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https://www.readbyqxmd.com/read/28421343/antiplatelets-and-anticoagulants-in-vitreoretinal-surgery-with-a-special-emphasis-on-novel-anticoagulants-a-national-survey-and-review
#1
REVIEW
Rupa Patel, Stephen Charles, Assad Jalil
PURPOSE: To survey current practice and opinion regarding the cessation of antiplatelet and anticoagulant agents prior to vitreoretinal surgery, with special emphasis on novel anticoagulants, and to provide an overview of current literature. METHODS: An online survey was sent to 167 members of the British and Eire Association of Vitreoretinal Surgeons (BEAVRS). A literature search and analysis was conducted on studies that reviewed the bleeding risk of antiplatelet and anticoagulant agents...
April 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28325286/inclusion-of-the-woodchuck-hepatitis-virus-posttranscriptional-regulatory-element-enhances-aav2-driven-transduction-of-mouse-and-human-retina
#2
Maria I Patrício, Alun R Barnard, Harry O Orlans, Michelle E McClements, Robert E MacLaren
The woodchuck hepatitis virus posttranscriptional regulatory element (WPRE) has been included in the transgene cassette of adeno-associated virus (AAV) in several gene therapy clinical trials, including those for inherited retinal diseases. However, the extent to which WPRE increases transgene expression in the retina is still unclear. To address this question, AAV2 vectors containing a reporter gene with and without WPRE were initially compared in vitro and subsequently in vivo by subretinal delivery in mice...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28160248/gas-tamponade-for-retinectomy-in-pvr-related-retinal-detachments-a-retrospective-study
#3
Vasileios T Papastavrou, Irini Chatziralli, Dominic McHugh
INTRODUCTION: The purpose of the study was to evaluate the anatomical and functional results in patients with proliferative vitreoretinopathy (PVR) treated with retinectomy and perfluoro-octane gas (C3F8) as a tamponade agent. METHODS: 12 patients with inferior and anterior complicated PVR-related retinal detachment, who were treated with retinectomy, where C3F8 was used as the tamponade agent were examined. Primary outcome was the anatomical success, while visual acuity, existence of an epiretinal membrane (ERM) and intraocular pressure (IOP) postoperatively were secondary outcomes...
February 3, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28147403/intraocular-dexamethasone-implant-as-adjunct-to-silicone-oil-tamponade-for-proliferative-vitreoretinopathy
#4
M Sherif, T J Wolfensberger
Background Proliferative vitreoretinopathy (PVR) occurs in 10 % of patients with retinal detachment and is characterized by excessive epi-, sub- or intraretinal contraction. Corticosteroids have been shown to counter this contraction. Patients and Methods Retrospective review of 5 patients (3 females, 2 males) with recurrent retinal detachment with stage C PVR. The mean age was 61.2 ± 20.5 years and myopia > - 5.0 dioptres was present in 3 eyes. Patients were treated with 23 g vitrectomy, retinectomy and endolaser, dexamethasone (Ozurdex®) injection under perfluorocarbone and 5500 cs silicone oil tamponade...
April 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28092313/surgical-management-of-tractional-retinoschisis-associated-with-vitreous-hemorrhage-in-retinopathy-of-prematurity
#5
Bozho Todorich, Aristomenis Thanos, Yoshihiro Yonekawa, Edward Korot, Michael T Trese, Kimberly A Drenser, Antonio Capone
PURPOSE: The tractional retinoschisis is a poorly understood, rare, and likely underappreciated entity in retinopathy of prematurity. The purpose of this article is to describe clinical findings and surgical management of tractional retinoschisis in retinopathy of prematurity, masquerading as Stage 4 retinopathy of prematurity retinal detachment. METHODS: A retrospective review of a single case with literature review and case discussion. RESULTS: In this report, we describe a child with retinopathy of prematurity and tractional schisis, who initially presented with vitreous hemorrhage and was effectively managed by vitrectomy and inner wall retinectomy...
