Search Results
Results 451 - 500 of 672
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Sokas R K - - 1995
Noise exposure has been associated with increased catecholamine production and blood pressure elevation in laboratory studies and in human volunteers. Epidemiologic studies have given conflicting results. In order to determine whether noise-induced hearing loss predicts a rise in blood pressure, we reviewed occupational medicine records in an occupational health center ...
Ernst A - - 1995
In this report, we describe the findings of a noninvasive assessment of the intralabyrinthine pressure in two patients from a family with X-linked progressive, mixed deafness syndrome in whom a perilymphatic gusher occurs during stapes surgery. The so-called tympanic membrane displacement measurement technique could be successfully applied in these two ...
Bujenovic L S - - 1995
BACKGROUND: Noninvasive cost-effective screening of hypertensive patients for renovascular hypertension is a desirable approach to a rare disorder. Currently many patients are screened with angiography, which is both invasive and expensive. METHODS: A MEDLINE search from 1985 through July 1994 using the key words "renovascular hypertension," "noninvasive," "screening" generated 16 ...
Atallah M M - - 1995
STUDY OBJECTIVE: To determine the agreement between thermodilution (TD) and thoracic electric bioimpedance (TEB) techniques in cardiac output (CO) measurements in hyperdynamic kidney recipients and normodynamic patients subjected to radical cystectomy. The main objective was to determine the reliability of TEB in CO measurement. DESIGN: Open two-group study. SETTING: University ...
van der Bijl P - - 1995
The objective of this study was to determine the pressures that caused cartridge failure (leakage or fracture) of six different dental local anaesthetics available in South Africa. Forty glass cartridges of each local anaesthetic were placed in an apparatus and subjected to pressure testing using two different plungers. Failure of ...
Pheley A M - - 1995
This article reports the experience of patients with elevated blood pressure scheduled to be seen in a nurse-based hypertension management program in a large multispecialty group practice. The hypertension management program is a screening and follow-up program designed to improve the measurement and management of patients' blood pressure with standardized ...
Richards C F - - 1995
The object of this study was to determine if the presence of sympathomimetics (cocaine, benzoylecgonine, or amphetamine), detected by routine urine toxicology screen, affect the initial presenting pulse, blood pressure, respiratory rate, or level of consciousness in trauma patients. A retrospective chart review was performed on 1,679 patients enrolled in ...
Hunter F - - 1994
Probing of the sensitive, soft periodontal tissues differs markedly from probing of the dental hard tissues and caries. Periodontal probing requires special skills as well as an understanding of the tissues being examined, the probing procedure and the use of an appropriately designed instrument. Periodontal probing seeks to complement the ...
Nally J V JV - - 1994
BACKGROUND: Nearly 50 million Americans have hypertension, and renovascular hypertension accounts for perhaps 1% of them. PURPOSE: To review the current recommendations and the available screening tests for renovascular hypertension. SUMMARY: The presence of clinical clues increases the predictive value of screening tests for renovascular hypertension; these include abrupt onset ...
Harris M G - - 1994
We surveyed a random sample of 250 optometrists (OD) and 250 ophthalmologists (MD) in November 1991 to determine if they were involved in blood pressure measurement. A 50.4 percent and 34.8 percent response rate was obtained from ODs and MDs, respectively. Of those responding, 85 percent of the optometrists and ...
Cook N R - - 1994
In screening subjects for a continuous variable, such as blood pressure (BP), for eligibility for clinical trials, multistage rules are often used to select subjects within a target range. Multiple readings may be taken over successive visits, and the subject must meet eligibility criteria at each visit. We present an ...
Woelk G - - 1994
This paper reviews blood pressure tracking from childhood through adolescence, to adulthood. Blood pressure tracking correlations in childhood and adolescence vary from 0.2-0.6. Systolic blood pressure tracks better than diastolic pressure. There does not appear to be a gender difference, except that girls mature earlier than boys and so reach ...
