Search Results
Results 601 - 650 of 2354
< 8 9 10 11 12 13 14 15 16 17 18 >
Tucker Trevor W - - 2011
This paper hypothesizes that a stenosis or obstruction at a lower extremity of an internal jugular vein (IJV) would, in accordance with the physics of fluid dynamics, cause a standing pressure wave within the vein. This pressure wave would possess regions of large pressure fluctuations and other regions of relatively ...
Savi Augusto - - 2011
BACKGROUND: Predictor indexes are often included in weaning protocols and may help the intensive care unit (ICU) staff to reach expected weaning outcome in patients on mechanical ventilation. OBJECTIVE: The objective of this study is to evaluate the potential of weaning predictors during extubation. DESIGN: This is a prospective clinical ...
Rosengård-Bärlund Milla - - 2011
We have recently demonstrated that early autonomic dysfunction, defined as low baroreflex sensitivity (BRS), could be functional and reversible. However, potential temporal changes in BRS have not yet been addressed by longitudinal studies in type 1 diabetes. Moreover, it is not known whether low BRS predisposes to hypertension or other ...
Guichard Jason L JL University of Alabama at Birmingham, Birmingham, AL 35294-2041, - - 2011
Aging is often associated with increased systolic blood pressure and decreased diastolic blood pressure. Isolated systolic hypertension or an elevated systolic blood pressure without an elevated diastolic blood pressure is a known risk factor for incident heart failure in older adults. In the current study, we examined whether isolated diastolic ...
Caso Valeria - - 2011
Complete middle cerebral artery (MCA) stroke is a life-threatening condition, which can lead to death in the form of "malignant MCA syndrome"; characterized by massive brain edema and cerebral herniation. Moreover, patients with complete MCA infarct have high mortality due to complications. The aim of this study was to evaluate ...
Keller Geoffray - - 2011
OBJECTIVE: Passive leg raising (PLR) provides a reversible fluid-loading challenge and can be used to predict fluid responsiveness. The amount of blood volume recruited by this maneuver called stressed volume (Vs) is unknown. The present study aims to assess the quantitative effects of passive leg raising on venous return at ...
Szyszkowicz Mieczysław - - 2011
BACKGROUND: Numerous studies have reported associations between air pollution and cardiovascular diseases. While several studies illustrate that exposures to air pollutants can elevate blood pressure, few have evaluated the clinical relevance of this relationship. Hence, we aimed to explore the associations between daily concentrations of several air pollutants and emergency ...
Waaijman R - - 2011
BACKGROUND: In plantar pressure studies on diabetic footwear, both the maximum peak pressure (MPP) and peak pressure-time integral (PTI) are often reported. However, specific conclusions for each parameter are not commonly reported, suggesting these parameters may be interchangeable. The aim was to explore the interdependency of MPP and PTI in ...
Kaur Prabhdeep - - 2011
OBJECTIVES: Hypertension is a major public health problem with prevalence ranging 22-30% in urban India. There are few data on hypertension epidemiology in rural India. We conducted a survey to estimate prevalence, awareness, treatment, control and risk factors for hypertension in a rural population in south India. METHODS: We did ...
Mosti Giovanni - - 2012
This study was conducted to define bandage pressures that are safe and effective in treating leg ulcers of mixed arterial-venous etiology. In 25 patients with mixed-etiology leg ulcers who received inelastic bandages applied with pressures from 20 to 30, 31 to 40, and 41 to 50 mm Hg, the following ...
Korhonen Päivi E - - 2011
BACKGROUND: It has been shown that individuals with hypertension have poorer health-related quality of life (HRQoL) than normotensive individuals. However, little is known about the impact of high blood pressure and the awareness to have hypertension on HRQoL. METHODS: In this cross-sectional population-based study, we evaluated 901 cardiovascular risk patients ...
Khwannimit Bodin - - 2011
OBJECTIVES: The aim of this study was to assess and compare the ability of the automatically and continuously measured stroke volume variation (SVV) obtained by FloTrac/Vigileo, and pulse pressure variation (PPV) measured by an IntelliVue MP monitor, to predict fluid responsiveness in mechanically ventilated septic shock patients. METHOD: We conducted ...
Kim Kyu-Seop - - 2011
To determine the effect of the Honan intraocular pressure reducer (HIPR) on the rise in intraocular pressure (IOP) after an intravitreal injection using a tunneled scleral incision. This was a prospective, comparative, controlled, non-randomized clinical study. Sixty eyes of 60 patients who received intravitreal injections with the tunneled scleral technique ...
