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Koichiro Mandai, Koji Uno, Yuki Ueda, Yusuke Okada, Kenjiro Yasuda
Background: Efficacy of a physician-controlled wire-guided cannulation of the bile duct has been reported. This study aimed to evaluate a novel sphincterotome with a short tip and a short wire, which can be bowed compactly compared to conventional sphincterotomes. Methods: This was a single-arm, single-center, prospective study. We enrolled patients with choledocholithiasis and/or obstructive jaundice and/or cholangitis for whom endoscopic sphincterotomy was planned...
February 2018: Gastroenterology Research
Chang-Wan Kim, Chang-Rack Lee
Purpose: To evaluate the effects of femoral lateral bowing on coronal alignment after total knee arthroplasty (TKA) and examine whether the use of navigation helps obtain better postoperative coronal alignment and component position. Materials and Methods: Radiological results and outlier rates were compared between the conventional TKA group and the navigation-assisted TKA group, and factors associated with postoperative alignment were evaluated. For clinical assessment, patient-reported outcomes were used...
March 1, 2018: Knee Surgery & related Research
M A Korzeniowski, J M Crook, D Bowes, M Gaztañaga, A Ots, J Jazwal, J Rose, A Tétreault-Laflamme, L Pilote, R Halperin, D Kim, D Petrik, C Araujo, F Bachand
PURPOSE: The purpose of this study was to determine the efficacy of 8 weeks of degarelix for prostate downsizing before interstitial brachytherapy. We also report associated toxicity and the time course of endocrine recovery over the following 12 months. METHODS AND MATERIALS: Fifty patients were accrued to an open-label Phase II clinical trial ( ID NCT01446991). Baseline prostate transrectal ultrasound (TRUS) was performed on all patients followed by degarelix administration and a repeat TRUS at Week 8...
February 2, 2018: Brachytherapy
Alex Hs Harris, Alfred C Kuo, Thomas Bowe, Shalini Gupta, David Nordin, Nicholas J Giori
BACKGROUND: Statistical models to preoperatively predict patients' risk of death and major complications after total joint arthroplasty (TJA) could improve the quality of preoperative management and informed consent. Although risk models for TJA exist, they have limitations including poor transparency and/or unknown or poor performance. Thus, it is currently impossible to know how well currently available models predict short-term complications after TJA, or if newly developed models are more accurate...
December 13, 2017: Journal of Arthroplasty
Keisuke Nagasaki, Gen Nishimura, Toru Kikuchi, Hiromi Nyuzuki, Sunao Sasaki, Yohei Ogawa, Akihiko Saitoh
Omodysplasia-2 (OMOD2; OMIM%16475) is a rare autosomal dominant (AD) skeletal dysplasia characterized by shortened humeri, short first metacarpal, craniofacial dysmorphism (frontal bossing, depressed nasal bridge, bifid nasal tip, and long philtrum), and variable degrees of genitourinary anomalies. This clinical phenotype overlaps with that of AD type Robinow syndrome. Recently, a mutation in FZD2 encoding a Frizzled Class Receptor 2 has been identified in a family with AD omodysplasia (an affected girl and her affected mother)...
January 31, 2018: American Journal of Medical Genetics. Part A
Laura Bishop, Werner Goebl
Ensemble musicians typically exchange visual cues to coordinate piece entrances. "Cueing-in" gestures indicate when to begin playing and at what tempo. This study investigated how timing information is encoded in musicians' cueing-in gestures. Gesture acceleration patterns were expected to indicate beat position, while gesture periodicity, duration, and peak gesture velocity were expected to indicate tempo. Same-instrument ensembles (e.g., piano-piano) were expected to synchronize more successfully than mixed-instrument ensembles (e...
January 2018: Psychology of Music
Saadia Amasdl, Wiam Smaili, Abdelhafid Natiq, Amale Hassani, Aziza Sbiti, Aomar Agadr, Damien Sanlaville, Abdelaziz Sefiani
Unbalanced translocations involving X and Y chromosomes are rare and associated with a contiguous gene syndrome. The clinical phenotype is heterogeneous including mainly short stature, chondrodysplasia punctata, ichthyosis, hypogonadism, and intellectual disability. Here, we report 2 brothers with peculiar gestalt, short stature, and hearing loss, who harbor an X/Y translocation. Physical examination, brainstem acoustic potential evaluation, bone age, hormonal assessment, and X-ray investigations were performed...
