oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

匹配条件: “vitrectomy” ,找到相关结果约253条。
列表显示的所有文章,均可免费获取
第1页/共253条
每页显示
Development of Surgical Treatment for Vitreous Disease  [PDF]
Tatsuya Mimura, Hidetaka Noma, Hideharu Funatsu
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.311101
Abstract: Vitreous surgery has improved remarkably with various advances in surgical instruments and techniques. The two most important breakthrough in recent years have been the introduction of small-gauge pars plana vitrectomy (PPV) systems and new illumination devices. Compared with traditional 20-gauge PPV, sutureless small-gauge PPV appears to be safer, with a shorter operating time, less postoperative inflammation, less patient discomfort, and more rapid recovery of visual acuity. This article reviews recent progress in the surgical management of vitreous disease with a historical perspective.
Nuevo dispositivo para biopsias vítreas
Olea,JL; Mateos,JM; Dieguez,JM; Cardona,A;
Archivos de la Sociedad Espa?ola de Oftalmología , 2004, DOI: 10.4321/S0365-66912004001100009
Abstract: purpose/methods: description of a simply-made device for obtaining vitreous biopsies. results/conclusions: this new device allows the surgeon to control aspiration, thereby enabling the obtention of many vitreous biopsies both diluted and undiluted.
Cirugía de vitrectomía para el tratamiento de las complicaciones vítreo-retinianas asociadas a pars planitis
Molina-Prat,N.; Adán,A.M.; Mesquida,M.; Pelegrini,L.; Rey,A.; álvarez,G.;
Archivos de la Sociedad Espa?ola de Oftalmología , 2010, DOI: 10.4321/S0365-66912010001000004
Abstract: objective: to evaluate the effect of pars plana vitrectomy in the management of patients with pars planitis. methods: a retrospective analysis of the clinical course, post-operative complications and recurrent uveal inflamation following pars plana vitrectomy in patients with pars planitis. results: the study included 22 eyes of 19 patients. the mean follow-up was 55.7 (±39.6) months (range 7 - 144 months). the surgical indications were, persistent vitreous opacities in 10 eyes, vitreous haemorrhage in 9 eyes, and epiretinal membrane in 3 eyes. there was an improvement in the clinical course of the uveitis in 19 of the 22 eyes (86.4%), allowing the suspension of the systemic treatment in 16 patients. an improvement of the visual acuity was observed in 20 eyes (90.9%). the most common post-operative complications were, lens opacities in 9 eyes (40.9%), and glaucoma in 4 eyes (18.2%). conclusions: the results of this study suggest that pars plana vitrectomy has a beneficial effect on the course and visual function of patients with vitreo-retinal complications associated with pars planitis.
Cirugía de agujero macular sin posición ?boca abajo? postoperatoria: Estudio piloto
Guerrero-Naranjo,J.L.; Cortés-Luna,C.; Morales-Cantón,V.; Colina-Lúquez,J.; Rivera-Sempertegui,J.; Navarro-López,P.; De Regil,M.; Blanco-Moreno,E.; Quiroz-Mercado,H.;
Archivos de la Sociedad Espa?ola de Oftalmología , 2006, DOI: 10.4321/S0365-66912006000600005
Abstract: purpose: to evaluate the visual and anatomical outcomes of macular hole surgery using phacoemulsification, vitrectomy and intraocular gas tamponade without the use of postoperative face down positioning. methods: phacoemulsification with an intraocular lens implant, followed by vitrectomy with internal limiting membrane peeling and perfluoropropane (c3f8), was performed in patients with stage 3 or 4 macular holes. after surgery, patients had to avoid the supine position for 15 days. patients with a gas level <50% during the first week had a fluid-gas exchange. visual acuity and closure of the macular hole were evaluated after 1 year of follow-up. results: 20 eyes of 20 patients, aged 60 to 75 years (median age 68 years), were included in this study. the best initial visual acuity ranged from 0.05 to 0.13 (etdrs), with the median being 0.06. the final visual acuity was 0.05 to 0.30 with a median of 0.10. a statistically significant improvement (p=0.001, wilcoxon) was found. the anatomic postoperative results revealed 90% (n=18) of the macular holes were closed while 10% (n=2) were not. conclusions: macular hole surgery has, in general, good results and patients can achieve improvement in their visual acuity without the need for uncomfortable and unbearable post operative posture positions.
