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Results 101 - 150 of 1690
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Roman S - - 2011
Background  Inhibition of transient lower oesophageal sphincter relaxations (tLESRs) has become one of the most relevant therapeutic objectives in patients with reflux symptoms resistant to proton pump inhibitors. tLESRs are currently detected by oesophageal perfused-sleeve manometry (PSM), but oesophageal high resolution manometry (HRM), which combines closely spaced pressure sensors and ...
Yanagisawa Hiroki - - 2011
Hyperbaric air therapy (HBA) is a treatment in which an animal is exposed to air pressurized to about 1.3 atmosphere absolute (ATA). Although HBA has already been administered to humans in medical applications, it has not been reported in clinical veterinary medicine. Therefore, we aimed to determine a safe protocol ...
Ishibashi Ryo - - 2011
The rapidly developing interest in nanofluidics, which is used to examine liquids on an order that ranges from an attoliter to a femtoliter, correlates with the recent interest in decreased sample amounts, such as in the field of single-cell analysis. For general nanofluidic analysis, the fact that a pressure-driven flow ...
Kobayashi Ryosuke - - 2011
A 10-month-old cat was diagnosed with congenital subvalvular aortic stenosis. To resolve its hypoxia, oxygen therapy was administered a couple of times a week during two months. The oxygen partial pressure in the chamber was maintained between 30 and 35%, and the time for one procedure was 12-24 hr. The ...
Yang Jian - - 2011
Low or negative pressure transients in water distribution systems, caused by unexpected events (e.g. power outages) or routine operation/maintenance activities, are usually brief and thus are rarely monitored or alarmed. Previous studies have shown connections between negative pressure events in water distribution systems and potential public health consequences. Using a ...
Kesteloot Hugo H Central Laboratory, Akademisch Ziekenhuis St. Rafael, Leuven, - - 2011
Data indicate an inverse association between dietary calcium and magnesium intakes and blood pressure (BP); however, much less is known about associations between urinary calcium and magnesium excretion and BP in general populations. The authors assessed the relation of BP to 24-hour excretion of calcium and magnesium in 2 cross-sectional ...
Gopinath B - - 2011
Very few studies have explored links between physical activity, sedentary behaviors and blood pressure (BP) in early adolescence. We aimed to assess the association between a range of sedentary activities (screen time, television (TV) viewing, computer usage, video game usage and time spent in homework or reading) and BP in ...
Sabater-Hernández Daniel - - 2011
Objective: To determine whether age, gender, body mass index (BMI), community pharmacy blood pressure (CPBP), daytime ambulatory BP (ABP) variability, treatment compliance, number of anti-hypertensive drugs and smoking status are factors associated with the community pharmacy white-coat effect (CPWCE) in treated hypertensive patients. Setting: Eight community pharmacies in Gran Canaria, ...
Hirst Hayong - - 2011
Uncontrolled hemorrhage is one of the leading causes of death in both combat and civilian trauma. This study was designed to compare the arterial blood pressures at which rebleeding occurred when a hemostatic agent, ExcelArrest™, was used compared with a standard pressure dressing. This study was a prospective, experimental, and ...
Spotnitz Mathew E ME Department of Surgery, Columbia University Medical Center, New York, NY 10032-3784, USA. - - 2011
To assess the stability of cardiac output, mean arterial pressure, and systemic vascular resistance during biventricular pacing (BiVP) optimization. Substudy analysis of data collected as part of a randomized controlled study examining the effects of optimized temporary BiVP after cardiopulmonary bypass (CPB). A single-center study at a university-affiliated tertiary care ...
Loupec Thibault - - 2011
: To investigate whether the pleth variability index, a noninvasive and continuous tool, can predict fluid responsiveness in mechanically ventilated patients with circulatory insufficiency. : Prospective study. : Surgical intensive care unit of a university hospital. : Forty mechanically ventilated patients with circulatory insufficiency in whom volume expansion was planned ...
Huffmyer Julie L - - 2011
The intrathoracic pressure regulator (ITPR) (CirQLator; Advanced Circulatory Systems Inc, Roseville, Minn) is a novel, noninvasive device intended to increase cardiac output and blood pressure in hypovolemic or cardiogenic shock by generating a continuous low-level intrathoracic vacuum in between positive pressure ventilations. Although there are robust data supporting the benefit ...
