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https://www.readbyqxmd.com/read/29049723/a-comparison-of-en-face-optical-coherence-tomography-and-fundus-autofluorescence-in-stargardt-disease
#1
Vivienne C Greenstein, Jason Nunez, Winston Lee, Kaspar Schuerch, Brad Fortune, Stephen H Tsang, Rando Allikmets, Janet R Sparrow, Donald C Hood
Purpose: To compare morphologic changes on en face images derived from wide-field swept-source optical coherence tomography (ssOCT) to hypo- and hyperautofluorescent (hypoAF, hyperAF) areas on short-wavelength autofluorescence (SW-AF), and near-infrared (NIR)-AF in recessive Stargardt disease (STGD1). Methods: Wide-field ssOCT cube scans were obtained from 16 patients (16 eyes). Averaged B-scans and SW-AF images were obtained using Spectralis HRA+OCT. NIR-AF images were obtained from 6 eyes...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28991834/spontaneous-retinal-venous-pulsation-in-unilateral-primary-open-angle-glaucoma-with-low-intraocular-pressure
#2
EunJi Lee, Tae-Woo Kim, Jung-Ah Kim, Ji Ah Kim, Hyunjoong Kim
PURPOSE: The aim of this study was to investigate the presence of spontaneous retinal venous pulsation (SVP) in patients with unilateral primary open-angle glaucoma (POAG) and low intraocular pressure (IOP). MATERIALS AND METHODS: The SVP of 93 POAG patients with unilateral glaucoma and untreated IOP of ≤21 mm Hg was assessed using the movie tool of a confocal scanning laser ophthalmoscope (Spectralis HRA; Heidelberg Engineering). The frequency of SVP was compared between the glaucomatous and fellow eyes...
October 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28988184/influence-of-frailty-in-older-patients-undergoing-emergency-laparotomy-a-uk-based-observational-study
#3
Kat L Parmar, Lyndsay Pearce, Ian Farrell, Jonathan Hewitt, Susan Moug
INTRODUCTION: The National Emergency Laparotomy Audit (NELA) has reported that older patients (≥65 years) form a large percentage of emergency high-risk cases with increased postoperative morbidity and mortality. With the population continuing to age rapidly, it is clear that a greater understanding of the factors affecting surgical outcomes in older patients is required. Frailty is a relatively new concept taking into account a variety of factors that increase an individual's vulnerability to increased dependency and death...
October 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28987619/genetic-diversity-phylogroup-distribution-and-virulence-gene-profile-of-pks-positive-escherichia-coli-colonizing-human-intestinal-polyps
#4
Meysam Sarshar, Daniela Scribano, Massimiliano Marazzato, Cecilia Ambrosi, Maria Rita Aprea, Marta Aleandri, Annamaria Pronio, Catia Longhi, Mauro Nicoletti, Carlo Zagaglia, Anna Teresa Palamara, Maria Pia Conte
Some Escherichia coli strains of phylogroup B2 harbor a (pks) pathogenicity island that encodes a polyketide-peptide genotoxin called colibactin. It causes DNA double-strand breaks and megalocytosis in eukaryotic cells and it may contribute to cancer development. Study of bacterial community that colonizes the adenomatous polyp lesion, defined as precancerous lesions, could be helpful to assess if such pathogenic bacteria possess a role in the polyp progression to cancer. In this cross-sectional study, a total of 1500 E...
October 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28973076/effect-of-dietary-supplementation-with-lutein-zeaxanthin-and-%C3%AF-3-on-macular-pigment-a-randomized-clinical-trial
#5
Jean-François Korobelnik, Marie-Bénédicte Rougier, Marie-Noëlle Delyfer, Alain Bron, Bénédicte M J Merle, Hélène Savel, Geneviève Chêne, Cécile Delcourt, Catherine Creuzot-Garcher
Importance: Nutritional uptake of lutein, zeaxanthin, and ω-3 polyunsaturated fatty acids may increase macular pigment optical density (MPOD) and thereby protect against the development of age-related macular degeneration (AMD). Objectives: To estimate the efficiency of dietary supplementation containing lutein, zeaxanthin, ω-3 polyunsaturated fatty acids, and vitamins to increase the density of macular pigment in first-generation offspring of parents with neovascular AMD...
