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https://www.readbyqxmd.com/read/28108220/missed-myocardial-infarctions-in-ed-patients-prospectively-categorized-as-low-risk-by-established-risk-scores
#1
A J Singer, M P Than, S Smith, P McCullough, T W Barrett, R Birkhahn, M Reed, H C Thode, W D Arnold, L B Daniels, C de Filippi, G Headden, W F Peacock
STUDY OBJECTIVES: Few studies have prospectively compared multiple cardiac risk prediction scores. We compared the rate of missed acute myocardial infarction (AMI) in chest pain patients prospectively categorized as low risk by unstructured clinical impression, and by HEART, TIMI, GRACE, and EDACS scores, in combination with two negative contemporary cardiac troponins (cTn) available in the U.S. METHODS: We enrolled 434 patients with chest pain presenting to one of seven emergency departments (ED)...
January 5, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28074723/-a-woman-with-excessive-dynamic-airway-collapse
#2
R L T N Salden, S Postma
BACKGROUND: 'Excessive dynamic airway collapse' (EDAC) is a form of tracheamalacia, that does not affect the rings of cartilage on the anterior side of the trachea, but in which the posterior wall of the trachea collapses during inspiration and expiration. CASE DESCRIPTION: An 80 year-old woman presented to the accident and emergency department with dyspnoea and severe inspiratory and expiratory stridor, with sudden onset a few hours previously. Following a series of investigations, she was shown to have a narrowing of the trachea, radiating from the posterior wall...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28005835/our-experience-on-silicone-y-stent-for-severe-copd-complicated-with-expiratory-central-airway-collapse
#3
Mehmet A Ozgul, Erdogan Cetinkaya, Mustafa Cortuk, Sinem Iliaz, Elif Tanriverdi, Sule Gul, Guler Ozgul, Hilal Onaran, Kenan Abbasli, Huseyin E Dincer
BACKGROUND: Expiratory central airway collapse (ECAC) is abnormal central airway narrowing during expiration. ECAC involves 2 different pathophysiological entities as tracheobronchomalacia and excessive dynamic airway collapse (EDAC). Although the exact cause is unknown, chronic obstructive pulmonary disease (COPD) is frequently accompanied by ECAC. Although there are various publications on the relationship between COPD and ECAC, there are very few data for stent placement in patients with tracheobronchomalacia accompanied severe COPD...
December 21, 2016: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/27987786/comparison-of-glutaraldehyde-and-carbodiimides-to-crosslink-tissue-engineering-scaffolds-fabricated-by-decellularized-porcine-menisci
#4
Shuang Gao, Zhiguo Yuan, Weimin Guo, Mingxue Chen, Shuyun Liu, Tingfei Xi, Quanyi Guo
The objectives of this study were to fabricate porous scaffolds using decellularized meniscus, and to explore a preferable crosslinking condition to enhance mechanical properties of scaffolds. Moreover, the microstructure, porosity, biodegradation and cytotoxicity were also evaluated. EDAC or GTA in different concentration was used to crosslink scaffolds. FTIR demonstrated functional groups change in crosslinking process. SEM photography showed that crosslinked scaffolds had blurry edges, which resulted scaffolds crosslinked by 1...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27984825/colloid-adhesive-and-release-properties-of-nanoparticular-ternary-complexes-between-cationic-and-anionic-polysaccharides-and-basic-proteins-like-bone-morphogenetic-protein-bmp-2
#5
R Petzold, D Vehlow, B Urban, A L Grab, E A Cavalcanti-Adam, V Alt, M Müller
Herein we describe an interfacial local drug delivery system for bone morphogenetic protein 2 (BMP-2) based on coatings of polyelectrolyte complex (PEC) nanoparticles (NP). The application horizon is the functionalization of bone substituting materials (BSM) used for the therapy of systemic bone diseases. Nanoparticular ternary complexes of cationic and anionic polysaccharides and BMP-2 or two further model proteins, respectively, were prepared in dependence of the molar mixing ratio, pH value and of the cationic polysaccharide...
