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Results 251 - 300 of 2355
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Huijben Auke M T - - 2011
BACKGROUND:: Aortic augmentation index (AIx) but not carotid-femoral pulse wave velocity (cfPWV) has reported to decrease in response to vasodilators, which has been related to changes in the timing and/or intensity of wave reflection. Yet, recent evidence indicates that arterial reservoir pressure rather than wave reflection is the most important ...
Yano Yuichirou - - 2011
BackgroundOur aim was to assess whether home blood pressure (HBP) and ambulatory BP monitoring measurement (ABPM), in addition to office BP (OBP) predict changes of cardiovascular biomarkers during antihypertensive treatment.MethodsTwo hundred and fifty-two hypertensive patients (mean age, 68 years; men: 41%) underwent measurements of OBP, HBP, ABPM, and cardiovascular biomarkers ...
Head Geoffrey A - - 2011
OBJECTIVE:: Although most national guidelines for the diagnosis and management of hypertension emphasize that the initiation and modification of blood pressure (BP)-lowering treatment should be related to absolute cardiovascular disease (CVD) risk, there is only limited information on how to incorporate ambulatory BP (ABP) monitoring into this framework. The objective ...
Eastwood Glenn M - - 2011
Background and Objective: Patients are at risk of haemodynamic instability when starting continuous renal replacement therapy (CRRT). Methods: We compared data for 'routine-protocol' pump speed increases of 50 ml/min over 1-4 min with 'slower' increases of 20-50 ml/min over 3-10 min to achieve an operating blood flow of 200 ml/min. ...
Reiberger T - - 2012
Liver stiffness (LS) correlates with portal pressure (hepatic venous pressure gradient, HVPG). However, the dynamic components of portal hypertension (PHT) in advanced cirrhosis may not be adequately assessed by TE. The influence of treatment with non-selective β-blockers (NSBB) on the correlation of HVPG and LS has not been investigated. One ...
Aydin Adem - - 2011
OBJECTIVE: Electroconvulsive therapy (ECT) consists of controlled convulsive seizure by electric stimulation of the brain. Although various electrocardiographic (ECG) changes have been reported during ECT, atrial conduction has not been studied extensively. The aim of the present study was to assess the effects of ECT on systemic arterial blood pressure ...
Kellert Lars - - 2011
Background: The relevance of blood pressure variability (BPV) in the development of intracerebral hemorrhage (ICH) after intravenous thrombolysis (IVT) in acute stroke still remains uncertain. Methods: 427 consecutive patients treated with IVT in the years 2007-2009 were studied. Blood pressure (BP) values were analyzed from admission to follow-up imaging scan ...
Ismail-Beigi Faramarz - - 2012
A reduction of either blood pressure or glycemia decreases some microvascular complications of type 2 diabetes, and we studied here their combined effects. In total, 4733 older adults with established type 2 diabetes and hypertension were randomly assigned to intensive (systolic blood pressure less than 120 mm Hg) or standard ...
Sain Milenka - - 2011
The aim of present study was to assess the impact of decreasing single bolus dose of nadroparin on blood pressure in patients on hemodialysis (HD). Forty HD patients were included in this study. The bolus dose of nadroparin was decreased twice by 25%; this lower dose was maintained for last ...
Gill James R - - 2011
Exsanguination from hemodialysis vascular sites may cause a rapid death. Due to extensive blood loss at the scene, investigators may initially suspect a homicide or suicide. We reviewed 100 deaths due to hemorrhage from hemodialysis shunt sites. The majority (81%) of these hemorrhages occurred at home and 44% subsequently died ...
Ilies C - - 2011
BACKGROUND: /st>Arterial pressure (AP) monitoring should be accurate, easy to use, free of risks, and ideally continuous. The continuous non-invasive arterial pressure (CNAP) device is non-invasive and provides continuous pressure readings. This study was performed to compare the agreement of CNAP and invasive AP monitoring. METHODS: /st>Ninety patients undergoing surgery ...
Carugo S - - 2011
scant information is available on the alterations in cardiac structure and function characterizing very elderly people as well as on their relationships to clinic and ambulatory blood pressure (BP) values. In 106 subjects aged 95.3 ± 3.7 years (mean ± standard deviation, 89 nonagenarians and 17 centenarians) in good clinical ...
Schloss Bryan - - 2011
BACKGROUND: Unintended hyperinflation of the cuff of a laryngeal mask airway (LMA) has been associated with increased airway morbidity and postoperative pain. While the manufacturers recommend a cuff pressure of less than 60cmH(2)O, in usual clinical practice, there is no method used to determine intracuff pressure of an LMA. The ...
