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https://www.readbyqxmd.com/read/28912163/neonatal-resuscitation-using-a-laryngeal-mask-airway-a-randomised-trial-in-uganda
#1
Nicolas J Pejovic, Daniele Trevisanuto, Clare Lubulwa, Susanna Myrnerts Höök, Francesco Cavallin, Josaphat Byamugisha, Jolly Nankunda, Thorkild Tylleskär
OBJECTIVE: Mortality rates from birth asphyxia in low-income countries remain high. Face mask ventilation (FMV) performed by midwives is the usual method of resuscitating neonates in such settings but may not always be effective. The i-gel is a cuffless laryngeal mask airway (LMA) that could enhance neonatal resuscitation performance. We aimed to compare LMA and face mask (FM) during neonatal resuscitation in a low-resource setting. SETTING: Mulago National Referral Hospital, Kampala, Uganda...
September 14, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28874304/effect-of-cricoid-pressure-on-the-insertion-efficacy-of-six-supraglottic-devices-a-crossover-randomized-simulation-trial
#2
Fumihiro Ohchi, Nobuyasu Komasawa, Ryosuke Mihara, Kazuo Hattori, Toshiaki Minami
BACKGROUND: No study has ever compared the efficacy of various types of supraglottic devices (SGDs) for securing the airway under cricoid pressure. OBJECTIVE: This study aimed to evaluate the efficacy of six SGDs, LMA-ProSeal (ProSeal), LMA-Classic (Classic), Laryngeal Tube (LT), LMA-Supreme (Supreme), air-Q (air-Q), and i-gel (i-gel), in airway management under cricoid pressure using a manikin. METHODS: Fifteen novice doctors and 16 experienced doctors used the six SGDs under cricoid or sham pressure on an adult manikin...
September 2, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28857785/comparison-of-the-laryngeal-mask-airway-supreme-and-the-i-gel-in-paralysed-elderly-patients-a-randomised-controlled-trial
#3
Myoung H Kim, Jae H Lee, Yong S Choi, Sujung Park, Seokyung Shin
BACKGROUND: The laryngeal mask airway supreme (LMA-S) and i-gel are both popular second-generation supraglottic airway devices that have been widely studied in surgical patients, but their differences in clinical performance in the elderly are not clear. OBJECTIVE: We compared the efficacy and safety of the LMA-S and i-gel in anaesthetised and paralysed elderly patients. DESIGN: A prospective, randomised and parallel study. SETTING: Single-centre trial, study period January 2014 from to October 2016...
August 28, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28802606/comparison-of-lma-supreme%C3%A2-with-i-gel%C3%A2-and-lma-proseal%C3%A2-in-children-for-airway-management-during-general-anaesthesia-a-meta-analysis-of-randomized-controlled-trials
#4
Sulagna Bhattacharjee, Anirban Som, Souvik Maitra
STUDY OBJECTIVE: A few randomized trials have compared LMA Supreme™ with LMA ProSeal™ and i-gel™ in children but their conclusions varied widely. This systematic review and meta analysis has compared the former device with the latter two devices. DESIGN: Meta-analysis and systematic review using the Mantel-Haenszel method and pooled mean difference using inverse variance method. SETTING: Meta-analysis of published prospective randomized controlled trials...
September 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28802261/how-do-different-brands-of-size-1-laryngeal-mask-airway-compare-with-face-mask-ventilation-in-a-dedicated-laryngeal-mask-airway-teaching-manikin
#5
Mark Brian Tracy, Archana Priyadarshi, Dimple Goel, Krista Lowe, Jacqueline Huvanandana, Murray Hinder
BACKGROUND: International neonatal resuscitation guidelines recommend the use of laryngeal mask airway (LMA) with newborn infants (≥34 weeks' gestation or >2 kg weight) when bag-mask ventilation (BMV) or tracheal intubation is unsuccessful. Previous publications do not allow broad LMA device comparison. OBJECTIVE: To compare delivered ventilation of seven brands of size 1 LMA devices with two brands of face mask using self-inflating bag (SIB). DESIGN: 40 experienced neonatal staff provided inflation cycles using SIB with positive end expiratory pressure (PEEP) (5 cmH2O) to a specialised newborn/infant training manikin randomised for each LMA and face mask...
