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https://www.readbyqxmd.com/read/28323670/prevention-of-respiratory-complications-of-the-surgical-patient-actionable-plan-for-continued-process-improvement
#1
Katarina J Ruscic, Stephanie D Grabitz, Maíra I Rudolph, Matthias Eikermann
PURPOSE OF REVIEW: Postoperative respiratory complications (PRCs) increase hospitalization time, 30-day mortality and costs by up to $35 000. These outcomes measures have gained prominence as bundled payments have become more common. RECENT FINDINGS: Results of recent quantitative effectiveness studies and clinical trials provide a framework that helps develop center-specific treatment guidelines, tailored to minimize the risk of PRCs. The implementation of those protocols should be guided by a local, respected, and visible facilitator who leads proper implementation while inviting center-specific input from surgeons, anesthesiologists, and other perioperative stakeholders...
March 20, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28319661/atomistic-insights-into-nucleation-and-formation-of-hexagonal-boron-nitride-on-ni-from-first-principles-based-reactive-molecular-dynamics-simulations
#2
Song Liu, Adri C T van Duin, Diana M van Duin, Bin Liu, James H Edgar
Atomistic-scale insights into the growth of a continuous, atomically thin hexagonal boron nitride (hBN) lattice from elemental boron and nitrogen on Ni substrates were obtained from multi-scale modeling combining density functional theory (DFT) and reactive molecular dynamics (rMD). The quantum mechanical calculations focused on the adsorption and reaction energetics for the hBN building-block species, i.e., atomic B, N, BxNy (x, y = 1-2), on Ni(111) and Ni(211), and the diffusion pathways of elemental B and N on these slab model surfaces and in the sublayer...
March 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28319643/grooved-glaucoma-drainage-devices-that-continuously-deliver-cyclosporine-a-decrease-postsurgical-scar-formation-in-rabbit-eyes
#3
Zhaoxing Dai, Xiaobo Yu, Jianguo Sun, Xinghuai Sun
Purpose: To study the functional outcomes of filtration surgery by implanting improved glaucoma drainage devices (GDDs) comprising surface grooves and a composite coating of cyclosporine A (CsA) and PLGA in experimental rabbit eyes. Methods: Improved GDDs were designed and prepared by modifying normal GDD with surface grooves and a CsA-PLGA composite coating. Normal GDDs, grooved GDDs (G-GDDs), and G-GDDs with a CsA-PLGA composite coating (CsA@G-GDD) were implanted into 18 rabbit eyes (six eyes per group)...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28319550/continuous-transversus-abdominis-plane-nerve-blocks-does-varying-local-anesthetic-delivery-method-automatic-repeated-bolus-versus-continuous-basal-infusion-influence-the-extent-of-sensation-to-cold-a-randomized-triple-masked-crossover-study-in-volunteers
#4
Bahareh Khatibi, Engy T Said, Jacklynn F Sztain, Amanda M Monahan, Rodney A Gabriel, Timothy J Furnish, Johnathan T Tran, Michael C Donohue, Brian M Ilfeld
BACKGROUND: It remains unknown whether continuous or scheduled intermittent bolus local anesthetic administration is preferable for transversus abdominis plane (TAP) catheters. We therefore tested the hypothesis that when using TAP catheters, providing local anesthetic in repeated bolus doses increases the cephalad-caudad cutaneous effects compared with a basal-only infusion. METHODS: Bilateral TAP catheters (posterior approach) were inserted in 24 healthy volunteers followed by ropivacaine 2 mg/mL administration for a total of 6 hours...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28318490/emulsion-based-synthesis-of-porous-silica
#5
REVIEW
Hanna Gustafsson, Krister Holmberg
We review the use of various types of emulsions as media for synthesis of porous silica particles. The use of high internal phase emulsions, i.e. emulsions with a high ratio of dispersed to continuous phase, is an approach that has attracted considerable attention. Polymerization of the continuous phase followed by removal of the dispersed phase leads to a material with an even distribution of pores if the emulsion droplets are uniform in size. Another route is to use particle stabilized emulsions as template...
