Search Results
Results 551 - 600 of 1207
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Favia G - - 1998
Pheochromocytoma is a rare tumor that is found in only 0.1% of patients with diastolic hypertension. We analyze the results of our experience in management of pheochromocytomas and long-term results of its surgical treatment. From 1977 to 1996 we operated on 55 patients with a pheochromocytoma: 29 males and 27 ...
Mason N A - - 1998
The pathogenesis of pulmonary hypertension (PH) remains poorly understood. Vasoconstriction, although likely to be a major factor in the disease, varies between patients and studies of a variety of vasoactive substances have sometimes yielded conflicting results. Amongst these substances, alteration of the nitric oxide (NO) system has been cited as ...
Horton S L - - 1998
Spiny keratoderma is a dermatosis consisting of multiple projections located on the palms and soles, with a distinct histology characteristic of a parakeratotic column above a hypogranular epidermis. We report six cases discovered within a year and review the present literature on spiny keratoderma. The average age of the patients ...
Ong Y Y - - 1998
Approximately 20% of patients with the limited form of scleroderma will develop pulmonary hypertension which is generally a late stage fatal complication. Why pulmonary hypertension occurs in this subset of patients is unknown and it has not been possible to predict which patients are at risk. Nailfold capillary dilatation, distortion ...
Keskil Z A - - 1998
It is well known that in haemodialysis patients suffering from oligoanuria, extracellular hypervolaemia develops and this hypervolaemia is the main reason for hypertension occurring in some of the patients. The absence of vasorelaxation during hypervolaemia may be secondary to an increased activity of vasoconstrictor systems and/or a decreased formation of ...
Lim J H - - 1998
To evaluate functional changes of the retina in patients with chronic renal failure (CRF), we analyzed maximal combined response according to the recommendations of the International Society of Clinical Electrophysiology of Vision. Oscillatory potentials were extracted from maximal combined response by high pass filtering. Because most CRF patients suffer from ...
Elstein D - - 1998
BACKGROUND: Enzyme therapy has been shown to decrease the signs and symptoms of Gaucher's disease. A few patients, however, develop pulmonary hypertension on such treatment. We investigated the frequency of pulmonary hypertension in Gaucher's disease. METHODS: We studied 134 adults with type 1 Gaucher's disease, including 73 patients on enzyme ...
Howes L G - - 1998
AIMS: To determine the prevalence of isolated systolic hypertension (ISH) in patients 60 years of age and over attending general practitioners, and the proportion of patients in whom blood pressure (BP) remains within the ISH range when measured on three successive occasions and when using home BP monitoring. METHODS: BP ...
Herlitz J - - 1998
AIM: To describe the mortality, mode and place of death and risk indicators of death during 5 years of follow-up among patients admitted to the emergency department (ED) with acute chest pain or other symptoms raising a suspicion of acute myocardial infarction (AMI) in relation to a history of hypertension. ...
Harder S - - 1998
AIMS: We evaluated ambulatory prescriptions by general practitioners for outpatients with cardiovascular (CV) disease referred to the cardiology outpatient clinic of the Frankfurt University Hospital in order to prove adherence to generally acknowledged therapy standards for treating CV disease. METHODS AND RESULTS: Appropriateness of current CV medication was assessed according ...
Sabir M - - 1998
Fifty newly diagnosed nonsmoker patients suffering from mild to moderate hypertension (diastolic BP 90 to 114 mmHg), randomly selected and not having respiratory or other systemic diseases which may affect pulmonary functions were subjected to thorough interrogation and clinical examination. Twenty five normal age and sex matched healthy volunteers served ...
Conlin P R - - 1998
During the past 20 years the number of subclasses of calcium channel blockers has increased from one to four. Three classes have only a single clinically approved compound: verapamil, diltiazem, and mibefradil. The fourth class, dihydropyridines, contains numerous compounds. All agents are effective in lowering blood pressure in short-term studies, ...
Dougherty T B - - 1998
The preoperative evaluation and safe anesthetic treatment of patients with endocrine gland tumors mandate an understanding of the physiologic dysfunctions attributable to these tumors. Some patients will exhibit various signs and symptoms characteristic of the MEN syndromes. In the patient with acromegaly, a fiberoptic-guided intubation of the trachea to secure ...