September 28, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28953633/risk-factors-for-infection-by-oncogenic-human-papillomaviruses-in-hiv-positive-msm-patients-in-the-art-era-2010-2016
#6
Carmen Hidalgo-Tenorio, Concepción Gil-Anguita, Jessica Ramírez-Taboada, Javier Esquivias, Miguel A López-Ruz, Omar Mohamed Balgahata, Rosario Javier-Martinez, Juan Pasquau
Squamous cell carcinoma of anus (SCCA) is one of the most frequent non-AIDS-defining diseases in HIV patients, mainly in men who have sex with men (MSM), and it is associated with human papillomavirus (HPV) infection.To determine the prevalence of high-risk HPV (HR-HPV) genotypes, premalignant lesions (HSIL) and SCCA in a cohort of HIV-positive MSM; to study the distribution of HPV genotypes according to anal histology results; and to analyze risk factors for this infection.This prospective single-center study was conducted between May 2010 and September 2016...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28942521/imaging-of-tangential-traction-types-in-lamellar-macular-holes
#7
Alessandra Acquistapace, Matteo Giuseppe Cereda, Mario Cigada, Giovanni Staurenghi, Ferdinando Bottoni
PURPOSE: To determine the best imaging procedure for the definition of tangential tractions generated by epiretinal membranes in lamellar macular holes. METHODS: Inclusion criteria were a diagnosis of lamellar macular hole with tractional epiretinal membranes based upon fundus autofluorescence (FAF), and spectral-domain optical coherence tomography (SD-OCT) imaging (HRA + OCT Spectralis, Heidelberg Engineering, Heidelberg, Germany). Tangential tractions were evaluated with infrared reflectance (IR; 820 nm) and OCT en face (193 B-scans, 30 × 20°pattern size, 31 μm between two consecutive B-scans)...
September 23, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28934961/area-asymmetry-of-heart-rate-variability-signal
#8
Chang Yan, Peng Li, Lizhen Ji, Lianke Yao, Chandan Karmakar, Changchun Liu
BACKGROUND: Heart rate fluctuates beat-by-beat asymmetrically which is known as heart rate asymmetry (HRA). It is challenging to assess HRA robustly based on short-term heartbeat interval series. METHOD: An area index (AI) was developed that combines the distance and phase angle information of points in the Poincaré plot. To test its performance, the AI was used to classify subjects with: (i) arrhythmia, and (ii) congestive heart failure, from the corresponding healthy controls...
September 21, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28927878/risk-of-metachronous-high-risk-adenomas-and-large-serrated-polyps-in-individuals-with-serrated-polyps-on-index-colonoscopy-data-from-the-new-hampshire-colonoscopy-registry
#9
Joseph C Anderson, Lynn F Butterly, Christina M Robinson, Julia E Weiss, Christopher Amos, Amitabh Srivastava
BACKGROUND & AIMS: Surveillance guidelines for serrated polyps (SPs) are based on limited data on longitudinal outcomes of patients. We used the New Hampshire Colonoscopy Registry to evaluate risk of clinically important metachronous lesions associated with SPs, detected during index colonoscopies. METHODS: We collected data from a population-based colonoscopy registry that has been collecting and analyzing data on colonoscopies across the state of New Hampshire since 2004, including rates of adenoma and serrated polyp detection...
