نتایج جستجو برای: rrd

تعداد نتایج: 348  

2017
Norman R. Simon

Masses, temperatures, and absolute luminosities are proposed for a large sample of RRc stars in the globular cluster w Centauri. Our technique uses three observed quantities: period, relative luminosity, and Fourier phase CP31' interpreting them in the light of linear and hydrodynamic pulsation models. The masses we obtain agree with those of the RRd stars in other clusters, and our derived par...

1997
Christine M. Clement Slavek M. Rucinski

New observations of variable stars in the globular cluster M3 reveal that the RR Lyrae variable V79 is a double-mode (RRd) variable with the first overtone mode dominating. In all previous studies, V79 was found to be a fundamental mode (RRab) pulsator with an irregular light curve. This is the first observed mode switch for an RR Lyrae variable and it is direct observational evidence for bluew...

2017
Ghislaine Peene Jean - François Fils David Vanwynsberghe Werner Spileers Peter Stalmans

The precursors of primary Rhegmatogenous retinal detachment (PRRD) are changes in the vitreous body leading to tractional forces on the retina inducing a break through which fluid gains access to the sub retinal space [1]. To achieve successful retinal reattachment, the goal of surgery for RRD is to close all retinal breaks and relieve vitreous traction, which may also reduce the incidence of n...

2016
Anton M. Kolomeyer Joseph N. Martel

A healthy 17-year-old boy reported worsening vision in the right eye since childhood. On presentation, visual acuity was counting fingers in the right eye and 20/20 in the left eye; intraocular pressure was within normal limits. Fovea-involving chronic rhegmatogenous retinal detachment (RRD) with retinal dialysis and subretinal bands was identified in the right eye, while there was macular subr...

Journal: :Neuro-oncology 2023

Abstract BACKGROUND Replication-repair deficiency (RRD) stemming from mismatch repair and polymerase-proofreading gene defects (MMRD/PPD) lead to hypermutant childhood cancers, most frequently brain tumors. While medulloblastoma is reported, the clinical, genomic immune landscape remains unknown. METHODS We analysed genome, methylome, transcriptome (bulk, single-nuclei) immune-microenvironment ...

Journal: :BMC Ophthalmology 2021

Abstract Backgrounds The COVID-19 Pandemic has a great impact on hospitals and patients. 14-day quarantine caused surgery of rhegmatogenous retinal detachment (RRD) postponed. We aimed to explore the risk factors RRD progression in group patients whose was postponed during top-level emergency response COVID-19. Methods A retrospective case series. Medical records all consecutive with diagnosis ...

Journal: :International journal of ophthalmology 2014
Jie Zhang Xiao-Hua Zhu Luo-Sheng Tang

AIM To describe the clinical characters of rhegmatogenous retinal detachment (RRD) associated with massive spontaneous suprachoroidal hemorrhage (SSCH). To evaluate optimal timing and prognosis of pars plana vitrectomy. METHODS A retrospective review of 6 cases (6 eyes) of RRD and massive SSCH among 3772 cases of RRD was conducted. All of 6 patients were treated with twenty-gauge vitrectomy, ...

ژورنال: :مجله علوم پزشکی رازی 0
سیدمهدی مدرس زاده mehdi modarreszadeh iran university of medical sciencesدانشگاه علوم پزشکی ایران آرزو آسترکی arezoo astaraki iran university of medical sciencesدانشگاه علوم پزشکی ایران

زمینه و هدف: علی رغم مطالعات متعدد انجام شده در مورد عوامل ایجاد کننده و درمان جداشدگی رگماتوژن شبکیه، در این زمینه اختلاف نظر وجود دارد. هدف این مطالعه بررسی متون و مقالات اخیر جهت بررسی عوامل مستعد کننده و روش های درمان این اختلال است. روش کار: این مطالعه با مرور مقالات مرتبط در ده سال اخیر (2004-2014) در pubmed انجام شده است. یافته ها: دو عامل اصلی نگهدارنده اتصال شبکیه به لایه های زیرین، پم...

Journal: :Ophthalmology 2013
Chetan Soni Dean P Hainsworth Arghavan Almony

PURPOSE To examine possible differences in clinical outcomes between pars plana vitrectomy (PPV) and scleral buckling (SB) for uncomplicated rhegmatogenous retinal detachment (RRD). DESIGN Meta-analysis. PARTICIPANTS Adult patients with uncomplicated RRD from previously reported randomized controlled trials of PPV and SB. METHODS A comprehensive literature search using the Cochrane Collab...

Journal: :BMJ case reports 2016
Vinod Kumar Raghav Dinesh Ravani Nikhil Kuthirummal Kabiruddin Molla

To cite: Kumar V, Ravani RD, Kuthirummal N, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2016216212 DESCRIPTION A healthy 22-year-old man presented with decreased vision OD for 1 month. There was no history of trauma. Best-corrected visual acuity (BCVA) was 20/400 OD and 20/20 OS. Anterior segment OU was normal. Dilated fundus examination OD (figure 1A) ...

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