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https://www.readbyqxmd.com/read/29667900/outcomes-of-emergency-thoracotomy-for-trauma-in-a-general-hospital-in-singapore
#1
Isabelle Rui Wen Yoong, Gregory Heng, Sachin Mathur, Woan Wui Lim, Tiong Thye Goo
Background An emergency thoracotomy can be performed either immediately at the site of trauma or in the emergency department or operating room for resuscitation of patients in extremis or life-saving treatment for patients with thoracic injury. It remains a procedure associated with high mortality rates, and there is a paucity of data from Asia. This study analyzed our six-year experience of emergency trauma thoracotomy in an acute general hospital in Singapore. Methods This retrospective analysis was based on experience in a single institution with all emergency trauma thoracotomies performed by general surgeons...
January 1, 2018: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29667718/trajectories-of-psychopathology-in-extremely-low-birth-weight-survivors-from-early-adolescence-to-adulthood-a-20-year-longitudinal-study
#2
Ryan J Van Lieshout, Mark A Ferro, Louis A Schmidt, Michael H Boyle, Saroj Saigal, Katherine M Morrison, Karen J Mathewson
BACKGROUND: Individuals born extremely preterm are exposed to significant perinatal stresses that are associated with an increased risk of psychopathology. However, a paucity of longitudinal studies has prevented the empirical examination of long-term, dynamic effects of perinatal adversity on mental health. Here, internalizing and externalizing problems from adolescence through adulthood were compared in individuals born at extremely low birth weight (ELBW; <1,000 g) and normal birth weight (NBW; >2,500 g)...
April 18, 2018: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29667607/blunt-abdominal-trauma-following-gunshot-wound-case-report-and-literature-review
#3
Myftar Torba, Arben Gjata, Francesco Rulli, Ilir Kajo, Sotir Ceka, Afron Mici
Blunt abdominal trauma following gunshot wound. Case report and literature review Introduction: Similarly to blast weapons, every firearm produces explosion at the moment of shooting, which can cause injuries in every region of the body. The aim of this paper is to present the mechanism of blunt abdominal injury following gunshot wounds, bringing this uncommon disease to the clinicians' attention and to review the literature available. CASE REPORT: A patient developed a delayed bowel perforation following a gunshot injury of the abdomen without breaking of the peritoneum...
April 20, 2018: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29667225/activation-of-central-gaba-b-receptors-offsets-the-cyclosporine-counteraction-of-endotoxic-cardiovascular-outcomes-in-conscious-rats
#4
Marwa Y Sallam, Sahar M El-Gowilly, Abdel-Galil A Abdel-Galil, Mahmoud M El-Mas
We have previously shown that cyclosporine (CSA) counteracts cardiovascular manifestations induced by endotoxemia (lipopolysaccharide, LPS) such as hypotension and cardiac autonomic dysfunction in conscious rats. In this study we investigated whether the facilitation of central γ-amino butyric acid (GABA) neurotransmission blunts these favorable influences of CSA. The LPS-CSA interaction was determined in the absence and presence of drugs that activate GABAA or GABAB receptors or elevate synaptic GABA levels in the central nervous system...
April 18, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29666357/case-image-ruptured-chorda-tendinea-of-the-tricuspid-valve-following-blunt-chest-trauma
#5
Ahmet Güner, Cagatay Önal, Sabahattin Gündüz, Emrah Bayam, Mehmet Özkan
No abstract text is available yet for this article.
April 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29666201/guidelines-for-conducting-epidemiological-studies-of-blast-injury
#6
Dan Bieler, I Cernak, L Martineau, S Bjarnason, A Franke, E Kirkman, M J Leggieri, H Orru, S Ouellet, M Philippens, M G Risling, J-C Sarron, S Skriudalen, J A Teland, S Watts, R Gupta
Blast injuries are often caused by more than one mechanism, do not occur in isolation, and typically elicit a secondary multi-system response. Research efforts often do not separate blast injuries caused by blast waves from those caused by blunt force trauma and other mechanisms. 15 experts from nine different NATO nations developed in the HFM Research Task Group (RTG; HFM-234 (RTG)) 'Environmental Toxicology of Blast Exposures: Injury Metrics, Modelling, Methods and Standards' Guidelines for Conducting Epidemiological Studies of Blast Injury...
