Search Results
Results 351 - 400 of 1378
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Pickering Thomas - - 2003
An international database of prospective studies of ambulatory blood pressure monitoring was set up in 2001, and will include at least eight individual studies. The goals are to enable analyses that cannot be made reliably from the individual studies, such as the predictive value of different measures of blood pressure, ...
White William B - - 2003
Ambulatory blood pressure monitoring (ABPM) is a highly useful diagnostic tool as it can detect non-dipping and can distinguish masked hypertension, white-coat hypertension and sustained hypertension. Furthermore, measurement of blood pressure using ABPM has greater prognostic strength than single clinic blood pressure measurements. The Systolic Hypertension in Europe study, for ...
Mancia Giuseppe - - 2003
The ultimate goal when treating high blood pressure is to reduce the incidence of end-organ damage and prevent cardiovascular disease, and thus reduce the incidence of premature death. Cuff blood pressure measurements have some prognostic value and have traditionally been used to predict the risk of end-organ damage. Such measurements, ...
Ernst Michael E - - 2003
Noninvasive, 24-hour ambulatory blood pressure monitoring (ABPM) has evolved over the past 25 years from a novel research tool of limited clinical use into an important and useful modality for stratifying cardiovascular risk and guiding therapeutic decisions. Early clinical uses of ABPM were mostly focused on identifying patients with white-coat ...
Hayes Melinda M - - 2003
Advancements in electronic data acquisition have translated into improved monitoring of victims of cardiac arrest, but initial techniques remain direct observation of pulses and respirations. The most essential monitor continues to be the electrocardiogram. However, monitoring diastolic blood pressure, myocardial perfusion pressure, and end-tidal carbon dioxide are extremely useful. Most ...
Marchiando Rod J - - 2003
Although the percentage of patients who are treated for hypertension has increased, the percentage of those who demonstrate control of blood pressure has declined. As a result of this trend, clinicians may increasingly rely on ambulatory blood pressure monitoring to improve the diagnosis and treatment of hypertension. Studies confirm that ...
Oya S - - 2003
Near-infrared spectroscopy (NIRS) that requires few compact instruments is a non-invasive and continuous method of monitoring haemodynamics in living organs. To assess the feasibility of using NIRS in evaluating the udder haemodynamics in six dairy cows, a probe component consisting of a light-emitting diode and a phototransistor was attached to ...
Mulè Giuseppe - - 2003
The aim of our study was to analyze, in a group of 296 essential hypertensives, the relationship between left ventricular mass (LVM) and ambulatory white coat effect (WCE); that is the difference between the elevation of the first measurements of ambulatory blood pressure monitoring and the mean daytime pressure. The ...
Verdecchia Paolo - - 2003
Over the past decade, several prospective outcome studies have demonstrated that ambulatory blood pressure measurements provide a better prediction of major cardiovascular events compared with clinic blood pressure measurements. This review summarizes the advantages of ambulatory blood pressure over clinic blood pressure to predict outcome in untreated and treated hypertensive ...
O'Brien Eoin - - 2003
The traditional technique of blood pressure measurement is being phased out in most countries and is being replaced by automated measurement. The era of automated blood pressure measurement brings its own problems, not least being the need to evaluate blood pressure measuring devices independently for accuracy. Towards this end, the ...
Contin Manuela - - 2003
The authors performed 72-hour polysomnography, including a levodopa-placebo-controlled choice reaction time test with continuous monitoring of cardiovascular variables in two patients with Parkinson's disease complaining of excessive daytime sleepiness on levodopa monotherapy. The subacute levodopa challenge was accompanied by physiologic sleep episodes, worsened reaction times, and a reduction in mean ...
Bishop George D - - 2003
The demand-control model for coronary heart disease was tested using ambulatory blood pressure monitoring. Male patrol officers (N = 118) wore ambulatory blood pressure monitors during 1 of their day shifts with readings taken every 30 min. Following each reading, officers completed a questionnaire using a handheld computer. Significant interactions ...
César Calvo-Vargas - - 2003
OBJECTIVE: To compare the correspondence between the loaned self-measurement equipment model (LSEM), 24 h awake ambulatory blood pressure monitoring (ABPM) and clinic blood pressure (CBP). DESIGN: A cross-sectional study was carried out involving 90 hypertensive and normotensive subjects. METHODS: We used a variation of home measurement, the loaned self-measurement equipment ...
