Search Results
Results 351 - 400 of 673
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Jonas Jost B - - 2003
PURPOSE: To evaluate whether development of macular drusen is influenced by experimentally induced chronic arterial hypertension and atherosclerosis. METHODS: The prospective experimental study included 93 eyes of 51 elderly rhesus monkeys. The total study group was divided into groups with experimental arterial hypertension ( n=22), diet-induced atherosclerosis ( n=10), or ...
Tiwai R R - - 2003
The present cross sectional study on prevalence of hypertension was carried out among 514 cotton textile workers of Shri Bapurao Deshmukh Sut Gimi, Wardha. Using standard guidelines for measuring blood pressure and standard criteria for diagnosis of hypertension, 20.2% of the subjects were found to have raised systolic and/or diastolic ...
Mantero F - - 2003
Hypertension is one of the most important public health problems, affecting 15-20% of the adult population. The so-called "essential" hypertension includes the majority of cases; however, endocrine hypertension should always be suspected and excluded by physicians for at least 2 important reasons: prevalence rates of primary aldosteronism (the most common ...
Wolffsohn James S - - 2002
In addition to being the chief cause of death in developed countries, systemic hypertension is also a leading cause of visual impairment. The eye is an end arteriolar system and is therefore susceptible to changes in blood pressure. It is also the only place where blood vessels can be clearly ...
Diamond Joseph A - - 2002
While essential hypertension is very prevalent, secondary hypertension does occur in clinical practice with sufficient frequency to warrant special attention being given to those patients with severe hypertension who do not respond to standard treatments. The evaluation, diagnosis and treatment of secondary hypertension pose interesting challenges to the physician. In ...
Jette Nathalie - - 2002
A 33-year-old man with complex partial seizures developed de novo hypertension after the initiation of carbamazepine, which resolved on discontinuation. Although rare, a variety of cardiovascular effects including hypertension have been reported with carbamazepine. Numerous mechanisms may be responsible; however, shared pharmacologic properties with the tricyclic antidepressants are suspect. Hypertension ...
Rocchini Albert P - - 2002
During the past decade, there has been a surge of interest in childhood and adolescent hypertension. The current review summarizes work published during the past year in the following areas: prenatal and early postnatal causes of hypertension; new information on the genetics of childhood hypertension; the relation of obesity, insulin ...
Spierings E L H - - 2002
Three patients are described who experienced headache from hypertension: one had acute headache from acute hypertension, one had daily, morning headaches from chronic hypertension, and one had acute headache with generalized tonic-clonic seizure from hypertensive encephalopathy. The presumed pathophysiological mechanisms involved in the three hypertensive headache conditions are reviewed.
Deshpande P V - - 2002
The effects of high blood pressure on growth are not fully understood and while hypertension may be associated with failure to thrive, hypertension causing failure to thrive in children is poorly documented. We describe four children presenting with failure to thrive due to hypertension consequent to various aetiologies. Control of ...
Welch Verna L Lamar - - 2002
Of the estimated 50 million Americans suffering from hypertension, less than a fourth have it under control. One-year costs of failing to control hypertension were recently estimated at $964 million for the total US hypertensive population and $467 million for those being treated. This article will describe effective strategies for ...
Giner Vicente - - 2002
Reversible posterior leukoencephalopathy syndrome (RPLS) is an uncommon entity related to multiple and different pathologies, the most common being hypertensive crisis. It is believed to be secondary to the breakdown on the blood-brain barrier. At the beginning, it is undistinguishable from other leukoencephalopathies. However, the disappearance of brain lesions after ...
Herkner Harald - - 2002
Epistaxis and hypertension are frequent in the general population, but an association is still controversial. Aim of this retrospective cohort study was to test if active epistaxis at emergency department (ED) presentation is associated with hypertension. Patients with active epistaxis at ED presentation (n = 271; 73%) were compared with ...
Krantz Mori J - - 2002
Malignant hypertension and cardiac tamponade are uncommon but potentially life-threatening medical emergencies. Both conditions may be associated with collagen vascular diseases, such as systemic lupus erythematosus. We report a case of acute cardiac tamponade associated with malignant hypertension secondary to lupus nephritis. Immediately after pericardiocentesis, blood pressure declined substantially. Although ...
