keyword
MENU ▼
Read by QxMD icon Read
search

Oxygen tubing

keyword
https://www.readbyqxmd.com/read/28218220/establishment-of-a-rabbit-model-of-chronic-obstructive-sleep-apnea-and-application-in-cardiovascular-consequences
#1
Li-Fang Xu, Xiu-Fang Zhou, Ke Hu, Si Tang, Yu-Chuan Luo, Wen Lu
BACKGROUND: Although obstructive sleep apnea (OSA) has been recognized as a major risk factor for cardiovascular complications and its clinical features are well characterized, it is difficult to replicate the OSA hypoxic model in humans. We aimed to establish an experimental rabbit model for chronic OSA and to explore its application to measure blood pressure (BP), myocardial systolic function, and oxidative stress. METHODS: The rabbit model for OSA was established by repeatedly closing the airway and then reopening it...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28217046/effect-of-nebulized-budesonide-on-respiratory-mechanics-and-oxygenation-in-acute-lung-injury-acute-respiratory-distress-syndrome-randomized-controlled-study
#2
Hatem Saber Mohamed, Mona Mohamed Abdel Meguid
BACKGROUND: We tested the hypothesis that nebulized budesonide would improve lung mechanics and oxygenation in patients with early acute lung injury (ALI) and/or acute respiratory distress syndrome (ARDS) during protective mechanical ventilation strategy without adversely affecting systemic hemodynamics. METHODS: Patients with ALI/ARDS were included and assigned into two groups; budesonide group (30 cases) in whom 1 mg-2 ml budesonide suspension was nebulized through the endotracheal tube and control group (30 cases) in whom 2 ml saline (placebo) were nebulized instead of budesonide...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216702/evaluation-of-simple-pre-determined-length-insertion-technique-split-with-conventional-method-for-oral-fibreoptic-intubation-a-randomised-cross-over-study
#3
Elangovan Muthukumar, Lenin Babu Elakkumanan, Prasanna Udupi Bidkar, Mvs Satyaprakash, Sandeep Kumar Mishra
BACKGROUND AND AIMS: The difficulty during flexible fiber-optic bronchoscopy (FOB) guided tracheal intubation could be because of inability in visualising glottis, advancing and railroading of endotracheal tube. Several methods are available for visualising glottis, but none is ideal. Hence, this randomised controlled study was designed to evaluate the simple pre-determined length insertion technique (SPLIT) during oral FOB. METHODS: Fifty-eight patients were randomised into Group C and Group P...
January 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28199051/boosting-bifunctional-oxygen-electrolysis-for-n-doped-carbon-via-bimetal-addition
#4
Jian Wang, Francesco Ciucci
The addition of transition metals, even in a trace amount, into heteroatom-doped carbon (M-N/C) is intensively investigated to further enhance oxygen reduction reaction (ORR) activity. However, the influence of metal decoration on the electrolysis of the reverse reaction of ORR, that is, oxygen evolution reaction (OER), is seldom reported. Moreover, further improving the bifunctional activity and corrosion tolerance for carbon-based materials remains a big challenge, especially in OER potential regions. Here, bimetal-decorated, pyridinic N-dominated large-size carbon tubes (MM'-N/C) are proposed for the first time as highly efficient and durable ORR and OER catalysts...
