Search Results
Results 201 - 250 of 2360
< 1 2 3 4 5 6 7 8 9 10 >
Swift Dale - - 2012
Hydrocephalus in patients with achondroplasia is thought to be due to increased dural sinus venous pressure resulting from narrowing of the jugular foramen. In this setting, where hydrocephalus is presumed to be "vascular" in origin and therefore communicating, endoscopic third ventriculostomy (ETV) would seem contraindicated. The authors describe 3 patients ...
Bruce Tracey A - - 2012
Pressure ulcers are an increasing health care problem. Accurate identification and classification of pressure ulcers impacts patient outcomes, health care costs, and quality initiatives.To identify existing evidence related to answering the question "Does bedside nursing staff accurately and reliably stage pressure ulcers as evidenced in their documentation?" Further evidence from ...
Boerrigter Bart - - 2012
It is generally known that positive pressure ventilation is associated with impaired venous return and decreased right ventricular output, in particular in patients with a low right atrial pressure and relative hypovolaemia. Altered lung mechanics have been suggested to impair right ventricular output in COPD, but this relation has never ...
Bito Seiji - - 2012
Objectives To evaluate if 'wrap therapy' using food wraps, which is widely used in Japanese clinical sites, is not inferior when compared to guideline adhesion treatments. Design Multicentre, prospective, randomised, open, blinded endpoint clinical trial. Setting 15 hospitals in Japan. Patients 66 older patients with new National Pressure Ulcer Advisory ...
Moore Laurel E - - 2012
Maintaining adequate cerebral perfusion pressure (CPP) is of clinical concern in patients with neurological injury. Although there are extensive data on CPP in the ICU setting, there has been little quantitative study of CPP in the intraoperative setting. We retrospectively analyzed the electronic intraoperative records of neurosurgical and trauma patients ...
Chang Ke-Vin - - 2012
The study aim was to assess sympathetic vasomotor response (SVR) by using pulsed wave Doppler (PWD) ultrasound in patients with multiple system atrophy (MSA) and correlate with the tilt table study. We recruited 18 male patients and 10 healthy men as controls. The SVR of the radial artery was evaluated ...
Ishikawa Masatsune - - 2012
The cerebrospinal fluid (CSF) tap test (TT) has been regarded as an important test for the prediction of shunt effectiveness in patients with suspected idiopathic normal pressure hydrocephalus (iNPH). Although its specificity and sensitivity are reportedly high, there remains some disagreement over this point. Herein, the TT as a test ...
Ros M - - 2012
Intracranial pressure is mainly considered to be hydrostatic pressure, but observations demonstrated that ICP is heterogeneous within brain suggesting the presence of a solid pressure. Brain tissue is a biphasic material composed of solid and fluid phases. We hypothesized that in a saturated porous model, fluid and solid phases yielded ...
Grossman Ehud - - 2012
A myriad variety of therapeutic agents or chemical substances can induce either a transient or persistent increase in blood pressure, or interfere with the blood pressure-lowering effects of antihypertensive drugs. Some agents cause either sodium retention or extracellular volume expansion, or activate directly or indirectly the sympathetic nervous system. Other ...
Marjanovic Ivan - - 2012
Purpose. To assess the retrobulbar hemodynamic parameters in the ophthalmic artery (OA), central retinal artery (CRA), and short posterior ciliary arteries (PCA) after decreasing elevated intraocular pressure (IOP) in patients with open-angle glaucoma (OAG) by using color Doppler imaging. Methods. A total of 46 eyes from 46 patients with OAG, ...
Rolle Teresa - - 2012
Purpose. To evaluate the efficacy, safety, and tolerability of Timogel® preservative-free once daily compared to timolol 0.5% ophthalmic solution bid in patients with ocular hypertension (OHT) and patients with primary open-angle glaucoma (POAG). Methods. A total of 75 patients with OHT and patients with POAG treated with timolol 0.5% bid ...
Mathew M - - 2012
An adolescent boy presented with headache, bilateral papilloedema, growth retardation and absent secondary sexual characteristics. The diagnosis of intracranial hypertension was confirmed by increased intracranial pressure and normal neuroimaging of the brain except for partial empty sella and prominent perioptic cerebrospinal fluid (CSF) spaces. Evaluation showed an erythrocyte sedimentation rate ...
de Matos Gustavo F J - - 2012
The benefits of higher positive end expiratory pressure (PEEP) in patients with acute respiratory distress syndrome (ARDS) have been modest, but few studies have fully tested the "open-lung hypothesis". This hypothesis states that most of the collapsed lung tissue observed in ARDS can be reversed at an acceptable clinical cost, ...