Uneke C J - - 2011
Healthcare-associated infection (HAI) is a major but often neglected public health problem. Most attention to HAI prevention is given to high-risk invasive diagnostic and therapeutic healthcare tools, while the importance of less critical tools tends to be underestimated. This study was designed to assess the potential contributory role played by ...
Vasilevskis Edgars - - 2011
OBJECTIVE. The aim of this study was to clarify the role of different mechanisms in nerve injury during arm abduction positions. The tasks were to determine the strain deformation of the plexus brachialis during arm abduction, to measure the pressures in the neurovascular bundle in the cervico-costoclavicular-axillary area, and evaluate ...
Elias S O - - 2011
Salt-sensitivity increases the risk for the development of high blood pressure in susceptible persons and also increases the risk for cardiovascular events and mortality. The study is to determine the pattern of salt-sensitivity among normotensive and hypertensive Nigerians. Twenty-eight (28) hypertensive subjects (HT) and twenty-five (25) age-matched normotensive controls (NT) ...
Wu Jie - - 2011
Prehypertension and prediabetes are major risk factors of cardiovascular disease, and their combined presence may result in more serious cardiovascular outcomes than expected with either prehypertension or prediabetes alone. The aim of the present study was to evaluate the prevalence of coexisting prehypertension and prediabetes, and the associated risk profiles ...
Paiva Carlos Eduardo - - 2011
Ambulatory blood pressure monitors have been used in salt loading and depletion protocols. However, the agreement between measurements made using ambulatory blood pressure monitors and those made with the sphygmomanometer has not been evaluated. The objective of this study was to compare the concordance of the two methods of blood ...
Schwienbacher Martin - - 2011
Inhalation of N-chlorotaurine (NCT), an endogenous new broad spectrum non-antibiotic anti-infective, has been shown to be very well tolerated in the pig model recently. In the present study, inhaled NCT was tested for tolerability and efficacy in the infected bronchopulmonary system using the same model. Anesthetized pigs were inoculated with ...
Hodgkinson J J Primary Care Clinical Sciences, University of Birmingham, Edgbaston, Birmingham B15 - - 2011
To determine the relative accuracy of clinic measurements and home blood pressure monitoring compared with ambulatory blood pressure monitoring as a reference standard for the diagnosis of hypertension. Systematic review with meta-analysis with hierarchical summary receiver operating characteristic models. Methodological quality was appraised, including evidence of validation of blood pressure ...
Mai Thanh Duc - - 2011
Pressure assisted capillary electrophoresis in capillaries with internal diameters of 10μm was found possible without significant penalty in terms of separation efficiency and sensitivity when using contactless conductivity detection. A sequential injection analysis manifold consisting of a syringe pump and valves was used to impose a hydrodynamic flow in the ...
Mori Etsuro - - 2010
The symptoms of idiopathic normal pressure hydrocephalus (iNPH) are generally seen in aged, and iNPH has been overlooked or misdiagnosed. In Japan, since the Clinical Guidelines were published, remarkable progress are noted in the recognition of it and clinical researches for it. In this paper, recent progress diagnostic measures for ...
Aliverti Andrea - - 2010
Expulsive maneuvers (EMs) caused by simultaneous contraction of diaphragm and abdominal muscles shift substantial quantities of blood from the splanchnic circulation to the extremities. This suggests that the diaphragm assisted by abdominal muscles might accomplish ventilation and circulation simultaneously by repeated EMs. We tested this hypothesis in normal subjects by ...
Anderson Dorothy J - - 2010
Health care workers in a rural community hospital were queried about factors associated with blood pressure (BP) accuracy. Results suggest remedial education regarding cuff size, patient position, arm position, and location for accurate BP measurement is needed.
Abe Takakuni - - 2010
Hypertrophic obstructive cardiomyopathy (HOCM) involves marked hypertrophy of cardiac muscle, resulting in myocardial ischemia and arrhythmia because of left ventricular diastolic dysfunction. In perioperative management of HOCM, hemodynamic stabilization is required, by prevention of arrhythmia and tachycardia and maintenance of preload and afterload. Here, we describe anesthesia management during cesarean ...
Zahra Michael - - 2010
BACKGROUND: Spinal cord injury (SCI) produces acute hemodynamic alterations through disruption of sympathetic output of the autonomic nervous system and places individuals with SCI at high risk of secondary ischemic insult to the spinal cord as well as to other organs. The purpose of this study was to examine hemodynamics ...
