Search Results
Results 251 - 300 of 1376
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Jung Byung-Chun - - 2006
BACKGROUND: The presence of circadian variations in sympathetic outflow from the stellate ganglia is unclear. OBJECTIVES: The purpose of this study was to continuously record stellate ganglion nerve activity (SGNA) in ambulatory dogs. METHODS: We performed continuous 24-hour left (N = 3) or bilateral (N = 3) SGNA recordings in ...
Wetzels Gwenn E C - - 2006
BACKGROUND: Poor compliance with antihypertensive medication is assumed to be an important reason for unsatisfactory control of blood pressure. Poor compliance is difficult to detect. Each method of measuring compliance has its own strengths and weaknesses. The aim of the present study was to compare patient compliance with antihypertensive drugs ...
Mukkamala Ramakrishna - - 2006
Left ventricular ejection fraction (EF) is perhaps the most clinically significant index of global ventricular function. EF is measured in clinical practice via imaging methods such as echocardiography. However, these methods generally require a well-trained operator and expensive capital equipment. Thus, EF measurements are only obtained in the clinical setting ...
Ottaviani Cristina - - 2006
This study hypothesized that physiologically grounded patterns of hemodynamic profile and compensation deficit would be superior to traditional blood pressure reactivity in the prediction of daily-life blood pressure. Impedance cardiography-derived measures and beat-to-beat blood pressure were monitored continuously in 45 subjects during baseline and four tasks. Ambulatory blood pressure measures ...
Rodriguez-Roca Gustavo C - - 2006
To study the cost of the follow-up of hypertension in primary care (PC) using clinical blood pressure (CBP) and ambulatory blood pressure monitoring (ABPM), and to analyse the cost-effectiveness (CE) of both methods. Good control of hypertension was achieved in 8.3% with CBP (95% CI 4.8-11.8) and in 55.6% with ...
Krakoff Lawrence R - - 2006
Accurate diagnosis of hypertension and prognosis for future cardiovascular events can be enhanced through the use of 24-hour ambulatory blood pressure monitoring. It has been suggested that the use of ambulatory monitoring as a secondary screening for hypertension might be cost-effective. Many needed studies that are related to the calculation ...
Bilo Grzegorz - - 2005
An increased 24-h blood pressure variability, expressed as SD of 24-h average ambulatory blood pressure values, is associated with target organ damage and cardiovascular risk in hypertension, while a physiological nocturnal blood pressure fall has been associated with reduced cardiovascular risk. Nocturnal blood pressure fall, however, may contribute markedly to ...
Fagard R H - - 2005
Epidemiological studies suggest an inverse relationship between physical activity or fitness and blood pressure. In a meta-analysis of 44 randomized controlled intervention trials, the weighted net change in conventional systolic/diastolic blood pressure in response to dynamic aerobic training averaged -3.4/-2.4 mmHg (P < 0.001). The effect on blood pressure was ...
Manning Gillian - - 2005
PURPOSE OF REVIEW: Use of home blood-pressure monitoring is increasing but the technique and the equipment have limitations. We provide an overview of recent evidence in this rapidly evolving field. RECENT FINDINGS: Home blood-pressure monitoring is an acceptable method for screening patients for hypertension. There is increasing evidence supporting the ...
Samuels Joshua A - - 2006
Millions of children with attention deficit hyperactivity disorder (ADHD) are treated with stimulant medications. To evaluate cardiovascular risk, 24-h ambulatory blood pressure monitoring (ABPM) was performed on and off medication. Thirteen subjects underwent APBM both on stimulant therapy and placebo using a placebo-controlled, double-blind, randomized, cross-over design. After a 3-day ...
Gregg M Elizabeth Douglas - - 2005
Hemodynamic responses underlying blood pressure reactivity to laboratory stress are theoretically linked to cardiovascular pathophysiology. The present study investigated whether a vascular response predicted ambulatory pulse pressure, a known risk factor for cardiovascular disease. A new model of hemodynamic profile, previously developed by the authors, was applied to 24-h ambulatory ...
Eguchi Kazuo - - 2005
We report a case of a middle-aged man who suffered a cerebral infarction resulting from dissection of a vertebral artery associated with morning blood pressure surge. A 56-year-old man was transferred to our hospital with dizziness and vomiting in the early morning on a cold day in winter. He reported ...