Stucke Samantha - - 2012
Based on the hypothesis that diabetic foot lesions have a mechanical etiology, extensive efforts have sought to establish a relationship between ulcer occurrence and plantar pressure distribution. However, these factors are still not fully understood. The purpose of this study was to simultaneously record shear and pressure distributions in the ...
Fogel Mark A - - 2011
OBJECTIVES: To quantify right ventricular output power and efficiency and correlate these to ventricular function in patients with repaired tetralogy of Fallot. This might aid in determining the optimal timing for pulmonary valve replacement. METHODS: We reviewed the cardiac catheterization and magnetic resonance imaging data of 13 patients with tetralogy ...
Gee Marianne E - - 2011
Patients with hypertension are advised to lower their blood pressure to <140/90 mm Hg through sustained lifestyle modification and/or pharmacotherapy. To describe the use of lifestyle changes for blood pressure control and to identify the barriers to these behaviors, the data from 6,142 Canadians with hypertension who responded to the ...
Yaron Marianna - - 2011
Abstract Low diastolic blood pressure (DBP) is commonly seen in well-controlled hypertensive subjects. We evaluated arterial properties in 53 hypertensive subjects with low on-treatment DBP (<70 mm Hg; LODP), 54 subjects with normal BP and spontaneously low DBP (SLDP), and 52 treated hypertensive subjects with DBP ≥70 mm Hg (HNDP). ...
Dussol Bertrand - - 2012
Furosemide is the diuretic of choice for the treatment of hypertension in chronic kidney disease but the adaptative changes in the distal nephron may decrease its efficacy. Hydrochlorothiazide is not believed to be efficient in this setting. In a randomized, double-blind, cross-over trial, 23 patients with hypertension and stage 4 ...
Meenakshisundaram Ramachandran - - 2011
Abstract Background: Hypertension is associated with end-organ damage (EOD). Since EOD is a risk factor for cardio- and cerebrovascular complications, it is a major requirement for these to be detected, prevented, and treated. Objective: The objectives of our study were to determine out the prevalence of EOD in newly detected ...
Theisen Silke - - 2011
Objective.  To examine the effect of pressure ulcers in older patients on the length of stay in hospital. Background.  Previous research on this topic did not focus solely on older people. A growing number of older people require hospital admission. Design.  A retrospective observational study. Methods.  Data of 3198 patients ...
SiƄski Maciej - - 2011
Carotid chemoreceptors provoke an increase in muscle sympathetic nerve activation (MSNA) in response to hypoxia; they are also tonically active during normoxic breathing. The contribution of peripheral chemoreceptors to sympathetic activation in hypertension is incompletely understood. The aim of our study was to investigate the effect of chemoreceptor deactivation on ...
Clemente Ana Paula Grotti - - 2011
BACKGROUND: Studies have shown that pre/postnatal undernutrition leads to higher risk of non communicable diseases such as diabetes, hypertension and obesity in adulthood. OBJECTIVE: To determine whether overweight adolescents with mild stunting [height-for-age Z scores (HAZ) in the range <-1 to >-2] have higher blood pressure than overweight individuals with ...
Julius Stevo - - 2011
A high heart rate (HR) predicts future cardiovascular events. We explored the predictive value of HR in patients with high-risk hypertension and examined whether blood pressure reduction modifies this association. The participants were 15,193 patients with hypertension enrolled in the Valsartan Antihypertensive Long-term Use Evaluation (VALUE) trial and followed up ...
Cahan Amos - - 2011
BackgroundAntihypertensive β-blocker use is associated with greater intervisit blood pressure variability (BPV) and with less favorable outcomes compared to other antihypertensive agents. A theoretical model demonstrated that accuracy and precision of BP measurement are affected by heart rate (HR) at a constant cuff deflation rate. We aimed to examine the ...
Pingitore Alessandro - - 2011
BACKGROUND: Lack of increase in left ventricular (LV) stroke volume (SV) during low-dose dobutamine stress (LDD) is attributed to exhausted cardiac contractile reserve in failing heart. However, the role of the afterload and preload in SV changes is underestimated. The aim of the study was to investigate the effects of ...
Sipahi Ilke - - 2011
BACKGROUND AND PURPOSE: Compared with normotensive individuals, there is a higher incidence of stroke in patients with hypertensive, as well as prehypertensive, blood pressure levels (ie, 120-139/80-89 mm Hg). Although several studies have shown that blood pressure reduction in hypertensive patients reduces the incidence of cardiovascular events, including stroke, it ...