Gulick Dawn T - - 2011
The purpose of this study was to assess the effectiveness of ischemic pressure on myofascial trigger point (MTrP) sensitivity. Randomized, controlled study with the researcher assessing MTrP sensitivity blinded to the intervention. Twenty-eight people with two MTrPs in the upper back musculature. The sensitivity of two MTrPs in the upper ...
Vázquez Beatriz Y Salazar - - 2010
The hematocrit (Hct) of awake hamsters was lowered to 90% of baseline by isovolemic hemodilution using hamster plasma to determine the acute effect of small changes in Hct and blood viscosity on systemic hemodynamics. Mean arterial blood pressure increased, reaching a maximum of about 10% above baseline (8.6 +/- 5.5 ...
Singletary Gretchen E - - 2010
OBJECTIVE: To evaluate the effect of medetomidine-butorphanol sedation on serum cardiac troponin I (cTnI) concentration, a marker of myocardial ischemia and injury, in healthy dogs undergoing pre-surgical radiographs for orthopedic procedures. STUDY DESIGN: Prospective clinical study. ANIMALS: Twenty client-owned dogs with no history of cardiac disease. METHODS: Dogs were evaluated ...
Lamotte Michel - - 2010
BACKGROUND: Resistance training has been introduced into rehabilitation to improve the efficiency of the 1980s traditional training. Among the modalities, the choice of recovery period length or repetition speed is hardly explained in term of functional benefit but not in terms of cardiovascular (CV) response. To our knowledge, no investigation ...
De Backer Daniel - - 2010
PURPOSE OF REVIEW: To discuss the role of microcirculatory abnormalities in critically ill patients and the link between systemic hemodynamics and microvascular perfusion. RECENT FINDINGS: Microcirculatory alterations have been repeatedly observed in patients with severe sepsis, but recent findings show that these also occur in patients with severe heart failure ...
Slagt Cornelis - - 2010
BACKGROUND AND OBJECTIVE: We studied the evolution of software in the accuracy of the FloTrac/Vigileo system to measure cardiac output less invasively from arterial pressure waveform analysis without calibration, in comparison with pulmonary artery catheter-derived thermodilution measurements, in patients with septic shock and presumed alterations in vascular tone. METHODS: Nine ...
Naeije Robert - - 2010
Altitude exposure is associated with major changes in cardiovascular function. The initial cardiovascular response to altitude is characterized by an increase in cardiac output with tachycardia, no change in stroke volume, whereas blood pressure may temporarily be slightly increased. After a few days of acclimatization, cardiac output returns to normal, ...
Bergman Remco - - 2010
BACKGROUND AND OBJECTIVE: Mild therapeutic hypothermia (MTH) is used after out-of-hospital cardiac arrest (OHCA) to minimize cerebral damage. Induced hypothermia may further interfere with cardiac function and influence haemodynamics after OHCA. METHODS: This was a prospective study of haemodynamic variables in 50 consecutive patients with OHCA treated with MTH. Patients ...
Takai Hideaki - - 2010
Hemostatic procedures and control of blood pressure concomitant with rapid transfusion of blood products aimed at recovery of coagulability are necessary for intractable bleeding during cardiac surgery. However, when the bleeding is massive and hemostasis is prolonged for several hours, operative maneuvers such as manual compression of the heart can ...
Potts Amanda L - - 2010
BACKGROUND: Dexmedetomidine has opposing effects on the cardiovascular system. Action in the central nervous system produces sympatholysis and a reduction in blood pressure, while peripherally it causes vasoconstriction leading to an increase in blood pressure. The purpose of our study is to define the concentration-response profile for these hemodynamic effects ...
Böettger Simon F - - 2010
The measurement of cardiac output in critically ill patients is complicated by rapid pathophysiological changes. The aim of this study was to compare the recently developed Arterial Pressure Cardiac Output algorithm (APCO) with transpulmonary thermodilution (TDCO). Clinical and hemodynamic parameters were tested for their impact on the measurements. Twenty septic ...
Absi Mohammed Ali - - 2010
The present article explores some of the newer noninvasive techniques for monitoring cardiac output in the pediatric population. These new techniques can be utilized in both a wide variety of patient sizes and the unique pathology of congenital cardiopathy. These techniques may assist in optimizing therapy in the intensive care ...