March 11, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28306584/serratus-anterior-plane-block-to-address-post-thoracotomy-and-chest-tube-related-pain-a-report-on-3-cases
#6
George M Chu, G Craig Jarvis
In this case report, the serratus anterior plane block was used in conjunction with multilevel continuous thoracic paravertebral blocks (TPVB) and general anesthesia in 3 thoracotomy cases. All blocks were accompanied by use of catheters that allowed continuous local anesthetic infusions and intermittent local anesthetic bolus injections to address postoperative pain. In all 3 patients, the serratus anterior plane block provided analgesia for chest tube-related pain that was not provided by the TPVB alone.
March 16, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28306309/thermal-fluctuations-of-ferroelectric-nanodomains-in-a-ferroelectric-dielectric-pbtio_-3-srtio_-3-superlattice
#7
Qingteng Zhang, Eric M Dufresne, Pice Chen, Joonkyu Park, Margaret P Cosgriff, Mohammed Yusuf, Yongqi Dong, Dillon D Fong, Hua Zhou, Zhonghou Cai, Ross J Harder, Sara J Callori, Matthew Dawber, Paul G Evans, Alec R Sandy
Ferroelectric-dielectric superlattices consisting of alternating layers of ferroelectric PbTiO_{3} and dielectric SrTiO_{3} exhibit a disordered striped nanodomain pattern, with characteristic length scales of 6 nm for the domain periodicity and 30 nm for the in-plane coherence of the domain pattern. Spatial disorder in the domain pattern gives rise to coherent hard x-ray scattering patterns exhibiting intensity speckles. We show here using variable-temperature Bragg-geometry x-ray photon correlation spectroscopy that x-ray scattering patterns from the disordered domains exhibit a continuous temporal decorrelation due to spontaneous domain fluctuations...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28301259/novel-treatment-of-melanoma-combined-parasite-derived-peptide-gk-1-and-anti-programmed-death-ligand-1-therapy
#8
Jesus Vera-Aguilera, Armando Perez-Torres, Diego Beltran, Cynthia Villanueva-Ramos, Mitchell Wachtel, Eduardo Moreno-Aguilera, Carlos Vera-Aguilera, Gary Ventolini, Raul Martínez-Zaguilán, Souad R Sennoune
Recent successes in the development of new therapies for metastatic melanoma, such as mitogen-activated protein kinase pathway inhibitors, anticytotoxic T lymphocyte-associated antigen-4, and programmed cell death protein 1/programmed cell death ligand 1 (PD-L1) pathway-blocking antibodies, as well as combination strategies, all yielded promising results, changing the continually evolving landscape of therapeutic options for patients with melanoma. One promising new treatment modality is based on the use of immunomodulatory monoclonal antibodies that enhance the function of components of the antitumor immune response such as T cells or block immunologic checkpoints that restrain effective antitumor immunity...
March 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28300551/role-of-caveolin-1-vascular-endothelial-growth-factor-pathway-in-basic-fibroblast-growth-factor-induced-angiogenesis-and-neurogenesis-after-treadmill-training-following-focal-cerebral-ischemia-in-rats
#9
Qiongyi Pang, Huimei Zhang, Zhenzhen Chen, Yudan Wu, Min Yidian Bai Liu, Yun Zhao, Fengxia Tu, Chan Liu, Xiang Chen
Exercise is known to aid functional recovery following ischemia, though the mechanisms responsible for the beneficial effects of exercise on recovery from ischemic stroke are not fully understood. Basic fibroblast growth factor (bFGF) contributes to angiogenesis and promotes neurologic functional recovery after stroke. The present study aimed to investigate the possible mechanisms whereby treadmill exercise ameliorated impaired angiogenesis and neurogenesis following transient cerebral ischemia in middle cerebral artery occlusion (MCAO) rats...