September 16, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28926406/risk-factors-for-anal-hsil-in-hiv-positive-msm-is-targeted-screening-possible
#10
Matthijs L Siegenbeek van Heukelom, Elske Marra, Henry J C de Vries, Maarten F Schim van der Loeff, Jan M Prins
OBJECTIVE: HIV-positive men-who-have-sex-with-men (MSM) are at increased risk for developing anal squamous cell carcinoma (aSCC). Detection of precursor lesions of anal cancer (anal high-grade squamous intraepithelial lesions; HSIL) is cumbersome and expensive. Our objective was to identify potential risk factors for anal HSIL in HIV-positive MSM to develop more stringent screening criteria. DESIGN: We studied a cohort of MSM screened by high-resolution anoscopy (HRA) at three HIV clinics in Amsterdam, the Netherlands...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28922545/neural-responses-to-linguistic-stimuli-in-children-with-and-without-autism-spectrum-disorder
#11
Kayla H Finch, Helen Tager-Flusberg, Charles A Nelson
Atypical neural responses to language have been found in toddlers with autism spectrum disorder (ASD) and in their unaffected siblings. However, given that language difficulties are often seen in these children, it is difficult to interpret whether these neural differences are a result of the diagnosis of ASD or impairments in their language abilities. In this current study, we recorded event-related potentials (ERPs) from four groups of 36-month-olds: low-risk control (LRC), high-risk for ASD defined as having an older sibling with ASD (HRA) but who do not have ASD or milder autism-like symptoms (HRA-Typ), HRA children who do not have ASD but exhibit milder autism-like symptoms (HRA-Atyp), and HRA children diagnosed with ASD (ASD)...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28914796/enhanced-interface-structure-and-properties-of-titanium-carbonitride-based-cermets-with-the-extra-solid-phase-reaction
#12
Nan Lin, Yuehui He, Xiyue Kang
In this paper, the influence of the extra solid phase reaction on the interface structure and mechanical properties of titanium carbonitride-based cermets were investigated. The extra solid phase reaction in the preparation process of cermets could induce the formation of a core/rim/binder interface with the coherent structure and reinforce the interface bonding strength in cermets. The existence of a coherent structure interface can inhibit crack spread and improve the toughness and abrasion resistance of titanium carbonitride-based cermets significantly...
September 15, 2017: Materials
https://www.readbyqxmd.com/read/28914335/regulatory-experience-of-tops-an-internet-based-system-to-prevent-healthy-subjects-from-over-volunteering-for-uk-clinical-trials
#13
C Allen, G Francis, J Martin, M Boyce
PURPOSE: The aim was to review the use of The Over-volunteering Prevention System (TOPS) since the HRA began hosting it in 2013, and the Medicines and Healthcare products Regulatory Agency (MHRA) experience of monitoring its use by UK clinical research units. METHODS: The HRA searched the TOPS database for the number, type and location of units and the number of entries. The MHRA inspectors reviewed their findings from routine inspections. RESULTS: Twenty-two additional UK units registered to use TOPS during 2013-2016, making a total of 84 units since TOPS was established in 2002...
September 15, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28871029/protocol-for-a-qualitative-study-exploring-perspectives-on-the-international-classification-of-diseases-11th-revision-using-lived-experience-to-improve-mental-health-diagnosis-in-nhs-england-include-study
#14
Corinna Hackmann, Amanda Green, Caitlin Notley, Amorette Perkins, Geoffrey M Reed, Joseph Ridler, Jon Wilson, Tom Shakespeare
INTRODUCTION: Developed in dialogue with WHO, this research aims to incorporate lived experience and views in the refinement of the International Classification of Diseases Mental and Behavioural Disorders 11th Revision (ICD-11). The validity and clinical utility of psychiatric diagnostic systems has been questioned by both service users and clinicians, as not all aspects reflect their lived experience or are user friendly. This is critical as evidence suggests that diagnosis can impact service user experience, identity, service use and outcomes...
September 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/28862698/prognostic-implications-of-abnormalities-of-chromosome-13-and-the-presence-of-multiple-cytogenetic-high-risk-abnormalities-in-newly-diagnosed-multiple-myeloma
#15
M Binder, S V Rajkumar, R P Ketterling, P T Greipp, A Dispenzieri, M Q Lacy, M A Gertz, F K Buadi, S R Hayman, Y L Hwa, S R Zeldenrust, J A Lust, S J Russell, N Leung, P Kapoor, R S Go, W I Gonsalves, R A Kyle, S K Kumar
Fluorescence in situ hybridization evaluation is essential for initial risk stratification in multiple myeloma. While the presence of specific cytogenetic high-risk abnormalities (HRA) is known to confer a poor prognosis, less is known about the cumulative effect of multiple HRA. We studied 1181 patients with newly diagnosed multiple myeloma who received novel agents as first-line therapy. High-risk abnormalities were defined as t(4;14), t(14;16), t(14;20) and del(17p). There were 884 patients (75%) without any HRA and 297 patients (25%) with HRA, including 262 (22%) with one HRA and 35 (3%) with two HRA...