January 13, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27828913/long-term-results-of-total-retinectomy-in-cases-with-advanced-proliferative-vitreoretinopathy
#6
Murat Karacorlu, Isil Sayman Muslubas, Mumin Hocaoglu, Serra Arf, Mehmet Giray Ersoz
PURPOSE: To evaluate the long-term results of total retinectomy in patients with rhegmatogenous retinal detachment and severe proliferative vitreoretinopathy. METHODS: Seven eyes of 7 patients had pars plana vitrectomy, with or without pars plana lensectomy, and total retinectomy, with or without silicone oil tamponade, for the management of rhegmatogenous retinal detachment and proliferative vitreoretinopathy (Grade D1-3) after previous complex vitreoretinal surgery procedures...
November 8, 2016: Retina
https://www.readbyqxmd.com/read/27769586/clinical-and-ultrastructural-studies-of-epiretinal-pigmentary-deposits-after-retinectomy-with-silicone-oil
#7
Mira M Sachdeva, Frederick A Jakobiec, Anna M Stagner, Athanasios Papakostas, Dean Eliott
PURPOSE: Large relaxing retinectomies have become increasingly used in the repair of retinal detachment related to proliferative vitreoretinopathy (PVR). Retinectomies expose the retinal pigment epithelium (RPE) to the vitreous cavity; the direct effects of silicone oil on the RPE are only beginning to be understood. DESIGN: Retrospective case series. PARTICIPANTS: Twelve patients noted to develop pigmented epiretinal deposits at regularly scheduled follow-up visits after repair of complex retinal detachments using silicone oil tamponade and retinectomy...
October 18, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27479579/-proliferative-vitreoretinopathy-therapeutic-strategies
#8
F Schaub, P Enders, S Fauser
BACKGROUND: Development of proliferative vitreoretinopathy (PVR) is one of the most important complications of vitreoretinal surgery. Reaching the decision to treat and surgical treatment itself are both challenging. MATERIALS AND METHODS: Our own data and a review of the literature in PubMed are summarised. RESULTS: Pharmacological approaches to the prevention and treatment of proliferative vitreoretinopathy have been limited to concepts that have been investigated in preclinical and a few clinical studies...
September 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27022477/radial-retinotomies-with-endodiathermy-for-severe-proliferative-vitreoretinopathy-short-term-results
#9
Zhaoxin Jiang, Suo Qiu, Bingsheng Lou, Miaoli Lin, Junlian Tan, Xiaofeng Lin
Purpose. Retinal redetachment of silicone oil-filled eyes continues to be a frustrating condition that typically requires retinectomy. We proposed radial retinotomy as a potentially less invasive surgery. Here, we preliminarily explored its feasibility, efficacy, and safety. Methods. Totally 9 eyes of 9 consecutive patients were included in a prospective noncomparative trial. A series of retinotomies were created by endodiathermy in a radial pattern to relax the foreshortened retina. The eye was refilled with fresh silicone oil...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27018809/incidence-of-lens-touch-during-pars-plana-vitrectomy-and-outcomes-from-subsequent-cataract-surgery
#10
Zine Elhousseini, Edward Lee, Tom H Williamson
PURPOSE: To determine the incidence of lens touch during pars plana vitrectomy (PPV) and evaluate cataract surgery complications after lens touch. METHODS: One thousand three hundred and ninety nine phakic patients who underwent PPV during the period from 2001 to 2013 were included in the study. Data of the PPV and lens touch (excluding lens bite) complications were reviewed from an electronic database (VITREOR). Subsequent cataract surgery data and intraoperative complications were reviewed...