April 17, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29666183/dilated-cardiomyopathy-myosin-mutants-have-reduced-force-generating-capacity
#7
Zoltan Ujfalusi, Carlos D Vera, Srbolujub M Mijailovich, Marina Svicevic, Elizabeth Choe Yu, Masataka Kawana, Kathleen Ruppel, James A Spudich, Michael A Geeves, Leslie A Leinwand
Dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM) can cause arrhythmias, heart failure, and cardiac death. Here, we functionally characterized the motor domains of five DCM-causing mutations in human β-cardiac myosin. Kinetic analyses of the individual events in the ATPase cycle revealed that each mutation alters different steps in this cycle. For example, different mutations gave enhanced or reduced rate constants of ATP binding, ATP hydrolysis, or ADP release or exhibited altered ATP, ADP, or actin affinity...
April 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29666034/contraceptive-use-effectiveness-and-pregnancy-prevention-information-preferences-among-heterosexual-and-sexual-minority-college-women
#8
Heather D Blunt-Vinti, Erika L Thompson, Stacey B Griner
BACKGROUND: Previous research shows that sexual minority women have higher rates of unintended pregnancy than heterosexual women, but has not considered the wide range of contraceptive method effectiveness when exploring this disparity. We examine contraceptive use effectiveness and desire for pregnancy prevention information among college women across sexual orientation identity as a risk factor for unintended pregnancy. METHODS: Using the National College Health Assessment Fall-2015 dataset, restricted to women who reported engaging in vaginal sex and not wanting to be pregnant (N = 6,486), logistic regression models estimated the odds of contraceptive method effectiveness and desire for pregnancy prevention information by sexual orientation...
April 14, 2018: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/29665151/validation-of-the-pediatric-nexus-ii-head-ct-decision-instrument-for-selective-imaging-of-pediatric-patients-with-blunt-head-trauma
#9
Malkeet Gupta, William R Mower, Robert M Rodriguez, Gregory W Hendey
BACKGROUND: Data suggests that clinicians, when evaluating pediatric patients with blunt head trauma, may be over-ordering head computed tomography. Prior decision instruments aimed at aiding clinicians in safely forgoing CTs may be paradoxically increasing CT utilization. This study evaluated a novel decision instrument that aims for high sensitivity while also improving specificity over prior instruments. METHODS: We conducted a planned secondary analysis of the NEXUS Head CT decision instrument (DI) among patients less than 18 years old...
April 17, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29664892/the-role-of-4-factor-prothrombin-complex-concentrate-4-pcc-in-coagulopathy-of-trauma-a-propensity-matched-analysis
#10
Faisal Jehan, Hassan Aziz, Terence O'Keeffe, Muhammad Khan, El Rasheid Zakaria, Mohammad Hamidi, Muhammad Zeeshan, Narong Kulvatunyou, Bellal Joseph
INTRODUCTION: Coagulopathy is a common complication after severe trauma. The efficacy of 4-factor Prothrombin Complex Concentrate (4-PCC) as an adjunct to FFP in reversal of coagulopathy of trauma has not been studied. The aim of our study is to compare 4-PCC+FFP vs. FPP alone for the treatment of COT. METHODS: We reviewed all trauma patients >18y who received PCC+FFP or FFP alone at our Level I trauma center from 2015-16. We excluded patients on preinjury oral anticoagulants...
April 16, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29664056/inhibitory-effects-of-simvastatin-on-oxidized-low-density-lipoprotein-induced-endoplasmic-reticulum-stress-and-apoptosis-in-vascular-endothelial-cells
#11
Guo-Qiang Zhang, Yong-Kang Tao, Yong-Ping Bai, Sheng-Tao Yan, Shui-Ping Zhao
Background: Oxidized low-density lipoprotein (ox-LDL)-induced oxidative stress and endothelial apoptosis are essential for atherosclerosis. Our previous study has shown that ox-LDL-induced apoptosis is mediated by the protein kinase RNA-like endoplasmic reticulum kinase (PERK)/eukaryotic translation initiation factor 2α-subunit (eIF2α)/CCAAT/enhancer-binding protein homologous protein (CHOP) endoplasmic reticulum (ER) stress pathway in endothelial cells. Statins are cholesterol-lowering drugs that exert pleiotropic effects including suppression of oxidative stress...