Lauscher P - - 2011
BACKGROUND: /st>Changes in heart rate variability (HRV) during anaesthesia depend on multiple influences such as hypnosis, analgesia, surgical stress, and interacting drugs. Several recent studies have aimed to establish HRV-based monitoring tools to measure perioperative stress or anaesthetic depth. Although hyperoxic ventilation (HV) is known to alter autonomic cardiovascular regulation, ...
Sim John J - - 2012
Although hypertension guidelines have utility in treating uncomplicated hypertension, they often overlook the pathophysiologic basis and heterogeneity of hypertension. This may explain the relatively poor hypertension control rates. A proposed approach is to guide addition and subtraction of medications using ambulatory plasma renin activity (PRA) values. To evaluate the heterogeneity ...
Hermida Ramón C - - 2011
BackgroundIndependent studies have found that elevated sleep-time blood pressure (BP) is a better predictor of cardiovascular risk than the awake or 24-h BP means in patients without as well as with diabetes. However, the impact of the alteration over time of ambulatory BP on cardiovascular risk has never been investigated. ...
Ray Gretchen M - - 2012
In 2005 the American Heart Association (AHA) released updated recommendations for blood pressure (BP) monitoring in order to ensure accurate BP measurements. To determine if current methods of BP assessment in an ambulatory clinic result in significantly different BP measurements than those obtained by following the AHA recommendations and if ...
Huang Chin-Hua - - 2011
Transfusion-related acute lung injury is a serious complication of blood transfusions. Herein is a report on a 32-year-old woman who developed diffuse pulmonary infiltrates and acute respiratory compromise after blood transfusion. Non-cardiogenic pulmonary edema was diagnosed based on data calculated by hemodynamic monitoring system but severe hypoxemia persisted despite conventional ...
Feldman Jeffrey M - - 2012
To compare simultaneous measurements of pulse pressure variation (PPV) and pleth variability index (PVI) in patients undergoing spinal fusion. To determine if PVI can be used as a surrogate for PPV and also the influence of the prone position on these measurements. Spine fusion is an involved surgical procedure requiring ...
Romanelli Robert J - - 2011
BACKGROUND:Despite treatment for hypertension, blood pressure (BP) remains uncontrolled in many individuals. Identification of patterns in BP control may inform strategies to improve treatment and optimize health outcomes.OBJECTIVE:To examine patterns in BP control among individuals receiving antihypertensive treatment in a diverse, community-based provider network.METHODS:In this retrospective exploratory analysis, a total ...
Civelek Senol - - 2011
OBJECTIVES/HYPOTHESIS: To evaluate the effect and obtain a pressure value of continuous positive airway pressure (CPAP) under direct visualization using drug-induced sleep endoscopy (DISE) and compare the pressure values with values obtained using conventional CPAP. STUDY DESIGN: Prospective, double-blinded, cohort study. METHODS: Sixteen patients with obstructive sleep apnea syndrome (OSAS) ...
Acosta Alisa A - - 2011
OBJECTIVE: To measure the prevalence of persistent prehypertension in adolescents. STUDY DESIGN: We collected demographic and anthropometric data and 4 oscillometric blood pressure (BP) measurements on 1020 students. The mean of the second, third, and fourth BP measurements determined each student's BP status per visit, with up to 3 total ...
Hebert Paul L - - 2012
Treated but uncontrolled hypertension is highly prevalent in African American and Hispanic communities. To test the effectiveness on blood pressure of home blood pressure monitors alone or in combination with follow-up by a nurse manager. Randomized controlled effectiveness trial. Four hundred and sixteen African American or Hispanic patients with a ...
Mom T T Service d'ORL et de chirurgie cervicofaciale, hôpital Gabriel-Montpied, CHU de Clermont-Ferrand, 30 place Henri-Dunant, Clermont-Ferrand, France. - - 2012
Still today, Menière's disease (MD) can be definitively diagnosed only on post-mortem findings of endolymphatic hydrops. Otoacoustic emission (OAE) phase has been shown to be highly sensitive to intracranial pressure. Preliminary analysis of OAEs in MD patients indicated high sensitivity to slight variations in intracranial pressure. The principal objective of ...