Facoemulsificación en ojos post-vitrectomía pars plana
Suárez-Tatá,M; Villase?or-Díez,J; Suárez-Tatá,LM; Suárez-Licona,AM; García-Gardu?o,LM; Quiroz Mercado,H; Villar Kuri,J;
Archivos de la Sociedad Espa?ola de Oftalmología , 2004, DOI: 10.4321/S0365-66912004001100004
Abstract: objective: this study focuses on determining the intra- and post-operative complications stemming from technical difficulties, anatomical aspects, intraoperatory management and visual outcome of post-vitrectomized patients that undergo phacoemulsification. method: in this prospective, longitudinal, observational and descriptive study phacoemulsification was performed in 25 post-vitrectomized eyes that required cataract surgery. pre-surgical variables: sex, age, affected eye, visual accuity, underlying vitreoretinal disease, anterior segment morphological findings such as: cataract density and pupil alterations. intrasurgical variables: characteristic of anterior chamber and pupil, phacoemulsification technique and time and the presence of complications. post-surgical variables were also registered: visual capacity and the presence of complications. minimum six-month follow-up period. results: the average interval between pars plana vitrectomy and phacoemulsification was 18.5 months. silicone oil was the most frequent tamponade used in our serie (44%). biomicroscopical findings were miosis 28% and posterior synechies 24%. the average interval of phaco time was 2.26 minutes. the intraoperative findings were fluctuations in the anterior chamber depth (24%) and anterior capsular tears (12%). the postoperative complications most frequently seen were posterior capsular plaque (28%) and corneal edema (16%). conclusions: phacoemulsification is a safe and effective technique in eyes after pars plana vitrectomy that require cataract surgery. the surgeon must be aware of the morphological and anatomical findings of these eyes. visual rehabilitation will generally be determined by the presence of an underlying vitreo-retinal pathology.
Pars plana vitrectomy and silicone oil tamponade for acute endophthalmitis treatment
Siqueira, Rubens Camargo;Gil, Aline Degasperi Cote;Canamary, Fabio;Minari, Mirian;Jorge, Rodrigo;
Arquivos Brasileiros de Oftalmologia , 2009, DOI: 10.1590/S0004-27492009000100006
Abstract: purpose: to evaluate the outcomes of pars plana vitrectomy and silicone oil injection for the treatment of infectious endophthalmitis. methods: 35 cases of endophthalmitis secondary to phacoemulsification (20 patients), trabeculectomy (8 patients), perforating trauma (2 patients), trauma (2 patients), corneal transplantation (1 patient), vitrectomy (1 patient) and corneal ulceration (1 patient) were retrospectively studied. patients were separated into two groups: group 1 (n=24): intravitreal antibiotic injection, associated with topical and oral antibiotics; group 2 (n=11): vitrectomy with intravitreal antibiotic injection and silicone oil injection. the follow-up ranged from 1 to 48 months (mean of 16 months). results: from 24 patients in group 1, 11 patients (45.83%), had infection controlled with intravitreal antibiotic injection only; 13 patients (54.15%) regressed to uncontrolled endophthalmitis, in which two patients (8.33%) were submitted to evisceration and one patient (4.16%) had corneal melting. the remaining 10 patients (41.66%) with uncontrolled endophthalmitis were submitted to pars plana vitrectomy and silicone oil injection. six patients (25%) from group i had retinal detachment during the first month of follow-up and also required pars plana vitrectomy and silicone oil injection. in group 2 patients (n=11), all of them had controlled infection at the first procedure. in one case (9.09%), a severe proliferatative vitreoretinopathy induced loss of vision. conclusion: these results suggest that silicone oil tamponade might be beneficial in the treatment strategy of infectious endophthalmitis.
Clinical features, histopathological analysis and surgical treatment of a free floating vitreous cyst: a case report
Lira, Rodrigo Pessoa Cavalcanti;Jungmann, Patrícia;Moraes, Luis Felipe Lynch de;Silveira, Ana Paula Teles;
Arquivos Brasileiros de Oftalmologia , 2006, DOI: 10.1590/S0004-27492006000500026
Abstract: the authors present a report of a 44-year-old female patient, with complaints of visual disturbances in the left eye. the symptoms were present for at least 5 years and worsened in the last 2 years, impairing her activities. the patient reported perception of a floating circle, which blurred her vision. there was no previous history of trauma, infectious or inflammatory disease. clinical evaluation included physical examination, laboratory testing, abdominal ultrasonography, thorax x-ray and head tomography. ophthalmologic examination consisted of visual acuity, motility tests, biomicroscopy, tonometry and indirect ophthalmoscopy. complementary investigation was done with a and b scan ocular ultrasonography. the chosen therapeutic approach to excise the cyst was pars plana vitrectomy, successfully performed. anatomopathologic analysis revealed a pigmented vitreous cyst, of possible congenital origin, described as a cystic choristoma from the primitive hyaloid system. benign evolution, clinical findings and histopathological analysis corroborated the diagnostic hypothesis of a cystic choristoma of the primitive hyaloid system. surgery (pars plana vitrectomy) was successful and the patient returned with visual acuity of 20/20 in both eyes, and with no further complaints.