Michel M C - - 1998
OBJECTIVE: To compare the efficacy, global tolerability and blood pressure effects of tamsulosin (0.4 mg once daily) in subgroups of patients with lower urinary tract symptoms (LUTS) suggestive of benign prostatic obstruction (BPO). METHODS: Data from two open-label, observational studies (Study I: 9,507 patients treated for 4 weeks, Study II: ...
Behera D - - 1998
Pulmonary function (FVC, FEV1, PEFR, MMEF) and arterial blood gases (ABG) were analysed in 30 patients of portal hypertension. The aetiology of portal hypertension included cirrhosis of liver (n = 10), non cirrhotic portal fibrosis (NCPF, n = 10) and extrahepatic portal vein obstruction (EHPVO). Ten patients with chronic active ...
Soin A S - - 1998
We studied 25 consecutive patients with noncirrhotic portal hypertension to determine whether portal hypertensive gastropathy occurred and whether it was related to hypoacidity, hypergastrinemia, or portal venous congestion. Preoperative tests included gastrointestinal endoscopy, gastric mucosal biopsies, gastric acid estimation, and serum gastrin measurements. All patients had a central splenorenal shunt ...
Suzuki M - - 1997
BACKGROUND AND PURPOSE: The pathophysiological mechanisms that cause cerebral MR T2 high intensities in end-stage renal disease (ESRD) are unclear. We evaluated the incidence and the risk factors of T2-weighted MR brain high intensities in patients with ESRD. METHODS: We examined the degree of T2-weighted MR brain high intensities (high ...
Misra V - - 1997
Histopathologic features of duodenal and jejunal mucosal biopsy specimens obtained from 58 patients with portal hypertension and 30 healthy volunteers were studied. Dilated mucosal vessels with thickened walls were seen in duodenal and jejunal biopsy specimens from 39 (67%) and 41 (71%) of the patients, respectively, compared with corresponding biopsy ...
Zazgornik J - - 1997
Hypertension is frequently observed in end-stage renal failure. We analysed the incidence and severity of hypertension as well as antihypertensive treatment in a large group of patients on renal replacement therapy (RRT). Questionnaires were sent to all 49 dialysis centers caring for a total of 2090 patients on RRT in ...
Salama Z A - - 1997
BACKGROUND AND STUDY AIMS: Using EUS in the study of portal hypertensive patients, various divisions of the gastroesophageal collateral circulation can be demonstrated. The azygos vein, which is the main drainage system for varices, can also be scanned endosonographically. We studied the azygos vein in control subjects and portal hypertensive ...
Belfort M A - - 1997
OBJECTIVE: To test the usefulness of ultrasound-derived measurements of intracardiac filling pressures and cardiac performance in the noninvasive management of obstetric patients with an indication for hemodynamic monitoring. METHODS: We included patients with oliguria unresponsive to crystalloid boluses, with hypertension unresponsive to hydralazine, and at high risk for pulmonary edema ...
Edwards C - - 1997
This open, non-comparative, PMS study of fosinopril (Staril) involved 12,067 hypertensive patients assessed at baseline and after two and six months of treatment; 10,791 patients provided evaluable data with 5.2 months average treatment totalling 4667 patient-years. Adverse events were reported in 24% of patients, the most common being mild-to-moderate cough ...
Brkljacic B - - 1997
PURPOSE: The purpose of this study was to evaluate the performance of color duplex Doppler ultrasonography in the assessment of renal vascular resistance (RVR) by measuring resistive indices (RIs) and pulsatility indices (PIs) in patients with autosomal dominant polycystic kidney disease (ADPKD), and to correlate the measured values with renal ...
Janetschek G - - 1997
PURPOSE: In a recent study we found an increased resistive index immediately after extracorporeal shock wave lithotripsy (ESWL) in patients older than 60 years, which suggests renovascular disturbance. The present 26-month followup study was undertaken to investigate the relevance of elevated resistive index levels and the incidence of new onset ...
Cirera I - - 1997
This retrospective cohort study was aimed at investigating the effects of anemia on the hemodynamic disturbances associated with portal hypertension. In all, 202 consecutive nontreated portal-hypertensive patients referred for evaluation to our Hepatic Hemodynamic Laboratory were included. Compared to the nonanemic patients, anemic cirrhotic patients had an increased cardiac output ...
