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Omari Taher I - - 2012
INTRODUCTION: The measurement of the physical extent of opening of the upper esophageal sphincter (UES) during bolus swallowing has to date relied on videofluoroscopy. Theoretically luminal impedance measured during bolus flow should be influenced by luminal diameter. In this study we measured the UES nadir impedance (lowest value of impedance) ...
Handlin Linda - - 2012
Abstract Objective: This study investigated possible influences of medical interventions during labor on maternal blood pressure during a breastfeed 2 days postpartum. Subjects and Methods: Sixty-six primiparae with normal deliveries were consecutively recruited. Blood pressure was measured at -5, 10, 30, and 60 minutes during a morning breastfeed 2 days ...
Gakwaya Simon - - 2012
BACKGROUND: Negative airway pressure loading such as seen during obstructive apnea/hypopnea may influence upper airway (UA) mechanical properties. We measured the effects of such loading on UA mechanical properties during wakefulness and assessed the potential link with night-time apnea worsening. METHODS: Twitch stimulations of the phrenic nerve were applied before ...
Takagi Shunsuke - - 2012
To evaluate the relationship between body mass index (BMI) and blood pressure (BP) elevation during electroconvulsive therapy (ECT). Descriptive epidemiological study. Operating room of a university-affiliated hospital. All patients who received ECT at the Tokyo Metropolitan Hiroo Hospital from May 2005 to March 2009. All patients received routine ECT treatment. ...
Fu Q - - 2012
Respiration variation in arterial pulse pressure (ΔPP) and pulse oximetry plethysmographic waveform amplitude (ΔPOP) are accurate predictors of fluid responsiveness in mechanically ventilated patients. We hypothesized that stroke volume variation (SVV) and pleth variability index (PVI) can predict fluid responsiveness in mechanically ventilated patients during major surgical procedures in Hans ...
Yiallourou Stephanie R - - 2012
Abnormal blood pressure control is implicated in the sudden infant death syndrome (SIDS). However, no data exist on normal development of blood pressure control during infancy. This study assessed maturation of autonomic control of blood pressure and heart rate during sleep within the first 6 months of life. Term infants ...
Masdeu Maria J - - 2012
Patients with obstructive sleep apnea may have difficulty exhaling against positive pressure, hence limiting their acceptance of continuous positive airway pressure (CPAP). C-Flex is designed to improve comfort by reducing pressure in the mask during expiration proportionally to expiratory airflow (3 settings correspond to increasing pressure changes). When patients use ...
Hepponstall J Michele - - 2012
RATIONALE: High-frequency jet ventilation (HFJV) is often used to treat infants with pathologies associated with gas trapping and abnormal lung mechanics, who are sensitive to the adverse effects of suction. OBJECTIVE: This study aimed to investigate the effect of closed suction (CS), catheter size, and the use of active post-suction ...
Mascarenhas Sérgio - - 2012
The Monro-Kellie doctrine states that the interior of the cranium is formed of three main components: blood, fluid and cerebral parenchyma. An increase in the volume of one or more components may increase the intracranial pressure (ICP). This doctrine also affirms that the skull cannot be expanded after the closure ...
Van Zundert T C R V - - 2012
We test the hypothesis that there are differences in performance among three extra-glottic airway devices during spontaneous breathing anaesthesia. One hundred and fifty consecutive patients (ASA Grade 1-2, aged 18-80 yr) were randomly allocated for airway management with the i-gel (Intersurgical Ltd, Wokingham, Berkshire UK), the LMA-ProSeal and the LMA-Supreme ...
Schmitt Melanie - - 2012
We implemented ventricular infusion studies on 33 patients suspected of idiopathic normal pressure hydrocephalus (iNPH), benign intracranial hypertension (BIH) or occlusive hydrocephalus (HOC) in order to confirm shunt indications. The initial scope was to study O(2) supply during infusion tests to exclude further violation of already vulnerable brains during ICP ...
Santamarta D - - 2012
The complexity of the intracranial pressure (ICP) signal decreases with intracranial hypertension in children with acute brain injury as well as during infusion studies in adults with hydrocephalus. In this study we have analysed the pressure signal obtained in the lumbar subarachnoid space during infusion testing. The pulse amplitude rises ...
Chen I-Ju - - 2012
Introduction. Intradialytic hypotension (IDH) is a common complication during hemodialysis which may increase mortality risks. Low dose of Korean red ginseng (KRG) has been reported to increase blood pressure. Whether KRG can improve hemodynamic stability during hemodialysis has not been examined. Methods. The 8-week study consisted of two phases: observation ...