August 11, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28737223/a-network-meta-analysis-of-the-clinical-properties-of-various-types-of-supraglottic-airway-device-in-children
#6
REVIEW
T Mihara, A Asakura, G Owada, A Yokoi, K Ka, T Goto
We conducted both conventional pairwise and Bayesian network meta-analyses to compare the clinical properties of supraglottic airway devices in children. We searched six databases for randomised clinical trials. Our primary end-points were oropharyngeal leak pressure, risk of insertion failure at first attempt, and blood staining risk. The risk of device failure, defined as the abandonment of the supraglottic airway device and replacement with a tracheal tube or another device, was also analysed. Sixty-five randomised clinical trials with 5823 participants were identified, involving 16 types of supraglottic airway device...
July 24, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28686017/analysis-and-characterization-of-polychlorinated-hydroxybornanes-as-metabolites-of-toxaphene-using-a-polar-bear-model
#7
Lea Reger, Christoph Gallistl, Karl Skírnisson, Walter Vetter
Abiotic and biotic transformation of toxaphene (camphechlor) results in the selective enrichment of recalcitrant congeners while other, less persistent compounds of technical toxaphene (CTTs) are degraded. Until now, there has been little knowledge on oxidation transformation of toxaphene. For instance, the existence of hydroxylated CTTs (OH-CTTs) in authentic environmental and food samples has not been proven. For this reason, we synthesized a mixture consisting of tetra- to heptachlorinated OH-CTTs and simplified it by countercurrent chromatography (CCC)...
July 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28672891/osteogenic-potency-of-dedifferentiated-fat-cells-isolated-from-elderly-people-with-osteoporosis
#8
Wei Hao, Chuanqiang Jiang, Ming Jiang, Tian Wang, Xin Wang
Mature adipocytes are the major cell type in adipose tissue. This study aimed to explore the osteogenic potency of dedifferentiated fat cells obtained from osteoporotic patients (opDFATs) in vitro and in vivo. Mature adipocytes and adipose-derived stem cells (opASCs) were harvested from subcutaneous adipose tissue. Mature adipocytes were dedifferentiated to produce opDFATs by the ceiling culture method. OpDFATs were osteogenically induced in vitro with opASCs as a control. Cell growth, alkaline phosphatase (ALPase) activity and cell mineralization were determined, and expression levels of osteogenesis-specific genes (collagen I, osteocalcin and bone sialoprotein) were analyzed using quantitative reverse transcription polymerase chain reaction...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28658119/is-neuromuscular-blocker-needed-in-children-undergoing-inguinal-herniorrhaphy-a-prospective-randomized-and-controlled-trial
#9
RANDOMIZED CONTROLLED TRIAL
Bon-Wook Koo, Kyu-Whan Jung, Ah-Young Oh, Eun-Young Kim, Hyo-Seok Na, Eun-Su Choi, Kwang-Suk Seo
BACKGROUND: Intraoperative neuromuscular blocker is widely used, but is known to be associated with postoperative residual paralysis, which is known to be associated with increased risk of pulmonary complications. Hence, its use should be individualized and restricted to procedures where it is mandatory. We examined whether not using a neuromuscular blocker affects the surgical conditions in children undergoing inguinal herniorrhaphy. METHODS: Anesthesia was induced and maintained with sevoflurane in 60% nitrous oxide, and the airway was maintained using an I-gel...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28634939/an-organotypic-3d-assay-for-primary-human-mammary-epithelial-cells-that-recapitulates-branching-morphogenesis
#10
Jelena R Linnemann, Lisa K Meixner, Haruko Miura, Christina H Scheel
We have developed a three-dimensional organotypic culture system for primary human mammary epithelial cells (HMECs) in which the cells are cultured in free floating collagen type I gels. In this assay, luminal cells predominantly form multicellular spheres, while basal/myoepithelial cells form complex branched structures resembling terminal ductal lobular units (TDLUs), the functional units of the human mammary gland in situ. The TDLU-like organoids can be cultured for at least 3 weeks and can then be passaged multiple times...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28625432/the-lma-supreme-is-it-a-suitable-alternative-to-the-i-gel-and-lma-proseal-for-airway-maintenance-in-children
#11
EDITORIAL
Narasimhan Jagannathan, Jahn Hajduk
No abstract text is available yet for this article.