Giordano Ugo - - 2005
We measured resting and exercise haemodynamics, as well as 24-hour ambulatory blood pressure, so as to study the influence on development of hypertension in children after repair of coarctation by either construction of a subclavian flap or end-to-end anastamosis. The patients in both groups were studied a mean time of ...
Katinas G S - - 2005
Several opinion leaders have monitored their blood pressure systematically a sufficient number of times a day for chronomic (time structural) analyses, from the time of encountering chronobiology until their death; they set an example for others who also may not wish to base treatment on single spotchecks in a health ...
Hermida Ramón C - - 2005
Previous results have indicated that valsartan administration at bedtime as opposed to on wakening improves the diurnal/nocturnal ratio of blood pressure without loss in efficacy and therapeutic coverage. We hypothesized that increasing this ratio could reduce microalbuminuria. We conducted a prospective, randomized, open-label, blinded endpoint trial on 200 previously untreated ...
Verberk Willem J - - 2005
The purpose of this research was to review the literature on home blood pressure measurement (HBPM) and to provide recommendations regarding HBPM assessment. Observational studies on HBPM, published after 1992, as identified by PubMed, EMBASE, and Cochrane literature searches were reviewed. Studies were selected if they met the following criteria: ...
Tripepi Giovanni - - 2005
BACKGROUND: The use of 24-hour ambulatory blood pressure monitoring is increasing in end-stage renal disease (ESRD) patients but the prediction power for cardiovascular complications of time-averaged ambulatory blood pressure components has been little investigated in these patients. METHODS: We analyzed the prognostic power of 24-hour ambulatory blood pressure monitoring for ...
Tsivgoulis Georgios - - 2005
OBJECTIVES: Nondipping pattern of nocturnal blood pressure is associated with silent ischemic cerebrovascular lesions and lacunar infarctions. In this case-control study, we aimed to evaluate the association of diurnal blood pressure variation with the occurrence of intracerebral hemorrhage. METHODS: Ambulatory blood pressure monitoring was performed at 21-28 days after ictus ...
Lehmkuhl L A A - - 2005
The accuracy and reproducibility of ambulatory blood pressure monitoring used in intervention and treatment studies is essential to assure the desired health outcomes. The reproducibility of ambulatory variables in pharmacological studies has been reported, however, the reproducibility of ambulatory blood pressure variables associated with exercise has not been reported. Thus, ...
Cuspidi Cesare - - 2005
BACKGROUND: The relationship between metabolic syndrome components, as defined by the Adult Treatment Panel III report, and ambulatory blood pressure in hypertensive patients has not been investigated to date. OBJECTIVE: To explore the relation between metabolic syndrome components ambulatory blood pressure levels and blood pressure day/night variations in a large ...
Graves John W - - 2005
OBJECTIVE: To assess the ability of limited ambulatory blood pressure monitoring as a valid replacement for office blood pressure measurement done to American Heart Association criteria in diagnosing hypertension. METHODS: In all, 105 adults, who had been referred for limited ambulatory blood pressure monitoring, participated in the study. Limited ambulatory ...
Chaves Hilton - - 2005
A limited reproducibility has been ascribed to 24-h ambulatory blood pressure monitoring, especially in relation to the dipper and nondipper phenomena. This study examined the reproducibility of 24-h ambulatory blood pressure monitoring in three recordings of pressure at intervals of 8-15 days in 101 study participants (73% treated hypertensive patients) ...
Leitão Cristiane B - - 2005
OBJECTIVE: To evaluate the 24-h blood pressure profile in normoalbuminuric type 2 diabetic patients. RESEARCH DESIGN AND METHODS: A cross-sectional study was conducted in 90 type 2 diabetic patients with a urinary albumin excretion rate (UAER) <20 microg/min on two occasions, 6 months apart (immunoturbidimetry). Patients underwent clinical and laboratory ...
Dolan Eamon - - 2005
The purpose of this study was to determine if ambulatory blood pressure measurement predicted total and cardiovascular mortality over and beyond clinic blood pressure measurement and other cardiovascular risk factors; 5292 untreated hypertensive patients referred to a single blood pressure clinic who had clinic and ambulatory blood pressure measurement at ...
van der Steen Marijke S - - 2005
OBJECTIVE: To study the experiences and complaints of patients who underwent 24 h blood pressure monitoring. METHODS: Two groups of hypertensive patients of a tertiary outpatient clinic were asked to fill in a nine-item questionnaire about the side effects of ambulatory blood pressure monitoring (ABPM). The first group (n=75) used ...