December 16, 2017: Cytogenetic and Genome Research
Silvia Elena Yacarini Paredes, Raquel Assed Bezerra Segato, Leila Daher Moreira, Alcides Moreira, Kranya Victoria Díaz Serrano, Clarissa Teles Rodrigues, Luciana Yamamoto Almeida, Jorge Esquiche León
Hypophosphatemic rickets is a rare genetic disorder involving the regulation of fibroblast growth factor 23 (FGF23), a phosphaturic agent, clinically showing bowing of the legs, short stature and dentoalveolar abscesses. A 7-year-old boy, with previous hypochondroplasia diagnosis, was referred to our pediatric dentistry clinic presenting short stature, bone deformities and sinus tracts at deciduous teeth apex levels not related with trauma, restorations or dental caries. After deciduous teeth extraction, due to root resorption and mobility, light microscopy exhibited typical hypophosphatemic dentin, and micro-computed tomography revealed tubular clefts and porosities throughout the teeth...
November 30, 2017: Head and Neck Pathology
Markus S Hanke, Marius Johann Keel, Inga A Todorski, Johannes Dominik Bastian
INTRODUCTION: The aim of this study was to report the surgical management and to discuss the options for fracture fixation in an adult patient with osteogenesis imperfecta (OI) who sustained a trochanteric femoral fracture after a simple fall from standing position. CASE REPORT: As a result of multiple fractures during childhood, this adult patient with OI presented with a short stature. The radiographs revealed a displaced, intertrochanteric fracture with subtrochanteric extension of the left femur...
May 2017: Journal of Orthopaedic Case Reports
Raymond L Lee
Although quantitative observations of rainbow spectra, colors, and luminances are needed for any comprehensive analysis of rainbow scattering theory, very little such data has been published. But new remote sensing tools now make possible the detailed spectral and colorimetric measurement of natural rainbows, which here are defined as bows seen in sunlit rain or water-drop sprays. To measure these often short-lived phenomena, both multispectral tools (colorimetrically calibrated RGB cameras) and hyperspectral tools (imaging spectrometers) are used to examine the spectral and angular fine structure of natural rainbows...
July 1, 2017: Applied Optics
James A Lock, Philip Laven
We consider transmission scattering of a plane wave by a radially inhomogeneous sphere containing a localized region of refractive index decrease. In ray theory, the boundary conditions on the deflection angle at axial and grazing incidence determine that transmission scattering gives rise to an even number of bows, half of them being relative maximum bows and half being relative minimum bows. For a model refractive index profile, we determine the conditions under which different numbers of bows occur, and we suggest physical mechanisms responsible for producing them...
July 1, 2017: Applied Optics
Uruj Zehra, Cora Bow, Jason Pui Yin Cheung, Henry Pang, William Lu, Dino Samartzis
PURPOSE: The pathogenesis and the clinical impact of disc calcification are not well known. Utilizing ultra-short time-to-echo (UTE) magnetic resonance imaging, the UTE Disc Sign (UDS) (i.e., hypo/hyper-intense disc band) was developed and found to be more significantly related to pain and disability than the conventional T2-weighted (T2W) MRI. It has been hypothesized that the UDS may represent mineralized deposits in the disc. The following study addressed the relationship between disc calcification on plain radiographs to that of the UDS on MRI...
October 9, 2017: European Spine Journal
Duncan Guest, Christopher Kent, James S Adelman
In absolute identification, the extended generalized context model (EGCM; Kent & Lamberts, 2005, 2016) proposes that perceptual processing determines systematic response time (RT) variability; all other models of RT emphasize response selection processes. In the EGCM-RT the bow effect in RTs (longer responses for stimuli in the middle of the range) occurs because these middle stimuli are less isolated, and as perceptual information is accumulated, the evidence supporting a correct response grows more slowly than for stimuli at the ends of the range...
October 2, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
Tessa Maguire, Michael Daffern, Steven J Bowe, Brian McKenna
In the present study, we explored the predictive validity of the Dynamic Appraisal of Situational Aggression (DASA) assessment tool in male (n = 30) and female (n = 30) patients admitted to the acute units of a forensic mental health hospital. We also tested the psychometric properties of the original DASA bands and novel risk bands. The first 60 days of each patient's file was reviewed to identify daily DASA scores and subsequent risk-related nursing interventions and aggressive behaviour within the following 24 hours...
