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https://www.readbyqxmd.com/read/29667423/suturing-technique-for-scleral-fixation-of-toric-intraocular-lens-in-the-traumatic-aphakic-eye-with-corneal-astigmatism
#1
Qintuo Pan, Zhengwei Yang, Xiaomeng Chen, Wenlong Wei, Zhisheng Ke, Ding Chen, Fang Huang, Junyong Cai, Zhenquan Zhao
PURPOSE: To describe the clinical outcomes of traumatic aphakic eyes with corneal astigmatism after using a novel technique for toric intraocular lens suture fixation. METHODS: In total, 12 eyes of 12 patients who underwent a new scleral suture fixation technique of one-piece toric intraocular lens (SN6AT series, Alcon Inc., TX, USA) were included in our retrospective study. Preoperative patient status, postoperative visual acuity and refractive outcomes, postoperative intraocular lens rotation, tilt, decentration, and complications were analyzed...
April 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29666955/charge-ordering-in-the-metal-insulator-transition-of-v-doped-cro-2-in-the-rutile-structure
#2
Sarajit Biswas
Electronic, magnetic, and structural properties of pure and V-doped CrO2 were extensively investigated utilizing density functional theory. Usually, pure CrO2 is a half-metallic ferromagnet with conductive spin majority species and insulating spin minority species. This system remains in its half-metallic ferromagnetic phase even at 50% V-substitution for Cr within the crystal. The V-substituted compound Cr0.5 V0.5 O2 encounters metal-insulator transition upon the application of on-site Coulomb repulsion U = 7 eV preserving its ferromagnetism in the insulating phase...
April 17, 2018: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29666120/true-rotational-stability-of-a-single-piece-hydrophobic-intraocular-lens
#3
Daniel Schartmüller, Sabine Schriefl, Luca Schwarzenbacher, Christina Leydolt, Rupert Menapace
BACKGROUND: To evaluate rotation and its influencing factors of an aspheric one-piece hydrophobic acrylic intraocular lens (IOL) Vivinex XY1 during 6 months after operation. METHODS: In this institutional trial, 122 eyes of 66 patients were implanted with a non-toric aspheric IOL Vivinex XY1 (Hoya Corporation, Tokyo, Japan). IOL alignment was assessed at the end of surgery, 1 hour, 1 week, 1 month and 6 months after implantation. Confounding factors such as axial length, presence of anterior fibrosis and randomised implantation in four different intended axes (0°, 45°, 90°, 135°) were evaluated...
April 17, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29665606/-organic-anxiety-disorder-in-posterior-cortical-atrophy
#4
Denise Linsmayer, Christoph Kindler, Wiebke Anheier, Julia Reiff, Per Suppa, Dieter F Braus
We report on a 54-year-old patient who described a progressive anxiety disorder additionally recurrent sight disorders associated with room-tilt illusions and subjective visual field defects. She also reported disturbances of concentration and attention and of a modified typeface accompanied by difficulty in writing with an increase of grammatical errors. Based on the case, the relevant anamnestic and clinical data, the neuropsychological and neuroimaging findings and also differential diagnosis of the posterior cortical atrophy, a rare neurodegenerative disease, will be discussed...
April 17, 2018: Psychiatrische Praxis
https://www.readbyqxmd.com/read/29664817/postoperative-status-of-global-sagittal-alignment-with-compensation-in-adult-spinal-deformity
#5
Satoshi Inami, Hiroshi Moridaira, Daisaku Takeuchi, Haruki Ueda, Yo Shiba, Futoshi Asano, Hiromichi Aoki, Hiroshi Taneichi
STUDY DESIGN: Retrospective study of consecutive patients undergoing surgery for adult spinal deformity (ASD). OBJECTIVE: The aim of this study was to classify postoperative ASD patients by sagittal compensation and characterize the features of each group. SUMMARY OF BACKGROUND DATA: Sagittal compensatory mechanisms to keep the erect position would function in not only non-operative ASD patients, but also in postoperative patients. However, details of sagittal compensatory mechanisms after surgery have been unclear, because the majority of previous studies examined the compensatory mechanisms in non-operative patients METHODS...