Lee Su Hyun - - 2012
Stress-induced cardiomyopathy (SICM) presenting as an acute myocardial dysfunction is characterized by transient left ventricular wall motion abnormality, which has been known to be associated with excessive catecholamine production caused due to various types of stress. Sympathetic hyperactivity is common during the perioperative period, and reports of SICM occurring during ...
Rubinger Dvora - - 2012
The mechanisms of intradialytic increases in blood pressure are not well defined. The present study was undertaken to assess the role of autonomic nervous system activation during intradialytic hypertensive episodes. Continuous interbeat intervals (IBI) and systolic blood pressure (SBP) were monitored during hemodialysis in 108 chronic patients. Intradialytic hypertensive episodes ...
A'roch Roman - - 2012
Tissue velocity echocardiography is increasingly used to evaluate global and regional cardiac function. Previous studies have suggested that the quantitative measurements obtained during ejection are reliable indices of contractility, though their load-sensitivity has been studied in different settings, but still remains a matter of controversy. We sought to characterize the ...
Le Victoria P - - 2012
Blood pressure increases significantly during embryonic and postnatal development in vertebrate animals. In the mouse, blood flow is first detectable around embryonic day (E) 8.5(1). Systolic left ventricular (LV) pressure is 2 mmHg at E9.5 and 11 mmHg at E14.5(2). At these mid-embryonic stages, the LV is clearly visible through ...
Esquinas Rodriguez Antonio M - - 2012
Inadequate gas conditioning during non-invasive ventilation (NIV) can impair the anatomy and function of nasal mucosa. The resulting symptoms may have a negative effect on patients' adherence to ventilatory treatment, especially for chronic use. Several parameters, mostly technical aspects of NIV, contribute to inefficient gas conditioning. Factors affecting airway humidity ...
Morimont Philippe - - 2012
Peak first derivative of femoral artery pressure (arterial dP/dtmax) derived from fluid-filled catheter remains questionable to assess left ventricular (LV) contractility during shock. The aim of this study was to test if arterial dP/dtmax is reliable for assessing LV contractility during various hemodynamic conditions such as endotoxin-induced shock and catecholamine ...
Zhang Yi - - 2012
To investigate blood flow (BF) in the human retina/choroid during rest and handgrip isometric exercise using magnetic resonance imaging (MRI). Four healthy volunteers (25-36 years old) in multiple sessions (1-3) on different days. MRI studies were performed on a 3-Tesla scanner using a custom-made surface coil (7×5cm in diameter) at ...
Matsumura Kenta - - 2012
Frequent fish consumption is related to a lower risk of coronary heart disease. However, the physiological mechanisms underlying this cardioprotective effect are as yet unknown. We therefore examined certain cardiovascular physiological variables of fish eaters during rest, whilst conducting mental arithmetic, and during recovery. The participants were 12 fish eaters ...
Khazaei Majid - - 2012
In this study, we investigated the role of exogenous NO donor, sodium nitroprusside (SNP), on hemodynamic responses and survival rate during decompensated hemorrhagic shock in normotensive and hypertensive rat. Male wistar rats were divided into normotensive and hypertensive groups (n = 12 each). Then, the animals were subjected to decompensated ...
Trueb Lionel - - 2012
Nitric oxide (NO) regulates arterial pressure by modulating peripheral vascular tone and sympathetic vasoconstrictor outflow. NO synthesis is impaired in several major cardiovascular disease states. Loss of NO-induced vasodilator tone and restraint on sympathetic outflow could result in exaggerated pressor responses to mental stress. We, therefore, compared the sympathetic (muscle ...
Meyburgh D - - 2012
To assess the relationships between progression of target-organ damage and cardiovascular, cortisol and coping responses in black urban Africans. Urban black African gender groups (n = 200) aged 21-62 years from the Sympathetic Activity and Ambulatory Blood Pressure in Africans study were stratified into normotensive and hypertensive groups. Resting and ...
Laciuga Helena - - 2012
Expiratory muscle strength training (EMST) is a rehabilitative program that has been tested for outcomes related to respiratory muscle strength, cough, swallow, and voice function in healthy young adult, elderly individuals, and in patients with progressive neurodegenerative disease. Because EMST has been used in patient care, the associated cardiovascular responses ...
