Search Results
Results 201 - 250 of 1376
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Lenz Maria C S - - 2007
OBJECTIVE: Investigate the effect of distinguishing nighttime and sleep on nocturnal blood pressure results in ambulatory blood pressure monitoring. METHODS: We recruited 36 patients, 29 men, with suspected obstructive sleep apnea/hypopnea syndrome attending a sleep clinic for diagnostic polysomnography and who agreed to wear a Spacelabs 90207 ambulatory blood pressure ...
Sjölin-Israelsson Britt A - - 2007
OBJECTIVE: The purpose of this study was to elucidate whether ambulatory blood pressure (ABPM) performed during a work day and a non-work day had any impact on the night dipping profile. STUDY DESIGN: A crossover randomized ABPM study in primary healthcare was retrospectively analysed for the occurrence of non-dipping (ND), ...
McCaffery Jeanne M - - 2007
Background: Components of the metabolic syndrome are typically intercorrelated in epidemiologic studies and, when combined, predict type 2 diabetes and cardiovascular diseases. However, it remains unclear whether a single construct underlies the various components and which of the components are most closely associated with the underlying syndrome. Here, we use ...
Motoi K - - 2007
Daily monitoring of health condition at home is very important 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 developed a prototype room for fully automated monitoring ...
Takizawa Kenichi - - 2007
This paper presents a wireless vital sign monitoring system using IEEE802.15.4a standard based on ultra wideband (UWB) wireless communications. The vital signs are categorized into continuous and routine vital signs; the continuous signs include electrocardiogram (ECG), and the routine ones cover blood pressure, oxygen saturation, and body temperature. To conduct ...
Turgut Faruk - - 2007
Cardiovascular problems are a major cause of morbidity and mortality in patients with autosomal dominant polycystic kidney disease (ADPKD). Endothelial dysfunction (ED), which is an early manifestation of vascular injury, has been shown in patients with ADPKD. However, the association between ambulatory blood pressure and ED has not been investigated ...
De Waele J J - - 2007
INTRODUCTION: Intraabdominal hypertension (IAH) is increasingly appreciated by intensivists as an important cause of organ dysfunction, even at pressure levels which were previously thought to be harmless. Therefore, the goal of this review is to describe the different methods commonly used in clinical practice for intraabdominal pressure (IAP) measurement, the ...
Verberk Willem J - - 2007
To review the literature on home blood pressure measurement (HBPM), to examine its validity and applicability for clinical practice and to provide recommendations regarding HBPM assessment. HBPM can eliminate the white coat effect and offers the possibility to obtain multiple measurements under standardized conditions, which increases knowledge of overall blood ...
Barbeito Atilio - - 2006
Pressure monitoring systems influence the contour of the displayed wave-forms and, on occasion, can introduce significant artifact in the pressure traces. It is important to understand the technical details of invasive pressure monitoring to interpret better the information presented. Careful observation of the arterial pressure waveform can provide information about ...
Blanco Francisco - - 2006
OBJECTIVES: In middle-aged adults, vascular damage correlates better with ambulatory than with clinic blood pressure. This study aimed to determine whether vascular damage evaluated by carotid ultrasonography in the elderly is also more closely related to ambulatory than to clinic blood pressure, and which blood pressure variables are better associated ...
Cemri Mustafa - - 2006
OBJECTIVE: The aim of this study was to to determine possible daytime (awake hours) and nighttime (sleeping hours) LOAD limits for ambulatory pulse pressure (PP) and double product (DP) in hypertensive (HT) subjects and secondly to assess whether there were significant differences in the LOAD values between hypertensive (HT) and ...
Gerin William - - 2006
BACKGROUND: Ambulatory blood pressure is a better predictor of target organ damage and the risk of adverse cardiovascular events than office measurements. Whether this is due to the greater reliability owing to the larger number of measurements that are usually taken using ambulatory monitoring, or the greater validity of these ...
Ganushchak Lesya Y - - 2006
The Error-Related Negativity (ERN) is a component of the event-related brain potential (ERP) that is associated with action monitoring and error detection. The present study addressed the question whether or not an ERN occurs after verbal error detection, e.g., during phoneme monitoring. We obtained an ERN following verbal errors which ...