October 2017: International Journal of Mental Health Nursing
Aymeric Reshef, Cyril Riddell, Yves Trousset, Saïd Ladjal, Isabelle Bloch
PURPOSE: This paper investigates the capabilities of a dual-rotation C-arm cone-beam computed tomography (CBCT) framework to improve non-contrast-enhanced low-contrast detection for full volume or volume-of-interest (VOI) brain imaging. METHOD: The idea is to associate two C-arm short-scan rotational acquisitions (spins): one over the full detector field of view (FOV) at low dose, and one collimated to deliver a higher dose to the central densest parts of the head...
September 2017: Medical Physics
Rod J Rohrich, Nathaniel L Villanueva, Kevin H Small, Ronnie A Pezeshk
Many rhinoplasty patients present with a chief complaint of nasal deviation and are unaware of any inherent facial asymmetries; however, recognizing and discussing the interrelation between the deviated nose and facial asymmetry is an important consideration in surgical planning. The objective of this study was to evaluate whether a surgeon's subjective assessment of facial analysis in the setting of nasal deviation correlates with objective anthropometric measurements. In addition, this study sought to further quantify the frequency of facial asymmetry associated with nasal deviation to highlight important anatomical trends for the rhinoplasty surgeon...
September 2017: Plastic and Reconstructive Surgery
Masomeh Mohebbi, Seyed Ali Bashiri, Seyed Farzad Mohammadi, Behnaz Samet, Fariba Ghassemi, Elham Ashrafi, Fatemeh Bazvand
PURPOSE: To assess the safety and outcome of single-piece posterior chamber intraocular lens (PC-IOL) implantation in the ciliary sulcus following posterior capsular rupture during cataract surgery. METHODS: Patients with posterior capsular rupture during cataract surgery with a single-piece acrylic IOL implanted into the ciliary sulcus were studied. Complete ocular examinations were performed after 6 months postoperatively. RESULTS: Twenty-four eyes were included...
July 2017: Journal of Ophthalmic & Vision Research
Henry Pang, Cora Bow, Jason Pui Yin Cheung, Uruj Zehra, Arijitt Borthakur, Jaro Karppinen, Nozomu Inoue, Hai-Qiang Wang, Keith D K Luk, Kenneth M C Cheung, Dino Samartzis
STUDY DESIGN: Cross-sectional. OBJECTIVE: To assess the distribution of the ultra-short time-to-echo (UTE) Disc Sign (UDS).and its association with disc degeneration, other MRI phenotypes, pain and disability profiles. SUMMARY OF BACKGROUND DATA: Disc degeneration has been conventionally assessed by T2-weighted (T2W) signal intensity on MRI; however, its clinical utility has been questionable. UTE MRI assesses short T2 components. The authors have identified a new imaging biomarker on UTE - the UDS...
August 1, 2017: Spine
Rafael Delcourt
Abelisaurid theropods were most abundant in the Gondwana during the Cretaceous Period. Pycnonemosaurus nevesi Kellner & Campos, 2002 was the first abelisaurid dinosaur described from the Bauru Group (Brazil, Upper Cretaceous). Nevertheless, its initial description was based on the comparison of a restricted number of remains with other abelisaurids. In this paper, I present a new description of the morphology of Pycnonemosaurus nevesi, including three new caudal transverse processes and a discussion of several new characteristics based on perspectives derived from recently described abelisauroids...
June 9, 2017: Zootaxa
Martin Hetzl, Julia Winnerl, Luca Francaviglia, Max Kraut, Markus Döblinger, Sonja Matich, Anna Fontcuberta I Morral, Martin Stutzmann
The large surface-to-volume ratio of GaN nanowires implicates sensitivity of the optical and electrical properties of the nanowires to their surroundings. The implementation of an (Al,Ga)N shell with a larger band gap around the GaN nanowire core is a promising geometry to seal the GaN surface. We investigate the luminescence and structural properties of selective area-grown GaN-(Al,Ga)N core-shell nanowires grown on Si and diamond substrates. While the (Al,Ga)N shell allows a suppression of yellow defect luminescence from the GaN core, an overall intensity loss due to Si-related defects at the GaN/(Al,Ga)N interface has been observed in the case of Si substrates...
June 1, 2017: Nanoscale
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