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https://www.readbyqxmd.com/read/28441067/anterior-segment-optical-coherence-tomography-angiography-for-identification-of-iris-vasculature-and-staging-of-iris-neovascularization-a-pilot-study
#1
Philipp K Roberts, Debra A Goldstein, Amani A Fawzi
Purpose/Aim of the study: To assess the ability of optical coherence tomographic angiography (OCTA) to visualize the normal iris vasculature as well as neovascularization of the iris (NVI). MATERIALS AND METHODS: Study participants with healthy eyes, patients at risk of NVI development and patients with active or regressed NVI were consecutively included in this cross-sectional observational study. Imaging was performed using a commercially available OCTA system (RTVue- XR Avanti, Optovue Inc...
April 25, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28440260/immortal-ozurdex-a-10-month-follow-up-of-an-intralenticular-implant
#2
B Poornachandra, Vinod B M Kumar, Chaitra Jayadev, Subashchandra H Dorelli, Naresh Kumar Yadav, Rohit Shetty
A 78-year-old male who had received a dexamethasone implant (Ozurdex, Allergan, Inc., Irvine, CA, USA) 15 days back for recalcitrant diabetic macular edema in the left eye came to us for a second opinion. On examination, his corrected distance visual acuity was 20/20 in the right eye and 20/40 in the left eye. Early cataractous changes were present in both eyes. The intraocular pressure was within normal limits. The Ozurdex implant was seen lodged in the posterior cortex of the crystalline lens in the left eye, confirmed on anterior segment optical coherence tomography (OCT) and ultrasound biomicroscopy...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28439321/embolization-of-a-bronchial-artery-aneurysm-in-a-chronic-obstructive-pulmonary-disease-copd-patient-with-non-massive-hemoptysis
#3
Ignazio Salamone, Marco Cavallaro, Carmela Visalli, Mariano Velo, Ugo Barbaro, Karol Galletta, Filippo Andò
BACKGROUND: Bronchial artery aneurysm (BAA) is a rare condition with a reported prevalence of less than 1% of all selective bronchial arterial angiograms. Despite its low incidence, BAA represents a potential cause of hemoptysis. CASE REPORT: We describe the case of a 63-year-old man suffering from chronic obstructive pulmonary disease (COPD), who presented with non-massive hemoptysis. CT angiography revealed a single bronchial artery aneurysm of 9 mm in diameter, abutting the esophageal wall...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28439169/the-cortical-boundary-line-as-a-guide-for-incisor-re-positioning-with-anterior-segmental-osteotomies
#4
Abraham Vinod Korath, Ratna Padmanabhan, Anantanarayanan Parameswaran
Anterior alveolar anatomical constraints involving presurgical orthodontic incisor repositioning are often unrecognized and overlooked during orthodontic-surgical treatment planning. A clear discrimination of this cortical limitation is invaluable during the planning stage as it permits the consideration of alternative approaches like the anterior maxillary osteotomy for effecting the required incisor movement. A simple reference line termed the "Cortical Boundary Line" is introduced to facilitate the clinical translation of this information and through suitable case illustrations, the construction of the reference line using the conventional lateral cephalometric radiograph and its usefulness as an adjunct in aiding decisions on orthodontic incisor decompensation is highlighted...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439168/ocular-injuries-in-patients-of-zygomatico-complex-zmc-fractures
#5
Altaf Hussain Malik, Aijaz A Shah, Irshad Ahmad, Babar Ai Shah
PURPOSE: Mid face injuries commonly destroy the integrity of the orbital skeleton, and are frequently complicated by injury to the eye, ranging between 2.7 and 90.6 % as reported in literature. The eye injuries range from simple subconjunctival haemorrhage to globe rupture. The paper aims to study the types of ocular injuries in patients with ZMC fractures. PATIENTS AND METHODS: A study of 67 patients, who had sustained facial trauma sufficient to lead to a facial bone fracture, was undertaken in the department of Oral and Maxillofacial Surgery, Govt Dental College, Srinagar from 2008 to 2014 and the patients received a comprehensive examination by an ophthalmologist within 1 week of injury...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28438653/the-fate-of-side-branches-covered-by-flow-diverters-results-from-140-patients
#6
P Bhogal, O Ganslandt, H Bäzner, H Henkes, M Aguilar Perez
BACKGROUND: Flow diverter stents (FDS) are a recognised treatment option for intracranial aneurysms. There remain on-going concerns regarding the safety of FDS especially when it comes to the fate of covered side branches. We sought to report on the patency of side branches covered by FDS. METHODS: We retrospectively reviewed our database of prospectively collected information for all patients treated with FDS for an unruptured saccular aneurysm of the clinoid, ophthalmic, and terminating segments of the internal carotid artery between September 2009 and July 2016...
