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  • Title: Gonioscopy-Assisted Transluminal Trabeculotomy in Uveitis-Related Ocular Hypertension and Glaucoma.
    Author: Bouhout S, Bachour K, Harasymowycz P, Jaworski L, Wang Q, Durr GM.
    Journal: J Glaucoma; 2024 Jun 01; 33(6):464-472. PubMed ID: 38506842.
    Abstract:
    PRCIS: Gonioscopy-assisted transluminal trabeculotomy (GATT) may be an effective first-line surgery for decreasing intraocular pressure (IOP) and medication burden in patients with uveitis-related ocular hypertension (OHT) or glaucoma. OBJECTIVE: The purpose of the study is to determine the efficacy of GATT in lowering IOP in uveitis-related OHT or glaucoma. METHODS: Retrospective case series that included patients with uveitis-related OHT or glaucoma who underwent GATT with or without concomitant cataract extraction and intraocular lens implantation at 2 Canadian academic centres from July 2018 to May 2022. Primary outcomes were: complete (no medications) and qualified success (with medication), and failure defined as (1) IOP >21 mm Hg with maximal medical therapy, (2) the need for additional glaucoma procedure, (3) loss of light perception secondary to glaucoma, and (4) IOP <6 mm Hg for 3 months. RESULTS: Twenty-one eyes from 18 patients were included with a mean preoperative IOP of 26.2 ± 7.3 mm Hg on 4.3 ± 0.7 classes of glaucoma drops. The average follow-up was 29.2 ± 17.6 months and 76% of eyes (n = 16) had reached at least 12 months of follow-up. At the 12-month follow-up visit, there was a significant decrease in average IOP by 9.9 ± 7.9 mm Hg (38%, P = 0.005) and a decrease of 1.9 in glaucoma medication classes ( P = 0.002). Of eyes, 14% achieved complete success, whereas 80% of eyes achieved qualified success. Six eyes failed (29%) and 5 patients (24%) required additional glaucoma surgery. The most common postoperative complication was hyphema (n = 9; 43%). CONCLUSION: This small case series suggests that GATT may be an effective first-line surgery for decreasing IOP and medication burden in patients with uveitis-related OHT or glaucoma. Further studies with longer follow-ups should be conducted to assess its long-term outcomes.
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