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Mikolajczak Stefanie S *University of Cologne, Department of Otorhinolaryngology, Head and Neck Surgery; †University of Cologne, Institute of Medical Statistics, Informatics and Epidemiology; and ‡Hospital "Schwarzwald-Baar Klinikum," Department of Otorhinolaryngology, Villingen-Schwenningen, - - 2014
Active and passive opening of the Eustachian tube (ET) enables direct aeration of the middle ear and a pressure balance between middle ear and the ambient pressure. The aim of this study was to characterize standard values for the opening pressure (ETOP), the opening frequency (ETOF), and the opening duration ...
Pessoa Isabela M B S IM Departamento de Fisioterapia, Pontifíca Universidade Católica de Minas Gerais, Belo Horizonte, MG, - - 2014
Background: The maximum static respiratory pressures, namely the maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP), reflect the strength of the respiratory muscles. These measures are simple, non-invasive, and have established diagnostic and prognostic value. This study is the first to examine the maximum respiratory pressures within the Brazilian ...
Wang Jing-Zhi JZ Department of Automation, University of Science and Technology of China, Hefei, China; Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, - - 2014
Augmentation index (AIx) and subendocardial viability ratio (SEVR) are widely accepted indices of wave reflection and myocardial oxygen demand relative to supply. This study aimed to validate a new tonometric device (IIM-2010A) for obtaining AIx and SEVR from radial artery. A total of 68 outpatients (32 men and 36 women) ...
Kharbanda Elyse Olshen EO HealthPartners Institute for Education and Research, Minneapolis, MN. Electronic address: - - 2014
To describe changes in systolic blood pressure (SBP), diastolic blood pressure (DBP), and body mass index (BMI) associated with initiation and continued use of combined oral contraceptives (COCs) in healthy adolescents. This observational, matched cohort study was conducted in 2 large health systems. Utilizing claims and electronic medical records, we ...
Araki Toshimitsu T Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Mie, - - 2014
Aim: To retrospectively analyze manometric findings in patients with ulcerative colitis who underwent redo-ileo anal anastomosis for pouch-related complications. Methods: Functional and anal manometric parameters were analyzed before, immediately after, and 6 months after the procedure in 17 patients who underwent redo-ileo anal anastomosis between 2001 and 2012. Results: Of ...
Rosano Caterina C Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania; - - 2014
We sought to determine which systolic blood pressure (SBP) characteristics are associated with reduced brain integrity and whether these associations are stronger for white or gray matter. We hypothesized that exposure to higher and variable SBP will be associated with lower structural integrity of both gray and white matter. Neuroimaging, ...
Patrick James L JL Department of Radiology, University of Wisconsin School of Medicine & Public Health, E3/311 Clinical Science Center, 600 Highland Ave., Madison, WI, 53792-3252, - - 2014
To objectively compare colonic distention at CT colonography (CTC) achieved with manual room air vs. automated low-pressure carbon dioxide (CO2) using a novel automated volumetric quality assessment tool. Volumetric analysis was retrospectively performed on CTC studies in 300 asymptomatic adults using an automated quality assessment tool (V3D Colon [beta version], ...
El-Chammas Khalil I KI *Medical College of Wisconsin, Department of Pediatrics, Division of Pediatric Gastroenterology, Milwaukee, WI †Children's Hospital of Wisconsin, Children's Research Institute, Section of Quantitative Health Sciences, Milwaukee, - - 2014
Colon manometry is usually performed using 8-pressure sensor water perfused manometry system. High resolution manometry (HRM), using closely spaced solid state pressure recording sensors, provides more detailed information of gut luminal pressure changes, and by displaying the HRM data as pressure topographic plot (PTP), helps with data interpretation. Our aim ...
Lee Tae Hoon TH Internal Medicine, Soon Chun Hyang University College of Medicine, Cheonan Hospital, Cheonan, South - - 2014
Recent reports have indicated several instances of successful treatment of bowel perforation by using endoscopic band ligation (EBL) when treatment with endoclipping is unsuccessful, but this salvage method has not been investigated in any prospective model. Herein we aimed to compare the technical feasibility and efficacy of EBL and endoclip ...
Worametrachanon Srivilai S Division of Food Science and Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, 50100, - - 2014
The objective of the study was to examine the influence of encapsulated Lactobacillus casei 01 combining with two types of pressurized-purple-rice drinks on colonizing the colon using a simulator of the human intestinal microbial ecosystem. Subsequently, the metabolic products of colon bacteria and various microflora were determined. The finding revealed ...
Lercher Peter P Division of Social Medicine, Medical University Innsbruck, Sonnenburgstrasse 16, A-6020 Innsbruck, Austria. - - 2014
Up to now, traffic noise effect studies focused on hypertension as health outcome. Hypotension has not been considered as a potential health outcome although in experiments some people also responded to noise with decreases of blood pressure. Currently, the characteristics of these persons are not known and whether this down ...