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28580492/effect-of-concentration-of-collagen-gel-on-functional-activity-of-bone-marrow-mesenchymal-stromal-cells
#12
Yu A Nashchekina, N M Yudintceva, P O Nikonov, E A Ivanova, L V Smagina, I V Voronkina
Collagen I gels with protein concentrations of 1, 2, and 3.5 mg/ml were prepared and embedded in a porous polylactide scaffold to reduce their contraction. Concentration of the gel did not affect its degradation. Collagen gels promoted the formation of cell networks. The cells in the collagen gel with a concentration of 1 mg/ml embedded in polylactide scaffold had elongated spindle-like shape, in contrast to flattened cells in collagen gel of the same concentration not embedded in the scaffold. Stabilization of the collagen gel in the polylactide scaffold promoted active synthesis of laminin and fibronectin by cells as soon as on day 5 of culturing in comparison with that in free collagen substrate...
June 3, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28578948/gelation-of-rhamnogalacturonan-i-is-based-on-galactan-side-chain-interaction-and-does-not-involve-chemical-modifications
#13
Polina V Mikshina, Olga N Makshakova, Anna A Petrova, Ilzira Z Gaifullina, Bulat Z Idiyatullin, Tatyana A Gorshkova, Yuriy F Zuev
The article presents the structural principles of microwave-induced formation of new gel type from pectic rhamnogalacturonan I (RG-I). The backbone of gel-forming RG-I does not contain consecutive galacturonic residues and modifying groups that can be the cause of junction zone formation as it occurs in course of classical ways of pectin gelation. Microwave irradiation does not cause destruction and chemical modifications of RG-I. Removal of half of galactan chains from RG-I leads to loss of gelling capability pointing out on their leading role in this process...
September 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28518082/maturation-of-human-stem-cell-derived-cardiomyocytes-in-biowires-using-electrical-stimulation
#14
Xuetao Sun, Sara S Nunes
Human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) have been a promising cell source and have thus encouraged the investigation of their potential applications in cardiac research, including drug discovery, disease modeling, tissue engineering, and regenerative medicine. However, cells produced by existing protocols display a range of immaturity compared with native adult ventricular cardiomyocytes. Many efforts have been made to mature hPSC-CMs, with only moderate maturation attained thus far. Therefore, an engineered system, called biowire, has been devised by providing both physical and electrical cues to lead hPSC-CMs to a more mature state in vitro...