Mc Causland Finnian R FR Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02446, USA. - - 2012
Intradialytic hypotensive events are common among hemodialysis patients and are associated with a variety of patient- and procedure-related factors, including intradialytic decline in plasma osmolality. Prior studies and practice have suggested that administration of osmotically active drugs may ameliorate blood pressure decline during chronic hemodialysis. Clinical and treatment data were ...
Tung Jonathan D JD Hamilton Glaucoma Center and Department of Ophthalmology, University of California, San Diego, La Jolla, California, - - 2012
To investigate the 24 h effects of bimatoprost 0.01% monotherapy on intraocular pressure (IOP) and ocular perfusion pressure (OPP). Prospective, open-label experimental study. Single tertiary ophthalmic clinic. Sixteen patients with diagnosed primary open-angle glaucoma (POAG) or ocular hypertension (ages, 49-77 years). Baseline data of 24 h IOP in untreated patients ...
Latus Joerg J Department of Internal Medicine, Division of Nephrology, Robert-Bosch Hospital, Stuttgart, Germany. - - 2012
A 56-year-old woman was admitted to hospital due to stress-dependent hoarseness and hypertensive urgency. The patient reported peaks of blood pressure of 210/160 mm Hg in combination with hoarseness. With indirect mirror examination, the ear-nose-and throat doctor diagnosed a paralysis of the vocal cord on the left side. The authors ...
Sollazzi L - - 2011
During a retroperitoneoscopic adrenalectomy in the prone position, a sudden increase in end-Tidal CO2 (EtCO2) (from 42 to 68 mmHg) followed by an abrupt decrease (from 68 to 35 mmHg) was observed, concomitantly with a right adrenal vein laceration. Heart rate decreased to 30 bpm, and the systolic blood pressure ...
Pérez-Soriano Pedro - - 2011
Nordic walking (NW), characterized by the use of two walking poles, is becoming increasingly popular (Morgulec-Adamowicz, Marszalek, & Jagustyn, 2011). We studied walking pressure patterns of 20 experienced and 30 beginner Nordic walkers. Plantar pressures from nine foot zones were measured during trials performed at two walking speeds (preferred and ...
Vigani Alessio - - 2011
To compare cardiovascular and respiratory effects of an inspiratory impedance threshold device (ITD) in dogs before and after induction of acute hemorrhagic shock. Prospective experimental randomized study. Eight healthy adult dogs. Dogs were anesthetized and maintained on spontaneous ventilation. Tidal volume (V(T)), systolic, mean and diastolic arterial blood pressure (SAP, ...
Ferrigno M - - 2011
Nitrogen (N2) narcosis could interfere with deep submarine escapes, particularly in the escape trunk, where simple but essential tasks are required in order to leave the submarine and start rapid ascent. In a previous study, we had suggested that prolongation of lungs-to-brain circulation time (LBct) may have a protective effect ...
Frolov V A - - 2011
The study analyzed changes in parameters of the central and intracardiac hemodynamics during the development of experimental arterial hypertension, which were assessed as the adaptive in nature. The development of hypertension demonstrated staging of the adaptive processes. The development of the adaptive responses was characterized by changes in the magnitude ...
García-Parra Jesús - - 2011
The application of hydrostatic high pressure on an industrial line of nectarine (Prunus persica L.) purées was assessed in comparison with the traditional thermal treatment of pasteurization. Changes after thermal processing (85 °C, 5 min) and after high-pressure processing (HPP: 450 or 600 MPa for 5 or 10 min) and ...
Czernichow Sébastien - - 2011
The benefits of reducing blood pressure are well established, but there remains uncertainty about whether the magnitude of the effect varies with the initial blood pressure level. The objective was to compare the risk reductions achieved by different blood pressure-lowering regimens among individuals with different baseline blood pressures. Thirty-two randomized ...
Lagi Alfonso - - 2011
Objective. The events characterizing the very last part of the vasovagal crisis has not been determined. The aim of the study was to analyze the variations in respiratory pattern preceding the vaso-vagal syncope full-blown and the relationship between cardiovascular functions in order to assess the temporal sequence. Methods. Eleven consecutive ...
Bipat Robbert - - 2011
Hypoxia may play a role in the development of renal failure in donated kidneys. In the present study, the effects of hypoxia on isolated blood-perfused rabbit kidneys were investigated and the effects of mannitol were explored, giving special attention to intratubular pressure. Kidneys were perfused with their autologous blood during ...