Witmer Matthew T MT Retinal Consultants of Arizona, Phoenix, Ariz., - - 2014
The Alcon Constellation® provides state-of-the-art technology for vitrectomy surgery. Its innovative features include utilization of high-speed and small-gauge vitrectomy systems, surgeon-controlled duty cycle, fine intraocular pressure control, and integrated laser and intraocular gas mixing capabilities. The goal of vitrectomy surgery is the safe and efficient removal of vitreous while avoiding ...
Wise Erika K EK Department of Geography, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, - - 2014
Changes in moisture delivery to western North America are largely controlled by interrelated, synoptic-scale atmospheric pressure patterns. Long-term records of upper-atmosphere pressure and related circulation patterns are needed to assess potential drivers of past severe droughts and evaluate how future climate changes may impact hydroclimatic systems. Here we develop a ...
Woodford Darragh J DJ South African Institute for Aquatic Biodiversity, Grahamstown, South Africa. - - 2013
Propagule pressure is recognized as a fundamental driver of freshwater fish invasions, though few studies have quantified its role. Natural experiments can be used to quantify the role of this factor relative to others in driving establishment success. An irrigation network in South Africa takes water from an inter-basin water ...
Kim Young Hoon - - 2013
Conscious sedation of patients with midazolam reduces anxiety and pain and improves colonoscopy success rates. However, it may lead to adverse effects such as hypoxia and hypotension. The present study investigated the effects of midazolam on cardiopulmonary function during colonoscopy with conscious sedation. Between January 2011 and September 2011, 126 ...
Ji Chengdong - - 2013
Many studies have been conducted on colorectal anastomotic leakage to reduce the incidence of anastomotic leakage. However, how to precisely determine if the bowel can withstand the pressure of a colorectal anastomosis experiment, which is called anastomotic bursting pressure, has not been determined. A task force developed the experimental animal ...
Beck Christopher - - 2013
The aim of this study was to evaluate a newly developed infrared side-stream capnograph with minimal sample volume for the continuous measurement of end-tidal carbon dioxide (CO2) concentrations in small rodents. Thirty-four male Wistar rats (weight 345 ± 70 g) were treated in accordance with the National Institutes of Health (NIH) guidelines for ...
Kemik O - - 2013
Surgical interventions on left colon lead to high morbidity. The problems in wound healing are the main cause of this morbidity. Hypoxia retards wound healing and hyperbaric oxygen treatment (HBOT) has an anti-hypoxic effect. In this experimental study we divided eighty Wistar albino rats into eight groups and numbered between ...
Gurdal Sibel O - - 2013
Previous experimental studies have repeatedly demonstrated the potential protective effect of remote ischemic preconditioning (IPC) on colon anastomosis. The purpose of this experimental study was to investigate the possible positive effects of IPC by interval insufflations in laparoscopic colon operations. Thirty Wistar-albino rats were randomized into 3 groups. Colonic transsection ...
Durães Leonardo de Castro Lde - - 2013
To investigate the correlation between bursting pressure and breaking strength on the 7th postoperative day following left colonic anastomosis in rats. Seventy rats were randomly divided into seven groups of ten animals each. All of the animals underwent segmental resection of the left colon and end-to-end anastomosis. The animals in ...
Nemecek Elena - - 2013
BACKGROUND: Leakage is one of the major complications in gastrointestinal surgery. This preliminary study compared a new barbed absorbable thread for gastrointestinal sutures with monofil suture material in a cadaver model. METHODS: In this study, mechanical experiments were performed in 20 recently deceased individuals. Incisions were made in the small ...
Durães Leonardo de Castro Lde - - 2013
To evaluate the feasibility and safety of a new technique for laparoscopic segmental colectomy and primary anastomosis in the left colon of rats. Thirty rats were randomly assigned to three groups of ten animals each. All animals underwent segmental resection of the left colon and end-to-end anastomosis. In Group I, ...
Nessim Carolyn - - 2013
BACKGROUND: Despite the beneficial effects of epidurals in intra-abdominal surgery, the incidence of anastomotic leak remains controversial when used. Moreover, studies have also shown that fluid overload may be deleterious to anastomoses. The purpose of this paper is to evaluate the effects of varying intraoperative fluid protocols, in the presence ...
Corsetti M - - 2013
BACKGROUND: Alterations of nitrergic innervation have been implicated in the pathophysiology of motor-sensory abnormalities of post infectious functional dyspepsia and could be involved in the pathophysiology of post infectious irritable bowel syndrome. The role of nitrergic neurons in the control of distal colonic sensorimotor function in man is not known. ...