November 24, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27735070/in-vitro-evaluation-of-an-alternative-neonatal-extracorporeal-life-support-circuit-on-hemodynamic-performance-and-bubble-trap
#6
Shannon B Spencer, Shigang Wang, Karl Woitas, Kristen Glass, Allen R Kunselman, Akif Ündar
The objective of this study was to evaluate an alternative neonatal extracorporeal life support (ECLS) circuit with a RotaFlow centrifugal pump and Better-Bladder (BB) for hemodynamic performance and gaseous microemboli (GME) capture in a simulated neonatal ECLS system. The circuit consisted of a Maquet RotaFlow centrifugal pump, a Quadrox-iD Pediatric diffusion membrane oxygenator, 8 Fr arterial cannula, and 10 Fr venous cannula. A "Y" connector was inserted into the venous line to allow for comparison between BB and no BB...
October 13, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27729706/effect-of-normobaric-versus-hypobaric-oxygenation-on-gaseous-microemboli-removal-in-a-diffusion-membrane-oxygenator-an-in-vitro-comparison
#7
Matthew Schuldes, Jeffrey B Riley, Stephen G Francis, Sean Clingan
Gaseous microemboli (GME) are an abnormal physiological occurrence during cardiopulmonary bypass and extracorporeal membrane oxygenation (ECMO). Several studies have correlated negative sequelae with exposure to increased amounts of GME. Hypobaric oxygenation is effective at eliminating GME in hollow-fiber microporous membrane oxygenators. However, hollow-fiber diffusion membrane oxygenators, which are commonly used for ECMO, have yet to be validated. The purpose of this study was to determine if hypobaric oxygenation, compared against normobaric oxygenation, can reduce introduced GME when used on diffusion membrane oxygenators...
September 2016: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/27578929/tracheobronchomalacia-excessive-dynamic-airway-collapse-in-patients-with-chronic-obstructive-pulmonary-disease-with-persistent-expiratory-wheeze-a-pilot-study
#8
Girish Sindhwani, Rakhee Sodhi, Manju Saini, Varuna Jethani, Sushant Khanduri, Baltej Singh
BACKGROUND: Tracheobronchomalacia (TBM) refers to a condition in which structural integrity of cartilaginous wall of trachea is lost. Excessive dynamic airway collapse (EDAC) is characterized by excessive invagination of posterior wall of trachea. In both these conditions, airway lumen gets compromised, especially during expiration, which can lead to symptoms such as breathlessness, cough, and wheezing. Both these conditions can be present in obstructive lung diseases; TBM due to chronic airway inflammation and EDAC due to dynamic compressive forces during expiration...
July 2016: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/27469348/review-article-diagnostic-accuracy-of-risk-stratification-tools-for-patients-with-chest-pain-in-the-rural-emergency-department-a-systematic-review
#9
Tina Roche, Natasha Jennings, Stuart Clifford, Jane O'connell, Matthew Lutze, Edward Gosden, N Fionna Hadden, Glenn Gardner
Risk stratification tools for patients presenting to rural EDs with undifferentiated chest pain enable early definitive treatment in high-risk patients. This systematic review compares the most commonly used risk stratification tools used to predict the risk of major adverse cardiac event (MACE) for patients presenting to rural EDs with chest pain. A comprehensive search of MEDLINE and Embase for studies published between January 2011 and January 2015 was undertaken. Study quality was assessed using QUADAS-2 criteria and the PRISMA guidelines...
October 2016: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/27406833/external-validation-of-the-emergency-department-assessment-of-chest-pain-score-accelerated-diagnostic-pathway-edacs-adp
#10
Dylan Flaws, Martin Than, Frank Xavier Scheuermeyer, James Christenson, Barbara Boychuk, Jaimi H Greenslade, Sally Aldous, Christopher J Hammett, William A Parsonage, Joanne M Deely, John W Pickering, Louise Cullen
OBJECTIVE: The emergency department assessment of chest pain score accelerated diagnostic pathway (EDACS-ADP) facilitates low-risk ED chest pain patients early to outpatient investigation. We aimed to validate this rule in a North American population. METHODS: We performed a retrospective validation of the EDACS-ADP using 763 chest pain patients who presented to St Paul's Hospital, Vancouver, Canada, between June 2000 and January 2003. Patients were classified as low risk if they had an EDACS <16, no new ischaemia on ECG and non-elevated serial 0-hour and 2-hour cardiac troponin concentrations...
