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The Incidence of Urgent Tube Shunt Surgery for Diabetic Neovascular Glaucoma at a Tertiary Academic Medical Center.

Abstract

BACKGROUND: Diabetic neovascular glaucoma is a secondary glaucoma that may require immediate correction of elevated intraocular pressure to control pain and protect the optic nerve. While there is a seasonal trend to glucose levels, it is unknown if a seasonal trend exists for diabetic neovascular glaucoma. OBJECTIVE: This study evaluates the incidence of urgent glaucoma tube shunt implantation in diabetic neovascular glaucoma in a tertiary academic referral center in Southern California. METHODS: Electronic medical records were queried for urgent glaucoma tube shunt surgery from 2014 to 2021. The number of cases were separated by month of occurrence, and average hemoglobin A1c values were calculated per month. Data were analyzed via ANOVA tests and one-tailed t-tests. RESULTS: A total of 127 cases were identified. The months of March and April contained the most cases averaging 3 and 2.75 cases, respectively. April had statistically significant higher case numbers than that of other months (P = .041). ANOVA tests excluding April showed no statistically significant difference between the remaining months (P = .901). Average hemoglobin A1c values were highest in the months of April and March at 9.8 and 9.6%, respectively. CONCLUSION: Emergency glaucoma tube shunt surgery for diabetic neovascular glaucoma occurs most frequently in April. This observation may provide insight into disease prevention through diabetes management and help improve surgical operations such that staffing and resources are allocated accordingly.

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