OBJECTIVE: A growing body of research indicates that defensive personality styles (in particular, self-deception) may be related to higher resting blood pressure and stress reactivity levels. This study is the first, however, to examine the value of defensiveness as a prognostic indicator for the development of clinical hypertension. METHODS: Participants ...

BACKGROUND: Achievement of a controlled blood pressure and improvement of cardiovascular risk profile are the mainstays of therapy for hypertension. OBJECTIVE: To assess the responses of heart rate and blood pressure in hypertensive patients to 240 mg/day sustained release verapamil. METHODS: We assessed the effect of 240 mg/day sustained released ...

Clinical and experimental studies point to a positive association between carotid-femoral pulse wave velocity (PWVcf) and casual heart rate. However, an association with 24-h ambulatory heart rate has never been investigated. Twenty-four hour ambulatory heart rate and PWVcf (automatic computerised technique) were simultaneously measured in 213 subjects with untreated mild-to-moderate ...

An Intelligent Patient Monitoring (IPM) framework is defined for the analysis and display of multiparameter trends from ICU patients. Wavelet analysis was utilized for detection of physiological events and artifacts in long-term trends. A group of 58 patients from the MIMIC database were identified in which the heart rate (HR), ...

This study examined the relationship of home blood pressure measurement to medication compliance and name recognition of antihypertensive drugs in outpatients with hypertension. A total of 1,452 consecutive outpatients (842 males, 610 females; mean age 65+/-11 yr) seeking care at our institute answered questions at our cardiovascular outpatient clinic such ...

Several specific features of ambulatory monitoring of the blood pressure have made it important in clinical trials that assess antihypertensive drug therapy. These include the removal of observer bias, improved short-term and long-term blood pressure reproducibility compared with clinic readings, elimination of the 'white-coat' effect during patient selection and the ...

Use of ambulatory blood pressure monitoring (ABPM) techniques has revealed that blood pressure is characterized by a considerable degree of variability over a 24 h period as a result, not only of the well-known fluctuations that occur between wakefulness and sleep, but also of the minute-to-minute changes induced by a ...

AIMS: To evaluate accuracy of patient-reported home blood pressure measurements (HBPM) when compared to real HBPM and their agreement with 12-h daytime ambulatory blood pressure monitoring (ABPM). MAJOR FINDINGS: Self-reported HBPM were compared to stored values of a fully automated, oscillometric blood pressure monitor with integrated memory device and 12-h ...

BACKGROUND: Physiologic monitors present an influx of numerical data that can be overwhelming to the clinician. We combined several parameters in an effort to reduce the amount of information that must be continuously monitored including oxyhemoglobin saturation by pulse oximetry, end-tidal CO2 concentration, arterial blood pressure, and heart rate into ...

There is strong evidence that ambulatory blood pressure measurements show only limited agreement with blood pressures measured in the clinic ("office" blood pressures), and are more relevant to the prognosis of hypertension. Several markers of end-organ damage, for example, have been shown to correlate more strongly with 24-h blood pressure ...

The approach of establishing a time-specified tolerance limit reflecting the circadian variability in blood pressure and then determining the hyperbaric index, the area of blood pressure excess above the upper limit of the tolerance interval, has been proposed for diagnosing hypertension as well as for evaluating the patient's response to ...

Epidemiologic studies have demonstrated that the peak incidence of most types of cardiovascular disease follows a circadian (24 h) pattern. Ambulatory monitoring studies have documented a reproducible 24 h rhythm for blood pressure, characterized by a period of low values during sleep, an early-morning increase in pressures, and a plateau ...

OBJECTIVE: It is necessary to define a reference systolic arterial blood pressure (RP) to calculate delta-Up (dUp) and delta-Down (dDown) for systolic pressure variation. Most studies define the reference pressure as the average systolic blood pressure during a short period of apnea. We describe an automated systolic pressure variation monitor ...

Variations of systolic and diastolic blood pressure in patients with normotension at rest after successful surgical repair of coarctation of the aorta were examined using 24 hour ambulatory monitoring at mid-term follow-up. Ambulatory blood pressure monitoring, m-mode measurements of left ventricle and transmitral Doppler spectrals in 18 patients aged 7.6 ...

BACKGROUND: Hypertension in chronic haemodialysis patients contributes significantly to morbidity and mortality. Treatment decisions are usually based on predialysis readings, which may not accurately reflect control during the interdialytic period. METHODS: We studied 40 randomly selected subjects on haemodialysis and compared readings by different methods at set times during the ...

OBJECTIVE: To reach a consensus on the clinical use of ambulatory blood pressure monitoring (ABPM). METHODS: A task force on the clinical use of ABPM wrote this overview in preparation for the Seventh International Consensus Conference (23-25 September 1999, Leuven, Belgium). This article was amended to account for opinions aired ...