Nafisi Vahid Reza - - 2011
Fuzzy controllers are being used in various control schemes. The aim of this study is to adjust the hemodialysis machine parameters by utilizing a fuzzy logic controller (FLC) so that patient's hemodynamic condition remains stable during hemodialysis treatment. For this purpose, a comprehensive mathematical model of the arterial pressure response ...
Lederer Wolfgang - - 2011
Air embolism (AE) is a potential complication during transthoracic needle biopsy (TNB). The authors report on venous and systemic AE during CT-guided TNB under general anaesthesia. During the intervention, the radiologist observed accumulation of air bubbles in the left heart chambers, in the right subclavian vein, the superior vena cava ...
Saleheen Danish - - 2010
Cardiovascular diseases (CVD) are increasing at an alarming rate in South Asia. High blood pressure is a modifiable risk factor for CVD. In this study, we evaluated the control of blood pressure and the prevalence of cardiovascular risk factors in patients with hypertension. A cross-sectional study was conducted in 50 ...
Talukder M A Hassan - - 2011
Cigarette smoking is a major independent risk factor for cardiovascular disease. While the association between chronic smoking and cardiovascular disease is well established, the underlying mechanisms are incompletely understood, partly due to the lack of adequate in vivo animal models. Here, we report a mouse model of chronic smoking-induced cardiovascular ...
Feneis Jennifer F - - 2010
Hypovitaminosis D is suspected to be linked to several types of cancer, metabolic syndrome, cardiovascular disease, and all-cause mortality. This review explores the relationship of vitamin D to blood pressure and hypertension, a major cardiovascular disease risk factor. The literature up to June 2009 was searched without language or time ...
Swiston John Robert - - 2010
There is a lack of consensus on factors that predict mortality in idiopathic pulmonary arterial hypertension (IPAH). Tests that can accurately predict prognosis are needed to guide treatment and counsel patients. We conducted a systematic review to identify factors that prognosticate mortality in IPAH. Study design, cohort size, comparison method, ...
Pilz Stefan - - 2010
Vitamin D deficiency is highly prevalent and may contribute to arterial hypertension. The antihypertensive effects of vitamin D include suppression of renin and parathyroid hormone levels and renoprotective, anti-inflammatory and vasculoprotective properties. Low 25-hydroxyvitamin D levels, which are used to classify the vitamin D status, are an independent risk factor ...
Novak Vera - - 2010
The relationship between blood pressure (BP) and cognitive outcomes in elderly adults has implications for global health care. Both hypertension and hypotension affect brain perfusion and worsen cognitive outcomes. The presence of hypertension and other vascular risk factors has been associated with decreased performance in executive function and attention tests. ...
Hayes Wesley - - 2011
Intradialytic hypotension (IDH) is common in children during conventional, 4 hour haemodialysis (HD) sessions. The declining blood pressure (BP) was originally believed to be caused by ultrafiltration (UF) and priming of the HD circuit, however emerging data now supports a multifactorial aetiology. Therefore strategies to improve haemodynamic stability need to ...
Burr Jeffrey A - - 2011
This study examined the relationship between volunteer activity and hypertension, a risk factor for cardiovascular disease, renal failure, and cognitive impairment. Employing data from the Health and Retirement Study, we estimated regression models of hypertension status that include volunteer activity and psychosocial and health behavior risk factors for middle-aged and ...
Huang Jin-Nan - - 2011
Many spiders possess myrmecomorphy, and species of the jumping spider genus Myrmarachne exhibit nearly perfect ant mimicry. Most salticids are diurnal predators with unusually high visual acuity that prey on various arthropods, including conspecifics. In this study, we tested whether predation pressure from large jumping spiders is one possible driving ...
Sudano Isabella - - 2010
Because traditional nonsteroidal antiinflammatory drugs are associated with increased risk for acute cardiovascular events, current guidelines recommend acetaminophen as the first-line analgesic of choice on the assumption of its greater cardiovascular safety. Data from randomized clinical trials prospectively addressing cardiovascular safety of acetaminophen, however, are still lacking, particularly in patients ...
Lee Kathy K - - 2011
Diverticular disease is a common cause for lower gastrointestinal bleeding. Although the hemorrhage often resolves spontaneously, some patients will require massive transfusions and emergency surgery. In this study we report risk factors predictive of severe diverticular bleeds. We completed a retrospective analysis of 99 patients, admitted with lower gastrointestinal bleeding ...
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