Goncharuk Valeri D - - 2002
By using quantitative immunohistochemical and in situ hybridization techniques, we studied corticotropin-releasing hormone (CRH) -producing neurons of the hypothalamic paraventricular nucleus (PVN) in patients who suffered from primary hypertension and died due to acute cardiac failure. The control group consisted of individuals who had normal blood pressure and died of ...
Welch Verna L Lamar - - 2002
OBJECTIVE: The objective of this study was to document the prevalence and control of hypertension among Chippewa and Menominee Indians who participated in the Inter-Tribal Heart Project (ITHP), and to identify the covariates of controlled hypertension in this population. DESIGN: Participants responded to an interviewer-administered questionnaire and underwent a physical ...
Singhi P - - 2002
Posterior leukoencephalopathy syndrome is characterized by an acute, usually reversible, encephalopathy with transient occipital lobe abnormalities detected on MRI that occur mostly in association with acute hypertension. The clinical presentation includes seizures, headache, altered mental status and blindness. Disturbed autoregulation of cerebral blood flow and endothelial injury are central to ...
Carter A R - - 2001
Pathophysiological features of both primary aldosteronism and pseudohyperaldosteronism are hyperactive amiloride-sensitive epithelial Na(+) channels (ENaC) and refractory hypertension. Peripheral blood lymphocytes express ENaC, which functions and is regulated similarly to ENaC expressed by renal principal cells. Thus it was hypothesized that individuals with either of these hypertensive etiologies could be ...
Bondanelli M - - 2001
Hypertension is an important complication of acromegaly, contributing to the increased morbidity and mortality of this condition. Prevalence of hypertension in acromegalic patients is about 35%, ranging from 18 to 60% in different clinical series, and the incidence is higher than in the general population. The lowering of blood pressure ...
Scisney-Matlock M - - 2001
The purpose of this study was to investigate the interaction of age and cognitive representations of hypertension in predicting blood pressure. A model of illness self-regulation was used as the theoretical framework for the study. Secondary analysis of data collected from 224 hypertensive adult outpatients was conducted to assess five ...
DeStefano A L - - 2001
To assess maternal versus paternal contributions to the familial aggregation of hypertension, we examined family history data from 344 hypertensive probands (69 African American, 153 US Caucasian, 122 Greek Caucasian) ascertained without respect to parental hypertension status. The proportion of hypertensive mothers (81.7, 65.0 and 84.8% for African Americans, US ...
Crispin S M - - 2001
The fundoscopic appearance and some of the histopathological findings of arterial hypertension in the cat are reviewed in relation to the anatomical and physiological features that place retinal function at particular risk when the eye is subjected to sustained increased arterial blood pressure. The fundus changes fall into three categories: ...
Prentice D - - 2001
BACKGROUND Migraine and hypertension are common conditions that frequently coexist. The relastionship between the two is usually coincidental, but some evidence suggests that poor control of blood pressure may exacerbate the frequency and severity of migraine. OBJECTIVE To review the relationship between migraine, other headaches and blood pressure and to ...
Nishigaki R - - 2001
One hundred and eighty-nine patients who underwent digestive tract surgery were studied to investigate risk factors for the development of postoperative hypertension. We examined factors related to maximum postoperative systolic blood pressure and postoperative hypertensive urgency, a sign of postoperative hypertension. Data collected included blood pressure, age, sex, body mass ...
Mehnaz Afzal
A total of 200 patients were selected and were divided into five age groups (<40, 40-50, 51-60, 61-70 and > 70 Years), two socioeconomic status, i.e., low and middle class, and gender. Results revealed that patients admitted with heart attack, 63.5 % were having hypertension and there found an association ...
Flynn J T. - - 2001
Hypertension, a relatively uncommon problem in childhood except in certain groups of children, is an important cardiovascular risk factor that can have significant health implications, especially the tendency for an elevated blood pressure in childhood to predict the development of adult hypertension. Common causes of childhood hypertension include renal and ...