Linke Georg R - - 2013
PURPOSE: Although several studies have demonstrated the feasibility of transrectal natural orifice translumenal endoscopic surgery (NOTES), its clinical application has been hindered by concerns regarding potential infectious complications. The aim of this study was to evaluate the feasibility of a newly developed device for endolumenal colon occlusion (ColoShield) in an ...
Caglayan Kasim - - 2013
OBJECTIVES: The authors aimed to investigate the effect of β-Glucan on healing of an experimental left-sided colon anastomosis model. MATERIAL AND METHODS: Twenty adult male Wistar albino rats were randomized into two groups which had colonic transection and end-to-end anastomosis. Group I (Control): anastomosis group, received no treatment (n = ...
Bertrand Pierre-Marie - - 2013
Patient-ventilator asynchrony is common during noninvasive ventilation (NIV) with pressure support ventilation (PSV). We examined the effect of neurally adjusted ventilatory assist (NAVA) delivered through a facemask on synchronization in patients with acute respiratory failure (ARF). This was a prospective, physiologic, crossover study of 13 patients with ARF (median Pa(O(2))/F(IO(2)), ...
DalBen Mirian Freitas MF Faculdade de Medicina da Universidade de São Paulo, Department of Infectious Diseases and LIM 54, São Paulo/SPSP, - - 2013
To determine factors associated with colonization by carbapenem-resistant Pseudomonas aeruginosa and multiresistant Acinetobacter spp. Surveillance cultures were collected from patients admitted to the intensive care unit at admission, on the third day after admission and weekly until discharge. The outcome was colonization by these pathogens. Two interventions were implemented: education ...
Arkwright J W JW CSIRO Materials Science and Engineering, Lindfield, NSW, Australia. - - 2013
Manometry is commonly used for diagnosis of esophageal and anorectal motility disorders. In the colon, manometry is a useful tool, but clinical application remains uncertain. This uncertainty is partly based on the belief that manometry cannot reliably detect non-occluding colonic contractions and, therefore, cannot identify reliable markers of dysmotility. This ...
Roubinian Nareg - - 2012
Limited data are available on the effects of air travel in patients with pulmonary hypertension (PH), despite their risk of physiologic compromise. We sought to quantify the incidence and severity of hypoxemia experienced by people with PH during commercial air travel. We recruited 34 participants for a prospective observational study ...
Linge S O - - 2012
BACKGROUND AND PURPOSE:CSF fluid dynamics in healthy subjects and patients with Chiari I have been characterized during rest with phase-contrast MR imaging and CFD. CSF flow velocities and pressures in the nonresting state have not been adequately characterized. We used computer simulations to study CSF dynamics during increased heart rates ...
Abicht Jan-Michael - - 2012
Background: Displacement of the heart to expose the posterior vessels during off-pump coronary artery bypass (OPCAB) may cause hemodynamic instability. Deep pericardial traction suture (DPTS) and vacuum-assisted apical suction (VAS) with the Starfish positioning device help to provide good exposure without relevant hemodynamic changes. Our aim was to compare these ...
Navarro Lais Helena Camacho - - 2012
Early trauma care is dependent on subjective assessments and sporadic vital sign assessments. We hypothesized that near-infrared spectroscopy-measured cerebral oxygenation (regional oxygen saturation [rSO₂]) would provide a tool to detect cardiovascular compromise during active hemorrhage. We compared rSO₂ with invasively measured mixed venous oxygen saturation (SvO₂), mean arterial pressure (MAP), ...
Steinback Craig D - - 2012
Evidence suggests that the autonomic nervous system may actively regulate the cerebral vasculature. In this study, central hemodynamics and brain oxy-hemoglobin, deoxy-hemoglobin and total hemoglobin changes (bO(2)Hb, bdHb and bTHb) were monitored during infusion of epinephrine (0.06μg/kg/min over 6min, and 0.12μg/kg/min for 3min) in 12 men. Epinephrine decreased mean arterial ...
Ringer Simone K - - 2012
The objective of this study was to compare the cardiopulmonary effects of a xylazine or romifidine loading-dose, followed by a constant rate infusion (CRI) of the same α(2)-agonist. Nine research horses were treated in a randomized, blinded, crossover design with xylazine or romifidine. After instrumentation, a loading dose of intravenous ...
Larsen Britta A - - 2012
BackgroundThe putative health benefits of forgiveness may include long-term buffering against cardiovascular reactivity associated with rumination. Although studies show short-term benefits of adopting a forgiving perspective, it is uncertain whether this perspective protects against repeated future rumination on offenses, which may be necessary for long-term health benefits. Also unclear is ...