February 15, 2017: Small
https://www.readbyqxmd.com/read/28193048/lifetime-of-phosphorescence-from-nanoparticles-yields-accurate-measurement-of-concentration-of-oxygen-in-microdroplets-allowing-one-to-monitor-the-metabolism-of-bacteria
#5
Michał Horka, Shiwen Sun, Artur Ruszczak, Piotr Garstecki, Torsten Mayr
A method to monitor the level of oxygen in microdroplets is presented. Optical sensor nanoparticles are dispersed in the aqueous phase of the microfluidic droplets for culturing bacteria. The oxygen sensor nanoparticles consist of phosphorescent indicator dye embedded in poly(styrene-block-vinylpyrrolidone) nanobeads. The nanoparticles are excitable by red light and emit in the near-infrared spectra region which minimizes background fluorescence from biological matter. The biocompatibility of the nanoparticles was proven...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28176180/prevention-of-hypoxemia-during-apnea-testing-a-comparison-of-oxygen-insufflation-and-continuous-positive-airway-pressure
#6
Andreas H Kramer, Philippe Couillard, Ryan Bader, Peter Dhillon, Demetrios J Kutsogiannis, Christopher J Doig
BACKGROUND: Apnea testing is an essential step in the clinical diagnosis of brain death. Current international guidelines recommend placement of an oxygen (O2) insufflation catheter into the endotracheal tube to prevent hypoxemia, but use of a continuous positive airway pressure (CPAP) valve may be more effective at limiting arterial partial pressure of O2 (PO2) reduction. METHODS: We performed a multicenter study assessing consecutive apnea tests in 14 intensive care units (ICUs) in two cities utilizing differing protocols...
February 7, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28174331/humidity-and-inspired-oxygen-concentration-during-high-flow-nasal-cannula-therapy-in-neonatal-and-infant-lung-models
#7
Yusuke Chikata, Saki Ohnishi, Masaji Nishimura
BACKGROUND: High-flow nasal cannula therapy (HFNC) for neonate/infants can deliver up to 10 L/min of heated and humidified gas, and FIO2 can be adjusted to between 0.21 and 1.0. With adults, humidification and actual FIO2 are known to vary according to inspiratory and HFNC gas flow, tidal volume (VT), and ambient temperature. There have been few studies focused on humidification and FIO2 in HFNC settings for neonates/infants, so we performed a bench study to investigate the influence of gas flow, ambient temperature, and respiratory parameters on humidification and actual FIO2 in a neonate/infant simulation...
February 7, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28169848/efficacy-of-flow-monitoring-during-ecmo
#8
Aditya Badheka, Sara E Stucker, Joseph W Turek, Madhavan L Raghavan
The hypothesis that blood flow monitoring could serve as an effective early indicator of distal obstruction during ECMO was tested under controlled experimental conditions. The ECMO circuit typically includes (or could be easily modified to include) a shunt that bifurcates from the main line returning a small amount of blood back to the pump with access points for drug infusions. Distal circuit obstructions in the oxygenator and beyond will result in an increased diversion of flow from the distal line to the shunt...
February 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28162155/-three-dimensional-circulation-perfusion-culture-of-hepatocytes-in-the-liver-decellularizedscaffold
#9
L Wang, P C Zhou, S S Zhu, Y Wang, X J Fan, M Y Zhu, Z W Wang, H X Qian
Objective: The intact rat liver decellularized scaffolds were preparedand repopulated hepatocytes by continuous perfusion technology.Toprovideexperimental support for the application of decellularized liver scaffolds in liver engineering. Method: Decellularized liver scaffolds were obtained by perfusing method. The composition and structure was examined by HE, Masson, Sirius red stain and immunofluorescence. The ultrastructure was examined by scanning electron microscope (SEM). DNA content was used to confirm the effect of decellularization...
January 24, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28161016/high-flow-warm-humidified-oxygen-versus-standard-low-flow-nasal-cannula-oxygen-for-moderate-bronchiolitis-hfwho-rct-an-open-phase-4-randomised-controlled-trial
#10
Elizabeth Kepreotes, Bruce Whitehead, John Attia, Christopher Oldmeadow, Adam Collison, Andrew Searles, Bernadette Goddard, Jodi Hilton, Mark Lee, Joerg Mattes
BACKGROUND: Bronchiolitis is the most common lung infection in infants and treatment focuses on management of respiratory distress and hypoxia. High-flow warm humidified oxygen (HFWHO) is increasingly used, but has not been rigorously studied in randomised trials. We aimed to examine whether HFWHO provided enhanced respiratory support, thereby shortening time to weaning off oxygen. METHODS: In this open, phase 4, randomised controlled trial, we recruited children aged less than 24 months with moderate bronchiolitis attending the emergency department of the John Hunter Hospital or the medical unit of the John Hunter Children's Hospital in New South Wales, Australia...