Gonzalez Maday C - - 2011
BackgroundPlasma renin activity (PRA) has been associated with cardiovascular disease mortality (CVD) events among hypertensive patients. We now report a long-term follow-up to assess the enduring association of PRA to CVD and all-cause mortality.MethodsParticipants (3,791) in a systematic hypertension treatment study had entry systolic blood pressure (BP) ≥140 mm Hg ...
Zimmermann A - - 2011
Purpose: Chronic limb ischemia (CLI) is a clinical diagnosis, but should be approved by technical tests like the ankle-brachial index (ABI). Although the ABI is well established, less is known about the influence of collateralization on clinical stage.Material/Methods: Magnetic resonance angiographies (MRA) of 129 lower extremities were searched for morphological ...
Skilton Michael R - - 2011
OBJECTIVE: Impaired fetal growth is associated with cardiovascular disease in adulthood. The mechanisms of this association remain poorly described. We aimed to determine the associations of impaired fetal growth and preterm birth with cardiovascular risk factors and arterial health in a large cohort of young adults. METHODS AND RESULTS: Carotid ...
Homsy Yves - - 2011
PURPOSE: We evaluated the efficacy and safety of tamsulosin hydrochloride in children with increased detrusor leak point pressure associated with neuropathic bladder. MATERIALS AND METHODS: In a double-blind, randomized, placebo controlled trial patients with detrusor leak point pressure 40 cm H(2)O or greater were stratified by age (2 to less ...
Werndle Melissa C - - 2011
The aim of this study was to examine how traumatic spinal cord injury is managed in the United Kingdom via a questionnaire survey of all neurosurgical units. We contacted consultant neurosurgeons and neuroanaesthetists in all neurosurgical centres that manage patients with acute spinal cord injury. Two clinical scenarios - of ...
Almirall Jaume - - 2011
BACKGROUND: Refractory arterial hypertension (RAH) is frequently associated to a non-dipping blood pressure (BP) pattern; this profile has been shown to have a worse clinical prognosis. It is a common clinical practice that patients receive anti-hypertensive medication preferentially in the morning. Non-dipping could be related to the timing of anti-hypertensive ...
Patil Pavan M - - 2012
To evaluate the safety and efficacy of an admixture of lidocaine with clonidine with regard to the anesthetic abilities, hemodynamic parameters, and postoperative pain control and to compare the results with those obtained with a lidocaine-epinephrine solution. A total of 50 patients with poorly controlled, moderate hypertension (American Society of ...
Glanzman Allan M - - 2011
The relationships between the Expanded Hammersmith Functional Motor Scale (HFMSE) and genotype and motor and respiratory outcomes were examined in patients with spinal muscular atrophy types II and III (n = 70). The correlation between the HFMSE and Gross Motor Function Measure was r = 0.98. Correlations between HFMSE and ...
Petrie Colin J - - 2011
BACKGROUND: In patients with cardiovascular disease, a high pulse pressure is related to an increased risk of cardiovascular events but in patients with advanced heart failure, a low pulse pressure is predictive of adverse (cardiovascular) events. AIM: We studied the prognostic importance of pulse pressure in a group of post-myocardial ...
He Zhiyong - - 2011
PURPOSE: Recognition of intraoperative hypovolemia is important for fluid management. Previous studies demonstrated functional preload parameter pulse pressure variation (PPV) could predict volume changes in response to fluid loading and loss. In this study, we examined the correlation between PPV and other two cardiac preload indicators, central venous pressure (CVP) ...
von Känel Roland R Department of General Internal Medicine, University of Bern, Switzerland. - - 2011
To test the hypothesis that cardiometabolic risk is attenuated when caregivers are relieved of caregiving stress when the caregiving recipient transitions out of the home. Longitudinal. Participants' homes. One hundred nineteen spousal caregivers of a patient with Alzheimer's disease (AD) and 55 noncaregiving controls (mean age of entire sample 75 ...
Zhang Aimin A Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan 48109-2029, USA. - - 2012
Lead exposure in adults is associated with hypertension. Altered prenatal nutrition is associated with subsequent risks of adult hypertension, but little is known about whether prenatal exposure to toxicants, such as lead, may also confer such risks. We investigated the relationship of prenatal lead exposure and blood pressure (BP) in ...