Shah R D - - 1994
Extrusion-spheronization is a popular means of producing spheres which can be coated to form a controlled-release system. In the extrusion process, stress is necessary to force a wet mass through small orifices, and as a result, frictional heat builds up at the screen. Therefore, the quantitative measurement of the screen ...
Ellis E - - 1994
This study determined the cost-effectiveness of one- versus two-stage hypertension screening at small to medium-sized blue collar, multicultural work sites using voluntary health organization and public health unit personnel. Workers with diastolic blood pressure (DBP) > or = 90 mm Hg were randomly allocated to one- or two-stage screening with ...
Tanji J L - - 1994
BACKGROUND: Little is known regarding the prevalence rate of hypertension among recent Southeast Asian refugees to the United States. METHODS: In this randomized, prospective study, four northern California counties with large Southeast Asian refugee populations were screened for the prevalence rates of hypertension and borderline hypertension. A population density method ...
Aubin M - - 1994
OBJECTIVE: To evaluate the effectiveness of a program to improve hypertension screening practices in primary care. DESIGN: Retrospective quasi-experimental study. SETTING: Two hospital-based family medicine centres (FMCs). PATIENTS: In the study FMC, two study groups of randomly selected adult patients: 425 who visited the FMC before implementation of the screening ...
Strazzullo P - - 1994
Alterations in calcium metabolism have been detected in both human and rat primary hypertension at various levels of the biological organization; in particular, an abnormal renal electrolyte handling, leading to chronically enhanced urinary calcium excretion, has been demonstrated. In keeping with this finding, a significant statistical association between high blood ...
Snow D H - - 1993
Anabolic steroids have been employed extensively in equine practice over the past 25 years. Their usefulness is largely dependent on subjective opinions, as only minimal studies have been carried out in horses. Therefore, their use will vary markedly between practitioners depending on their personal experiences and pressures by trainers to ...
Satterfield S - - 1993
Phase I of the Trials of Hypertension Prevention was a multicenter, randomized, controlled trial designed to determine the efficacy of seven nonpharmacologic interventions in reducing blood pressure among persons with high-normal diastolic blood pressure. The initial goal for recruitment was to enroll 2,100 participants over a nine-month period. The two ...
Cook N R - - 1993
Multistage blood pressure screening rules are often used to select subjects for clinical trials. Multiple blood pressure readings are taken over successive visits, and the subject must meet eligibility criteria at each visit. In this paper, the authors present methods which depend on the distribution of the subject's underlying blood ...
Vatine J J - - 1993
Deep pressure pain threshold (PPT) and pressure pain tolerance (PPtol) were measured by pressure algometry at the mastoid processes, external malleoli, and sternum in 24 healthy volunteers. The algometer consisted of a force displacement transducer with a 0.25 cm2 pressure tip linked to a recorder. The rate of force application ...
Vidal-Valverde C - - 1993
Using a high-performance liquid chromatography (HPLC) method, researchers analyzed the sugar composition of chick-peas, kidney beans, and lentils at various points in the preparation and cooking process: after soaking, after "normal" cooking (ie, boiling), after pressure-cooking, and after cooked legumes had been held at 35 degrees C for 5 hours. ...
Birkenhäger W H - - 1993
Screening for hypertension within the proper setting potentially leads to the detection of numerous (mild) hypertensives, some of whom in due time may well qualify for treatment. One disadvantage of the procedure appears to be that hitherto unwitting hypertensives may develop some adverse psychological and physiological phenomena. Behavioral effects seem ...
Townsend R R - - 1993
The clinical laboratory is essential to the successful and complete evaluation of the patient with hypertension. A reasonably thorough knowledge of the important physiologic components of blood pressure regulation, in conjunction with a good history and physical examination and a simple panel of screening tests serve to detect or rule ...