April 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28437444/transcriptional-bursting-in-drosophila-development-stochastic-dynamics-of-eve-stripe-2-expression
#7
David M Holloway, Alexander V Spirov
Anterior-posterior (AP) body segmentation of the fruit fly (Drosophila) is first seen in the 7-stripe spatial expression patterns of the pair-rule genes, which regulate downstream genes determining specific segment identities. Regulation of pair-rule expression has been extensively studied for the even-skipped (eve) gene. Recent live imaging, of a reporter for the 2nd eve stripe, has demonstrated the stochastic nature of this process, with 'bursts' in the number of RNA transcripts being made over time. We developed a stochastic model of the spatial and temporal expression of eve stripe 2 (binding by transcriptional activators (Bicoid and Hunchback proteins) and repressors (Giant and Krüppel proteins), transcriptional initiation and termination; with all rate parameters constrained by features of the experimental data) in order to analyze the noisy experimental time series and test hypotheses for how eve transcription is regulated...
2017: PloS One
https://www.readbyqxmd.com/read/28437357/the-effect-of-concomitant-rib-deformity-in-congenital-scoliosis-on-spinal-curve-correction-after-segmental-pedicle-screw-instrumentation
#8
Ebrahim Ameri, Daniel F Fouladi, Mir Bahram Safari, Hossein Vahid Tari, Hassan Ghandhari
STUDY DESIGN: A single-center, prospective study. OBJECTIVE: To investigate the effect of rib anomaly on surgical curve correction outcome in congenital scoliosis. SUMMARY OF BACKGROUND DATA: The presence of rib anomalies may complicate surgical correction of congenital scoliosis. The outcome of surgical correction, however, has not been documented in scoliotic patients with and without rib deformity. METHODS: Percent Cobb angle decrease (CAD) after operation was calculated in 94 patients with congenital scoliosis...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437335/do-lordotic-cages-provide-better-segmental-lordosis-versus-nonlordotic-cages-in-lateral-lumbar-interbody-fusion-llif
#9
Jonathan N Sembrano, Ryan D Horazdovsky, Amit K Sharma, Sharon C Yson, Edward R G Santos, David W Polly
STUDY DESIGN: A retrospective comparative radiographic review. OBJECTIVE: To evaluate the radiographic changes brought about by lordotic and nonlordotic cages on segmental and regional lumbar sagittal alignment and disk height in lateral lumbar interbody fusion (LLIF). SUMMARY OF BACKGROUND DATA: The effects of cage design on operative level segmental lordosis in posterior interbody fusion procedures have been reported. However, there are no studies comparing the effect of sagittal implant geometry in LLIF...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437274/axial-length-and-anterior-segment-alterations-in-former-preterm-infants-and-full-term-neonates-analyzed-with-scheimpflug-imaging
#10
Achim Fieß, Ruth Kölb-Keerl, Markus Knuf, Bernd Kirchhof, Christiane Blecha, Isabel Oberacher-Velten, Philipp S Muether, Jacqueline Bauer
PURPOSE: To compare the axial length and anterior segment alterations in preterm infants with and without retinopathy of prematurity with those of full-term infants. METHODS: The Wiesbaden Prematurity Study investigated 503 participants of former gestational age ≤32 weeks and gestational age ≥37 weeks now being aged 4 to 10 years. This study included 485 participants in the prospective controlled cross-sectional, hospital-based study with successful Pentacam Scheimpflug imaging...