Van Buren Peter N PN Division of Nephrology, Department of Internal Medicine, The University of Texas Southwestern Medical Center-Dallas, Dallas, Texas, USA. - - 2012
Hypertension is common in hemodialysis patients and contributes to this population's high risk for cardiovascular morbidity and mortality. Patients with intradialytic hypertension, or increases in blood pressure during hemodialysis, have been shown to have the highest risk for these outcomes. The purpose of this review is to describe new findings ...
Brouwers H Bart - - 2012
Intracerebral hemorrhage is a devastating disease, and no specific therapy has been proven to reduce mortality in a randomized controlled trial. However, management in a neuroscience intensive care unit does appear to improve outcomes, suggesting that many available therapies do in fact provide benefit. In the acute phase of intracerebral ...
Chrissicopoulos Christos - - 2012
Normal pressure hydrocephalus (NPH) represents a common disorder among older people with mild elevation of cerebrospinal fluid pressure and certain clinical manifestations. We present a patient with such a disorder in whom a programmable valve was implanted. With the use of a lower opening pressure, the patient developed a subdural ...
Czosnyka Marek - - 2012
The mathematical model of cerebrospinal fluid (CSF) pressure volume compensation, introduced by Anthony Marmarou in 1973 and modified in later studies, provides a theoretical basis for differential diagnosis in hydrocephalus. The Servo-Controlled Constant Pressure Test (Umea, Sweden) and Computerised Infusion Test (Cambridge, UK) are based on this model and are ...
Biglino Giovanni G Centre for Cardiovascular Imaging, UCL Institute of Cardiovascular Science, London, UK. - - 2012
The aim of this study was to build a mock circulatory system replicating in vitro the hemodynamics following the Norwood procedure and testing patient-specific anatomies focusing on the effect of aortic coarctation. Three anatomies were reconstructed from magnetic resonance images and rapid prototyped with transparent rigid resin. The models presented ...
Jespersen Brian B Department of Pharmacology and Toxicology, Michigan State University, - - 2012
In multiple fields of study, access to the circulatory system in laboratory studies is necessary. Pharmacological studies in rats using chronically implanted catheters permit a researcher to effectively and humanely administer substances, perform repeated blood sampling and assists in conscious direct measurements of blood pressure and heart rate. Once the ...
Williams Daryl Lindsay - - 2012
We conducted a randomised single-blind controlled trial comparing the LMA-Unique (LMAU) and the AMBU AuraOnce (AMBU) disposable laryngeal mask in spontaneously breathing adult patients undergoing general anaesthesia. Eighty-two adult patients (ASA status I-IV) were randomly allocated to receive the LMAU or AMBU and were blinded to device selection. Patients received ...
Gaieski David F - - 2011
BACKGROUND: Therapeutic hypothermia (TH) has revolutionized the management of comatose post-cardiac arrest syndrome (PCAS) patients. The 2008 ILCOR/AHA Consensus Statement for the treatment of PCAS suggests that goal-directed therapy, targeting mean arterial pressure (MAP), central venous pressure (CVP), and central venous oxygen saturation (ScvO(2)), should be employed to normalize oxygen ...
Aoki Mitsuhiro M Department of Otolaryngology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City 501-1194, Japan. - - 2012
There is little definitive evidence of the clinical significance of the vestibular-cardiovascular reflex in humans, despite the fact that the vestibular system is known to contribute to cardiovascular control in animals. The present study involved 248 dizzy patients (127 male patients and 121 female patients) aged 65 years and younger. We ...
Tonelli Adriano R - - 2012
Little is known about the association between left ventricular (LV) diastolic dysfunction and outcomes in patients with idiopathic or heritable pulmonary arterial hypertension (PAH). Our rationale was to investigate the prevalence of LV diastolic dysfunction, and its association with disease severity and outcomes, in patients with idiopathic or heritable PAH. ...
Smith Tony P - - 2011
PURPOSE: To determine the difference in hepatic venous pressures measured with the use of an end-hole diagnostic catheter versus a balloon catheter. MATERIALS AND METHODS: A total of 92 patients underwent transjugular hepatic venous pressure measurements with a 5-F diagnostic end-hole catheter and a balloon catheter, with the catheter type ...