March 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28298773/comparison-of-nerve-stimulation-guided-axillary-brachial-plexus-block-single-injection-versus-four-injections-a-prospective-randomized-double-blind-study
#10
Santoshi V Badiger, Sameer N Desai
BACKGROUND: A variety of techniques have been described for the axillary block using nerve stimulator, either with single injection, two, three, or four separate injections. Identification of all the four nerves is more difficult and time-consuming than other methods. AIMS: Aim of the present study is to compare success rate, onset, and duration of sensory and motor anesthesia of axillary block using nerve stimulator, either with single injection after identification of any one of the four nerves or four separate injections following identification of each of nerve...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28295803/functional-brain-segmentation-using-inter-subject-correlation-in-fmri
#11
Jukka-Pekka Kauppi, Juha Pajula, Jari Niemi, Riitta Hari, Jussi Tohka
The human brain continuously processes massive amounts of rich sensory information. To better understand such highly complex brain processes, modern neuroimaging studies are increasingly utilizing experimental setups that better mimic daily-life situations. A new exploratory data-analysis approach, functional segmentation inter-subject correlation analysis (FuSeISC), was proposed to facilitate the analysis of functional magnetic resonance (fMRI) data sets collected in these experiments. The method provides a new type of functional segmentation of brain areas, not only characterizing areas that display similar processing across subjects but also areas in which processing across subjects is highly variable...
March 10, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28294321/artesunate-inhibits-rankl-induced-osteoclastogenesis-and-bone-resorption-in-vitro-and-prevents-lps-induced-bone-loss-in-vivo
#12
Cheng-Ming Wei, Qian Liu, Fang-Ming Song, Xi-Xi Lin, Yi-Ji Su, Jiake Xu, Lin Huang, Shao-Hui Zong, Jin-Min Zhao
Osteoclasts are multinuclear giant cells responsible for bone resorption in lytic bone diseases such as osteoporosis, arthritis, periodontitis, and bone tumors. Due to the severe side-effects caused by the currently available drugs, a continuous search for novel bone-protective therapies is essential. Artesunate (Art), the water-soluble derivative of artemisinin has been investigated owing to its anti-malarial properties. However, its effects in osteoclastogenesis have not yet been reported. In this study, Art was shown to inhibit the nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis, the mRNA expression of osteoclastic-specific genes, and resorption pit formation in a dose-dependent manner in primary bone marrow-derived macrophages cells (BMMs)...
March 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28293944/navigating-the-chiral-pool-in-the-total-synthesis-of-complex-terpene-natural-products
#13
Zachary G Brill, Matthew L Condakes, Chi P Ting, Thomas J Maimone
The pool of abundant chiral terpene building blocks (i.e., "chiral pool terpenes") has long served as a starting point for the chemical synthesis of complex natural products, including many terpenes themselves. As inexpensive and versatile starting materials, such compounds continue to influence modern synthetic chemistry. This review highlights 21st century terpene total syntheses which themselves use small, terpene-derived materials as building blocks. An outlook to the future of research in this area is highlighted as well...
March 15, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28292551/the-effect-of-paravertebral-block-on-maxillofacial-free-flap-survival
#14
A M A Habib, O M Zanaty, H F Anwer, D Abo Alia
The purpose of this study was to investigate whether continuous paravertebral block at levels T1 and T2 with bupivacaine infusion can improve the survival of free flaps in maxillofacial reconstruction. The study was designed as a randomized controlled trial and included 36 adult patients scheduled for maxillofacial free flap reconstruction under general anesthesia. Patients were randomly divided into two groups: patients in group A received continuous paravertebral block at levels T1 and T2, while patients in group B served as controls...