Guthmann Richard - - 2005
The best return visit interval to achieve blood pressure control is currently unknown. This study investigates the relationship between return visit interval and percent change in blood pressure. We reviewed a cohort of hypertensive patient charts from two large, urban family practice offices. Four hundred twenty-nine patients with 7910 intervals ...
Stergiou George S - - 2005
OBJECTIVE: To evaluate the reproducibility of blood pressure measured at home (HBP) in comparison with ambulatory (ABP) and clinic blood pressure (CBP) in children and adolescents. PARTICIPANTS AND METHODS: Individuals aged 8-17 years who had been referred for elevated CBP were included. CBP was measured at two visits, HBP on ...
Brooks A J - - 2005
BACKGROUND: According to recommendations, intraabdominal pressure should be monitored every 8 hours for patients at high risk of abdominal compartment syndrome. Continuous intraabdominal pressure monitoring may be valuable for these patients. METHODS: For 15 patients undergoing laparoscopic surgery, a pressure monitor was introduced after formation of pneumoperitoneum. During the procedure, ...
Ben-Dov Iddo Z - - 2005
OBJECTIVE: Blood pressure dipping pattern has clinical and prognostic consequences. However, reproducibility of night-time blood pressure fall during 24-h ambulatory blood pressure monitoring is considered limited. This limited reproducibility is possibly a result of inadequate day-night definitions. We retrospectively examined the reproducibility of blood pressure dipping in clinical practice, applying ...
Martínez-Rey C - - 2005
Hypertension is a frequent cardiovascular risk factor in liver transplant recipients. The usefulness of ambulatory blood pressure monitoring (ABPM) in these patients is unknown. This study was aimed at evaluating the circadian rhythms of blood pressure in liver allograft recipients. In 53 liver transplant patients blood pressure was measured with ...
Carney Shane - - 2005
BACKGROUND AND AIM: The relative roles of self and ambulatory blood pressure monitoring (self BPM, ABPM, respectively) have yet to be clearly defined despite accumulating evidence of self BPM benefits, particularly in hypertension management. In particular, measurements comparable to ABPM have been documented with self-measurement, usually twice daily over one ...
Giles Thomas - - 2005
Ambulatory blood pressure monitoring enables the recording of the circadian rhythm of blood pressure under everyday circumstances, with the majority of individuals displaying diurnal variations in both systolic and diastolic blood pressures. During sleep, blood pressure in most people is between 10% and 20% lower than the mean daytime value. ...
Goyal Deepak - - 2005
Ambulatory blood pressure monitoring has established its use in the definition of white coat hypertension and monitoring of treatment of essential hypertension. Any role for ambulatory blood pressure monitoring in heart failure is not well defined. However, from the limited studies available, ambulatory blood pressure monitoring may be used to ...
Davis P D - - 2005
The performance of five units of the A&D UA-767 NIBP monitor and five units of the Welch Allyn Spot Vital Signs noninvasive blood pressure monitor was evaluated with the Biotek BP Pump blood pressure simulator under a variety of conditions. Using the simulator to provide a normal blood pressure waveform ...
Steptoe Andrew - - 2005
OBJECTIVE: Chronic psychosocial stress has been associated cross-sectionally with ambulatory blood pressure and with salivary cortisol, but there have been few longitudinal studies of the effects of changes in chronic stress. We assessed the influence of changes in financial strain on ambulatory blood pressure and salivary cortisol. METHODS: Data were ...
Mena Luis - - 2005
OBJECTIVES: This study presents a reliable index inspired by the total variability concept of real analysis in mathematics, called average real variability (ARV), for the prognostic significance of blood pressure variability (BPV) overcoming the pitfalls of the commonly used standard deviation (SD). BACKGROUND: Recent studies have suggested that an increase ...
Finkielman Javier Daniel - - 2005
BACKGROUND: Differences between the antihypertensive responses to drug therapy measured by office blood pressure (OBP) and ambulatory blood pressure monitoring (ABPM) techniques have been noted but rarely analyzed. We studied whether the OBP and 24-h ABPM responses to hydrochlorothiazide differ and, if so, the relevance of these differences. METHODS: The ...