Robert Yves C A - - 2011
By measuring the ocular pulse amplitude (OPA), the dynamic contour tonometer (DCT) assesses intraocular pressure (IOP). Hypothesizing that OPA is characteristic for the IOP when considered with the systemic arterial blood pressure, we assumed the ratio of ocular and arterial pulsation amplitudes is larger in glaucoma patients. Bi-ocular DCT-OPA assessment ...
Flythe Jennifer E - - 2011
BACKGROUND: Although blood pressure lability during hemodialysis has long been recognized, little is known about factors that promote nonsystematic intradialytic blood pressure variability. STUDY DESIGN: Prospective observational cohort. SETTING & PARTICIPANTS: Random cluster sample of 218 prevalent hemodialysis patients treated at 5 participating DaVita Dialysis units. PREDICTORS: Clinical variables that ...
Ittermann Till - - 2011
Objective:It is currently unclear whether subclinical thyroid dysfunction is associated with blood pressure. Furthermore, data on the potential relation of thyroid function with blood pressure in children and adolescents are sparse. We investigated the association between serum TSH levels and blood pressure in a population-based study conducted in children aged ...
Wada Yasuaki - - 2011
Background: The time interval between the onset of early transmitral flow velocity (E) and that of early diastolic mitral annular velocity (e') (T(E-e')) is a good predictor of elevated left ventricular (LV) filling pressure in patients with sinus rhythm. Although the evaluation of LV filling pressure using E/e' has been ...
Brattmo Marianne - - 2011
Abstract Conclusion: In this physiological study subjects with Meniere's disease (MD) had high resistance to opening of the eustachian tube (ET) in three of four provocation tests. These subjects can be exposed to pressure deviations in the middle ear (ME) above their equalizing capacity. Transmission of the pressure deviations to ...
Park Jonas J-H - - 2011
Abstract Conclusion: Repetitive portable tympanometry is a feasible method to examine long-term middle ear pressure profile. This method might be suitable for detecting patients with Meniere's disease whose middle ear pressure shows intermittently pathological values. Objectives: Contradictory study results regarding middle ear pressure in patients with Meniere's disease might be ...
Roque Pedro J - - 2011
PURPOSE: We sought to determine whether dilation of the optic nerve sheath diameter (ONSD), as detected at the bedside by emergency ultrasound (US), could reliably correlate with patient blood pressure and whether there was a blood pressure cutoff point where you would start to see abnormal dilation in the ONSD. ...
Redon Josep - - 2011
BACKGROUND: The morning blood pressure (BP) surge is associated with a peak increase in vascular events. OBJECTIVE: The aim of this observational study was to evaluate morning BP control in treated hypertensive patients using home BP (HBP) monitoring and to compare these findings with clinic BP control. METHODS: Clinic BP ...
Okutucu Sercan - - 2011
OBJECTIVE: The aim of the present cross-sectional study was to evaluate ventricular repolarization dynamics by QT dynamicity in normotensive and hypertensive individuals with either a non-dipper-type or a dipper-type circadian rhythm of blood pressure (BP). METHODS: A total of 103 patients were allocated into four groups as follows: (i) normotensive/dipper, ...
Sandrim V C - - 2011
We examined whether vascular endothelial growth factor (VEGF) polymorphisms (C-2578A, G-1154A and G-634C) are associated with hypertension, response to antihypertensive therapy and nitric oxide (NO) formation. Substudy 1 compared the distribution of VEGF genotypes and haplotypes in 178 patients with arterial hypertension (100 whites and 78 blacks) and 186 healthy ...
Uzu Takashi - - 2011
BACKGROUND: There is little evidence regarding the target blood pressure level in patients with type 2 diabetes mellitus without overt proteinuria. METHODS AND RESULTS: We followed 608 Japanese patients with type 2 diabetes without apparent cardiovascular disease and overt proteinuria who underwent cerebral magnetic resonance imaging for a mean of ...
Dhand Rajiv - - 2011
Abstract In selected patients, noninvasive positive pressure ventilation (NIPPV) with a facemask is now commonly employed as the first choice for providing mechanical ventilation in the intensive care unit (ICU). Aerosol therapy for treatment of acute or acute-on-chronic respiratory failure in this setting may be delivered by pressurized metered-dose inhaler ...
Aries Marcel J H - - 2012
There is uncertainty whether bilateral near infrared spectroscopy (NIRS) can be used for monitoring of patients with acute stroke. The NIRS responsiveness to systemic and stroke-related changes was studied overnight by assessing the effects of brief peripheral arterial oxygenation and mean arterial pressure alterations in the affected versus nonaffected hemisphere ...
