Purpose. To evaluate the efficacy of @entity726 Valve (AGV) implantation in @entity1 with @entity726 in a tertiary hospital in Brazil. Methods. Retrospective case series of @entity1 who underwent AGV implantation. Primary outcome was to assess the rate of failure, which was defined as intraocular pressure (IOP) in two consecutive visits greater than 18 or lower than 5 mmHg (criterion 1) or IOP greater than 15 or lower than 5   mmHg (criterion 2). The secondary outcome was to investigate risk factors for failure. Results. 112 eyes from 108 @entity1 underwent AGV implantation between 2000 and 2012. Mean follow-up time was 2.54 (  1.52) years. Kaplan-Meier survival analysis showed cumulative probabilities of success of 80.3%, 68.2%, and 47.3% at 1, 3, and 5 years using 18   mmHg as endpoint. When adopting 15   mmHg as endpoint, cumulative success rates were 80.3%, 60.7%, and 27.3% at 1, 3, and 5 years, respectively. Multivariate analysis with generalized estimating equations revealed that African American ancestry and early @entity101 phase were risk factors for failure (P = 0.001 and P = 0.002, resp.). Conclusion. A success rate of approximately 50% was obtained 5 years after the implantation of an AGV. African American ancestry and early @entity101 phase were associated with increased risk of failure.

Ahmed XXXX in a Tertiary Hospital in Brazil.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity101 :: ('MESH:D006973', 'Disease') :: ['hypertensive'] @entity726 :: ('MESH:D005901', 'Disease') :: ['refractory glaucoma', 'Ahmed Glaucoma']
@entity726 :: (MESH:D005901,Disease) :: ['Glaucoma Valve Implantation for Refractory Glaucoma']