April 16, 2018: Spine
https://www.readbyqxmd.com/read/29664645/mesoscopic-elastic-distortions-in-gaas-quantum-dot-heterostructures
#6
Anastasios Pateras, Joonkyu Park, Youngjun Ahn, Jack A Tilka, Martin V Holt, Christian Reichl, Werner Wegscheider, Timothy Baart, Juan Pablo Dehollain, Uditendu Mukhopadhyay, Lieven M K Vandersypen, Paul G Evans
Quantum devices formed in high-electron-mobility semiconductor heterostructures provide a route through which quantum mechanical effects can be exploited on length scales accessible to lithography and integrated electronics. The electrostatic definition of quantum dots in semiconductor heterostructure devices intrinsically involves the lithographic fabrication of intricate patterns of metallic electrodes. The formation of metal/semiconductor interfaces, growth processes associated with polycrystalline metallic layers, and differential thermal expansion produce elastic distortion in the active areas of quantum devices...
April 17, 2018: Nano Letters
https://www.readbyqxmd.com/read/29664402/free-energy-simulations-reveal-molecular-mechanism-for-functional-switch-of-a-dna-helicase
#7
Wen Ma, Kevin D Whitley, Yann R Chemla, Zaida Luthey-Schulten, Klaus Schulten
Helicases play key roles in genome maintenance, yet it remains elusive how these enzymes change conformations and how transitions between different conformational states regulate nucleic acid reshaping. Here we developed a computational technique combining structural bioinformatics approaches and atomic-level free energy simulations to characterize how the E. coli DNA repair enzyme UvrD changes its conformation at the fork junction to switch its function from unwinding to rezipping DNA. The lowest free energy path shows that UvrD opens the interface between two domains, allowing the bound ssDNA to escape...
April 17, 2018: ELife
https://www.readbyqxmd.com/read/29663143/vertebral-body-osteonecrosis-proposal-of-a-treatment-oriented-classification-system
#8
Matteo Formica, Andrea Zanirato, Luca Cavagnaro, Marco Basso, Stefano Divano, Claudio Lamartina, Pedro Berjano, Lamberto Felli, Carlo Formica
PURPOSE: To present a classification system for vertebral body osteonecrosis (VBON) based on imaging findings and sagittal alignment and consequently to propose treatment guidelines. METHODS: Chart review and classification of imaging and clinical findings. An analysis of literature about VBON has been evaluated to conceive the classification. The current data allows to correlate radiological findings with different stages of the pathophysiological process and consequently to propose a patient-tailored treatment plan...
April 16, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29662778/comparisons-of-slice-encoding-metal-artifact-correction-and-view-angle-tilting-magnetic-resonance-imaging-and-traditional-digital-radiography-in-evaluating-chronic-hip-pain-after-total-hip-arthroplasty
#9
Yimin Ma, Panli Zuo, Mathias Nittka, Xiaoguang Cheng, Hongyi Shao, Chen Wang
Purpose: The aims of this study were (1) to compare the areas of metal-induced artifacts and definition of periprosthetic structures between patients scanned with the slice-encoding metal artifact correction and view-angle tilting (SEMAC-VAT) turbo-spin-echo (TSE) prototype and those scanned with the standard TSE magnetic resonance (MR) sequences and (2) to further clarify the superiority of the SEMAC-VAT MR imaging technique at detecting lesions in patients after total hip arthroplasty (THA), compared with digital radiography (DR)...
January 2018: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29660670/efficacy-of-early-passive-tilting-in-minimizing-icu-acquired-weakness-a-randomized-controlled-trial
#10
Céline Sarfati, Alex Moore, Catherine Pilorge, Priscilla Amaru, Paula Mendialdua, Emilie Rodet, François Stéphan, Saïda Rezaiguia-Delclaux
No abstract text is available yet for this article.