Ležaić Višnja - - 2011
Abstract Background and objective: Numerous screenings of chronic kidney disease (CKD) have been performed all over the world. This screening study was undertaken with the aim of estimating the prevalence of low glomerular filtration rate (eGFR) and microalbuminuria (MAU) and/or proteinuria in a population at risk for CKD and to ...
Lee Dae Woo - - 2011
STUDY OBJECTIVE: To estimate the effect of intraabdominal pressure and risk factors related to the occurrence of subcutaneous emphysema during laparoscopic surgery. DESIGN: Prospective randomized study (Canadian Task Force classification I). SETTING: University hospital. PATIENTS: Two hundred patients who underwent gynecologic laparoscopy because of benign gynecologic disease or cervical intraepithelial ...
Penzel T - - 2011
Obstructive sleep apnea (OSA) is a sleep disorder with a high prevalence that causes pathological changes in cardiovascular regulation during the night and also during daytime. We investigated whether the treatment of OSA at night by means of continuous positive airway pressure (CPAP) improves the daytime consequences. Twenty-eight patients with ...
Lee Vivian - - 2011
Elevated intraocular pressure-induced interlamellar stromal keratitis (PISK) is an entity of interface haze usually occurring weeks to months after laser in situ keratomileusis (LASIK) that is associated with elevated intraocular pressures and worsening with steroid treatment. There is evidence that this interface haze is the result of abnormal fluid dynamics ...
Roman Sabine S Department of Medicine, The Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611-2951, USA. - - 2012
This study aimed to refine the criteria for esophageal hypercontractility in high-resolution esophageal pressure topography (EPT) and to examine the clinical context in which it occurs. A total of 72 control subjects were used to define the threshold for hypercontractility as a distal contractile integral (DCI) greater than observed in ...
Fallo F - - 2011
BACKGROUND AND AIM: Low serum 25-hydroxyvitamin D [25(OH)D] levels may have an important role in predisposing to hypertension and myocardial disease. We investigated the relationship between 25(OH)D and left ventricular (LV) structure and function, assessed by echocardiography, in a series of patients with essential hypertension (EH). METHODS AND RESULTS: Sixty-two ...
Ligthart Suzanne A - - 2011
Background: There is little information on the prevalence of hypertension and other modifiable cardiovascular risk factors in community-dwelling elderly in the Netherlands and the potential impact of improving antihypertensive treatment on major cardiovascular events. Design: Cross-sectional analysis of Dutch community-dwelling subjects aged 70-78 years without dementia who were included in ...
Yang Song-Qing - - 2011
OBJECTIVE: This study aims to examine the impact of chronic intermittent hypoxia on hearts in patients with obstructive sleep apnea (OSA). METHODS: Two hundred twenty patients were divided into groups based on (1) severity of the disease, (2) years of disease history, and (3) with or without secondary hypertension. All ...
Weinberger Myron H - - 2011
The renin-angiotensin system (RAS) is a common link between hypertension and comorbidities of obesity and metabolic syndrome (MetS). We evaluated the antihypertensive efficacy and safety of the combination direct renin inhibitor, aliskiren, with amlodipine versus amlodipine alone in self-identified African Americans with stage 2 hypertension in a subgroup of patients ...
Abraham I - - 2011
BACKGROUND AND AIMS: Obesity combined with hypertension places patients at greater risk for target-organ damage and cardiovascular disease. The purpose of this secondary analysis was to identify physician- and patient-levels determinants of blood pressure (BP) values and predictors of uncontrolled BP through subgroup analysis by body mass index (BMI). METHODS ...
Di Rocco Concezio C Pediatric Neurosurgery, Catholic University Medical School, Policlinic A. Gemelli, Largo Agostino Gemelli, 8, 00168 Rome, - - 2011
[corrected] Hydrocephalus has been related to Chiari type I malformation (CIM) for a long time. The pathogenesis of this association is complex and still debated. A supratentorial hypertensive hydrocephalus may cause CIM, exerting pressure from above. Another pathogenetic hypothesis is based on the clinical and radiological data from patients affected ...
Sahlén Anders - - 2011
Background Elderly female hypertensives with arterial stiffening constitute a majority of patients with Heart Failure with preserved Ejection Fraction (HFpEF), a condition characterized by the inability to increase cardiac stroke volume (SV) with physical exercise. As SV is determined by the interaction between the left ventricle (LV) and its load, ...