Shoemaker William C - - 2006
OBJECTIVES: The aim of this study was to compare a recently developed and improved noninvasive hemodynamic monitoring system with the conventional invasive monitoring by pulmonary artery catheterization (PAC) in acute emergency trauma patients. METHODS: In a large, university-run, inner city public hospital, we monitored 993 trauma patients noninvasively; 262 of ...
Ejaz A Ahsan - - 2006
BACKGROUND: Patients with Parkinson's disease frequently present with orthostatic hypotension, prompting testing with 24-h ambulatory blood pressure monitoring (ABPM). The aim of our study was to identify characteristic patterns of blood pressure changes present on ABPM in a series of patients with Parkinson's disease. METHOD: We retrospectively identified 13 patients ...
Zakopoulos Nikolaos - - 2006
BACKGROUND: We compared the sensitivity of office blood pressure and ambulatory blood pressure monitoring recordings in evaluating the effectiveness of antihypertensive treatment and identified factors related to inadequate blood pressure control among hypertensive stroke survivors. METHODS: Office blood pressure and ambulatory blood pressure monitoring measurements were performed at 120+/-30 days ...
Funahashi Jin - - 2006
OBJECTIVES: To investigate the economic consequences resulting from introduction of home blood pressure measurement in diagnosis of hypertension instead of casual clinic blood pressure measurement. METHODS: We constructed a decision tree model using data from the Ohasama study and a Japanese national database. The Ohasama study provided the prognostic value ...
Uallachain G Ni - - 2006
Ambulatory blood pressure measurement (ABPM) is a useful and important way of guiding clinical decisions in the diagnosis and treatment of hypertension. There has been little research on how ABPM is actually used in the community where hypertension is mainly diagnosed and managed. We aimed to review the use of ...
Vilaplana Josep M Gutiérrez - - 2006
Blood pressure measurement is the basis for the diagnosis, management, treatment, epidemiology and research of hypertension and the decisions affecting these aspects of hypertension will be influenced by the accuracy of measurement. Although blood pressure measurement is one of the most common clinical techniques, there are some factors affecting it, ...
Tartan Zeynep - - 2006
Metabolic syndrome (MS) and non-dipping hypertension both increase cardiovascular mortality. Although both clinical modalities share common pathophysiologic factors in their etiologies, previous studies did not find any association between them. We aimed to investigate the association between MS and non-dipping blood pressure by comparing different definitions of MS. One-hundred-thirty-two consecutive ...
Madin K - - 2006
Twenty four hour ambulatory blood pressure monitoring (24-H ABPM) plays an important part in the management of subjects with suspected and confirmed disorders of blood pressure regulation. This article reviews the prognostic significance of various aspects of the 24-H ABPM and describes the authors experience in Chesterfield. Over the course ...
Patterson Dean - - 2006
To test the non-inferiority of a single dose of tadalafil 20 mg compared with placebo with respect to 26-h mean ambulatory systolic and diastolic blood pressure in treated and untreated hypertensive subjects. A multicentre, randomized, double-blind, placebo-controlled crossover study in 114 subjects with hypertension (36 subjects on no therapy with ...
Verberk Willem J - - 2006
OBJECTIVE: To determine how many self-measurements of blood pressure (BP) should be taken at home in order to obtain a reliable estimate of a patient's BP. DESIGN: Participants performed self blood pressure measurement (SBPM) for 7 days (triplicate morning and evening readings). In all of them, office blood pressure (three ...
Martínez María A - - 2006
OBJECTIVES: (1) To assess whether home blood pressure measurement is a reliable alternative to ambulatory blood pressure monitoring for the evaluation of treated patients with inadequate blood pressure control at the clinic; and (2) to evaluate the relationship between home blood pressure and several target-organ damage markers. BASIC METHODS: A ...
Uen Sakir - - 2006
INTRODUCTION: The objective of the present study was to investigate the prevalence, the risk factors, the hemodynamic triggering mechanisms, the circadian variability of ST segment depression (ST depression) and the effect of day and night fall in blood pressure on the prevalence of ST depression in hypertensive patients. MATERIALS AND ...