Golwyn D H DH - - 1997
PURPOSE: Retrospective review of authors' experience with percutaneous transcatheter renal ablation in patients with uncontrolled hypertension and/or nephrotic syndrome. MATERIALS AND METHODS: Between April 1987 and September 1995, renal ablation was performed on 11 patients aged 10 months to 21 years. All patients had end-stage renal disease (ESRD) with uncontrolled ...
Hui K K - - 1997
BACKGROUND: Ethnic and/or racial differences in drug response to antihypertensive agents have been recognized, yet the prescribing practices and the information on efficacy of various agents rely mainly on the response of whites to drugs. OBJECTIVES: To assess the management of hypertension in Asian Americans and to compare it with ...
Roul G - - 1997
AIMS: This study was designed to assess the changes in left ventricular mass (LVM) in hypertensive patients with left ventricular hypertrophy under drug therapy with once-daily slow-release diltiazem. Magnetic resonance imaging (MRI) was used for this purpose because of its higher reproducibility than M-mode or two-dimensional echocardiography. METHODS: Patients suffering ...
Tanabe A - - 1997
We determined functional and morphological changes of the heart by 2-dimensional and pulse Doppler echocardiography in 20 patients with primary aldosteronism and compared the results with those in 50 healthy normotensive subjects, 12 patients with Cushing's syndrome, 9 patients with pheochromocytoma, and 47 patients with essential hypertension. All hypertensive groups ...
Ignatowska-Switalska H - - 1997
The plasma aldosterone to renin activity ratio (A/PRA) was assessed retrospectively in 103 patients with primary aldosteronism including 74 patients with surgically proven adrenal cortical adenoma (APA) and 29 patients with idiopathic adrenal cortical hyperplasia (IHA). The results were compared with those obtained in 31 patients with essential hypertension (EH) ...
Spangler J G - - 1997
BACKGROUND: The excretion of small amounts of urinary protein, known as microalbuminuria, among patients with essential hypertension is associated with increased mortality from cardiovascular disease and, possibly, future renal decline. Correlates of microalbuminuria among primary care patients with essential hypertension, however, have not been well described. METHODS: One hundred forty ...
Friis T - - 1997
We have studied 46 patients, 30 men and 16 women, with type 2 (non-insulin-dependent) diabetes in a follow-up period of 6-52 months (mean 30 months). The patients were consecutively entered in the study from the out-patient diabetic clinic. None had urinary tract infections nor proteinuria at entry. Investigations were done ...
Ferraro F J - - 1997
A high level of suspicion is required when treating patients with a history of esophageal bleeding and portal hypertension. The preoperative workup must be extensive; if the reconstructive surgeon is considering the use of a rectus abdominis muscle transfer, noninvasive studies and an exhaustive physical examination are required. Factors affecting ...
Kramer R L - - 1997
OBJECTIVE: To determine the utility of evaluating coagulation function in patients with chronic hypertension, transient hypertension, preeclampsia, eclampsia and the HELLP syndrome. STUDY DESIGN: We retrospectively reviewed the charts of 244 patients who delivered between March 1992 and March 1994 at the University of New Mexico with a discharge diagnosis ...
Pursnani K G - - 1997
BACKGROUND: Portal hypertension is frequently associated with secondary hypersplenism, two common clinical manifestations of which are leukopenia and thrombocytopenia. Surgical portosystemic shunts alleviate portal hypertension but their effect on hypersplenism remains unpredictable. Transjugular intrahepatic portosystemic shunt (TIPS) is a minimally invasive procedure for portal decompression. From current reports it is ...
Gazzaruso C - - 1997
BACKGROUND: Besides hypertension, several cardiovascular risk factors can play a role in the development of coronary heart disease (CHD) in hypertensive patients. Lipoprotein(a) [Lp(a)] is an important and independent cardiovascular risk factor, but its role in the development of CHD in hypertensives has not been studied. OBJECTIVE: To investigate whether ...
Luther H P - - 1997
Autoimmune mechanisms have been proposed to play a role in the pathogenesis of primary (essential) hypertension. Autoantibodies against the alpha 1-adrenergic receptor have been described in patients with malignant and secondary hypertension. To investigate the incidence of autoantibodies against the alpha 1-adrenoceptor in patients with primary hypertension, we examined the ...