Eide Per Kristian - - 2011
Symptomatic overdrainage of cerebrospinal fluid (CSF) can be seen in shunted hydrocephalus patients and in non-shunted patients with spontaneous intracranial hypotension (SIH). In these patients, intracranial pressure (ICP) monitoring often reveals negative static ICP, while it is less understood how the pulsatile ICP (cardiac induced ICP waves) is affected. This ...
Sims A J - - 2011
BACKGROUND: /st>We have developed a technique for measuring a characteristic of the tracheal tube (TT)-trachea interface: the leak conductance (LC). This study aimed to validate the technique in the laboratory and to compare LC with measurements of fractional volume loss (FVL) in neonates undergoing mechanical ventilation. METHODS: /st>LC, expressed as ...
Stein Howard - - 2011
OBJECTIVE: To report our experience using neurally adjusted ventilatory assist (NAVA), which allows a patient to synchronize spontaneous respiratory effort with mechanical ventilation, in the neonatal intensive care unit in neonates weighing <1500 g. STUDY DESIGN: This was a retrospective review performed between May 2008 and May 2009. A total ...
Suárez Carmen - - 2011
Despite the well documented benefits conferred by adequate control of hypertension, the majority of hypertensive patients display suboptimal control and few patients achieve blood pressure (BP) levels <140/90 mmHg. As a consequence, combination therapy will be required in the majority of patients to achieve target BP. Fixed-dose combinations of antihypertensives not ...
Tsioufis Costas - - 2011
Objectives: To investigate the inter-relationships of osteoprotegerin (OPG) with albumin to creatinine ratio (ACR) and asymmetric dimethylargine (ADMA) in hypertensive patients. Methods: In 198 untreated non-diabetic hypertensive patients [130 males, mean age = 51.5 years, office blood pressure (BP) = 152/98 mmHg] ACR values and OPG and ADMA levels were ...
Pidaparti Ramana M - - 2011
Better understanding of airway mechanics is very important in order to avoid lung injuries for patients undergoing mechanical ventilation for treatment of respiratory problems in intensive-care medicine, as well as pulmonary medicine. Mechanical ventilation depends on several parameters, all of which affect the patient outcome. As there are no systematic ...
Zhang Yi - - 2011
The purpose of this study was to investigate the association of autonomic nervous system dysregulation with blood pressure variability. Among the 2370 participants in the X-CELLENT study, 577 patients (59.0±10.2 years) were randomly selected to participate in an ancillary ambulatory blood-pressure monitoring study. We proposed a novel autonomic nervous system ...
Vallabhajosula Sailaja - - 2011
Pulmonary hypertension is a complex disorder with multiple etiologies. The World Health Organization Group 5 (unclear multifactorial mechanisms) includes patients with thyroid disorders. The authors reviewed the literature on the association between hyperthyroidism and pulmonary hypertension and identified 20 publications reporting 164 patients with treatment outcomes. The systolic pulmonary artery ...
Lovisi Julio Cesar Moraes - - 2011
INTRODUCTION: The role of aldosterone in the pathophysiology of the metabolic syndrome (MS)-related endothelial dysfunction has been the subject of recent research. OBJECTIVE: To evaluate the effects of aldosterone blockade on flow-mediated vasodilation (FMD) and on renal and metabolic parameters of patients with the MS. METHODS: 19 MS subjects underwent ...
Vidal Valérie - - 2011
We report the experimental study of the degassing dynamics through a thin layer of shear-thinning viscoelastic fluid when a constant air flow is imposed at its bottom. The fluid is an aqueous solution of cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal). Over a large range of parameters, the air is ...
Clond Morgan A - - 2011
This analysis explored the association between gender and systolic blood pressure (SBP) in trauma patients and then established how gender influenced outcomes in those with elevated SBP. Demographics and outcomes were compared using the Los Angeles County Trauma System Database and multivariable modeling determined predictors for SBP, pneumonia, and mortality. ...
Modrall J Gregory - - 2012
The goal of the study was to determine the blood pressure (BP) response to renal artery stenting (RAS) for patients with hypertension urgency, hypertension emergency, and angina with congestive heart failure (angina/congestive heart failure [CHF]). Patients who underwent RAS for hypertension emergencies (n = 13), hypertension urgencies (n = 25), ...
Palma G - - 2011
The benefit of coarctation repair on the resolution of systolic hypertension in adults has been questioned. Between March 1997 and July 2009, 65 consecutive adult patients (≥16 years) underwent repair of aortic coarctation. There were 40 men (65%) and 25 women (35%) with a mean age of 22.3±4.8 years (range, ...
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