April 2016: Retina
https://www.readbyqxmd.com/read/26949619/visual-outcome-after-removal-of-silicone-oil-in-patients-undergoing-retinectomy-for-complex-retinal-detachment
#11
Roger Wong, Marco De Luca, Manoharan Shunmugam, Tom Williamson, Alistair Laidlaw, Valeria Vaccaro
AIM: To evaluate the functional outcome after removal of silicone oil (ROSO) in patients undergoing retinectomy for complex retinal detachment. METHODS: We performed a retrospective case note review of patients who underwent ROSO after retinectomy for complex retinal detachment. Patients with less than 6mo follow up and recurrent retinal detachment following ROSO were excluded. RESULTS: Thirty-six patients were included. The mean best corrected visual acuity (BCVA) pre-ROSO was 1...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/26939560/retinectomy-vs-vitrectomy-combined-with-scleral-buckling-in-repair-of-posterior-segment-open-globe-injuries-with-retinal-incarceration
#12
Y Wei, R Zhou, K Xu, J Wang, Z Zu
PurposeTo evaluate the anatomic and functional outcome of pars plana vitrectomy (PPV) combined with scleral buckling (SB) vs retinectomy in treating posterior segment open-globe injuries with retinal incarceration.MethodsPatients (38 eyes) with posterior segment open-globe injuries and retinal incarceration were identified, and they underwent either PPV combined with SB (PPV+SB, n=19) or retinectomy (n=19). The two groups were matched in the following categories: the severity of injury (including wound length), the location of the incarceration site and the presence of retinal detachment...
May 2016: Eye
https://www.readbyqxmd.com/read/26853865/expression-of-two-classes-of-pax6-transcripts-in-reprogramming-retinal-pigment-epithelium-cells-of-the-adult-newt
#13
Wataru Inami, Md Rafiqul Islam, Kenta Nakamura, Taro Yoshikawa, Hirofumi Yasumuro, Martin Miguel Casco-Robles, Fubito Toyama, Fumiaki Maruo, Chikafumi Chiba
The adult newt has the remarkable ability to regenerate a functional retina from retinal pigment epithelium (RPE) cells, even when the neural retina (NR) is completely lost from the eye. In this system, RPE cells are reprogrammed into a unique state of multipotent cells, named RPESCs, in an early phase of retinal regeneration. However, the signals that trigger reprogramming remain unknown. Here, to approach this issue we focused on Pax6, a transcription factor known to be expressed in RPESCs. We first identified four classes (v1, v2, v3 and v4) of Pax6 variants in the eye of adult newt, Cynops pyrrhogaster...
February 2016: Zoological Science
https://www.readbyqxmd.com/read/26685789/peripheral-360-degree-retinotomy-anterior-flap-retinectomy-and-radial-retinotomy-in-the-management-of-complex-retinal-detachment
#14
COMPARATIVE STUDY
Mumin Hocaoglu, Murat Karacorlu, Isil Sayman Muslubas, Hakan Ozdemir, Serra Arf, Omer Uysal
PURPOSE: To compare the outcomes for patients with rhegmatogenous retinal detachment (RRD) and patients with retinal detachment (RD) following penetrating injury after combined 360 degree retinotomy, anterior flap retinectomy, and radial retinotomy for the management of advanced proliferative vitreoretinopathy (PVR). DESIGN: Retrospective, comparative, interventional case series. METHODS: Twenty-four eyes (60%) of 24 patients diagnosed with RRD and 16 eyes (40%) of 16 patients diagnosed with RD after penetrating injury whose surgery involved 360 degree retinotomy, anterior flap retinectomy, and radial retinotomy for the management of advanced PVR (grade D) were included in the analysis...
March 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/26679386/beyond-the-edge-proliferation-after-relaxing-retinectomy
#15
E Denion, S Coffin-Pichonnet, A Degoumois, M-G Barcatali, T Beuste, A-L Lux
PURPOSE: To report beyond-the-edge proliferation (BTEP) after relaxing retinectomies (RR) i.e. fibrous sheets stretched between the RR edge and the far periphery; to evaluate the tractional potential and report the long-term course of BTEP. METHODS: Retrospective review of the medical records of 83 patients having undergone a RR between January 2009 and December 2014 to identify patients with BTEP. RESULTS: Six patients aged 31 to 76 were identified...