Nussinovitch Naomi - - 2005
BACKGROUND: Familial dysautonomia (Riley Day syndrome) is a genetic disease. The present study of 24-hour ambulatory blood pressure monitoring in children with familial dysautonomia was carried out to investigate the pattern of blood pressure in this syndrome. OBJECTIVE: To the best of our knowledge, this is the only description of ...
Weindling A Michael - - 2005
The paper by Dannevig et al. in this issue of Acta Paediatrica carefully compares the agreement between blood pressure measurements made by three non-invasive blood pressure monitors with those made from an indwelling intra-arterial catheter. Non-invasive blood pressure monitoring is not particularly accurate for making measurements in neonates and generally ...
Gerin William - - 2005
BACKGROUND: Effects of catastrophic stress on blood pressure are well documented, but usually few measurements were taken before the event occurred, and the people studied were directly involved or geographically close to the disaster. The impact of the 11 September 2001 (9/11) attacks in New York City had far greater ...
Wallace Janet P - - 2005
OBJECTIVES: The reproducibility of blood pressure variables from ambulatory blood pressure monitoring (AMBP) initiated at the same time of day (SAME: 1700-1900 h) was compared with the reproducibility of blood pressure variables when monitoring was initiated at opposite times of day (OPP: randomized, morning=0700-0900 h and evening=1700-1900 h). It was ...
Wang Wen-Xing - - 2005
AIM: To propose a new, non-invasive method for monitoring 24-h pressure, temperature and pH value in gastrointestinal tract. METHODS: The authors developed a miniature, multi-functional gastrointestinal monitoring system, which comprises a set of indigestible biotelemetry capsules and a data recorder. The capsule, after ingested by patients, could measure pressure, temperature ...
Tanaka Shinobu - - 2005
Daily monitoring of health condition at home is very important subject not only as an effective scheme for early diagnosis and treatment of cardiovascular and other diseases, but also for prevention and control of such diseases. From this point of view, we have been developing a fully automated "non-conscious" monitoring ...
Sakaguchi Kazuhiko - - 2005
To investigate the relationship between the blood pressure control level and cardiovascular risk in type 2 diabetic patients, we evaluated home blood pressure, office blood pressure, biochemical data, and carotid echographic and echocardiographic findings in 148 patients with type 2 diabetes. According to the criteria for hypertension in the guidelines ...
Hassler Christopher - - 2005
The management of hypertensive patients usually ignores or gives little credit to the biologic rhythms inherent to the disease process and their potential clinical implications. The development of ambulatory blood pressure monitoring and the rapidly growing popularity of home blood pressure measurements by patients have now generated a series of ...
Beckett Linda - - 2005
Increasing evidence suggests that ABPM more closely predicts target organ damage than does clinic measurement. Future guidelines may suggest ABPM as routine in the diagnosis and monitoring of hypertension. This would create difficulties as this test is expensive and often difficult to obtain. The purpose of this study is to ...
Pinsky Michael R - - 2005
Hemodynamic monitoring is a central component of intensive care. Patterns of hemodynamic variables often suggest cardiogenic, hypovolemic, obstructive, or distributive (septic) etiologies to cardiovascular insufficiency, thus defining the specific treatments required. Monitoring increases in invasiveness, as required, as the risk for cardiovascular instability-induced morbidity increases because of the need to ...
Kistner Anna - - 2005
We have studied 24-h ambulatory blood pressure and kidney function in three groups of adult women: (1) born full term but with birth weights below the 3rd percentile for gestational age (n =18), (2) born preterm before gestational week 33 (median birth weight 1,250 g, range 950-2,040 g) (ex-preterm, n ...
Den Hond Elly - - 2004
OBJECTIVE AND METHODS: In this randomized clinical trial, conducted in 400 hypertensive patients [sitting diastolic blood pressure (DBP) >95 mmHg], blood pressure-lowering therapy was adjusted in a stepwise manner, either on the basis of the self-measured DBP at home or on the basis of conventional DBP measured at the doctor's ...
Stergiou George S - - 2004
Office and out-of-office blood pressure measurements are being used for the diagnosis of hypertension in children and adolescents. The US National Heart, Lung, and Blood Institute have recently presented a new classification of blood pressure. On the basis of office measurements the 90th, 95th and 99th percentile for gender, age ...
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