Ruiz de la Fuente Tirado S - - 1992
This study reports the findings of one of the stages of a programme for the detection and control of arterial hypertension, started in 1980 in an automobile company with a workforce of 9,782. In the initial screening, 522 hypertensive males were found using epidemiological criteria and 206 of these fulfilled ...
Perry H M HM - - 1992
OBJECTIVE: To estimate the magnitude of misclassification rates with commonly used algorithms for the detection of hypertensives and to suggest a sequential approach to screening. DESIGN: A conventional statistical model was used with several different algorithms to determine the number and types of errors made in categorizing two different populations, ...
Sullivan K L - - 1992
RATIONALE AND OBJECTIVES: Pressure measurements during dialysis have been used to screen for venous outlet stenosis, but the relationship between the degree of stenosis and pressure has not been defined. METHODS: To determine this relationship, failing or failed dialysis grafts (n = 34) were studied with angiography and pressure measurements ...
Levy S S - - 1992
Measurement of recirculation and intradialytic venous line pressures may aid in the detection of hemodialysis vascular access stenoses. The authors screened 29 consecutive asymptomatic patients for recirculation values exceeding 15% or venous pressures greater than 150 mmHg. All 13 patients requiring and agreeing to angiography on the basis of the ...
DeFraites R F - - 1992
We studied referral patterns among 505 active duty Army participants in a heath promotion program at Fort Lewis, Washington. Over one-third (35.6%) were referred to health care providers for confirmation of cholesterol or blood pressure screening results. Fifty-two (10.3%) had elevated blood pressure screening measurements, of whom 30% had been ...
Morgan D W - - 1992
Abnormal tone in the pharyngo-oesophageal (PO) segment may lead to failure in developing oesophageal speech. Videofluoroscopy may give a qualitative assessment of the PO segment but is expensive, time consuming and lacks quantification. A custom built PO segment manometer was therefore assessed as a means of predicting eventual oesophageal speech ...
Brunt J H - - 1992
The purpose of this study was to examine the impact of a hypertension screening program on Hutterites from Alberta, Canada who were found to have a diastolic blood pressure greater than 90 mm Hg. At approximately 16 months postscreening, 200 subjects completed a self-administered questionnaire requesting information about physician follow-up ...
Insana M F - - 1992
Ultrasonic backscatter properties of normal dog kidney parenchyma are examined in vivo to determine sources of acoustic scattering. We systematically varied the renal perfusion and ureteral pressures to obtain detailed information about scattering sources that could not be seen under in vitro conditions. These data suggest that in normal parenchyma ...
Gillman M W - - 1992
Blood pressure measurement in childhood can be considered as a screening test for future blood pressure levels. Evaluating this test involves calculating sensitivities, specificities, and predictive values for a blood pressure measurement at an initial time for predicting underlying true blood pressure at a subsequent time. We demonstrate the use ...
Schnall P L - - 1992
The impact of occupational stressful life events on psychological distress and blood pressure was examined among employees of a major New York City brokerage firm undergoing massive layoffs. One hundred thirty-nine employees of the firm, who had participated in a blood pressure screening in 1986, were rescreened during the period ...
Benedict C R - - 1992
A microcomputer-based program has been developed which performs rapid and accurate acquisition of cardiovascular data from instrumented animals or isolated perfused hearts with concurrent analysis and display of the hemodynamic indices. The system allows real-time viewing of the data in four alternative graphic displays. These include: (1) a strip-charge type ...
Lim T O - - 1991
Undetected hypertension is an obstacle to effective blood pressure control in the community. A study was done to assess the justification of screening in the outpatient department. Only 13% of all visits to the outpatient department resulted in an attempt to detect hypertension. The common reasons leading to blood pressure ...
Torres X M - - 1991
A total of 550 males and 457 females in their 60s and 70s were screened for height and weight, blood pressure, glucose, cholesterol, and hemoglobin. Statistical analysis was performed using SAS software. Male values were abnormal for all screening parameters except for cholesterol. Statistically significant lower hemoglobin in males suggests ...