Lukito Vimaladewi - - 2011
OBJECTIVE: Fluid challenge is often used to predict fluid responsiveness in critically ill patients. Inappropriate fluid expansion can lead to some unwanted side effects; therefore, we need a noninvasive predictive parameter to assess fluid responsiveness. We want to assess the hemodynamic parameter changes after passive leg raising, which can mimic ...
Matveevskii Alexander S - - 2011
A method of administering continuous positive airway pressure via a new airway device to prevent upper airway obstruction and preserve spontaneous respiration under total intravenous anesthesia has been adapted for children undergoing deep sedation for MRI studies. Presented herein is a retrospective study of 45 pediatric patients, ages 5 months to ...
Marazzi Giuseppe - - 2011
INTRODUCTION: Self-monitoring home blood pressure (BP) devices are currently recommended for long-term follow-up of hypertension and its management. Some of these devices are integrated with algorithms aimed at detecting atrial fibrillation (AF), which is common essential hypertension. This study was designed to compare the diagnostic accuracy of two widely diffused ...
Gil Cano A - - 2011
OBJECTIVE: To describe the incidence and main clinical characteristics of barotrauma during open lung ventilation (OLV). DESIGN: A retrospective, observational, descriptive study was made of 100 patients with acute respiratory failure and bilateral pulmonary infiltrates. INTERVENTIONS: 1) A lung recruitment maneuver (LRM) with fixed ventilation pressure and progressive positive end-expiratory ...
Grapsa Julia - - 2011
The aims of this study were to assess the right ventricle in different causes of pulmonary hypertension (PH) and to assess the changes of the tricuspid apparatus during this remodeling. The functional and morphologic changes of the right ventricle and the tricuspid apparatus in relation to different causes of PH ...
Mediavilla García Juan Diego - - 2012
The incidence of hypertension is high in the elderly and is present in 2/3 of the patients older than 65 years. Prevalence can reach 90% in patients older than 80 years. The presence of isolated systolic hypertension (ISH) is characteristic of this population. However, the prevalence of hypertension by ambulatory ...
Lansdorp B - - 2011
BACKGROUND: /st>Dynamic indices, including pulse pressure, systolic pressure, and stroke volume variation (PPV, SPV, and SVV), are accurate predictors of fluid responsiveness under strict conditions, for example, controlled mechanical ventilation using conventional tidal volumes (TVs) in the absence of cardiac arrhythmias. However, in routine clinical practice, these prerequisites are not ...
Manouras Aristomenis - - 2011
BACKGROUND: The ratio of the early transmitral flow velocity to the early diastolic tissue velocity (E/E(m)) has been suggested as a reliable estimate of left ventricular diastolic pressures (LVDP). However, the evidence regarding the ability of E/E(m) to detect LVDP changes is relatively equivocal. Our aim was to evaluate the ...
Shantsila Alena - - 2011
BACKGROUND: Previous studies have confirmed that cardiac structural and functional abnormalities exist in patients with malignant hypertension (MHT). The effect of long-term blood pressure control in MHT patients on cardiac structure and function is still unknown. METHODS: We performed detailed left ventricle (LV) assessment using two-dimensional (2DE) and three-dimensional (3DE) ...
Ogura Makoto - - 2012
Hypertension is a leading cause of cardiovascular (CV) disease in the general population. Although hypertension is very common in maintenance hemodialysis (HD) patients, adequate blood pressure (BP) values and measurement timing have not been defined. A total of 49 hypertensive HD patients were recruited. Average age was 63 ± 11 ...
Choma N N - - 2011
Aims:  To determine the proportion of patients who achieved blood pressure control during the 2 years following new diabetes diagnosis. Methods:  A retrospective cohort of veterans ≥ 18 years with hypertension who initiated a diabetes medication from 2000 to 2007 in the Veterans Administration Mid-South Network was assembled. Blood pressure control at diabetes ...
Bassareo Pier Paolo - - 2011
Objective:  Cardiovascular complications that are probably related to the loss of arterial elasticity, such as secondary hypertension, occur frequently in patients with acromegaly and may persist after the condition has been treated. The aim of the study was to determine arterial compliance in adolescent patients with acromegaly who had undergone ...
Okada Tomonari - - 2011
OBJECTIVE: Home blood pressure (HBP) has been found to be a predictor of the progression of chronic kidney disease (CKD). The objective of this study is to clarify the clinical significance of day-by-day HBP variability on the progression of CKD. METHODS: We recruited 135 patients with stage 3-5 CKD, who ...
< 1 2 3 4 5 6 7 8 9 10 >