Lederbogen Florian - - 2003
BACKGROUND: Neuroendocrine dysregulation and disturbed sleep, frequently seen in major depression, may interfere with circadian blood pressure regulation. DESIGN AND METHODS: Using a portable device, 24 h blood pressure profiles were registered in 69 depressed in-patients and 26 hospitalized, non-depressed comparison subjects. The use of antihypertensive medication was considered to ...
Boon Diederik - - 2003
The reported prevalence of silent cardiac ischemia as assessed by ambulatory electrocardiographic recording varies widely. The influence of the stringency of the analysis criteria has never been reported. We performed 24-hour, 12-lead ambulatory electrocardiographic recording in patients with hypertension but without proven coronary artery disease. The recordings were analyzed according ...
Uen Sakir - - 2003
Silent myocardial ischemia is defined as an ischemic episode without chest pain but with transient ST abnormalities during stress testing or Holter monitoring. With Holter monitoring the prevalence of silent myocardial ischemia in hypertensive patients without coronary artery disease is between 25% and 73%. Simultaneous recording of ambulatory 24-h ECG ...
Drews, Frank; Westenskow, Dwayne ...
"Human error" in anesthesia can be attributed to misleading information from patient monitors or to the physician’s failure to recognize a pattern. A graphic representation of monitored data may provide better support for detection, diagnosis, and treatment. We designed a graphic display to show hemodynamic variables. Twenty anesthesiologists were asked ...
Llisterri José Luis - - 2003
AIMS: To establish the validity and clinical value of home blood pressure measurements (HBPM) in the treatment follow-up of patients with essential hypertension to rule out or to confirm poor control of blood pressure obtained in the doctor's office with a mercury sphygmomanometer. MATERIAL AND METHODS: Observational, cross-sectional study was ...
Omvik Per - - 2003
OBJECTIVES: To evaluate the use of ambulatory blood pressure monitoring in comparison with home and office blood pressure in every-day general practice. METHODS: In a multicenter survey sixty-two practitioners previously unfamiliar with ambulatory blood pressure monitoring performed a total of 1162 (mean 18 +/- 16; range 3-94) 24-h ambulatory- and ...
Verberk W J - - 2003
The Home versus Office MEasurements, Reduction of Unnecessary treatment Study (HOMERUS) is a multicentre prospective study, primarily designed to examine in subjects with mild to moderate hypertension whether treatment decisions based on home blood pressure measurements can lead to reduction in the use of antihypertensive drugs and the associated costs, ...
Orbetzova Maria M - - 2003
INTRODUCTION: Polycystic ovary syndrome (PCOS) is associated with higher risk of developing cardiovascular diseases including higher incidence of hypertension later in life. Absence of circadian blood pressure fluctuations is considered as a marker of pre-hypertensive state and correlates highly with target organ damage in hypertension. AIM: Characterization of the circadian ...
Gerin William - - 2002
BACKGROUND: Automatic blood pressure monitoring conducted at home is increasingly used in the diagnosis and management of hypertension. We assessed the adequacy of existing British Hypertension Society (BHS) and Association for the Advancement of Medical Instrumentation (AAMI) validation standards for automatic blood pressure monitoring devices. SUBJECT AND METHODS: A theoretical ...
Kamarck Thomas W - - 2002
Ambulatory blood pressure (ABP) has been shown to have independent prognostic value, over and beyond the effects of clinic blood pressure (CBP) measures. We have examined the role of psychosocial demands in understanding ABP, using an electronic diary to measure ongoing experience in the field at the time of each ...
Landsbergis Paul A - - 2002
Job design risk factors for hypertension and heart disease have often been assessed by the Job Content Questionnaire (JCQ). Job characteristics are typically assessed only once, however, which can result in misclassification and bias results toward the null. Newer approaches, which assess job characteristics over a working life, are hampered ...
Bachmann Lucas M - - 2002
Increasingly, patients measure and record their home blood pressure. However, the accuracy with which they report their readings to their physicians is largely unknown. The authors assessed the accuracy and quality of self-reported home blood pressure values in an ambulatory managed care population. Forty-eight hypertensive outpatients were randomly allocated to ...