September 2016: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/27237407/surgical-treatment-of-tracheobronchomalacia-a-novel-approach
#11
REVIEW
Sigrid Bairdain, David Zurakowski, Christopher W Baird, Russell W Jennings
Tracheobronchomalacia, as a whole, is likely misdiagnosed and underestimated as a cause of respiratory compromise in pediatric patients. Currently, there is no standardized approach for the overall evaluation of pediatric tracheobronchomalacia (TBM) and the concept of excessive dynamic airway collapse (EDAC); no grading score for the evaluation of severity; nor a standardized means to successfully approach TBM and EDAC. This paper describes our experience standardizing the approach to these complex patients whose backgrounds include different disease etiologies, as well as a variety of comorbid conditions...
June 2016: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/27221930/formulation-and-cytotoxicity-of-ribosome-inactivating-protein-mirabilis-jalapa-l-nanoparticles-using-alginate-low-viscosity-chitosan-conjugated-with-anti-epcam-antibodies-in-the-t47d-breast-cancer-cell-line
#12
Psycha Anindya Wicaksono, Sismindari Name, Ronny Martien, Hilda Ismail
Ribosome-inactivating protein (RIP) from Mirabilis jalapa L. leaves has cytotoxic effects on breast cancer cell lines but is less toxic towards normal cells. However, it can easily be degraded after administration so it needs to be formulated into nanoparticles to increase its resistance to enzymatic degradation. The objectives of this study were to develop a protein extract of M. jalapa L. leaves (RIP-MJ) incorporated into nanoparticles conjugated with Anti-EpCAM antibodies, and to determine its cytotoxicity and selectivity in the T47D breast cancer cell line...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27134302/arterial-limb-microemboli-during-cardiopulmonary-bypass-observations-from-a-congenital-cardiac-surgery-practice
#13
Gregory S Matte, Kevin R Connor, Hua Liu, James A DiNardo, David Faraoni, Frank Pigula
Gaseous microemboli (GME) are known to be delivered to the arterial circulation of patients during cardiopulmonary bypass (CPB). An increased number of GME delivered during adult CPB has been associated with brain injury and postoperative cognitive dysfunction. The GME load in children exposed to CPB and its consequences are not well characterized. We sought to establish a baseline of arterial limb emboli counts during the conduct of CPB for our population of patients requiring surgery for congenital heart disease...
March 2016: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/27059732/time-courses-and-value-of-circulating-microparticles-in-patients-with-operable-stage-non-small-cell-lung-cancer-undergoing-surgical-intervention
#14
Chia-Cheng Tseng, Chin-Chou Wang, Chang-Chun Hsiao, Hung-I Lu, Steve Leu, Huang-Chih Chang, Kuo-Tung Huang, Wen-Feng Fang, Yu-Mu Chen, Shih-Feng Liu, Cheng-Ta Yang, Meng-Chih Lin, Hon-Kan Yip
Microparticles (MPs) are substantially increased in patients with operable stage non-small cell lung cancer (NSCLC) prior to lung resection surgery. This study tested the hypothesis that there is a decrease in MPs after surgical intervention. Between March 2012 and January 2015, 33 patients who had operable stage NSCLC were consecutively and prospectively enrolled into the study. Additionally, 31 healthy subjects who were consecutively enrolled in the study period served as age- and gender-matched controls...
September 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27021241/all-solid-state-high-performance-asymmetric-supercapacitors-based-on-novel-mns-nanocrystal-and-activated-carbon-materials
#15
Teng Chen, Yongfu Tang, Yuqing Qiao, Zhangyu Liu, Wenfeng Guo, Jianzheng Song, Shichun Mu, Shengxue Yu, Yufeng Zhao, Faming Gao
All-solid-state high-performance asymmetric supercapacitors (ASCs) are fabricated using γ-MnS as positive electrode and porous eggplant derived activated carbon (EDAC) as negative electrode with saturated potassium hydroxide agar gel as the solid electrolyte. The laminar wurtzite nanostructure of γ-MnS facilitates the insertion of hydroxyl ions into the interlayer space, and the manganese sulfide nanowire offers electronic transportation channels. The size-uniform porous nanostructure of EDAC provides a continuous electron pathway as well as facilitates short ionic transportation pathways...
March 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/26993481/in-vitro-elimination-of-gaseous-microemboli-utilizing-hypobaric-oxygenation-in-the-terumo%C3%A2-fx15-oxygenator
#16
Sean Clingan, Matthew Schuldes, Stephen Francis, Harry Hoerr, Jeff Riley
BACKGROUND: This study examines the efficacy of hypobaric oxygenation as it relates to the elimination of gaseous microemboli (GME) at designated flow, pressure and temperature combinations. METHODS: Hypobaric oxygenation was employed for experimental trials (n=60), but not for control trials (n=60), while circuit design, data measurements and testing conditions were maintained for both settings. Hypobaric oxygenation conditions were created by applying 100% oxygen at sub-atmospheric sweep gas pressures of 0...