January 2016: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/26556395/m%C3%A3-ller-glia-as-an-important-source-of-cytokines-and-inflammatory-factors-present-in-the-gliotic-retina-during-proliferative-vitreoretinopathy
#16
K Eastlake, P J Banerjee, A Angbohang, D G Charteris, P T Khaw, G A Limb
Retinal gliosis is characterized by biochemical and physiological changes that often lead to Müller glia proliferation and hypertrophy and is a feature of many neuro-degenerative and inflammatory diseases such as proliferative vitreoretinopathy (PVR). Although Müller glia are known to release inflammatory factors and cytokines, it is not clear whether cytokine production by these cells mirrors the pattern of factors present in the gliotic retina. Lysates from normal cadaveric retina and gliotic retinal specimens from patients undergoing retinectomy for treatment of PVR, the Müller cell line MIO-M1 and four human Müller glial cell preparations isolated from normal retina were examined for their expression of cytokines and inflammatory factors using semi-quantitative dot blot antibody arrays and quantitative arrays...
April 2016: Glia
https://www.readbyqxmd.com/read/26491338/anatomic-and-functional-outcomes-of-retinectomy-for-the-management-of-complicated-retinal-detachment-with-proliferative-vitreoretinopathy
#17
Paraschos Tranos, Athanasios Vakalis, Solon Asteriadis, Evaggelos Lokovitis, Ilias Georgalas, Panagiotis Stavrakas
The aim of this study is to report the anatomic and functional outcomes of retinectomy for the management of rhegmatogenous retinal detachment complicated by proliferative vitreoretinopathy (PVR), comparing them with previously reported data and determining prognostic factors. Fifty-one eyes of 51 patients with established PVR grade C in which retinectomy was performed were retrospectively enrolled in the study. Primary outcome measures were anatomic success rate and final visual acuity. Secondary outcome measures were intraoperative complications, number of re-operations, and postoperative hypotony...
2015: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/26272662/metastatic-endophthalmitis-combined-with-subretinal-abscess-in-a-patient-with-diabetes-mellitus-a-case-report
#18
Tsung-Han Tsai, Kai-Ling Peng
BACKGROUND: Endogenous endophthalmitis, extra-hepatic metastasis from liver abscess with diabetes mellitus, could lead to a devastating outcome without a prompt and appropriate management. We report a case of metastatic endophthalmitis combined with subretinal abscess with successful visual outcome after treatment. CASE PRESENTATION: A 56-year-old male patient with diabetes mellitus under poor control presented to our emergency room with fever, sore throat, cough and poor appetite for 2 weeks...
2015: BMC Ophthalmology
https://www.readbyqxmd.com/read/26260357/combined-pars-plana-vitrectomy-scleral-buckle-versus-pars-plana-vitrectomy-for-proliferative-vitreoretinopathy
#19
Frank H P Lai, Ernie C F Lo, Vesta C K Chan, Mårten Brelen, Wai Ling Lo, Alvin L Young
The purpose of the study is to evaluate the surgical outcomes of combined pars plana vitrectomy-scleral buckle (PPV-SB) versus pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment complicated with proliferative vitreoretinopathy (PVR). One thousand one hundred and seventy four patients with rhegmatogenous retinal detachment surgery between January 2002 and December 2013 were retrospectively reviewed. Patients with grade C PVR treated with either combined PPV-SB or PPV alone were included in the study...
April 2016: International Ophthalmology
https://www.readbyqxmd.com/read/25834389/spontaneous-resolution-of-subfoveal-perfluorocarbon
#20
Patrick Oellers, Leon D Charkoudian, Paul Hahn
Perfluorocarbon liquids (PFCL) have transformed the surgical approach to complex retinal detachments, but their use can be complicated by subretinal retention. Migration of peripherally located subretinal PFCL towards the fovea is well established, but spontaneous resolution of subfoveal PFCL without surgical evacuation or displacement has rarely been described. We present a case of a large single retained subfoveal PFCL droplet following vitrectomy with membrane peeling, inferior relaxing retinectomy, and silicone oil tamponade that demonstrated spontaneous resolution 3 weeks postoperatively, with subsequent anatomic and visual improvement...
2015: Clinical Ophthalmology
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