Pomeranz Avishalom - - 2002
Ambulatory blood pressure monitoring (ABPM) was performed in 29 children, ages 8.5-10.5 years (mean 11.6+/-3.0) with isolated haematuria (IH) and in 27 age, sex, weight and height matched healthy controls (C). Isolated haematuria was defined as >or=5 RBC/HPF on three separate urinalyses over a 3-month period with normal renal function, ...
Harshfield Gregory A - - 2002
BACKGROUND: Black individuals are characterized by a blunted nocturnal decline (i.e. dipping) in blood pressure compared with whites. The resulting increase in cardiovascular load has been hypothesized to contribute to ethnic differences in hypertension and its sequelae. OBJECTIVE: To examine data from two different locations and determine factors related to ...
Palatini Paolo - - 2002
Ambulatory blood pressure monitoring (ABPM) can be considered a major achievement in clinical medicine. However, its superiority over traditional clinical measurement has often been overemphasized in the literature. In both cross-sectional and longitudinal studies, ABPM has been compared with clinical blood pressure calculated from only a few readings taken over ...
Stergiou George S - - 2002
OBJECTIVE: Recent evidence suggests that pulse pressure (PP) is an independent predictor of cardiovascular risk. The objective of this study was to compare mean values and reproducibility of PP obtained in the clinic (CPP), at home (HPP) and with ambulatory monitoring (APP) and to evaluate potential implications for trials aiming ...
Covic Adrian - - 2002
Ambulatory blood pressure monitoring has been steadily growing in popularity as equipment becomes more accurate, affordable, and patient-friendly. In addition, software packages are more powerful and physician-customizable, and more physicians are accepting of ambulatory blood pressure monitoring's advantages. Summarizing the studies that deal mainly with hemodialysis patients, there are clear ...
Westerhof Berend E - - 2002
BACKGROUND Twenty-four-hour finger arterial pressure (FAP) recordings show a negative bias against intrabrachial artery pressure (BAP) and the bias is greater during the night, thereby overestimating the nocturnal blood pressure dip. We have available a methodology with which to reconstruct BAP from FAP by waveform filtering (transfer function) and generalized ...
Bertinieri Giovanni - - 2002
OBJECTIVE: Ambulatory blood pressure in the elderly has been studied in the past, the age range most frequently examined being 65 to 80 years. The present study was aimed at determining 24-h blood pressure means and profile in centennial human beings. PATIENTS AND METHODS: Sphygmomanometric blood pressure (average of three ...
Strachan M W J - - 2002
AIMS: The British Hypertension Society (BHS) has recommended that, for people with diabetes, the target 'clinic' blood pressure should be < 140/80 mmHg. Ambulatory monitoring of blood pressure (ABPM) is used widely in the assessment of hypertension and the BHS has recommended that the target 'awake' ambulatory blood pressure for ...
Hayashi Yoshihito - - 2002
In recent years, many growth factors and cytokines have been shown to be related to arteriosclerosis, and hepatocyte growth factor (HGF) has been reported to be associated with hypertension. In the present study, we investigated the relationship between HGF and hypertension by measuring the serum HGF concentration and performing 24-h ...
Hermida Ramón C - - 2002
OBJECTIVES: The goal of this study was to test and quantify the extent and duration over time of a possible pressor effect due to ambulatory monitoring. BACKGROUND: The use of ambulatory blood pressure monitoring has provided a method of blood pressure (BP) assessment that compensates for some of the limitations ...
Little Paul - - 2002
To assess alternatives to measuring ambulatory pressure, which best predicts response to treatment and adverse outcome. Three general practices in England. Validation study. Participants: Patients with newly diagnosed high or borderline high blood pressure; patients receiving treatment for hypertension but with poor control. Overall agreement with ambulatory pressure; prediction of ...
Kamarck Thomas W - - 2002
BACKGROUND: Ambulatory blood pressure assessments have been shown to be associated with subclinical and clinical endpoints even after controlling for the effects of clinic blood pressure. OBJECTIVE: To examine the incremental validity of ambulatory over clinic blood pressures using equivalent time periods, equivalent numbers of observations, and comparable measurement instruments ...