Ambulatory blood pressure (ABP) has only rarely been employed in population studies because of the difficulty posed by the greater complexity of this technique. The cross-sectional studies that have been published, however, have allowed a number of conclusions to be drawn. One, 24h average blood pressure of populations is significantly ...

This article reviews the methods of blood pressure measurements, values reported on premature and term infants, and the significant changes in trends and measurements reported with various conditions. Understanding the underlying mechanisms or conditions that may be associated with blood pressure derangements enable the clinician to determine appropriate treatment and ...

To reach a consensus on ambulatory blood pressure (ABP) as a predictor of target-organ damage (TOD), morbidity and mortality. The members of task force III wrote this article in preparation for the Seventh International Consensus Conference (23-25 September 1999). This article was amended after the meeting to reflect the consensus ...

Self-monitoring of the blood pressure by patients at home or in other nonclinical settings has become increasingly common in recent years. This phenomenon has been fueled in part by the increase in availability of automatic sphygmomanometers, which are now both affordable and easy for patients to use. BENEFITS OF SELF-MONITORING: ...

To examine the relationships between casual, ambulatory and home blood pressure measurements in the general population, these measurements were obtained in 1,695 of 3,744 subjects aged 20 yr or older in Ohasama, Japan. Of these 1,695 subjects, 1,207 measured their home blood pressure more than 14 times in each of ...

OBJECTIVE: The objective of this study was to assess the impact on noninvasive ambulatory blood pressure monitoring on physical activity measured objectively by use of triaxial accelerometers. METHODS: Twenty-four working men and women performed ambulatory blood pressure plus activity monitoring for 1 working day and evening and activity monitoring alone ...

Measurements of ambulatory blood pressure as an adjunct to casual/clinic blood pressure measurements are currently widely used for the diagnosis and treatment of hypertension. There have been many recent reports on the clinical significance of ambulatory blood pressure. The relationship between ambulatory blood pressure level and target-organ damage uniformly demonstrated ...

BACKGROUND: Background Ambulatory blood pressure monitoring (ABPM) has been shown to be more representative of blood pressure levels in adult patients than are casual measurements of blood pressure. OBJECTIVE: To evaluate, by means of ABPM, the behavior of blood pressure in children with chronic renal failure submitted to continuous ambulatory ...

Non-invasive ambulatory blood pressure monitoring (ABPM) is particularly useful for assessing the efficacy of antihypertensive drugs. It provides a large number of blood pressure readings during daytime as well as night-time, which results in a more precise assessment of prevailing blood pressure than can be obtained from sporadic measurements taken ...

An operational threshold for making clinical decision on the basis of ambulatory blood pressure monitoring must be defined. This requires that the relationship between the ambulatory pressure and the incidence of cardiovascular complications be clarified beyond present understanding. Preliminary cut-off points for ambulatory monitoring were derived by averaging the 95th ...

BACKGROUND: The goal of this study was to assess the prognostic value of ambulatory versus clinic blood pressure measurement and to relate cardiovascular risk to ambulatory systolic and diastolic blood pressure levels. METHODS AND RESULTS: The study population consisted of 688 patients 51+/-11 years of age who had undergone pretreatment ...

We measured particulate matter (PM2.5 and PM10) exposures, home temperature, arterial blood oxygen saturation, blood pressure, and lung function in 30 volunteer Los Angeles area residents during four-day intervals. Continuous Holter electrocardiograms were recorded in a subgroup on the first two days. Subjects recorded symptoms and time-activity patterns in diaries ...

Under certain circumstances, wells in unconfined aquifers can display significant water level fluctuations in response to changes in barometric pressure. This is illustrated by Hare and Morse (1997) at a site where a portion of the unconfined aquifer is isolated by a soil-bentonite cutoff wall and clay cap. A relief ...

To assess the factors related to the quality of ambulatory blood pressure monitoring in a pediatric population, we performed 24-h ambulatory blood pressure monitorings on 333 unselected children aged 3 to 18 years using a Spacelabs 90207 monitor. For each individual, the percentages of valid measurements (ratio between valid and ...

PURPOSE: To report anterior ischemic optic neuropathy associated with systemic hypotension in a patient undergoing continuous ambulatory peritoneal dialysis. METHODS: Case report. A 58-year-old man undergoing continuous ambulatory peritoneal dialysis developed painless blurred vision in both eyes and bilateral optic disk swelling with an altitudinal field defect in the left ...

This paper will briefly summarize the available evidence on the diagnostic and prognostic relevance of a number of parameters derived from the analysis of 24 hour ambulatory blood pressure recordings. These parameters include the 24 h average blood pressure values, the difference between daytime and nighttime blood pressure, the difference ...

24 hour ambulatory blood pressure monitoring (ABPM) has been available for many years as a research tool, and is gradually finding its way into clinical practice, despite a general lack of reimbursement in the U.S. Although clinic readings remain the mainstay of blood pressure measurement, they may misrepresent the true ...