April 21, 2017: Cornea
https://www.readbyqxmd.com/read/28437237/proteomics-in-hypothermia-as-adjunctive-therapy-in-patients-with-st-segment-elevation-myocardial-infarction-a-chill-mi-substudy
#11
Moman A Mohammad, Marco Noc, Irene Lang, Michael Holzer, Peter Clemmensen, Ulf Jensen, Bernhard Metzler, David Erlinge
Cardiovascular and inflammatory biomarkers in therapeutic hypothermia have been studied in cardiac arrest, but data on patients with ST-segment elevation myocardial infarction (STEMI) treated with therapeutic hypothermia are currently unavailable. A multiplex proximity extension assay allowed us to measure 157 cardiovascular disease (CVD) and inflammatory disease-related biomarkers in patients from the international, multicenter, and randomized trial; CHILL-myocardial infarction (MI) and to explore the associations of cardiovascular and inflammatory biomarkers...
March 2, 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/28435913/a-prospective-clinical-study-comparing-mi-tlif-with-unilateral-versus-bilateral-transpedicular-fixation-in-low-grade-lumbar-spondylolisthesis
#12
José-Antonio Soriano-Sánchez, Javier Quillo-Olvera, Sergio Soriano-Solis, Miroslava-Elizabeth Soriano-Lopez, Claudia-Angélica Covarrubias-Rosas, Javier Quillo-Reséndiz, Carlos-Francisco Gutiérrez-Partida, Manuel Rodríguez-García
BACKGROUND: Minimally invasive transforaminal lumbar interbody fusion (MI-TLIF) has become one of the standard techniques for approaching ipsilateral decompression, anterior column fusion, and posterior stabilization. This procedure is usually accompanied by the placement of bilateral transpedicular screws in the corresponding segment. The purpose of this study was to evaluate the clinical efficacy of unilateral screw fixation compared with bilateral fixation in patients diagnosed with low-grade symptomatic lumbar spondylolisthesis who underwent an MI-TLIF technique...
March 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28435210/incidence-of-interface-fluid-syndrome-after-laser-in-situ-keratomileusis-in-egyptian-patients
#13
Amr A Gab-Alla
PURPOSE: To determine the incidence of interface fluid syndrome (IFS) secondary to steroid-induced elevation of intraocular pressure (IOP) following laser in situ keratomileusis (LASIK) in myopic Egyptian patients. METHODS: This retrospective case series study was conducted at El-Gowhara Private Eye Center. The medical records of 1,807 patients (3,489 eyes), who underwent LASIK to correct myopia from April 2012 to December 2015 were included. The patients were operated on and reviewed by one surgeon (AAG) for IFS after LASIK associated with elevation of IOP (as compared to preoperative values)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28434567/red-reflex-screening-highly-sensitive-for-anterior-segment-abnormalities
#14
Carlo Cagini
No abstract text is available yet for this article.
May 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28434534/comparative-analysis-of-trabecular-bone-structure-and-orientation-in-south-african-hominin-tali
#15
Anne Su, Kristian J Carlson
Tali of several hominin taxa are preserved in the fossil record and studies of the external morphology of these often show a mosaic of human-like and ape-like features. This has contributed to a growing recognition of variability characterizing locomotor kinematics of Australopithecus. In contrast, locomotor kinematics of another Plio-Pleistocene hominin, Paranthropus, are substantially less well-documented, in part, because of the paucity of postcranial fossils securely attributed to the genus. Since the talus transmits locomotor-based loads through the ankle and its internal structure is hypothesized to reflect accommodation to such loads, it is a cornerstone structure for reconstructing locomotor kinematics...
