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https://www.readbyqxmd.com/read/28320145/vision-loss-in-tuberculous-meningitis
#1
REVIEW
Ravindra Kumar Garg, Hardeep Singh Malhotra, Neeraj Kumar, Ravi Uniyal
Vision loss is a disabling complication of tuberculous meningitis. Approximately, 15% of survivors are either completely or partially blind. All structures of the visual pathway may be affected in tuberculous meningitis. Optic nerve and optic chiasma are most frequently and dominantly affected. Thick-gelatinous exudates lying over the base of brain, are the pathological hallmark of tuberculous meningitis and are responsible for almost all of its major complications, including vision loss. Strangulation of optic nerves and optic chiasma by the exudates, compression over optic chiasma by the dilated third ventricle, raised intracranial pressure, endarteritis, shunt failure, bacterial invasion of optic nerves and drug-induced optic nerve damage are important reasons that are considered responsible for vision loss...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320074/diagnostic-performance-of-clinical-examination-measures-and-pain-presentation-to-identify-patellofemoral-joint-osteoarthritis
#2
J J Stefanik, R Duncan, D T Felson, G Peat
OBJECTIVE: Test the diagnostic performance of a comprehensive set of tests and measures to discriminate patellofemoral (PF) from tibiofemoral (TF) osteoarthritis (OA). METHODS: The Clinical Assessment of the Knee Study is a study of knee pain in the general population. The presence of PF crepitus and pain with PF compression were assessed. Anterior knee pain (AKP) was determined from a knee pain map. Pain with stairs and walking on level ground were assessed with the WOMAC...
March 20, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28320028/extent-of-decompression-of-lumbar-spinal-canal-after-endoscopic-surgery
#3
Naresh Kumar Dewanngan, Yad Ram Yadav, Vijay Singh Parihar, Shailendra Ratre, Yatin Kher, Pushpraj Bhatele
Introduction Endoscopic techniques are being used in lumbar disk disease and lumbar canal stenosis to decompress the spinal canal. The present study analyzed pre- and postoperative magnetic resonance imaging (MRI) measurements of the lumbar canal. Material and Methods This was a prospective study of 30 lumbar levels. Patients < 18 years of age with unilateral compression, previous surgery at the same level, and spinal instability were excluded. Endoscopic posterior decompression was used. Pre- and postoperative MRIs of all the patients were performed...
March 20, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28319883/the-influence-of-a-depressed-scapular-alignment-on-upper-limb-neural-tissue-mechanosensitivity-and-local-pressure-pain-sensitivity
#4
Patricia Martínez-Merinero, Enriqe Lluch, Tomas Gallezo-Izquierdo, Daniel Pecos-Martín, Gustavo Plaza-Manzano, Susana Nuñez-Nagy, Deborah Falla
BACKGROUND: A depressed scapular alignment could lead to prolonged and repetitive stress or compression of the brachial plexus, resulting in sensitization of neural tissue. However, no study has investigated the influence of alignment of the scapulae on sensitization of upper limb neural tissue in otherwise asymptomatic people. In this case-control study, we investigate the influence of a depressed scapular alignment on mechanosensitivity of the upper limb peripheral nervous system as well as pressure pain thresholds (PPT)...
March 10, 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28319821/application-of-p4-polyphase-codes-pulse-compression-method-to-air-coupled-ultrasonic-testing-systems
#5
Honggang Li, Zhenggan Zhou
Air-coupled ultrasonic testing systems are usually restricted by low signal-to-noise ratios (SNR). The use of pulse compression techniques based on P4 Polyphase codes can improve the ultrasound SNR. This type of codes can generate higher Peak Side Lobe (PSL) ratio and lower noise of compressed signal. This paper proposes the use of P4 Polyphase sequences to code ultrasound with a NDT system based on air-coupled piezoelectric transducer. Furthermore, the principle of selecting parameters of P4 Polyphase sequence for obtaining optimal pulse compression effect is also studied...
March 3, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28319727/a-randomised-controlled-trial-of-student-nurse-performance-of-cardiopulmonary-resuscitation-in-a-simulated-family-witnessed-resuscitation-scenario
#6
Gerard Kenny, Isabelle Bray, David Pontin, Rachel Jefferies, John Albarran
This randomized controlled trial, conducted in a UK University nursing department, compared student nurses' performance during a simulated cardiac arrest. Eighteen teams of four students were randomly assigned to one of three scenarios: 1) no family witness; 2) a "quiet" family witness; and 3) a family witness displaying overt anxiety and distress. Each group was assessed by observers for a range of performance outcomes (e.g. calling for help, timing to starting cardiopulmonary resuscitation), and simulation manikin data on the depth and timing of three cycles of compressions...
March 14, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/28318948/comparative-assessment-of-intrinsic-mechanical-stimuli-on-knee-cartilage-and-compressed-agarose-constructs
#7
A Completo, C Bandeiras, F Fonseca
A well-established cue for improving the properties of tissue-engineered cartilage is mechanical stimulation. However, the explicit ranges of mechanical stimuli that correspond to favorable metabolic outcomes are elusive. Usually, these outcomes have only been associated with the applied strain and frequency, an oversimplification that can hide the fundamental relationship between the intrinsic mechanical stimuli and the metabolic outcomes. This highlights two important key issues: the firstly is related to the evaluation of the intrinsic mechanical stimuli of native cartilage; the second, assuming that the intrinsic mechanical stimuli will be important, deals with the ability to replicate them on the tissue-engineered constructs...