Bokhari Sabahat - - 2011
BACKGROUND: -The clinical course in PAH is variable and there is limited information on the determinants and progression of RV dysfunction.. The objective is to develop PET metabolic imaging of the RV as a non-invasive tool in patients with pulmonary arterial hypertension (PAH). METHODS AND RESULTS: -We performed PET scanning ...
Hirooka Masashi - - 2011
Purpose:To prospectively correlate spleen elasticity and degree of portal hypertension estimated with the hepatic venous pressure gradient (HVPG) and to evaluate splenic elasticity as a predictor of gastroesophageal varices.Materials and Methods:The institutional review board approved this study, and patients provided written informed consent. In a pilot study of 60 patients ...
Sander Gary E - - 2011
Resistant hypertension (RH), defined simply, is blood pressure (BP) requiring the use of four or more antihypertensive agents, whether controlled or uncontrolled. RH is an increasingly common problem in elderly patients and may affect as many as 20% of the hypertensive population. Unfortunately, at least 30% of patients evaluated for ...
Agrawal Amit - - 2011
OBJECTIVE: To assess the efficacy of arginine vasopressin (AVP) as a rescue therapy in children with catecholamine refractory vasodilatory shock and its effect on various hemodynamic, clinical, and laboratory variables. METHODS: This prospective hospital based study was conducted from January 2008 through July 2008 at a tertiary pediatric cardiac critical ...
Voeller Rochus K - - 2011
Increased right atrial (RA) and ventricular (RV) chamber volumes are a late maladaptive response to chronic pulmonary hypertension. The purpose of the current investigation was to characterize the early compensatory changes that occur in the right heart during chronic RV pressure overload before the development of chamber dilation. Magnetic resonance ...
Christensen Kent Lodberg - - 2011
Essential hypertension (EH) is associated with structural changes of small arteries (SMASCH) in terms of wall thickening and lumen narrowing throughout the entire resistance circulation. This remodelling process occurs early in EH development and is an important contributor to the elevation of vascular resistance. SMASCH also decreases the vasodilatory capability ...
Cabrera-Benítez Nuria E - - 2011
OBJECTIVES:: Many mechanically ventilated patients with acute respiratory distress syndrome develop pulmonary fibrosis. Stresses induced by mechanical ventilation may explain the development of fibrosis by a number of mechanisms (e.g., damage the alveolar epithelium, biotrauma). The objective of this study was t test the hypothesis that mechanical ventilation plays an ...
Wang Zhi-Hao - - 2011
Eur J Clin Invest 2011 ABSTRACT: Backgrounds  Metabolic syndrome (MetS) is a multiple risk factor paradigm widely considered in risk management. We aimed to investigate carotid artery alterations in MetS and the underlying risk factors. Materials and methods  A total of 400 Chinese subjects were recruited, divided into control (n = 200) ...
Hoshide Satoshi - - 2011
To determine the role of home blood pressure (BP) monitoring for a reproducible assessment of orthostatic hypertension (OHT) and the effectiveness of hypertension control by doxazosin. In this study, 605 medicated hypertensive outpatients were enrolled. Home BP in the sitting and standing positions was monitored in all patients in the ...
Roberts Russel - - 2011
OBJECTIVE:: To measure the impact of a national propofol shortage on the duration of mechanical ventilation. DESIGN:: Before-after study. SETTING:: Three, noncardiac surgery, adult intensive care units at a 320-bed academic medical center. PATIENTS:: Consecutive patients requiring mechanical ventilation ≥48 hrs, administered a continuously infused sedative ≥24 hrs, extubated, and ...
Hanratty Rebecca - - 2011
Hypertension is an important cause of chronic kidney disease (CKD). Identifying risk factors for progression to CKD in patients with normal kidney function and hypertension may help target therapies to slow or prevent decline of kidney function. Our objective was to identify risk factors for development of incident CKD and ...
Moreau Caroline - - 2011
Abstract Given the high oxygen consumption of motor neurons, we sought to assess the frequency and prognostic value of arterial hypertension (affecting brain's oxygen supply) in amyotrophic lateral sclerosis (ALS). We consecutively and prospectively included all ALS patients with regular medical follow-up and documented blood pressure measurements and monitored them ...
Lee Heow Pueh - - 2011
Partial inferior turbinectomy is typically performed on patients suffering from chronic nasal obstruction due to hypertrophy of inferior turbinates and is refractory to other more conservative treatments. The effects of the various options of incision performed on the inferior turbinate in terms of the resulting nasal airflow pattern are examined ...
< 8 9 10 11 12 13 14 15 16 17 18 >