March 11, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28290972/malignant-hyperthermia-susceptibility-and-fitness-for-duty
#15
Michael A Lee, Erin B McGlinch, Maria C McGlinch, John F Capacchione
INTRODUCTION: Malignant hyperthermia (MH) is an inherited hypermetabolic condition characterized by uncontrolled calcium release from the sarcoplasmic reticulum of skeletal muscle, usually from exposure to inhaled general anesthetics and/or the depolarizing neuromuscular blocking agent succinylcholine. Multiple case reports now reveal that crises may be precipitated by environmental factors such as exercise or high ambient temperatures. Common signs of an MH crisis include life-threatening hyperthermia, metabolic acidosis, muscle rigidity, and tachycardia...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28290792/-possibilities-to-control-early-stages-of-inflammation-in-and-of-thrombus-formation-in-cardiovascular-pathology
#16
E F Barinov
Circulating platelet-leukocyte aggregates (PLA) are present in patients with various diseases of the cardiovascular system and are considered as sensitive markers of platelet activation. At the same time characteristics of PLA in the circulating blood continue to be discussed in the context of the search for early markers of inflammation, which would bring us close to ability to limit the development of inflammatory response at the earliest stage. This review is devoted to analysis of studies of LA in the context of assessment of functional activity of platelets and possibilities of cooperation of blood cells during activation of leukocytes at early stage of realization of inflammation process...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28289574/digital-morphing-wing-active-wing-shaping-concept-using-composite-lattice-based-cellular-structures
#17
Benjamin Jenett, Sam Calisch, Daniel Cellucci, Nick Cramer, Neil Gershenfeld, Sean Swei, Kenneth C Cheung
We describe an approach for the discrete and reversible assembly of tunable and actively deformable structures using modular building block parts for robotic applications. The primary technical challenge addressed by this work is the use of this method to design and fabricate low density, highly compliant robotic structures with spatially tuned stiffness. This approach offers a number of potential advantages over more conventional methods for constructing compliant robots. The discrete assembly reduces manufacturing complexity, as relatively simple parts can be batch-produced and joined to make complex structures...
March 1, 2017: Soft Robotics
https://www.readbyqxmd.com/read/28288650/analysis-of-an-international-collaboration-for-capacity-building-of-human-resources-for-eye-care-case-study-of-the-college-college-vision-2020-link
#18
Nyawira Mwangi, Marcia Zondervan, Covadonga Bascaran
BACKGROUND: There is an extreme health workforce shortage in Eastern, Central, and Southern Africa. Shortage of eye care workers impedes effective implementation of prevention of blindness programs. The World Health Organization has identified education, partnership, leadership, financing, and policy as intertwined interventions that are critical to resolving this crisis on the long term. CASE PRESENTATION: The VISION 2020 LINK between the College of Ophthalmology of Eastern, Central, and Southern Africa and the Royal College of Ophthalmologists in the United Kingdom aims to increase the quantity and quality of eye care training in East, Central, and Southern Africa through a focus on five strategic areas: fellowship examination for ophthalmologists, training the trainers, curriculum development for residents in ophthalmology and ophthalmic clinical officers, continuous professional development (CPD), and mentoring program for young ophthalmologists...
March 14, 2017: Human Resources for Health
https://www.readbyqxmd.com/read/28286209/esophageal-adenocarcinoma-cells-and-xenograft-tumors-exposed-to-erb-b2-receptor-tyrosine-kinase-2-and-3-inhibitors-activate-transforming-growth-factor-beta-signaling-which-induces-epithelial-to-mesenchymal-transition
#19
Eva A Ebbing, Anne Steins, Evelyn Fessler, Phylicia Stathi, Willem Joost Lesterhuis, Kausilia K Krishnadath, Louis Vermeulen, Jan Paul Medema, Maarten F Bijlsma, Hanneke W M van Laarhoven
BACKGROUND & AIMS: Drugs that inhibit the erb-b2 receptor tyrosine kinase 2 (ERBB2 or HER2) are the standard treatment of patients with different types of cancer, including HER2-overexpressing gastroesophageal tumors. Unfortunately, cancer cells become resistant to these drugs, so overall these drugs provide little benefit to patients with these tumors. We investigated mechanisms that mediate resistance of esophageal adenocarcinoma (EAC) cells and patient-derived xenograft (PDX) tumors to ERBB inhibitors...
March 9, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28284947/behavioral-characterization-of-blocking-the-erbb-signaling-during-adolescent-and-adulthood-in-reward-liking-preference-and-reward-related-learning
#20
Hagar Tadmor, Idit Golani, Eshkar Dvir, Ilana Kremer, Alon Shamir
Adolescence is a critical period in brain development. During this critical period the seeking for hedonic activities is increased, and their activity signals are stronger than the regulatory signals of judgment and reasoning. We recently reported that alteration of ErbB signaling during this period led to elevated striatal dopamine levels and reduced preference for sweetness without affecting locomotor activity and exploratory behavior. In the current study, we extend our findings and explore whether inhibition of the ErbB pathway during adolescence or adulthood also affects alcohol preference (hedonic "liking"), avoidance learning, and motivational reward "wanting"...
March 8, 2017: Behavioural Brain Research
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