April 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29664009/evidence-of-universal-inverse-third-power-law-for-the-shielding-induced-fractional-decrease-in-apex-field-enhancement-factor-at-large-spacings-a-response-via-accurate-laplace-type-calculations
#12
Thiago A de Assis, Fernando F Dall'Agnol
Numerical simulations are important when assessing the many characteristics of field emission related phenomena. In small simulation domains, the electrostatic effect from the boundaries is known to influence the calculated apex field enhancement factor (FEF) of the emitter, but no established dependence has been reported at present. In this work, we report the dependence of the lateral size, L, and the height, H, of the simulation domain on the apex-FEF of a single conducting ellipsoidal emitter. Firstly, we analyze the error, ε, in the calculation of the apex-FEF as a function of H and L...
April 17, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29663560/activation-of-hedgehog-signaling-by-systemic-agonist-improves-fracture-healing-in-aged-mice
#13
Jennifer A McKenzie, Clayton Maschhoff, Xiaochen Liu, Nicole Migotsky, Matthew J Silva, Michael J Gardner
Fracture healing is a complex process of many coordinated biological pathways. This system can go awry resulting in nonunion, which leads to significant patient morbidity. The Hedgehog (Hh) signaling pathway is upregulated in fracture healing. We hypothesized that the Hh signaling pathway can be pharmacologically modulated to positively affect fracture healing. Diaphyseal femur fractures were created in elderly mice (18 months, C57BL/6 females), which have a blunted and delayed healing response compared to younger mice, and were stabilized with intramedullary pins...
April 16, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29663540/extreme-toughening-of-soft-materials-with-liquid-metal
#14
Navid Kazem, Michael D Bartlett, Carmel Majidi
Soft and tough materials are critical for engineering applications in medical devices, stretchable and wearable electronics, and soft robotics. Toughness in synthetic materials is mostly accomplished by increasing energy dissipation near the crack tip with various energy dissipation techniques. However, bio-materials exhibit extreme toughness by combining multi-scale energy dissipation with the ability to deflect and blunt an advancing crack tip. Here, we demonstrate a synthetic materials architecture that also exhibits multi-modal toughening, whereby embedding a suspension of micron sized and highly deformable liquid metal (LM) droplets inside a soft elastomer, the fracture energy dramatically increases by up to 50x (from 250 ± 50 J m-2 to 11,900 ± 2600 J m-2 ) over an unfilled polymer...
April 16, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29663403/smoke-induced-neuromuscular-junction-degeneration-precedes-the-fibre-type-shift-and-atrophy-in-copd
#15
Sophia Kapchinsky, Madhusudanarao Vuda, Kayla Miguez, Daren Elkrief, Angela R de Souza, Carolyn J Baglole, Sudhakar Aare, Norah J MacMillan, Jacinthe Baril, Paul Rozakis, Vita Sonjak, Charlotte Pion, Mylène Aubertin-Leheudre, Jose A Morais, R Thomas Jagoe, Jean Bourbeau, Tanja Taivassalo, Russell T Hepple
A neurological basis for the fast fibre shift and atrophy seen in limb muscle of patients with chronic obstructive pulmonary disease (COPD) has not been considered previously. The objective of our study was: (i) to determine if denervation contributes to fast fibre shift and muscle atrophy in COPD; and (ii) to assess using a preclinical smoking mouse model whether chronic tobacco smoke (TS) exposure could initiate denervation by causing neuromuscular junction (NMJ) degeneration. Vastus lateralis muscle biopsies were obtained from severe COPD patients (n = 10 with low fat free mass index [FFMI], 65 y; n = 15 normal FFMI, 65 y) and healthy age- and activity-matched non-smoker control subjects (CON; n = 11, 67 y), to evaluate morphological and transcriptional markers of denervation...