April 5, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29659436/a-novel-technique-of-ultrasound-guided-selective-mandibular-nerve-block-with-a-lateral-pterygoid-plate-approach-a-cadaveric-study
#11
Wirinaree Kampitak, Tanvaa Tansatit, Yasuyuki Shibata
BACKGROUND AND OBJECTIVES: We aimed to describe a novel technique of ultrasound-guided selective mandibular nerve block with a lateral pterygoid plate (LPP) approach and to assess its feasibility and accuracy in a soft cadaver model. METHODS: Ten soft cadavers were studied. A curved array ultrasound transducer was applied over 1 side of the face of the cadaver, in an open-mouth position. The transducer was placed transversely below the zygomatic arch and tilted in the caudal-to-cranial direction to identify the boundary of the LPP...
April 14, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29659421/air-splinting-maneuver-during-flexible-bronchoscopy-a-cross-sectional-study
#12
Rahul Magazine, Bharti Chogtu
BACKGROUND: Magazine's maneuver was developed for ease of insertion of the flexible bronchoscope, on encountering a closed lumen at the nasopharynx-oropharynx junction. The purposes of this study were to find the frequency of occurrence of such luminal closures and to compare the efficacy of Magazine's maneuver, with other variations of the maneuver, in improving visualization of the upper airway. MATERIALS AND METHODS: Patients aged 18 years and above who were undergoing flexible bronchoscopy were included, and their demographic and clinical data were noted...
April 13, 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29659244/chemical-mapping-of-nano-defects-within-2d-covalent-monolayers-by-tip-enhanced-raman-spectroscopy
#13
Feng Shao, Wenyang Dai, Yao Zhang, Wei Zhang, A Dieter Schlüter, Renato Zenobi
Nanoscale defects in monolayers (MLs) of two-dimensional (2D) materials, such as graphene, transition metal dichalcogenides (TMDCs), and 2D polymers (2DPs), can alter their physical, mechanical, optoelectronic, and chemical properties. However, detailed information about nano-defects within 2D covalent monolayers is difficult to obtain because it requires highly selective and sensitive techniques that can provide chemical information at the nanoscale. Here, we report a 2D imine-linked ML prepared from two custom-designed building blocks by dynamic imine chemistry at the air/water interface, in which an acetylenic moiety in one of the blocks was used as a spectroscopic reporter for nano-defects...
April 16, 2018: ACS Nano
https://www.readbyqxmd.com/read/29658863/swallow-syncope-after-whiplash-neck-injury
#14
Luka Lipar, Pia Vovk, Tereza Weiss, Jus Ksela
Swallow syncope is a rare dysautonomic syndrome characterized by temporary loss of consciousness upon swallowing solid foods or liquids, displaying primarily in individuals with an underlying structural or functional esophageal or cardiac pathology. However, the evidence also suggests that isolated vagal dysfunction or abnormal reactions of esophageal mechanoreceptors after mechanical irritation, demyelination, or trauma can potentially evoke  a cardioinhibitory response or vasodepression upon swallowing. We present a case of a 49-year-old otherwise healthy female patient who developed swallow syncope two weeks after whiplash neck injury acquired in a rear-end collision...
March 5, 2018: Heart Surgery Forum
https://www.readbyqxmd.com/read/29658528/gait-changes-in-patients-after-reconstruction-of-facial-bones-with-fibula-and-iliac-crest-free-vascularized-flaps
#15
Małgorzata Syczewska, Romuald Krajewski, Monika Kirwil, Ewa Szczerbik, Małgorzata Kalinowska
PURPOSE: Patients with malignant tumours of the oral cavity require its surgical removal and reconstruction of the bone and soft tissues. The grafts are obtained either from leg (fibula) or pelvis (iliac crest). The removal of grafts from the locomotor apparatus can impair the gait. The aim of this study was to find out how the localization of donor site influences the gait pattern. METHODS: Results obtained for 30 patients were analyzed (16 fibula graft, 14 iliac crest graft)...