Passero S - - 2001
The distributions of intracerebral hemorrhage (ICH) according to place of onset, degree of physical activity at onset and potential triggering factors were analyzed in 848 patients with ICH. Patients were grouped according to the presumed cause of ICH: hypertensive ICH, secondary ICH and ICH of undetermined origin. The influence of ...
Levy E I - - 2001
BACKGROUND: Neurogenic hypertension in association with vascular compression of the left rostral ventrolateral medulla has been documented. A recent group of these clinical reports has raised great interest in decompression of this area of the brainstem as a definitive therapy for essential hypertension. METHODS: To further clarify the mechanism by ...
Reyes-Gibby C C - - 2000
This study reports on a community health survey conducted among > or =30 year old rural residents of San Antonio, Nueva Ecija, Philippines, to serve as a basis for tailoring health programs for hypertension in the community. The focus of the analyses is the assessment of the prevalence of and ...
Deepak K K - - 2000
The authors examined a 48-year-old man with a history of hypertension (6 years) and a history of erection and ejaculation during cold exposure and confrontation with fear (20 years). Exposing the foot to cold water induced ejaculation in 10 seconds. A variety of antihypertensive medications resulted in control of hypertension, ...
Salem M M - - 2000
Hypertension is common in the hemodialysis population. Although hypertension in the general population has been shown to reduce survival and to accelerate atherosclerosis, leading to serious cardiac and cerebrovascular morbidity, its effects are less clear in those undergoing dialysis. This review focuses on recent studies showing a favorable outcome in ...
Maggio F - - 2000
OBJECTIVE: To characterize clinical and clinicopathologic findings, response to treatment, and causes of systemic hypertension in cats with hypertensive retinopathy. DESIGN: Retrospective study. ANIMALS: 69 cats with hypertensive retinopathy. PROCEDURE: Medical records from cats with systemic hypertension and hypertensive retinopathy were reviewed. RESULTS: Most cats (68.1%) were referred because of ...
Lip G Y - - 2000
Malignant phase hypertension (MHT) represents the most severe form of hypertension, and many consider that this condition only occurs in poorly managed patients with previously known hypertension. To investigate this further, we studied 350 patients with MHT on the West Birmingham MHT database: 195 (55.7%) of these presented de novo, ...
Jaddou H Y - - 2000
The objectives of this study were to: (1) estimate the magnitude of hypertension, and its levels of awareness and control of hypertension among a recently urbanised community of Jordanian aborigines; and (2) to compare the study findings with findings from other Jordanian communities. A sample was randomly selected from the ...
Finsterer J - - 2000
Cerebral haemorrhage without hypertension, arteriosclerosis or clotting defect has not been reported in patients with Turner's syndrome before. In a 51 year old female patient with non-mosaic Turner's syndrome, acute aphasia and right-sided hemiplegia occurred, due to left-sided basal ganglia haemorrhage. The history for hypertension was negative, blood pressure was ...
Audoly L P - - 2000
The generation of knockout mice using homologous recombination in embryonic stem cells is a powerful tool for physiologic investigations. This experimental approach has provided unique insights into the study of hypertension. Studies using knockout mice have shed new light on blood pressure regulatory mechanisms, molecular mechanisms of end-organ injury, and ...
Walker C C - - 2000
OBJECTIVE: The purpose of this study was to assess the efficacy of a telecommunications approach to hypertension education. METHODS: Participants (N = 83) were randomly assigned to the experimental and control groups. Experimental group participants received spiritual and hypertension-related messages via programmed telephone calls, and the control group participants received ...
Wofford Marion R. - - 2000
Of hypertensive patients, 95% have primary (essential) hypertension. The remaining 5% of adults with hypertension have an identifiable or "secondary" disorder responsible for the elevated blood pressure. Although relatively rare, the diagnosis of secondary hypertension is important as these forms require specific treatments based on the underlying pathophysiology and are ...
Alagiakrishnan K - - 2000
Postural hypertension is a condition in which the blood pressure rises abnormally during standing. The aim of this study is to determine the prevalence of postural hypertension and its association with morbidity and subsequent mortality. At the fourth examination (1991-1993) of the Honolulu Heart Program longitudinal cohort, 3741 Japanese-American men ...