September 1, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28836808/social-cognitive-predictors-of-vocational-outcomes-in-transition-youth-with-epilepsy-application-of-social-cognitive-career-theory
#16
Connie Sung, Annemarie Connor
OBJECTIVE: This study examined the utility of social-cognitive career theory (SCCT; Lent, Brown, & Hackett, 1994) as a framework to investigate career self-efficacy, outcome expectations, goals, and contextual supports and barriers as predictors of choice actions among transition-age individuals with epilepsy. Moreover, these SCCT constructs are offered as an operational definition of work participation in this population. METHOD: Using a quantitative descriptive research design and hierarchical regression analysis (HRA), 90 transition-age individuals with epilepsy, age 18-25, were recruited from affiliates of the Epilepsy Foundation and invited to complete an online survey comprised of a series of self-report social-cognitive measures...
August 2017: Rehabilitation Psychology
https://www.readbyqxmd.com/read/28832738/multimodal-assessment-of-patients-with-chronic-central-serous-chorioretinopathy
#17
COMPARATIVE STUDY
Karlos Ítalo Souza Viana, Pedro M Souza Leão, Letícia Fernandes, Rubens Siqueira, Jefferson Ribeiro, Rodrigo Jorge
PURPOSE: To examine differences between fluorescein angiography (FA) and indocyanine green angiography (ICG) findings in patients with chronic central serous chorioretinopathy (CSC), comparing these with optical coherence tomography (OCT) findings. METHODS: Ten consecutive patients with chronic CSC (19 eyes; 7 men; mean age, 50.7 ± 8.4 years) underwent multimodal evaluation that included FA, ICG, and OCT (Spectralis HRA-OCT, Heidelberg Engineering, Heidelberg, Germany)...
June 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28832670/peripapillary-retinal-splitting-visualized-on-oct-in-glaucoma-and-glaucoma-suspect-patients
#18
Dilraj S Grewal, Daniel J Merlau, Pushpanjali Giri, Marion R Munk, Amani A Fawzi, Lee M Jampol, Angelo P Tanna
PURPOSE: To identify the risk factors for development of peripapillary retinal splitting (schisis) in patients with glaucoma or suspicion of glaucoma. SETTING: Glaucoma Clinic, Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, IL. METHODS: In this institutional cross-sectional study, 495 patients (990 eyes) who had undergone spectral-domain optical coherence tomography (OCT Spectralis HRA-OCT, Heidelberg Engineering) optic nerve head (ONH) imaging and did not have identifiable optic nerve pits, pseudopits or coloboma were included...
2017: PloS One
https://www.readbyqxmd.com/read/28780559/doctor-referral-of-overweight-people-to-a-low-energy-treatment-droplet-in-primary-care-using-total-diet-replacement-products-a-protocol-for-a-randomised-controlled-trial
#19
Susan A Jebb, Nerys M Astbury, Sarah Tearne, Alecia Nickless, Paul Aveyard
INTRODUCTION: The global prevalence of obesity has risen significantly in recent decades. There is a pressing need to identify effective interventions to treat established obesity that can be delivered at scale. The aim of the Doctor Referral of Overweight People to a Low-Energy Treatment (DROPLET) study is to determine the clinical effectiveness, feasibility and acceptability of referral to a low-energy total diet replacement programme compared with usual weight management interventions in primary care...
August 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28765756/wavefront-direction-and-cycle-length-affect-left-atrial-electrogram-amplitude
#20
Kazuki Iso, Ichiro Watanabe, Rikitake Kogawa, Yasuo Okumura, Koichi Nagashima, Keiko Takahashi, Ryuta Watanabe, Masaru Arai, Kimie Ohkubo, Toshiko Nakai, Atsushi Hirayama, Mizuki Nikaido
BACKGROUND: The relationship between atrial electrogram (EGM) characteristics in atrial fibrillation (AF) and those in sinus rhythm (SR) are generally unknown. The activation rate and direction may affect EGM characteristics. We examined characteristics of left atrial (LA) EGMs obtained during pacing from different sites. METHODS: The study included 10 patients undergoing pulmonary vein isolation for AF. Atrial EGMs were recorded from a 64-pole basket catheter placed in the LA, and bipolar EGM amplitudes from the distal electrode pair (1-2) and proximal electrode pair (6-7) from 8 splines were averaged...
August 2017: Journal of Arrhythmia
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