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1 General aspects (0)   1.1 Epidemiology (4)   1.2 Population genetics (1)   1.3 Pathogenesis (4)   1.4 Quality of life (2)   1.5 Glaucomas as cause of blindness (6)   1.6 Prevention and screening (4) 2 Anatomical structures in glaucoma (1)   2.1 Conjunctiva (0)   2.2 Cornea (6)   2.3 Sclera (0)   2.4 Anterior chamber angle (0)   2.5 Meshwork (2)     2.5.1 Trabecular meshwork (5)     2.5.2 Schlemms canal (0)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (0)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (2)   2.10 Lens (1)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (0)   2.13 Retina and retinal nerve fibre layer (13)   2.14 Optic disc (6)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (0)   2.17 Stem cells (0)   2.20 Other (0) 3 Laboratory methods (1)   3.1 Microscopy (1)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (7)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (10)     3.4.2 Gene studies (1)   3.5 Molecular biology incl. 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    9.4.1 Steroid-induced glaucoma (2)     9.4.2 Glaucomas associated with disorders of the cornea, conjunctiva, sclera (0)       9.4.2.1 Iridocorneal endothelial syndrome (ICE, incl. irisatrophy) (1)       9.4.2.2 Posterior polymorphous dystrophy (0)       9.4.2.3 Fuchs' endothelial dystrophy (0)       9.4.2.5 Other (0)     9.4.3 Glaucomas associated with disorders of the iris and ciliary body (0)       9.4.3.1 Pigmentary glaucoma (0)       9.4.3.5 Other (0)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (6)       9.4.4.2 Glaucomas associated with cataracts (0)       9.4.4.3 Glaucomas associated with lens dislocation (0)       9.4.4.5 Other (0)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (1)       9.4.5.1 Neovascular glaucoma (2)       9.4.5.5 Other (0)     9.4.6 Glaucomas associated with inflammation, uveitis (4)     9.4.7 Glaucomas associated with ocular trauma (0)     9.4.8 Glaucomas associated with intraocular tumors (0)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (0)       9.4.10 Glaucomas associated with hemorrhage (0)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (0)       9.4.11.2 Glaucomas in aphakia and pseudophakia (0)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (0)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (0)     9.4.15 Glaucoma in relation to systemic disease (3)     9.4.20 Other (0) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (2) 11 Medical treatment (0)   11.1 General management, indication (4)   11.2 Cholinergic drugs (0)   11.3 Adrenergic drugs (1)     11.3.1 Epinephrine (0)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (2)     11.3.4 Betablocker (10)     11.3.5 Other (0)   11.4 Prostaglandins (15)   11.5 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tube implant (10)     12.8.2 With tube implant or other drainage devices (9)     12.8.3 Non-perforating (3)     12.8.4 Using laser (0)     12.8.5 Other (0)     12.8.10 Woundhealing antifibrosis (8)     12.8.11 Complications, endophthalmitis (3)   12.9 Trabeculotomy, goniotomy (1)   12.10 Cyclodestruction (2)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (1)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (9)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (2)   12.15 Capsulotomy (0)   12.16 Vitrectomy (0)   12.17 Anesthesia (1)   12.20 Other (1) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (0)   13.2 Outcome (0)     13.2.1 IOP (0)     13.2.2 Visual field (0)       13.2.2.1 Progression (0)       13.2.2.2 Improvement (0)     13.2.3 Other (0) 14 Costing studies; pharmacoeconomics (7) 15 Miscellaneous (7)

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Abstract #13459 Published in IGR 8-1

Pars plana insertion of glaucoma drainage devices for refractory glaucoma

PU de Guzman MH; Valencia A; Farinelli AC
Clinical and Experimental Ophthalmology 2006; 34: 102 -107

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BACKGROUND: Glaucoma drainage devices are more commonly inserted into the anterior chamber because of the relative ease of this method of insertion. However, in certain cases, posterior placement of the tube may be necessary or may be more desirable. The outcome of a series of patients with glaucoma drainage devices inserted into the pars plana was examined. METHODS: Retrospective chart review of patients who underwent pars plana implantation of Molteno and Baerveldt glaucoma drainage devices at the Sydney Eye Hospital. RESULTS: There were 33 cases reviewed. The mean follow-up period was 30.2 months. The mean final postoperative intraocular pressure was reduced to 13.4 ± 4.4 mmHg (SD) from 33.06 ± 8.47 mmHg preoperatively. The mean number of intraocular pressure-lowering medications in use postoperatively was 0.6 ± 0.8, reduced from 3.6 ± 1.27 medications in use preoperatively. Sixteen (48.5%) eyes were classified as complete successes, 14 (42.4%) eyes as qualified successes and three eyes (9%) as failures. Kaplan-Meier survival analysis for cumulative success (absence of failure) predicted 61.1% survival at 60 months. Complications included five cases of decompensation of corneas or corneal grafts, one case each of conjunctival wound dehiscence, large choroidal effusion, epiretinal membrane, Molteno plate extrusion and intraocular pressure unresponsive to medical therapy, and three cases of tube blockage. CONCLUSIONS: In this series of patients, pars plana insertion of glaucoma drainage devices has been shown to be an effective alternative for selected cases where anterior chamber tube insertion is not possible or is not ideal.

Dr. M. Hannah PU de Guzman, Asian Hospital and Medical Center, Alabang, Muntinlupa City 1780, Philippines. hannah.eyemd@gmail.com

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Classification:

12.8.2 With tube implant or other drainage devices (Part of: 12 Surgical treatment > 12.8 Filtering surgery)

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