April 16, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29663369/specific-blockade-cd73-alters-the-exhausted-phenotype-of-t-cells-in-head-and-neck-squamous-cell-carcinoma
#16
Wei-Wei Deng, Yi-Cun Li, Si-Rui Ma, Liang Mao, Guang-Tao Yu, Lin-Lin Bu, Ashok B Kulkarni, Wen-Feng Zhang, Zhi-Jun Sun
The adenosine-induced immunosuppression hampers the immune response toward tumor cells and facilitates the tumor cells to evade immunosurveillance. CD73, an ecto-5-nucleotidase, is the ectoenzyme dephosphorylating extracellular AMP to adenosine. Here, using immunocompetent transgenic head and neck squamous cell carcinoma (HNSCC) mouse model, immune profiling showed high expression of CD73 on CD4+ and CD8+ T cells was associated with an 'exhausted' phenotype. Further, treatment with anti-CD73 monoclonal antibody (mAb) significantly blunted the tumor growth in the mouse model, and the blockade of CD73 reversed the 'exhausted' phenotype of CD4+ and CD8+ T cells through downregulation of total expression of PD-1 and CTLA-4 on T cells...
April 16, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29663284/fluoxetine-modulates-the-activity-of-hypothalamic-pomc-neurons-via-mtor-signaling
#17
Ilaria Barone, Riccardo Melani, Marco Mainardi, Gaia Scabia, Manuela Scali, Alessia Dattilo, Giovanni Ceccarini, Paolo Vitti, Ferruccio Santini, Lamberto Maffei, Tommaso Pizzorusso, Margherita Maffei
Hypothalamic proopiomelanocortin (POMC) neurons are important players in the regulation of energy homeostasis; we previously demonstrated that environmental stimulation excites arcuate nucleus circuits to undergo plastic remodeling, leading to altered ratio between excitatory and inhibitory synaptic contacts on these neurons. The widely used selective serotonin reuptake inhibitor fluoxetine (FLX) is known to affect body weight. On the other hand, FLX administration mimics the effects of environmental stimulation on synaptic plasticity in the hippocampus and cortex...
April 16, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29663146/thoraco-lumbar-fractures-with-blunt-traumatic-aortic-injury-in-adult-patients-correlations-and-management
#18
Giorgio Santoro, Alessandro Ramieri, Vito Chiarella, Massimo Vigliotta, Maurizio Domenicucci
PURPOSE: Traumatic thoraco-lumbar spine fracture spine with a concomitant blunt aortic injury is uncommon but potentially a fatal association. Our aim was to clarify: morphology of spinal fractures related to vascular damages and vice versa, diagnostic procedures and decision-making process for the best treatment options for spine and vessels. METHODS: We enrolled 42 cases culled from the literature and five personal ones, reviewing in detail by AO Spine Classification, Society of Vascular Surgery classification and Abbreviated Injury Scale for neurological evaluation...
April 16, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29662817/concomitant-avulsion-injury-of-the-subclavian-vessels-and-the-main-bronchus-caused-by-blunt-trauma
#19
Dongsub Noh, Chan-Kyu Lee, Jung Joo Hwang, Hyun Min Cho
Concomitant rupture of the subclavian vessels and the left main bronchus caused by blunt trauma is a serious condition. Moreover, the diagnosis of a tracheobronchial injury with rupture of the subclavian vessels can be difficult. This report describes the case of a 33-year-old man who suffered from blunt trauma that resulted in the rupture of the left subclavian artery and vein. The patient underwent an operation for vascular control. On postoperative day 3, the left main bronchus was found to be transected on a computed tomography scan and bronchoscopy...
April 2018: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29662682/delayed-intestinal-perforation-secondary-to-blunt-force-abdominal-trauma-in-a-cat
#20
A Taylor, E Cooper, K Ham
Case summary: A 7-month-old intact male domestic shorthair cat was presented 4 h after being hit by a car. It had bilateral inguinal hernias and a mesenteric rent that were repaired surgically and a hematoma in the left retroperitoneal space. No other intra-abdominal abnormalities were identified on abdominal surgical exploration. Approximately 72 h after presentation, the cat started vomiting and developed severe abdominal discomfort. A sudden decrease in mentation and elevation of respiratory rate and effort ensued...
January 2018: JFMS Open Reports
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