February 1, 2017: Lancet
https://www.readbyqxmd.com/read/28155911/effects-of-nutritional-and-ambient-oxygen-condition-on-biofilm-formation-in-mycobacterium-avium-subsp-hominissuis-via-altered-glycolipid-expression
#11
Takahiro Totani, Yukiko Nishiuchi, Yoshitaka Tateishi, Yutaka Yoshida, Hiromi Kitanaka, Mamiko Niki, Yukihiro Kaneko, Sohkichi Matsumoto
Mycobacterium avium subsp. hominissuis (MAH) is the major causative agent of nontuberculous mycobacteriosis, the representative case of environment-related infectious diseases the incidence of which is increasing in industrialized countries. MAH is found in biofilm in drinking water distribution system and residential environments. We investigated the effect of gaseous and nutritional conditions, and the role of glycopeptidolipids (GPLs) on biofilm-like pellicle formation in MAH. Pellicle formation was observed under 5% oxygen in Middlebrook 7H9 broth containing 0...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28154913/right-ventricle-to-pulmonary-artery-shunt-in-pulmonary-atresia-with-a-ventricular-septal-defect-a-word-of-caution
#12
Kwang Ho Choi, Si Chan Sung, Hyungtae Kim, Hyoung Doo Lee, Gil Ho Ban, Geena Kim, Hoon Ko
The management of pulmonary atresia with a ventricular septal defect (PA/VSD) depends on the anatomy of the pulmonary artery or on the surgical strategy used at individual institutions. In our institution, we adopted a right ventricle-to-pulmonary artery (RV-PA) shunt in 2011 as a palliative procedure for PA/VSD to overcome the disadvantages of a Blalock-Taussig shunt. We evaluated the results of the RV-PA shunt as initial palliative surgery for PA/VSD. Thirteen patients with ductus-dependent PA/VSD from August 2011 to August 2015 were enrolled...
February 3, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28152385/propofol-fentanyl-interaction-in-beagles-apnea-response-to-mechanical-ventilation-endotracheal-tube-and-tetanic-stimulation
#13
T Iizuka, K Masui, T Miyabe-Nishiwaki, H Kanazawa, R Nishimura
The objective of this study was to characterize the propofol-fentanyl interaction in Beagles for four pharmacodynamic endpoints: apnea, response to mechanical ventilation, endotracheal tube, and tetanic stimulation. After anesthesia was induced with varying combinations of propofol and fentanyl, the pharmacodynamic endpoints were assessed in intubated dogs (n=6) using the cross-over design. Effective concentrations of propofol plasma concentration (Cp) and fentanyl Cp were assessed using additive, reduced Greco, Minto, and hierarchical interaction models...
January 23, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28146296/nasal-intermittent-positive-pressure-ventilation-nippv-versus-nasal-continuous-positive-airway-pressure-ncpap-for-preterm-neonates-after-extubation
#14
REVIEW
Brigitte Lemyre, Peter G Davis, Antonio G De Paoli, Haresh Kirpalani
BACKGROUND: Previous randomised trials and meta-analyses have shown that nasal continuous positive airway pressure (NCPAP) is a useful method for providing respiratory support after extubation. However, this treatment sometimes 'fails' in infants, and they may require endotracheal re-intubation with its attendant risks and expense. Nasal intermittent positive pressure ventilation (NIPPV) can augment NCPAP by delivering ventilator breaths via nasal prongs. Older children and adults with chronic respiratory failure benefit from NIPPV, and the technique has been applied to neonates...
February 1, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28139233/a-bottom-water-sampler-for-determining-chemical-gradients-across-the-water-sediment-interface
#15
Kit Yee Chong, Hao Liu, Kedong Yin, Paul J Harrison, Kwok Kei Kau
We developed an inexpensive bottom water sampler that can be operated from a small boat in order to obtain high resolution vertical profiles of dissolved oxygen (DO), chlorophyll, suspended particulate matter (SPM). These vertical profiles allow us to examine bottom resuspension processes and to estimate their benthic fluxes of nutrients across the sediment-water interface in shallow coastal waters. The sampler consists of a 2m long thick-walled transparent tube with 26 sampling ports at 8-10cm intervals. Each sampling interval contains a minimum of 300-370ml water samples...
