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      Long-Term Vitreous Replacement with Perfluorohexyloctane and Silicone Oil: Preliminary Reports of a Multicentric Study

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          Abstract

          Aim: To report on the use of a combined intra-ocular tamponade with silicone oil and perfluorohexyloctane (F<sub>6</sub>H<sub>8</sub>) in the treatment of complex retinal detachment. Design: A prospective consecutive interventional case series from seven study centres. Participants: 69 patients presenting a retinal detachment with proliferative vitreoretinopathy (PVR) and retinal breaks of the inferior two quadrants of the fundus. Method: Patients were divided into two groups: (1) 28 eyes which had not been operated on before; (2) 41 eyes affected by recurrent retinal detachment that had had unsuccessful previous surgery with silicone oil or gas tamponade. A pars plana vitrectomy, membrane peeling and – when necessary – a retinotomy were performed; the vitreous cavity was filled with two thirds of F<sub>6</sub>H<sub>8</sub> and one third of silicone oil 1,000 mPas (double filling, DF). The endotamponade was removed after 30–45 days (median 38) and replaced by balanced salt solution or silicone oil according to the condition of the retina. Results: Retinal reattachment was achieved in 52 out of 69 cases (75%) 6 months after removal of the DF without any endotamponade. Conclusion: The DF with F<sub>6</sub>H<sub>8</sub> and silicone oil allows a good endotamponading to the inferior retina and the posterior pole. The DF appeared to be well tolerated. Further studies are necessary to evaluate whether a DF is advantageous in respect to silicone oil filling alone in case of retinal breaks and PVR of the inferior retina.

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          Retinal redetachment after removal of intraocular silicone oil tamponade.

          To evaluate frequency and risk factors of retinal redetachment after removal of intraocular silicone oil tamponade. The study included 225 patients who consecutively underwent intraocular silicone oil removal at a mean interval of 10 months after pars plana vitrectomy had been performed by one of two surgeons. Mean follow up time was 17.37 (SD 14.40) months (range 3.02-67.42 months). In 57 of 225 (25.3%) patients, the retina detached after removal of silicone oil. Risk factors for retinal redetachment were the following: number of previously unsuccessful retinal detachment surgeries (p=0.0008); surgeon (p=0.007); visual acuity before silicone oil removal (p=0.009); incomplete removal of vitreous base (p=0.01); absence of an encircling band in eyes with proliferate vitreoretinopathy in which an inferior retinotomy had not been performed (p=0.01); and indication for pars plana vitrectomy. Rate of retinal redetachment was statistically (p>0.05) independent of the technique of silicone oil removal and duration of silicone oil endotamponade. Retinal redetachment after removal of silicone oil endotamponade can occur in approximately a fourth of patients, depending on the criteria to use and to remove silicone oil. Risk factors for recurrent detachment included the following: number of previously unsuccessful retinal detachment surgeries, surgeon, preoperative visual acuity, incomplete removal of the vitreous base, absence of an encircling band, and reason for pars plana vitrectomy. The rate of retinal redetachment is independent of the technique of silicone oil removal and duration of silicone oil endotamponade, with a minimal duration of silicone oil tamponade of about 3 months in the present study.
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            Use of perfluorohexyloctane as a long-term internal tamponade agent in complicated retinal detachment surgery

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              Clinicopathological correlation of epiretinal membranes and posterior lens opacification following perfluorohexyloctane tamponade.

              Epiretinal and retrolental proliferation may occur during prolonged use of the novel tamponade agent perfluorohexyloctane (F(6)H(8)). This study aims to determine whether there is any histological evidence that F(6)H(8) has a role in the formation of these membranes.
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                Author and article information

                Journal
                OPH
                Ophthalmologica
                10.1159/issn.0030-3755
                Ophthalmologica
                S. Karger AG
                0030-3755
                1423-0267
                2005
                June 2005
                08 June 2005
                : 219
                : 3
                : 147-153
                Affiliations
                aOspedale Santa Chiara, Pisa, bOspedale di Conegliano, Veneto, cSpedali Civili di Brescia, Brescia, dCasa di Cura Città di Pomezia, Roma, eOspedale Vietri, Larino Campobasso, fOspedali Riuniti di Bergamo, Bergamo, and gOspedale S. Gerardo, Monza, Italy
                Article
                85247 Ophthalmologica 2005;219:147–153
                10.1159/000085247
                15947500
                © 2005 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                Page count
                Figures: 6, References: 23, Pages: 7
                Categories
                Original Paper

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