May 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28434071/repeatability-and-agreement-of-central-corneal-thickness-measurement-with-non-contact-methods-a-comparative-study
#16
Tarannum Mansoori, Nagalla Balakrishna
PURPOSE: To compare the central corneal thickness (CCT) measurements and reliability of RTVue XR-100 anterior segment optical coherence tomography (AS-OCT), AL-scan optical biometer and Schwind Sirius anterior segment analysis system. METHODS: The CCT was measured in one hundred and twenty-seven eyes of 127 healthy subjects with AS-OCT, AL-scan and Sirius system. Mean CCT was compared among the instruments, and the level of agreement was assessed using Bland-Altman plots...
April 22, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28432671/investigation-of-the-physical-effects-of-respiratory-motion-compensation-in-a-large-population-of-patients-undergoing-tc-99m-cardiac-perfusion-spect-ct-stress-imaging
#17
P Hendrik Pretorius, Karen L Johnson, Seth T Dahlberg, Michael A King
BACKGROUND: Respiratory motion can deteriorate image fidelity in cardiac perfusion SPECT. We determined the extent of respiratory motion, assessed its impact on image fidelity, and investigated the existence of gender differences, thereby examining the influence of respiratory motion in a large population of patients. METHODS: One thousand one hundred and three SPECT/CT patients underwent visual tracking of markers on their anterior surface during stress acquisition to track respiratory motion...
April 21, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28432218/dynamics-of-growth-zone-patterning-in-the-milkweed-bug-oncopeltus-fasciatus
#18
Tzach Auman, Barbara M I Vreede, Aryeh Weiss, Susan D Hester, Terri A Williams, Lisa M Nagy, Ariel D Chipman
We describe the dynamic process of abdominal segment generation in the milkweed bug Oncopeltus fasciatus We present detailed morphological measurements of the growing germband throughout segmentation. Our data are complemented by cell division profiles and expression patterns of key genes, including invected and even-skipped as markers for different stages of segment formation. We describe morphological and mechanistic changes in the growth zone and in nascent segments during generation of individual segments and throughout segmentation, and examine the relative contribution of newly formed versus existing tissue to segment formation...
April 21, 2017: Development
https://www.readbyqxmd.com/read/28432110/anterior-but-not-posterior-choroid-changed-before-and-during-valsalva-manoeuvre-in-healthy-chinese-a-ubm-and-ss-oct-study
#19
Fei Li, Kai Gao, Xingyi Li, Shida Chen, Wenbin Huang, Xiulan Zhang
PURPOSE: To determine if the anterior choroid is involved in ocular change during the Valsalva manoeuvre (VM). MATERIALS AND METHODS: Fifty-three healthy volunteers aged 18-65 years with normal visual field test results and no history of intraocular pressure (IOP) exceeding 21 mm Hg were recruited. Anterior and posterior choroidal changes before and during VM were recorded by ultrasound microscope and swept-source optical coherence tomography, respectively. Parameters of the anterior segment included ciliary body thickness (CBT0), thickness of the choroid at a distance of 4 mm from the root of the iris (CT4), anterior placement of the ciliary body (APCB) and trabecular-ciliary angle (TCA)...
April 21, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28431861/cardiac-computed-tomography-derived-myocardial-mass-at-risk-using-the-voronoi-based-segmentation-algorithm-a-histological-validation-study
#20
Seiko Ide, Satoru Sumitsuji, Osamu Yamaguchi, Yasushi Sakata
BACKGROUND: Myocardial mass at risk (MMAR) is an important predictor of adverse cardiac events in patients with ischemic heart disease. This study aims to validate the accuracy of MMAR calculated from cardiac computed tomography (CCT) data using the Voronoi-based segmentation algorithm in comparison with actual MMAR measured on ex-vivo swine hearts prepared by injecting a dye into the coronary arteries. METHODS: Fifteen extracted swine hearts had India ink injected into one of the major coronary arteries...
April 18, 2017: Journal of Cardiovascular Computed Tomography
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