January 27, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28130967/a-randomized-controlled-trial-of-the-laryngeal-mask-airway-for-surfactant-administration-in-neonates
#16
Rosilu F Barbosa, Ana C Simões E Silva, Yerkes P Silva
OBJECTIVE: To compare the short-term efficacy of surfactant administration by laryngeal mask airway versus endotracheal tube. METHODS: Preterm infants (28-35 weeks of gestational age), weighing 1kg or more, with respiratory distress syndrome, requiring nasal continuous positive airway pressure, with increased respiratory effort and/or fraction of inspired oxygen (FiO2)≥0.40 to maintain oxygen saturation 91-95%, were randomized to receive surfactant by LMA following nCPAP or by ETT following mechanical ventilation (MV)...
January 25, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28128678/permanent-atrial-fibrillation-impairs-the-function-of-circulating-endothelial-progenitor-cells
#17
Qiang Tan, Shuangyue Zhang, Ximing Qi, Xiaoyi Zou, Qiang Sun
OBJECTIVE: to determine whether functions of endothelial progenitor cells (EPCs) were impaired in patients with permanent atrial fibrillation (AF). METHODS: 35 patients with permanent AF (AF group) and 35 age and sex matched controls (control group) were collected. The numbers of circulating CD34(+)/KDR(+) cells were determined with flow cytometry in the two groups. Cell proliferation, tube formation, nitric oxygen (NO) and vascular endothelial growth factor (VEGF) were assayed...
January 27, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28126298/hyperbaric-oxygen-as-radiation-sensitizer-for-locally-advanced-squamous-cell-carcinoma-of-the-oropharynx-a-phase-1-dose-escalation-study
#18
Alan C Hartford, Thomas H Davis, Jay C Buckey, Robert L Foote, Mark S Sinesi, Benjamin B Williams, Anna K Fariss, Philip E Schaner, Paul L Claus, Scott H Okuno, James R Hussey, Richard E Clarke
PURPOSE: To explore, in a dose-escalation study, the feasibility of hyperbaric oxygen (HBO) treatments immediately before intensity modulated radiation therapy in conjunction with cisplatinum chemotherapy for squamous cell carcinoma of the head and neck (SCCHN). METHODS AND MATERIALS: Eligible patients presented with SCCHN (stage III-IV [M0]), life expectancy >6 months, and Karnofsky performance status ≥70. Enrollees received intensity modulated radiation therapy, 70 Gy in 35 fractions over 7 weeks with weekly cisplatinum...
March 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28124422/survival-of-two-dogs-with-pyothorax-secondary-to-perforating-oesophageal-foreign-body
#19
C Boyd, M Claus, G Hosgood, L Smart
CASE REPORT: Two dogs with an oesophageal foreign body (FB) were diagnosed with secondary pyothorax at the time of presentation. One dog was managed with surgical FB removal, pleural lavage and thoracostomy tube placement. Following surgery, it was admitted to the intensive care unit for oxygen therapy, antimicrobial and analgesic administration, fluid therapy, thoracic drainage and enteral nutrition. The other dog was managed with endoscopic FB removal, thoracostomy tube placement with continuous suction, and similar aftercare in the intensive care unit...
January 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28116475/effect-of-fenestration-on-early-postoperative-outcome-in-extracardiac-fontan-patients-with-different-risk-levels
#20
Fan Fan, Zhimin Liu, Shoujun Li, Tong Yi, Jun Yan, Fuxia Yan, Xu Wang, Qiang Wang
Although fenestration is used to improve the postoperative course of Fontan patients, the effect of fenestration on the extracardiac Fontan seems controversial especially at early postoperation. One hundred and eighty-three patients from January 2004 to June 2013 undergoing an extracardiac Fontan operation were retrospectively selected for this study. We divided the patients into low risk (93 patients) and high risk (90 patients) groups according to the risk factors recognized by previous studies and then compared the perioperative data between the nonfenestrated and fenestrated patients in each group...
January 23, 2017: Pediatric Cardiology
keyword
keyword
107646
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"