Armstrong D - - 1991
OBJECTIVE: To assess the effect of pressure from patients on patterns of general practitioners' outpatient referrals. DESIGN: Survey of general practitioners' referrals to hospital outpatient departments during one week. SETTING: One health district. SUBJECTS: All (160) general practitioners in the health district. MAIN OUTCOME MEASURES: Specialty of the referral, the ...
Isaksson H - - 1991
In order to determine the features that characterize refractory hypertension (RH), patients aged less than 65 years in a hypertension clinic were screened. Thirty-six patients on triple drug therapy with a supine diastolic blood pressure (DBP) of greater than or equal to 5 mmHg above an identified target pressure (90-100 ...
Russell N K - - 1991
BACKGROUND: While the distribution of cholesterol levels have been well studied in the general population, little is known about cholesterol and other cardiovascular disease risk factors in screenings held in an urban Black community. This study was designed to determine the yield of cholesterol screening in this community. METHODS: Screening ...
Holmen J - - 1991
OBJECTIVE: Evaluation of detection of hypertension in adults in the county of Nord-Tr?ndelag, Norway. DESIGN: Cross sectional survey with clinical follow up examinations. SETTING: Health survey by screening teams from the national health screening service, and examinations by all 106 general practitioners in the county. SUBJECTS: During 1984-6, 74,977 persons ...
Radice M - - 1991
The effect of a population screening for hypertension was assessed through a subsequent survey performed 1 year later. All the hypertensives identified at the first visit (239 subjects, 15.6% of the whole screened population) were invited for a re-examination: the adhesion rate was 84.5%. After the screening, a high proportion ...
Guyton A C - - 1990
In this short paper, I have tried to explain the elation that we felt when we first realized that the kidney-fluid mechanism for controlling the arterial pressure has an infinite feedback gain property. Because of this, all the other pressure control mechanisms, none of which has ever been shown to ...
Wandel J C - - 1990
We found a prevalence rate of elevated blood pressure readings in our sample of 86 nonacute EU patients without history of hypertension that was similar to that reported by the author of a previous study (Franklin, 1987) done in the same setting and continue to advocate the use of the ...
McElroy N D - - 1990
The present investigation contractile responses of microdissected intrarenal arcuate arteries from sham-operated rabbits and two-kidney, one clip Goldblatt hypertensive rabbits at 2 and 12 weeks after procedure. Arcuate arteries from both kidneys of the sham-operated rabbits and stenotic and nonstenotic kidneys of the Goldblatt hypertensive rabbits were studied. Mean arterial ...
Massay R J - - 1990
We report a case of pseudohypertension seen at our hospital. The true prevalence of this condition is unknown. We remind clinicians of Osler's manoeuvre (the palpability of the pulseless brachial artery) which can be used as a screening test for its presence. The diagnosis is made by documentation of normal ...
Thüer U - - 1990
The study aimed at evaluating how training of the lips with an oral screen affects the strength of the lips and the pressure of the lips on the teeth. In addition, the effect of the treatment with an oral screen on the dentition was studied. The treatment and lip training ...
Hampton A - - 1990
Free blood pressure checks, targeted at those aged 30 to 64 years, were offered for a six week period in a small inner city pharmacy. The pharmacist invited 120 clients to take part, of whom 70 (58%) accepted. Thirty of those having the check were interviewed. All had seen their ...
Smith T D - - 1990
Variation in labelling of hypertension by individual general practitioners was studied during a continuous opportunistic screening programme for hypertension in a single general practice with 12 principals. All the general practitioners agreed to label as hypertensive patients with systolic pressures of greater than or equal to 200 mm Hg or ...
Vernon S A - - 1990
Eighty-nine and a half per cent of the population of a general practice over the age of 49 years were screened for glaucoma and high risk ocular hypertension requiring treatment. Screening took place using semi-automated intraocular pressure and visual field equipment operated by non-ophthalmologically trained staff. An experienced ophthalmologist examined ...
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