Determinants of Corneal Endothelial Cell Loss After Trabeculectomy With Mitomycin C
- 1 January 2019
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Journal of Glaucoma
- Vol. 28 (1), 61-67
- https://doi.org/10.1097/ijg.0000000000001108
Abstract
Purpose: To investigate factors associated with decreased corneal endothelial cell density (ECD) after trabeculectomy with mitomycin C (MMC). Methods: Retrospective review of consecutive glaucoma cases who underwent trabeculectomy with MMC. The types of glaucoma included were primary open-angle glaucoma, exfoliation glaucoma (XFG), neovascular glaucoma, and uveitic glaucoma (UG). The postoperative ECD changes compared with the preoperative ECD and risk factors for ECD decrease were analyzed using mixed-effects models. Results: In total, 162 eyes of 136 patients were included in this study. Postoperative ECD measurements were performed 3.7±1.8 times (mean±SD) during a median follow-up period of 34 months. The mean intraocular pressure decreased from 25.3±9.6 to 9.2±2.3 mm Hg postoperatively. The marginal mean (SE) ECD decrease at 24 months was 9.3% (1.3%) in all cases. The marginal mean ECD decrease at 24 months was 18.2% (3.1%) and 20.6% (4.7%) in eyes with XFG and UG, respectively, which was significantly greater than 4.8% (1.8%) in eyes with primary open-angle glaucoma (P<0.001, each), after accounting for the variability in the number and timepoint of ECD measurements. Multivariate mixed-effects model analyses showed that type of glaucoma (XFG and UG) and older age were significantly associated with larger ECD decrease, and preoperative factors (oral carbonic anhydrase inhibitor and vitrectomy) and postoperative choroidal detachment were significantly associated with a declining trend of ECD over time. Conclusions: The type of glaucoma (XFG, UG) and older age were risk factors for larger ECD decrease after trabeculectomy with MMC.Keywords
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