Paulsson Anna K - - 2010
Chronic pressure overload to the heart leads to cardiac hypertrophy and failure through processes that involve reorganization of subcellular compartments and alteration of established signaling mechanisms. To identify proteins contributing to this process, we examined changes in nuclear-associated myofilament proteins as the murine heart undergoes progressive hypertrophy following pressure overload. ...
Tabrizchi Reza - - 2010
The cardiovascular effects of interleukin 2 (IL2), were investigated in animals pretreated with indomethacin. Bolus intravenous administration of IL2 alone caused a significant reduction in cardiac output over time. Pretreatment with indomethacin significantly accentuated the reduction in cardiac output produced by IL2. The administration of IL2 or indomethacin alone or ...
Van Zundert T - - 2010
The effects of blood solubility, cardiac output and ventilation on the rise of the alveolar towards the inspired concentration, the F(A)/F(I) curve, of an inhaled anaesthetic are often thought to reflect how these factors affect wash-in of the central nervous system compartment and, therefore, speed of induction because F(A) is ...
Arai Tatsuya - - 2010
Cardiac output (CO) and stroke volume (SV) are the key hemodynamic parameters to be monitored and assessed in ambulatory and critically ill patients. The purpose of this study was to introduce and validate a new algorithm to continuously estimate, within a proportionality constant, CO and SV by means of mathematical ...
Cecconi Maurizio - - 2010
Pulse pressure analysis algorithms are commonly used to measure cardiac output and to allow for the rational titration of therapy in critically ill patients. The ability of these algorithms to accurately track changes in stroke volume (and cardiac output) is thus very important. Most of the currently available algorithms can ...
Zhang Guanqun - - 2010
We recently proposed a technique to estimate relative cardiac output (CO) change by unique long time interval analysis (LTIA) of a radial arterial blood pressure waveform. Here, we evaluated the technique in 169 critically ill patients, while comparing it to previous "pulse contour analysis" techniques, using the public MIMIC II ...
Sugimachi Masaru - - 2010
In our extended Guyton's model, the ability of heart to pump blood is characterized by a cardiac output curve and the ability of vasculature to pool blood by a venous return surface. These intersect in a three-dimensional coordinate system at the operating right atrial pressure, left atrial pressure, and cardiac ...
Camporota Luigi - - 2010
The accuracy of the arterial pressure-based cardiac output FloTrac-Vigileo system remains unacceptably low during haemodynamic instability. Data show that the measurement of cardiac output (CO) is strongly influenced by changes in factors that affect arterial blood pressure (ABP) - for example, vascular tone and compliance and the arterial site - ...
Hamzaoui Olfa - - 2010
We sought to examine the cardiac consequences of early administration of norepinephrine in severely hypotensive sepsis patients hospitalized in a medical intensive care unit of a university hospital. We included 105 septic-shock patients who already had received volume resuscitation. All received norepinephrine early because of life-threatening hypotension and the need ...
Takeda Norifumi - - 2010
Fibroblasts, which are the most numerous cell type in the heart, interact with cardiomyocytes in vitro and affect their function; however, they are considered to play a secondary role in cardiac hypertrophy and failure. Here we have shown that cardiac fibroblasts are essential for the protective and hypertrophic myocardial responses ...
Nakagawa Kiyoshi - - 2010
In management of canine cardiac disorders, cardiac drugs are commonly administered with food, although the cardiovascular effects of feeding and frequency of feeding are unknown. This study investigated the cardiovascular effect of feeding and frequency of feeding using a telemetry monitoring system in unanesthetized and unrestrained dogs. Systolic and diastolic ...
Zangrillo Alberto - - 2010
OBJECTIVE: The authors investigated the accuracy and precision of the pressure recording analytic method (PRAM) in cardiac index measurement compared with thermodilution in unstable patients, a setting in which minimally invasive monitoring devices often fail. DESIGN: Criterion standard. SETTING: Intensive care unit. PATIENTS: Thirty-two consecutive patients with low cardiac output ...
de Jong R M - - 2009
Haemodynamic monitoring may potentially lead to improved quality of care in haemodynamic compromised patients. However, the usefulness of invasive techniques using the pulmonary artery catheter is questioned. Noninvasive techniques which provide data on haemodynamics might provide a good alternative. New techniques have been developed in recent years to monitor cardiac ...
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