October 2016: Perfusion
https://www.readbyqxmd.com/read/26972378/2-2-dithiodinicotinyl-ligands-key-to-more-reactive-thiomers
#17
Claudia Menzel, Jennifer Silbernagl, Flavia Laffleur, Christina Leichner, Max Jelkmann, Christian W Huck, Shah Hussain, Andreas Bernkop-Schnürch
The aim of this study was to establish a novel type of preactivated thiomers exhibiting a comparatively higher reactivity with mucus and consequently improved mucoadhesive properties. In order to achieve this goal, the dimeric form of 2-mercaptonicotinic acid (MNA-MNA) was directly attached to the polymeric backbone of chitosan (CHI) via amide bond formation mediated by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDAC) used as a coupling reagent. The remaining free amino groups were in the following reacted with succinic anhydride (Succ) in order to obtain a uniformly anionically charged polymer (CHI-Succ-MNA-MNA)...
April 30, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/26947800/effectiveness-of-edacs-versus-adapt-accelerated-diagnostic-pathways-for-chest-pain-a-pragmatic-randomized-controlled-trial-embedded-within-practice
#18
Martin P Than, John W Pickering, Sally J Aldous, Louise Cullen, Christopher M A Frampton, W Frank Peacock, Allan S Jaffe, Steve W Goodacre, A Mark Richards, Michael W Ardagh, Joanne M Deely, Chris M Florkowski, Peter George, Gregory J Hamilton, David L Jardine, Richard W Troughton, Pieter van Wyk, Joanna M Young, Laura Bannister, Sally J Lord
STUDY OBJECTIVE: A 2-hour accelerated diagnostic pathway based on the Thrombolysis in Myocardial Infarction score, ECG, and troponin measures (ADAPT-ADP) increased early discharge of patients with suspected acute myocardial infarction presenting to the emergency department compared with standard care (from 11% to 19.3%). Observational studies suggest that an accelerated diagnostic pathway using the Emergency Department Assessment of Chest Pain Score (EDACS-ADP) may further increase this proportion...
July 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/26940048/three-dimensional-scaffold-of-type-ii-collagen-promote-the-differentiation-of-adipose-derived-stem-cells-into-a-nucleus-pulposus-like-phenotype
#19
Xiaopeng Zhou, Yiqing Tao, Jingkai Wang, Dongyu Liu, Chengzhen Liang, Hao Li, Qixin Chen
Type II collagen is reported to have the capability of guiding adipose-derived stem cells (ADSCs) to differentiate towards a nucleus pulposus (NP)-like phenotype. So this study aimed to establish a three-dimensional (3D) collagen scaffold using N,N-(3-dimethylaminopropyl)-N'-ethyl carbodiimide and N-hydroxysuccinimide (EDAC/NHS) to increase the efficiency of ADSC differentiation into NP-like cells. Physical properties, such as porosity, biodegradation, and microstructure, and biological characteristics such as cytotoxicity, cell proliferation, and expression of relevant genes and proteins were measured to evaluate the efficacy of different scaffolds...
July 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/26668702/synthesis-characterization-and-immunological-properties-of-escherichia-coli-0157-h7-lipopolysaccharide-diphtheria-toxoid-conjugate-vaccine
#20
Shadi Rokhsartalab-Azar, Reza Shapouri, Mehdi Rahnema, Faezeh Najafzadeh, Anvarsadat Kianmehr
BACKGROUND AND OBJECTIVE: Escherichia coli O157:H7, an emerging pathogen, causes severe enteritis and the extraintestinal complication of hemolytic-uremic syndrome. The goal of this study was to evaluate the conjugate of E. coli O157: H7 lipopolysaccharide (LPS) with diphtheria toxoid (DT) as a candidate vaccine in mice model. MATERIAL AND METHODS: LPS from E. coli O157:H7 was extracted by hot phenol method and then detoxified. Purified LPS was coupled to DT with adipic acid dihydrazide (ADH) as a spacer and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDAC) as a linker...
June 2015: Iranian Journal of Microbiology
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