Leoncini Giovanna - - 2006
Increased arterial stiffness has been shown to predict cardiovascular mortality in patients with primary hypertension. Asymptomatic organ damage is known to precede cardiovascular events. We investigated the relationship between a recently proposed index of stiffness derived from ambulatory blood pressure (BP) and target organ damage in 188 untreated patients with ...
Graves John W - - 2006
Diagnosis of hypertension is critically dependent on accurate blood pressure measurement. "Accurate" refers to carefully following the guidelines for blood pressure measurement laid out for children and adults to minimize observer and subject errors that commonly occur in clinical blood pressure measurement. Accurate blood pressure measurement is more important in ...
Palmas Walter - - 2006
We studied whether ambulatory blood pressure monitoring added to office blood pressure in predicting progression of urine albumin excretion over 2 years of follow-up in a multiethnic cohort of older people with type-2 diabetes mellitus. Participants in the Informatics for Diabetes Education and Telemedicine study underwent a baseline evaluation that ...
Andrews F J - - 2006
The aim of monitoring patients is to detect organ dysfunction and guide the restoration and maintenance of tissue oxygen delivery. Monitoring is a crucial part of the care of the critically ill patient in the emergency department as the physiological response to critical illness is linked strongly to outcome. As ...
Kennedy Sean E - - 2006
OBJECTIVES: Hypertension in children may be defined by blood pressure elevated above the 95th percentile according to sex and age. Population data for ambulatory blood pressure provide different age-related and sex-related threshold limits to office-derived data. We sought to determine whether, when using ambulatory blood pressure monitoring in a clinical ...
Stenehjem Aud-E - - 2006
OBJECTIVE: As hypertension is an important risk factor for renal allograft failure, we aimed to assess blood pressure control in renal transplant patients with deteriorating graft function using different methods of blood pressure measurements. METHODS: Forty-nine patients with a graft survival of >1 year, and with more than a two-fold ...
Bishop George D - - 2006
BACKGROUND: Individuals showing less than a 10% decline in blood pressure at night ("nondippers") are known to be at increased risk for hypertension and other cardiovascular conditions. PURPOSE: This research tested the assertion by Räikkönen et al. (1) that nondippers show blunted cardiovascular responses to activities during daytime hours. METHODS: ...
Tsai Chuen-Jinn - - 2006
The effect of ambient relative humidity (RH) on hourly particulate matter (PM10) readings of beta-gauge monitors has been studied using two collocated monitors in the field. The inlet air of monitor 1 was conditioned with water vapor to increase its RH, whereas monitor 2 operated normally in ambient conditions. Experimental ...
Aboy Mateo - - 2006
Current indices used in the evaluation of antihypertensive treatment duration and homogeneity such as the trough-peak, smoothness index, and normalized smoothness index were designed to be applied to ambulatory blood pressure monitoring recordings from individual participants. Evaluation of antihypertensive treatment in populations is often carried out by calculating these individual ...
Dawes Martin G - - 2006
OBJECTIVES: To assess the prognostic value of daytime ambulatory blood pressure compared with routine clinic blood pressure in determining mortality. METHODS: Prospective multicentre study in 48 general practices in Oxfordshire, a hypertension clinic in Oxford and a hypertension clinic in London. RESULTS: A cohort of 10 129 patients from Oxford ...
Agarwal Rajiv - - 2006
PURPOSE OF REVIEW: Hypertension is an important risk factor for adverse cardiovascular and renal outcomes particularly in patients with chronic kidney disease. This review compares blood pressure measurements obtained in the clinic with those obtained outside the clinic to predict cardiovascular and renal injury and outcomes. RECENT FINDINGS: When home ...
Manning Gillian - - 2006
We examined how different methods and definitions of blood pressure affect the achievement of targets in general practice. There was a wide range in the proportion of treated patients achieving the different target levels recommended by the National Institute for Health and Clinical Excellence, British Hypertension Society and the general ...
