device featuring "MaM" mode using the average of ...
Shaltis Phillip A PA Department of Mechanical Engineering at the Massachusetts Institute of Technology, Cambridge, MA 02139, USA. - - 2007
Traditional circumferential oscillometric blood pressure measurements are based on a complex interplay between the perturbed underlying artery and the surrounding tissue. When there is a balance in pressures acting across the arterial wall, the pulsation amplitude is expected to be a maximum. The purpose of this study was to examine ...
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