March 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28318729/acute-cerebellitis-in-paediatric-patients-our-experience
#8
J P García-Iñiguez, F J López-Pisón, P Madurga Revilla, I Montejo Gañán, M Domínguez Cajal, L Monge Galindo, S B Sánchez Marco, M C García Jiménez
INTRODUCTION: Acute cerebellitis is a rare inflammatory disease with a highly variable clinical course that ranges from benign self-limiting symptoms to a fulminant presentation associated with a high risk of death due to compression of the posterior fossa, acute hydrocephalus, and intracranial hypertension. METHODS: We reviewed clinical, laboratory, and radiological findings from children diagnosed with acute cerebellitis between May 2007 and November 2016. We analysed treatments and clinical and radiological progression...
March 15, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28318183/clinico-radiological-correlation-of-nutcracker-syndrome-a-single-centre-experience
#9
Aysel Taktak, Tulin Hakan Demirkan, Banu Acar, Gökçe Gu R, Adem Köksoy, Nermin Uncu, Fatma Ş Çaycı, Nilgu N Çakar
The term nutcracker syndrome (NS) refers to the compression of left renal vein between the aorta and the superior mesenteric artery (SMA) causing renal venous hypertension. The symptoms vary from asymptomatic hematuria to severe pelvic congestion. The purpose of this study is to evaluate the clinical characteristics of patients with NS and the correlation between clinical and laboratory findings with Doppler sonographic measurements. Sixty-three patients were evaluated (19 boys and 44 girls) since January 2004 to January 2014...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28317997/evidence-of-a-minority-monoclinic-lanio2-5-phase-in-lanthanum-nickelate-thin-films
#10
L López-Conesa, J M Rebled, D Pesquera, N Dix, F Sánchez, G Herranz, J Fontcuberta, C Magén, M J Casanove, S Estradé, F Peiró
LaNiO3 (LNO) thin films of 14 nm and 35 nm thicknesses grown epitaxially on LaAlO3 (LAO) and (LaAlO3)0.3(Sr2TaAlO6)0.7 (LSAT) substrates are studied using High Resolution Transmission Electron Microscopy (HRTEM) and High Angle Annular Dark Field (HAADF) imaging. The strain state of the films is studied using Geometric Phase Analysis (GPA). Results show the successful in-plane adaptation of the films to the substrates, both in the compressive (LAO) and tensile (LSAT) cases. Through the systematic analysis of HRTEM superstructure contrast modulation along different crystal orientations, localized regions of the monoclinic LaNiO2...
March 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28317982/correction-the-load-bearing-ability-of-a-particle-raft-under-the-transverse-compression-of-a-slender-rod
#11
Pingcheng Zuo, Jianlin Liu, Shanpeng Li
Correction for 'The load-bearing ability of a particle raft under the transverse compression of a slender rod' by Pingcheng Zuo et al., Soft Matter, 2017, DOI: .
March 20, 2017: Soft Matter
https://www.readbyqxmd.com/read/28317964/how-does-ytterbium-chloride-interact-with-dmpc-bilayers-a-computational-and-experimental-study
#12
Miguel A Gonzalez, Hanna M G Barriga, Joanna L Richens, Robert V Law, Paul O'Shea, Fernando Bresme
Lanthanide salts have been studied for many years, primarily in Nuclear Magnetic Resonance (NMR) experiments of mixed lipid-protein systems and more recently to study lipid flip-flop in model membrane systems. It is well recognised that lanthanide salts can influence the behaviour of both lipid and protein systems, however a full molecular level description of lipid-lanthanide interactions is still outstanding. Here we present a study of lanthanide-bilayer interactions, using molecular dynamics computer simulations, fluorescence electrostatic potential experiments and nuclear magnetic resonance...