Burn J - - 2006
The assessment of circadian blood pressure change by ambulatory blood pressure monitoring has potential as a predictor for cardiovascular events, but its evaluation is problematic due to the difficulty in defining day and night periods for individual subjects. The cumulative sums (cusums) method has the advantage of simplicity over mathematical ...
Moran Andrew - - 2006
Blood pressure strongly predicts microalbuminuria and later progression to renal failure in people with diabetes. Ambulatory blood pressure monitoring seems to be superior to office blood pressure in predicting progression to microalbuminuria in type 1 diabetes. The associations of ambulatory blood pressure with office blood pressure and microalbuminuria in type ...
Li Yan - - 2006
OBJECTIVES: We hypothesized that one minus the slope of diastolic on systolic blood pressure in individual 24-h ambulatory blood pressure recordings (ambulatory arterial stiffness index) might reflect arterial stiffness and predict cardiovascular mortality. METHODS: In volunteers and a population recruited in China, we studied concordance between ambulatory arterial stiffness index ...
Dolan Eamon - - 2006
OBJECTIVES: Increased arterial stiffness is associated with the development of cardiovascular disease and may even predict its development at an early stage. Increased pulse pressure is seen as a marker of increased arterial stiffness and can be readily measured by ambulatory blood pressure monitoring. We propose another surrogate measure of ...
Aboy Mateo - - 2006
We propose a new vector index for the statistical assessment of antihypertensive treatment duration and homogeneity from ambulatory blood pressure monitoring. We termed this approach for evaluating and comparing blood pressure coverage offered by antihypertensive drugs over 24 h as the reduction-duration-homogeneity index. The reduction-duration-homogeneity index is a three-component vector ...
Bayó Joan - - 2006
OBJECTIVE: To determine the diagnostic performance of home blood pressure self-monitoring in white-coat hypertension using a 3-day reading program. MATERIAL AND METHODS: One hundred and ninety nontreated patients recently diagnosed with mild-moderate hypertension, selected consecutively at four primary healthcare centers in the city of Barcelona, were included. Each patient underwent ...
Graves John W - - 2006
OBJECTIVES: Accurate blood pressure measurement is critical to successful clinical trials. Concerns about observer errors have led to the use of automated oscillometric devices without evidence that their performance is similar to that of trained observers. This study compares blood pressures obtained by trained observers and with an oscillometric device ...
Poelaert Jan - - 2006
Echocardiography has been evolving to play a pivotal role in hemodynamic management, both intraoperatively and at the bedside. A full assessment of hemodynamics necessitates the use of all of the options available on modern echocardiographs. This introductory review provides insight into three important issues of hemodynamic monitoring by echocardiography: evaluation ...
Plange N - - 2006
Systemic arterial hypotension, hypertension and altered ocular blood flow are known risk factors in glaucoma. In this study, 24-h ambulatory blood pressure monitoring was performed in patients with normal tension glaucoma (NTG) and controls to evaluate blood pressure variability. In all, 51 patients with NTG and 28 age-matched controls were ...
Kim Jung Soo - - 2006
Pulse arrival time (PAT) was measured non-intrusively to estimate each individual's blood pressure. Electrocardiogram (ECG) was measured with copper-coated electrodes and photoplethysmogram (PPG) was measured using a specially designed toilet seat apparatus. Non-intrusively measured PATs were compared with PATs measured by the standard method, and the results showed a good ...
Gerin William - - 2006
BACKGROUND: A limitation of blood pressure measurements made in the physician's office is the transient elevation in pressure seen in many patients that does not appear to be linked to target organ damage or prognosis. This has been labeled the 'white-coat effect' (WCE), computed as the difference between blood pressure ...
Mignini Mariano Alejandro - - 2006
INTRODUCTION: Invasive arterial blood pressure monitoring is a common practice in intensive care units (ICUs). Accuracy of invasive blood pressure monitoring is crucial in evaluating the cardiocirculatory system and adjusting drug therapy for hemodynamic support. However, the best site for catheter insertion is controversial. Lack of definitive information in critically ...
Misiunas D - - 2006
An algorithm for the burst detection and location in water distribution networks based on the continuous monitoring of the flow rate at the entry point of the network and the pressure at a number of points within the network is presented. The approach is designed for medium to large bursts ...
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