Fortuño A - - 1997
In this study, we investigated whether antihypertensive treatment with the angiotensin converting enzyme inhibitor quinapril modifies Na+/H+ exchanger activity or NHE-1 (isoform of the exchanger) mRNA expression in lymphocytes from patients with essential hypertension. Thirty-three hypertensive patients and 27 normotensive subjects were studied. Maximal sodium-proton exchange activity was determined by ...
Zhang Y - - 1997
OBJECTIVE: To determine the feasibility of home monitoring of patients with cardiac disease or hypertension. METHODS: An improved home electrocardiographic and blood pressure telemonitoring system linked to a central workstation was tested in 10 patients in Macau for 3 months. RESULTS: The total number of connections was 1377. Of the ...
Uno A - - 1997
Portal hypertension is a relatively uncommon pathologic condition in children and young adults in contrast with older adults. The aim of this study is to evaluate the utility of sonography and color Doppler sonography in the diagnosis of portal hypertension in children and young patients and to evaluate the sonographic ...
Baldoncini R - - 1997
Nonmodulating (NM) essential hypertensives are characterized by abnormal renal and aldosterone responses to angiotensin II. Recently, hyperinsulinemia, hypercholesterolemia, and an increased prevalence of family history of hypertension and myocardial infarction have been shown in NM hypertensives. Since an elevated urinary albumin excretion (UAE) has been indicated as a negative prognostic ...
Cho Y W - - 1997
1. Donor age is now a predominant factor influencing graft outcome. 2. A new finding here is that recipient peripheral vascular disease, PVD is also a major factor. This factor was independent of whether the patient had diabetes or not. Presensitization, as shown by a high PRA is additive to ...
Bojić L - - 1997
The aim of this study was the assessment of physiological venous reflexes in systemically hypertensive and normotensive subjects with primary open-angle glaucoma. The experimental group consisted of 20 normotensive and 20 untreated systemically hypertensive patients with open-angle glaucoma. The control group consisted of 31 volunteers divided into two subgroups: 16 ...
McIntyre M - - 1997
Losartan potassium, an angiotensin II receptor antagonist, is the first of a new class of agents to be introduced for the treatment of hypertension. In this review, we describe the clinical pharmacology of losartan, including its pharmacokinetics in healthy, male volunteers and special patient groups, such as the elderly, patients ...
Keller C K - - 1996
Under semiambulatory conditions, 85 consecutive patients with the diagnosis of Type 2 diabetes of short duration (excluding patients with islet cell antibodies or maturity onset diabetes of the young) were admitted to a self-control training program and were examined in this study. A comprehensive renal assessment was performed, including evaluation ...
Napoli C - - 1996
BACKGROUND: Arterial hypertension is a significant risk factor for the high rate of cardiovascular disease in chronic uraemic (CU) patients. Any role that hypertension may play in CU patient outcomes assumes added significance. The elevation of some hormonal factors in early clinical stage could represent a valuable marker of cardiac ...
Battle R W - - 1996
STUDY OBJECTIVES: To characterize the prevalence of undiagnosed pulmonary hypertension in patients with limited and diffuse scleroderma. DESIGN: Prospective cross-sectional study. SETTING: University-based outpatient clinic. PATIENTS: Thirty-four consecutive patients with limited (n = 29) or diffuse (n = 5) scleroderma but without the clinical diagnosis of pulmonary hypertension. MEASUREMENTS AND ...
Letizia C - - 1996
The aim of the study was to evaluate possible changes of plasma endothelin-1 levels (ET-1) in patients with hypertension secondary to primary aldosteronism and pheochromocytoma. We enrolled in the study: 12 patients affected by aldosterone-producing adenoma (5 M and 7 W; mean age 42.1 +/- 17.2 years); 8 patients with ...
Nadersepahi A - - 1996
Twentyseven patients admitted for surgery for primary hyperparathyroidism were studied preoperatively. Fifteen were normotensive and 12 were either hypertensive, diastolic blood pressure > 95 mmHg or had a raised serum creatinine measuring 109.7 (55-171) mumol/l. The beta 2 microglobulin (beta 2M) urinary excretion was measured on all patients. The beta ...
Asami M - - 1996
Data on 746 patients with non-insulin-dependent diabetes mellitus (NIDDM) were collected from the Internal Medical Association in Himeji by questionnaire, and the patients were divided into six groups according to the duration of illness. Frequencies of various complications according to the duration of illness and risk factors of complications were ...
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