Herkner H - - 2000
STUDY OBJECTIVE: We sought to evaluate whether patients with epistaxis in the emergency department have a higher arterial blood pressure compared with patients with other medical emergencies and to study the association of elevated blood pressure during epistaxis with sustained arterial hypertension. METHODS: In a prospective, cross-sectional, prevalence study we ...
Mohamed M R - - 2000
This study was designed to be a house to house survey to fulfill an interview questionnaire and measure blood pressure for 1927 rural inhabitant at "Bany Magdoul" village located at Imbaba district of Giza governorate. The response rate was 96.4%. The prevalence of hypertension among study sample was 27.9%; only ...
Parker E C - - 2000
The Chiari I malformation has not been previously linked to sustained hypertension. Other forms of medullary compression have, however, been shown to be associated with elevated arterial pressure. This association has been demonstrated through numerous studies that have implicated compression of the rostral ventrolateral medulla, usually by vascular structures, as ...
Mathew N T - - 1999
Association between mild to moderate hypertension and headache is probably coincidental. Severe sustained hypertension, malignant hypertension and paroxysmal hypertension (sudden rise) are associated with severe headache. Transient hypertension can occur during an attack of migraine or cluster headache. Hypertension may increase the frequency and severity of migraine in migraineurs and ...
Lubianca Neto J F - - 1999
OBJECTIVES/HYPOTHESIS: To study the association between history of mild to severe epistaxis with different stages of hypertension and with other evidence of target organ damage in a sample of patients attending an outpatient hypertension clinic, controlling for potential confounding factors. STUDY DESIGN: A survey of adult patients with hypertension. METHODS: ...
Resnick L - - 1999
Two central concepts of human hypertensive disease remain poorly understood: (1) elevated blood pressure as merely one component of an underlying systemic condition, characterized by multiple defects in diverse tissues (eg, "Syndrome X"), and (2) the heterogeneity of hypertension, in which different and even opposite clinical responses to different dietary ...
Nishijo N N Laboratory Animal Research Center, University of Tsukuba, Ibaraki, - - 1999
We physiologically and histopathologically analyzed vascular damage due to hypertension and vascular remodeling in hypertensive transgenic mice (Tsukuba hypertensive mice; THM). Pubertal (6-week-old) THM already had hypertension similar to blood pressure in adult THM due to an enhanced renin angiotensin system (RAS). They progressively developed remarkable vascular hypertrophy composed of ...
Horowitz M B - - 1999
Primary or essential hypertension affects more than 50 million Americans, more than 6 million of whom cannot achieve adequate control of their condition with medication. The current neurophysiologic literature indicates that some forms of primary hypertension may be secondary to compression of the left rostral ventrolateral medulla near the root ...
Greifenkamp J D - - 1999
Although approximately 90% of patients diagnosed with hypertension have essential hypertension, it is important that secondary hypertension is considered; diagnosed, when present; and managed either medically or surgically. Although the most common organ involved in the etiology of secondary hypertension is the kidney, disorders of the adrenal gland also play ...
Amin-Hanjani S - - 1999
OBJECTIVE AND IMPORTANCE: After developing subarachnoid hemorrhage, patients may deteriorate from a variety of well-known causes, including rebleeding, hydrocephalus, and vasospasm. Many patients now undergo empirical hyperdynamic vasospasm therapy with hypervolemia, induced hypertension, and nimodipine. CLINICAL PRESENTATION: We report two cases of iatrogenic hypertensive encephalopathy occurring during hyperdynamic therapy for ...
Sapienza P - - 1999
OBJECTIVE: To assess the long-term results of operation for adrenal hypertension and to evaluate reasons and potential risk factors for the persistence or recurrence of hypertension. DESIGN: Retrospective clinical study. SETTING: Teaching hospital, Italy. SUBJECTS: 48 patients with benign adrenal tumours who were preoperatively hypertensive and treated by adrenalectomy between ...
Aigbe A - - 1999
Hypertension is the most significant cardiovascular risk factor to emerge in developing countries. 64 hypertensives (40 old hypertensives and 18 newly diagnosed hypertensives) and 40 age and sex matched normotensives controls were studied. Plasma fibrinogen concentration (PFC), euglobulin lysis time (ELT) and relative plasma viscosity (RPV) and relative whole blood ...
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