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Anales de la Sociedad Mexicana de Oftalmología y Archivos de la Asociación Para Evitar la Ceguera en México

2004, Number 5

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Rev Mex Oftalmol 2004; 78 (5)

Manejo del glaucoma neovascular refractario empleando la válvula de Ahmed. Experiencia clínica de corto plazo en un centro de referencia

Osorio-Miranda A, Gil-Carrasco F, García P, Noguera Á, Paczka ZJA

Language: Spanish
References: 38
Page: 237-244
PDF size: 319.55 Kb.


ABSTRACT

Purpose: To assess the short-term efficacy and safety of Ahmed valve to control intraocular pressure (IOP) in eyes affected by neovascular glaucoma.
Methods: A retrospective review of 521 consecutive cases of Mexican patients who underwent Ahmed valve implantation in one of their eyes due to congestive neovascular glaucoma was performed. Ninety five percent (n = 497) of the patients were followed-up at least three months.
Results: Pre-operative mean IOP (41.3 ± 12.7 mm Hg) was significantly reduced (P = 0.0001) at 3 months after surgery (17.7 ± 7.3 mm Hg). Overall surgical success one day, one week, one month, and three months after surgery was 80.4%, 86.8%, 80.2%, and 78.8%, respectively. Surgical success was more common among patients that underwent pan-retinal photocoagulation prior to valve implantation as compared to those that did not (P = 0.0027). Most common complications were encapsulated bleb (13.2%), anterior chamber narrowing (9.9%), hypotony (2.7%), and hyphema (1.5%).
Conclusions: The Ahmed valve implant is an effective and relatively safe device for controlling IOP in Mexican patients with congestive neovascular glaucoma, at least in the short-term.


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