Intravenous sodium fluorescein enhances the visibility of vitreous during vitrectomy surgery for diabetic retinopathy
Siqueira, Rubens Camargo;Jorge, Rodrigo;Canamary, Fabio;
Revista Brasileira de Oftalmologia , 2008, DOI: 10.1590/S0034-72802008000400005
Abstract: objective: to observe the effectiveness of intravenous sodium fluorescein visibility in the vitreous during vitrectomy surgery in patients with diabetic retinopathy. methods: fourteen consecutive cases of vitreoretinal surgery for vitreous hemorrhage and tractional retinal detachment secondary to diabetic retinopathy underwent intravenous injection of sodium fluorescein to 20% 1 hour before the surgery. the images of the steps of the surgeries were recorded. results: the sodium fluorescein stained green from the vitreous peripheral, vitreous base, posterior hyaloid, further improving visibility to a complete and more secure vitrectomy. the sodium fluorescein also stained fibrous points (sites of neovascularization) with high intensity making it easier its visibility. no complications associated with the dye injection were observed in all cases. conclusion: intravenous sodium fluorescein can be used safely for facilitating the observation of the vitreous, vitreous base, posterior hyaloid and sites of neovascularization. this technique can facilitate the process of vitrectomy in patients with diabetic retinopathy.
Tratamiento quirúrgico de las membranas epirretinales
Mier Armas,Mayra; Vila Dopico,Ileana; Eguía Martínez,Frank; Ramos López,Meisy;
Revista Cubana de Oftalmolog?-a , 2003,
Abstract: the functional and anatomical results of the patients operated on of the epiretinal macular membrane to determine the complications and to correlate the clinical and demographic factors influencing the visual result were evaluated. a retrospective study was conducted in 33 patients that underwent vitrectomy via pars plana in a period of 2 years. the results showed that there was a visual improvement of more than 2 lines in 69 % of the cases. the anatomical success was of 93 % and there were complications in 15.5 %. in addition to the significant symptomatological postoperative visual improvement, a low frequency of complications was observed. the etiology of the membrane, the time of evolution and the complications influenced the final visual acuity. the membrane removal procedure proved to be the most adequate.
Transition to a novel advanced integrated vitrectomy platform: comparison of the surgical impact of moving from the Accurus vitrectomy platform to the Constellation Vision System for microincisional vitrectomy surgery
Murray TG, Layton AJ, Tong KB, Gittelman M, Latiff A, Gologorsky D, Vigoda MM
Clinical Ophthalmology , 2013, DOI: http://dx.doi.org/10.2147/OPTH.S35603
Abstract: ansition to a novel advanced integrated vitrectomy platform: comparison of the surgical impact of moving from the Accurus vitrectomy platform to the Constellation Vision System for microincisional vitrectomy surgery Original Research (510) Total Article Views Authors: Murray TG, Layton AJ, Tong KB, Gittelman M, Latiff A, Gologorsky D, Vigoda MM Published Date February 2013 Volume 2013:7 Pages 367 - 377 DOI: http://dx.doi.org/10.2147/OPTH.S35603 Received: 04 July 2012 Accepted: 14 October 2012 Published: 19 February 2013 Timothy G Murray,1,2 Andrew J Layton,3 Kuo B Tong,3 Michael Gittelman,2 Azeema Latiff,1,2 Daniel Gologorsky,2 Michael M Vigoda2 1Murray Ocular Oncology and Retina, Miami, FL, USA; 2Bascom Palmer Eye Institute, Anne Bates Leach Eye Hospital, Departments of Ophthalmology, Anesthesiology and Radiation Oncology, University of Miami Miller School of Medicine, Miami, FL, USA; 3Quorum Consulting, San Francisco, CA, USA Background: Microincisional vitrectomy surgery (MIVS) is the current standard surgical approach for pars plana vitrectomy. Historically, the most common surgical platform for vitrectomy surgery, since its introduction in 1997, has been the Accurus vitrectomy system. Recent introduction of the next generation of vitrectomy platforms has generated concerns associated with transitioning to new technology in the operating room environment. This study compared, in a matched fashion, surgical use of the Accurus vitrectomy system and the next generation Constellation Vision System to evaluate surgical efficiencies, complications, and user perceptions of this transition. Methods: Electronic health records were abstracted as a hospital quality assurance activity and included all vitreoretinal surgical procedures at the Bascom Palmer Eye Institute, Anne Bates Leach Eye Hospital, during two discrete 12-month time periods. These two periods reflected dedicated usage of the Accurus (June 2008–May 2009) and Constellation Vision (July 2009–June 2010) systems. Data were limited to a single surgeon and evaluated for operating room (OR) total time usage/day, OR case time/case, and OR surgical time/case. Further analysis evaluated all patients undergoing combined MIVS and clear cornea phacoemulsification/intraocular lens (IOL) implantation during each individual time period to determine the impact of the instrumentation on these parameters. All records were evaluated for intraoperative complications. Results: Five hundred and fourteen eligible patients underwent MIVS during the 2-year study windows, with 281 patients undergoing surgery with the Accurus system and 233 patients undergoing surgery with the Constellation system. Combined MIVS and phacoemulsification with IOL implantation was performed 141 times during this period with the Accurus and 158 times during the second study period with the Constellation. Total number of patients operated per day increased from 7.55 with Accurus to 8.53 with Constellation. Surgical room time decreased f
第1页/共253条
每页显示


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.