March 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28317941/magnitude-dependent-response-of-osteoblasts-regulated-by-compressive-stress
#13
Xiao-Qing Shen, Yuan-Ming Geng, Ping Liu, Xiang-Yu Huang, Shu-Yi Li, Chun-Dong Liu, Zheng Zhou, Ping-Ping Xu
The present study aimed to investigate the role of magnitude in adaptive response of osteoblasts exposed to compressive stress. Murine primary osteoblasts and MC3T3-E1 cells were exposed to compressive stress (0, 1, 2, 3, 4, and 5 g/cm(2)) in 3D culture. Cell viability was evaluated, and expression levels of Runx2, Alp, Ocn, Rankl, and Opg were examined. ALP activity in osteoblasts and TRAP activity in RAW264.7 cells co-cultured with MC3T3-E1 cells were assayed. Results showed that compressive stress within 5...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317935/a-facile-template-route-to-periodic-mesoporous-organosilicas-nanospheres-with-tubular-structure-by-using-compressed-co2
#14
Xin Huang, Wei Li, Meijin Wang, Xiuniang Tan, Qian Wang, Cheng Wang, Mengnan Zhang, Jing Yuan
Periodic mesoporous organosilicas (PMOs) nanospheres with tubular structure were prepared with compressed CO2 using cationic and anionic mixed surfactant (CTAB/SDS) and triblock copolymer Pluronic P123 as bi-templates. TEM, N2 adsorption-desorption, solid NMR, and FTIR were employed to characterize the obtained materials. Compressed CO2 severed as acidic reagent to promote the hydrolysis of organosilicas, and could tune the morphology and structure of the obtained PMOs nanomaterials simple by adjusting the CO2 pressure during the synthesis process...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317447/intraspinal-bronchogenic-cyst-series-of-case-reports-and-literature-review
#15
Xueying Ma, Wenfei Li, Chen Niu, Fengli Liang, Liping Guo, Tahir Mehmood Shakir, Ming Zhang
PURPOSE: Spinal bronchogenic cysts (SBCs) are rare congenital lesions. The clinical and imaging characteristics and treatment of SBCs are not well known. We studied three cases of SBCs retrospectively, which were registered in our department and analyzed eight case reports which were all published in English, focusing on providing a deeper knowledge of SBCs. METHODS: Three patients with SBCs registered in our department were retrospectively reviewed. Eight reported SBCs cases published from 1992 to 2015 were enrolled in our study...
March 20, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28316965/surgical-outcomes-of-biologic-fixation-for-subtrochanteric-fracture-using-locking-compression-plates
#16
Jae Hoon Jang, Jae Min Ahn, Hee Jin Lee, Nam Hoon Moon
PURPOSE: This study aimed to evaluate the surgical outcomes of biologic plating using locking compression plate-distal femur (LCP-DF) in patients with subtrochanteric fracture of the femur. MATERIALS AND METHODS: Between January 2010 and December 2013, 28 consecutive patients with subtrochanteric fractures of the femur, treated with biologic fixation using LCP-DF, were enrolled. Preoperative values, including patient age, sex, body mass index, fracture type, type of lung injury, and surgical timing from injury to surgery, were retrospectively evaluated...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28316947/analysis-of-the-mechanical-behavior-and-surface-rugosity-of-different-dental-die-materials
#17
Ciro T Niekawa, Simone Kreve, Gisseli Bertozzi A'vila, Gilmar Gil Godoy, J R Eduardo Vieira da Silva, Sergio Candido Dias
AIM: This work evaluated the mechanical and surface behavior of different die materials. The studied materials are polyurethane resin Exakto-Form (Bredent), Gypsum type IV, Fuji Rock EP (Gc), and Durone (Dentsply). MATERIALS AND METHODS: Two metallic matrices molded in polyvinyl siloxane provided 30 cylindrical test specimens for the diametral compression test and 30 hemispherical test specimens for the surface rugosity test. The cylindrical test specimens were submitted to tests of diametral compression strength using a DL2000 universal assay machine, with a load cell of 2000 Kgf and constant speed of 1 mm/min connected to the software...
January 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28316928/double-aortic-arch-diagnosed-in-a-44-year-old-woman-with-recurring-respiratory-infections
#18
Ana Fenández-Tena, Cristina Martínez-González
Complete vascular rings are originated because of the persistence of the fourth aortic arches, which surround the trachea and esophagus partially or completely, compressing them. The most common type of complete vascular ring is the double aortic arch. Symptoms usually appear in the first months of life, and are provoked by esophageal and tracheal compression. The diagnosis is usually made through the chest X-ray and the esophagogram in patients with dysphagia. We present a case in which the diagnosis of a double aortic arch was made in adulthood, suspected through a spirometry test and a chest X-ray...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28316282/motion-compensated-cine-cmr-of-the-fetal-heart-using-radial-undersampling-and-compressed-sensing
#19
Christopher W Roy, Mike Seed, John C Kingdom, Christopher K Macgowan
BACKGROUND: To develop and evaluate a reconstruction framework for high resolution time-resolved CMR of the fetal heart in the presence of motion. METHODS: Data were acquired using a golden angle radial trajectory in seven fetal subjects and reconstructed as real-time images to detect fetal movement. Data acquired during through-plane motion were discarded whereas in-plane motion was corrected. A fetal cardiac gating signal was extracted to sort the corrected data by cardiac phase, allowing reconstruction of cine images...
March 20, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28316225/-the-clinical-impact-of-artery-first-approach-combined-with-vascular-resection-and-reconstruction-in-the-treatment-of-pancreatic-head-carcinoma
#20
J L Huang, W G Li, F Z Chen, Z J Su, F M Li, B Liu
Objective: To evaluate the application of artery first, combined vascular resection and reconstruction in the treatment of pancreatic head carcinoma. Methods: The clinical data of 13 patients with pancreatic head cancer were retrospectively analyzed from February 2014 to March 2016 in the Affiliated Hospital of Xiamen University. Preoperative computed tomography of high resolution layer or magnetic resonance imaging examination demonstrated pancreatic head carcinoma, as well as close adhesion, stenosis, compression or displacement of superior mesenteric vein or portal vein wall...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
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