May 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28489804/comparison-of-learning-performance-of-2-intubating-laryngeal-mask-airways-in-novice-a-randomized-crossover-manikin-study
#15
RANDOMIZED CONTROLLED TRIAL
Zi-Jia Liu, Jie Yi, Wei-Yun Chen, Xiu-Hua Zhang, Yu-Guang Huang
BACKGROUND: Intubating laryngeal mask airways (LMAs) such as i-gel and Aura-i could serve as rescue devices in resuscitation and further ensure the airway by facilitating trachea intubation without ventilation interruption. But data regarding intubating LMAs in novice are limited and skill degeneration without regular training has not been evaluated. So we designed this prospective randomized crossover manikin study to compare the learning performance of 2 intubating LMAs (i-gel and Aura-i)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28471973/a-randomized-comparison-of-volume-and-pressure-controlled-ventilation-in-children-with-the-i-gel-effects-on-peak-inspiratory-pressure-oropharyngeal-leak-pressure-and-gastric-insufflation
#16
RANDOMIZED CONTROLLED TRIAL
Jin Ha Park, Ji Young Kim, Kyoungun Park, Hae Keum Kil
BACKGROUND: The i-gel provides good airway sealing but gastric insufflation may occur when peak inspiratory pressure (PIP) exceeds the sealing pressure of the i-gel without a gastric tube. Pressure-controlled ventilation (PCV) provides lower PIP compared with volume-controlled ventilation (VCV) and low PIP may reduce the incidence of gastric insufflation in children during positive pressure ventilation. This study was designed to evaluate PIP, oropharyngeal leak pressure, and gastric insufflation during VCV or PCV in children undergoing general anesthesia with i-gel without a gastric tube in situ...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28439597/ambu-auraonce-versus-i-gel-laryngeal-mask-airway-in-infants-and-children-undergoing-surgical-procedures-a-randomized-controlled-trial
#17
Abdulrahman M Alzahem, Mansoor Aqil, Tariq A Alzahrani, Ayman H Aljazaeri
To compare the efficacy and performance of the pediatric Ambu AuraOnce (Ambu AO) mask (Ambu, Copenhagen, Denmark) and i-gel mask (Intersurgical Ltd., Wokingham, United Kingdom). Methods: From May 2015 to September 2016, 112 patients, 0-14 years old, underwent elective surgery at a tertiary university hospital (Riyadh, Saudi Arabia). They were randomly assigned to the Ambu AO or i-gel group. Three groups underwent a subgroup analysis: ≤5 kg (group 1), 5.1-10.0 kg (group 2), and >10 kg (group 3). Results: The oropharyngeal leak pressure was significantly higher for the i-gel (25...
May 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28423706/identification-of-ras-suppressor-1-rsu-1-as-a-potential-breast-cancer-metastasis-biomarker-using-a-three-dimensional-in-vitro-approach
#18
Vasiliki Gkretsi, Andreas Stylianou, Maria Louca, Triantafyllos Stylianopoulos
Breast cancer (BC) is the most common malignant disease in women, with most patients dying from metastasis to distant organs, making discovery of novel metastasis biomarkers and therapeutic targets imperative. Extracellular matrix (ECM)-related adhesion proteins as well as tumor matrix stiffness are important determinants for metastasis. As traditional two-dimensional culture does not take into account ECM stiffness, we employed 3-dimensional collagen I gels of increasing concentration and stiffness to embed BC cells of different invasiveness (MCF-7, MDA-MB-231 and MDA-MB-231-LM2) or tumor spheroids...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28245809/mesenchymal-stem-cells-and-myoblast-differentiation-under-hgf-and-igf-1-stimulation-for-3d-skeletal-muscle-tissue-engineering
#19
R Witt, A Weigand, A M Boos, A Cai, D Dippold, A R Boccaccini, D W Schubert, M Hardt, C Lange, A Arkudas, R E Horch, J P Beier
BACKGROUND: Volumetric muscle loss caused by trauma or after tumour surgery exceeds the natural regeneration capacity of skeletal muscle. Hence, the future goal of tissue engineering (TE) is the replacement and repair of lost muscle tissue by newly generating skeletal muscle combining different cell sources, such as myoblasts and mesenchymal stem cells (MSCs), within a three-dimensional matrix. Latest research showed that seeding skeletal muscle cells on aligned constructs enhance the formation of myotubes as well as cell alignment and may provide a further step towards the clinical application of engineered skeletal muscle...
February 28, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28236864/a-comparison-of-various-supraglottic-airway-devices-for-fiberoptical-guided-tracheal-intubation
#20
RANDOMIZED CONTROLLED TRIAL
Thomas Metterlein, Anna Dintenfelder, Christoph Plank, Bernhard Graf, Gabriel Roth
BACKGROUND: Fiberoptical assisted intubation via placed supraglottic airway devices has been described as safe and easy procedure to manage difficult airways. However visualization of the glottis aperture is essential for fiberoptical assisted intubation. Various different supraglottic airway devices are commercially available and might offer different conditions for fiberoptical assisted intubation. The aim of this study was to compare the best obtainable view of the glottic aperture using different supraglottic airway devices...
March 2017: Brazilian Journal of Anesthesiology
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