OBJECTIVE: To determine the qualitative and quantitative differences of blood pressure measured at home (home measurement) in the morning versus the evening. METHODS: Of 3744 participants, aged 20 years or older in the Ohasama population, more than 14 home measurements in the morning and in the evening, respectively, were obtained ...

OBJECTIVE: Little information is available on the early course of hypertension in type 1 diabetes. The aim of our study, therefore, was to document circadian blood pressure profiles in patients with a diabetes duration of up to 20 years and relate daytime and nighttime blood pressure to duration of diabetes, ...

BACKGROUND: The determination of hypertension in a given population depends on the knowledge of population norms for blood pressure. This is true for both casual blood pressure (CBP) measurements and the newest and most promising technology of ambulatory blood pressure monitoring (ABPM). OBJECTIVE: To design an ambitious multinational co-operative study ...

OBJECTIVE: To examine the extent to which ambulatory blood pressure was predicted by blood pressure levels exhibited during talking segments of a laboratory protocol and by resting blood pressures in male and female adolescents from three ethnic groups: African, European and Hispanic Americans. DESIGN: This was a laboratory-field study incorporating ...

BACKGROUND: Ambulatory blood pressure (ABP) monitoring is used increasingly to evaluate the blood pressure of children and adolescents. Reference values based on a sufficiently high number of healthy children are necessary to estimate the limits of the 'normal' range. OBJECTIVE: To begin to define the normal range of values for ...

Hypertension is highly prevalent in pediatric patients with end-stage renal disease (ESRD). Ambulatory blood pressure monitoring (ABPM) has been used to characterize the altered circadian blood pressure patterns in ESRD in order to improve our understanding of the blood pressure dysregulation that occurs in these children. In children receiving chronic ...

In clinical medicine, blood pressure is usually measured by conventional sphygmomanometry. Although it seems simple at first sight, this procedure is fraught with potential sources of error, which may arise from the subject, the observer, the sphygmomanometer or the overall application of the technique. Automated techniques of blood pressure measurement, ...

OBJECTIVE: To define the range and variability of ambulatory blood pressure in normal schoolchildren. DESIGN: Prospective study. METHODS: Resting blood pressure of 1121 schoolchildren from Newcastle upon Tyne was recorded. An ambulatory blood pressure device, which uses both auscultatory (Korotkoff) and oscillometric methods of blood pressure measurement, was then put ...

Since the early 1980s, when Perloff and colleagues published their seminal report on awake ambulatory blood pressure as a predictor of cardiovascular outcomes, there have been several additional prospective ambulatory blood pressure studies that have been completed in five different countries. The basis for all of these investigations was to ...

Prolonged hypertension in adults has been associated with end-organ damage, in addition to increased morbidity and mortality. Accurate measurement of blood pressure in pediatric and adult patients is imperative for the appropriate diagnosis of hypertension, so that measures may be instituted to prevent these adverse sequelae. Although intermittent office measurement ...

OBJECTIVE: To provide background information on the scientific basis for new Canadian guidelines on ambulatory blood pressure monitoring and the process for developing recommendations for clinical practice. DATA SOURCES: A comprehensive review of the literature on ambulatory blood pressure monitoring was conducted using a computerized literature search and a bibliography ...

BACKGROUND: The relation between mood or emotions and concurrent ambulatory blood pressure responses holds both fundamental and clinical interest. METHODS: The primary sample consisted of 69 normotensive or borderline hypertensive but otherwise healthy adult males. The validation sample consisted of 85 healthy male undergraduate college students. Both samples underwent half-hourly ...

The efficacy of electronic monitoring in the home care of heart failure (HF) patients has not been widely reported. We developed a Vital Sign System (VSS) monitoring device capable of measuring the weight, blood pressure, and heart rate of congestive heart failure (CHF) patients in the home and transmitting these ...

To provide background information on the scientific basis for new Canadian guidelines on ambulatory blood pressure monitoring and the process for developing recommendations for clinical practice. A comprehensive review of the literature on ambulatory blood pressure monitoring was conducted using a computerized literature search and a bibliography of key scientific ...

BACKGROUND: Systolic blood pressure is well known to increase significantly with age and is strongly correlated with stroke and coronary artery disease. We and other investigators have reported a low prevalence of hypertension in subgroups of patients with HIV infection. In the present study, we examined an ambulatory population of ...

BACKGROUND: The use of ambulatory blood pressure monitoring for pediatric populations is increasing. OBJECTIVE:; To determine the 2-year stability of ambulatory blood pressure in youths. METHODS: We evaluated 2-year stabilities of resting and ambulatory blood pressures in 197 youths (aged 13.9+/-2.3 years at initial evaluation). Readings were taken every 20 ...

OBJECTIVE: To determine whether the prediction of target-organ damage varies according to the reproducibility of 24 h blood pressure. SETTING: Seventeen hypertension clinics in northeast Italy. MAIN OUTCOME MEASURES: Correlations of left ventricular mass index and albumin excretion rate with 24 h and office blood pressures in relation to tertiles ...