Gupta Hari Om - - 2012
Elevated blood pressure (BP) is associated with increased cardiovascular risks manifested by ischemic heart disease and stroke. Studies of cardiothoracic surgeons and neurosurgeons suggest surgery induces a hemodynamic stress malresponse. However, it is unclear whether these occur in orthopaedic surgeons. We measured the BP of surgeons during hallux valgus surgery, ...
Camen Giovanni - - 2012
Preliminary evidence supports an association between OSA and cardiac dysrhythmias. Negative intrathoracic pressure, as occurring during OSA, may provoke cardiac dysrhythmias. Thus, we aimed to study the acute effects of simulated apnea and hypopnea on arrhythmic potential and measures of cardiac repolarization [QT(C) and T (peak) to T (end) intervals ...
Santamarta D - - 2012
OBJECTIVE: In the present study an attempt was made to quantify and characterise the changes in the intracranial pressure (ICP) waveform over the wide pressure range covered during infusion studies by means of the central tendency measure (CTM). CTM is a non-linear approach using continuous chaotic modelling that summarises the ...
Köksal Neşet - - 2012
BACKGROUND We aimed to test whether hemoperitoneum has adverse effects on colonic anastomosis healing by increasing fibrinolytic activity. METHODS After colonic intersection and anastomosis, 20 Wistar Albino rats received intraabdominal injections of either 25 mg/kg blood (10, Group 1) or physiologic saline (10, Group 2). Anastomotic bursting pressures were measured ...
Alvear Rosa M Bermúdez de - - 2012
Objectives. To determine heart rate influence on voice fundamental frequency under stress conditions. Methods. In 14 healthy volunteers, heart rate and blood pressure variables were analyzed during three classical autonomic tasks. Sustained voice samples were obtained to analyze F0. Results. Cold pressure test increased mean blood pressure, without effect on ...
Dori Guy - - 2012
The absolute value of ejection fraction (EF) in patients with heart failure and preserved ejection fraction (HFpEF) is often observed to be greater than that in healthy, age- or risk-factor matched controls. Assuming this observation is true, we sought for a physiological explanation. It is hypothesized that an increased EF ...
Budnar Vijaya M - - 2012
Background: Poor proximal femoral pressures during a cemented primary hip replacement may compromise proximal fixation and cause early aseptic loosening. Occlusion of the calcar, during stem insertion, achieves a uniform and sustained rise in the proximal intra-medullary pressure, which should enhance cement penetration into bone and improve long-term survival of ...
Cernaro Valeria - - 2012
Background/Aims: To evaluate the balance between arginine-vasopressin (AVP) and apelin during hemodialysis and its role in hypotension onset and in the inflammation status. Methods: We enrolled 50 patients chronically treated with hemodialysis. We assessed plasmatic osmolality, AVP, apelin, mean blood pressure (BP), high-sensitivity C-reactive protein (hsCRP) and β(2)-microglobulin. Results: Apelin ...
Pirbodaghi Tohid - - 2012
OBJECTIVES: Rotary blood pumps (RBPs) running at a constant speed are routinely used for the mechanical support of the heart in various clinical applications, from short-term use in heart-lung machines to long-term support of a failing heart. Their operating range is delineated by suction and regurgitation events, leaving limited control ...
Cunningham J Thomas - - 2012
One of the main clinical features of obstructive sleep apnea is sustained hypertension and elevated sympathetic activity during waking hours. Chronic intermittent hypoxia (CIH), animal model of the hypoxemia associated with obstructive sleep apnea, produces a similar sustained increase in blood pressure. This study determined the role of ΔFosB in ...
Proietti Riccardo - - 2012
Introduction: Closed-loop stimulation (CLS) is a form of rate-adaptive pacing capable of providing an effective pacing rate profile not only during physical exercise but also during mental stress. To test its effectiveness, CLS and accelerometer sensor (AS) rate response were compared intraindividually during a mental stress test (MST). Methods: Thirty-six ...
Weisskopf Markus - - 2012
OBJECTIVE: Intravertebral pressure (IP) is considered a possible factor influencing cement leakage in vertebroplasty (VP). Reports of measuring IP during the injection of the cement reveal rather low values in the periphery of the vertebral body but fail to determine the situation in the center. Hypothesizing there is a significant ...
Meyer S - - 2012
Parameters of intrarectal pressure (surface area under pressure curve and peak pressure) recorded with a microsystem device during the second phase of labor showed no significant correlations with baby's weight or mode of delivery. Was to assess the biomechanical pressures delivered against pelvic floor structures during the second phase of ...
Zhu Jian Hua - - 2012
This study reconstructed a three dimensional fluid/structure interaction (FSI) model to investigate the compliance of human soft palate during calm respiration. Magnetic resonance imaging scans of a healthy male subject were obtained for model reconstruction of the upper airway and the soft palate. The fluid domain consists of nasal cavity, ...
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