Cheng Cynthia - - 2002
Self-monitoring of blood pressure actively involves patients in hypertension management. However, the usefulness of self-monitoring of blood pressure may be limited by inaccurate patient reporting. The study objective was to assess reliability of patient blood pressure reporting over 6 months. Forty-nine subjects with Joint National Committee stage 1 or 2 ...
McGrath Barry P - - 2002
End-organ damage associated with hypertension is more closely related to ambulatory blood pressure (ABP) than clinic or casual blood pressure measurements. ABP measurements give better prediction of clinical outcome than clinic or casual blood pressure measurements. The technique of ABP monitoring (ABPM) is specialised; validated monitors and appropriate quality control ...
Seo Wha Sook - - 2002
The purpose of this study was to compare the circadian blood pressure and heart rate rhythm of dippers and non- dippers. Biochemical and clinical characteristics of dippers and non-dippers were also compared to determine whether non-dippers have an increased prevalence of hypertension- related conditions. The subjects were 123 out-patients with ...
Pavek Karel - - 2002
The long-term true blood pressure, estimated in terms of the repeatable 24 h ambulatory mean (24 hAmb) pressure, is probably best related to progressive cardiovascular deterioration and is vital for clinical decision-making. Serial self-measurements (SELF) under quiet conditions may reflect this level, but with an annoying uncertainty in individual patients. ...
Hermida Ram?n C - - 2002
BACKGROUND: The lack of nocturnal decline in blood pressure has been associated with an increase in end-organ damage and cardiovascular events, although results remain controversial, partly because of the inability to reproduce correctly, over time, the classification of patients into dippers and non-dippers. Moreover, the non-dipping status has been frequently ...
Olsen Roy - - 2002
BACKGROUND: Due to large beat-to-beat blood pressure variation the use of 24-h ambulatory blood pressure monitoring in patients with atrial fibrillation has been questioned. METHODS: Repeatability and variability of 24-h ambulatory blood pressure (Accutraccer II or Diasys Integra), and daily blood pressure variation was examined in 42 patients aged 51-81 ...
Jain Arun - - 2002
OBJECTIVE: To compare clinic and home blood pressures for use in classifying patients in relation to a recent guideline for the diagnosis of hypertension. METHODS: Fifty patients were studied and classified on the basis of clinic pressures, using the Joint National Committee VI criteria, into the categories of normal, high-normal ...
Grant Igor - - 2002
OBJECTIVE: To determine the extent to which the chronic stress of Alzheimer's disease caregiving may be alleviated by placement or death of the Alzheimer's disease patient, we prospectively compared groups of caregivers (CG) who continued to care for their Alzheimer's disease spouse at home, CG who placed their spouses, and ...
Leary Andrew C - - 2002
OBJECTIVE: To define the influence of morning physical activity levels on the magnitude of the morning surge in blood pressure and heart rate. DESIGN AND METHODS: Blood pressure and physical activity were simultaneously recorded in 420 patients by 24-h monitor and actigraphy. The morning surge was defined as the difference ...
Ernst Michael E - - 2002
During the last 25 years, 24-hour noninvasive ambulatory blood pressure monitoring (ABPM) has evolved from a research tool of limited clinical use into an important tool for stratifying cardiovascular risk and guiding therapeutic decisions. Until recently, clinical use of ABPM focused on identifying patients with white-coat hypertension, but accumulated evidence ...
Goldman A G - - 2002
An argument can be made for modifying the recommendation in the sixth report of the Joint National Committee for Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC VI) for the measurement of blood pressure. If the blood pressure is taken in the erect position immediately after the patient ...
Asnaghi M - - 2002
Intra-abdominal pressure monitoring is a very important parameter in the ICU setting, since pathological alterations of this value are significant and are responsible for functional alterations involving cardio-respiratory system, kidneys and central nervous system. Responsibility of the professional nurse in the ICU is to perform a tight and adequate monitoring ...
Ice Gillian H - - 2002
BACKGROUND: Some research suggests that individuals whose blood pressure does not decline at night may be at increased risk of end-organ damage. Few studies have examined ambulatory blood pressure among elders, particularly those living in institutions. This study therefore evaluates ambulatory blood pressure variation in two groups of institutionalized elderly, ...
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