2018: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29658187/overview-of-intensive-care-unit-related-physical-and-functional-impairments-and-rehabilitation-related-devices
#16
REVIEW
Katie Koester, Heidi Troeller, Sara Panter, Emily Winter, Jayshil J Patel
Rehabilitation after critical illness requires a multidisciplinary effort. Nutrition support of critically ill patients aims to correct the imbalance between protein synthesis and protein degradation to maximize strengthening and muscle mass, whereas physical and occupational therapists focus on optimizing strength and mobility through functional activity to help intensive care (ICU) patients return to their precritical illness level of function and improve quality of life. Early mobility has become the new standard of care for ICU patients...
April 2018: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/29658010/impact-of-intrinsic-structural-properties-on-the-hydration-of-2-1-layer-silicates
#17
Florian Schnetzer, Cliff T Johnston, Gnanasiri S Premachandra, Nicolas Giraudo, Rainer Schuhmann, Peter Thissen, Katja Emmerich
Several 2:1 layer silicates comprising di- and trioctahedral smectites of different layer charge between 0.2 and 0.4 per formula unit and a trioctahedral vermiculite were studied by an in situ method that allowed Fourier transform infrared spectroscopy (FTIR) spectra and water vapor sorption isotherms to be obtained simultaneously. The particle size and shape of the selected materials were determined using X-ray diffraction and gas adsorption analyses, which provided an estimate of the particle size with resulting edge site proportion...
December 21, 2017: ACS Earth & Space Chemistry
https://www.readbyqxmd.com/read/29657469/anatomical-differences-in-the-bony-structure-of-l5-and-l4-a-possible-classification-according-to-the-lateral-tilt-of-the-pedicles
#18
Giorgio Cacciola, Giuseppe Anastasi, Salvatore Bertino, Giuseppina Rizzo, Giuseppina Cutroneo, Fabio Trimarchi, Alessandro Pisani, Pietro Cavaliere, Andrea Barbanera, Daniele Bruschetta
The aim of this study is to underline the necessity of a better knowledge of pedicles anatomy in order to improve surgical treatment of spine disorders such us low back pain, spinal fractures and scholiosis. A classification of pedicles lateral tilt which could help surgeons before the application of screws during transpedicular fixation is reported. Anatomical differences in the orientiation of the pedicles of L5 and L4 have been found. For each patient that met the inclusion criteria underwent: Radiography of the lumbo-sacral region, CT examination, MRI acquisition...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29656970/predictability-of-pelvic-tilt-during-total-hip-arthroplasty-using-a-traction-table
#19
Paul S Roettges, Jack R Hannallah, Jordan L Smith, John T Ruth
BACKGROUND: Pelvic positioning during total hip arthroplasty (THA) affects functional position of the acetabular component. We sought to evaluate whether preoperative pelvic tilt correlated with intraoperative pelvic tilt while positioned on a traction table for direct anterior THA and furthermore to evaluate whether there was a consistent and predictable effect on pelvic tilt while positioned for surgery. METHODS: We evaluated the sagittal spinopelvic preoperative standing and supine pelvic tilt radiographic measurements as compared with intraoperative measurements of 25 patients...
March 16, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29656906/exhibition-of-stochastic-resonance-in-vestibular-tilt-motion-perception
#20
R C Galvan-Garza, T K Clark, A P Mulavara, C M Oman
BACKGROUND: Stochastic Resonance (SR) is a phenomenon broadly described as "noise benefit". The application of subsensory electrical Stochastic Vestibular Stimulation (SVS) via electrodes behind each ear has been used to improve human balance and gait, but its effect on motion perception thresholds has not been examined. OBJECTIVE: This study investigated the capability of subsensory SVS to reduce vestibular motion perception thresholds in a manner consistent with a characteristic bell-shaped SR curve...
April 3, 2018: Brain Stimulation
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