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Title: Three-year outcomes of Descemet's stripping endothelial keratoplasty in eyes with pre-existing glaucoma drainage devices.
Authors: Hernstadt, David Justin
Chai, Charmaine 
Tan, Anna 
Manotosh, Ray 
Keywords: Aged
Corneal Diseases
Descemet Stripping Endothelial Keratoplasty
Filtering Surgery
Follow-Up Studies
Glaucoma Drainage Implants
Graft Survival
Intraocular Pressure
Middle Aged
Retrospective Studies
Time Factors
Visual Acuity
Issue Date: Oct-2019
Citation: Hernstadt, David Justin, Chai, Charmaine, Tan, Anna, Manotosh, Ray (2019-10). Three-year outcomes of Descemet's stripping endothelial keratoplasty in eyes with pre-existing glaucoma drainage devices.. Canadian Journal of Ophthalmology 54 (5) : 577-584. ScholarBank@NUS Repository.
Abstract: BACKGROUND: Descemet's stripping endothelial keratoplasty (DSEK) is the most common procedure for corneal transplantation. The effect of a pre-existing glaucoma drainage device on long-term surgical outcomes is uncertain. METHODS: A retrospective chart review of all DSEK cases at an academic hospital over a 10-year period was conducted. RESULTS: 37 eyes who had undergone DSEK were included for analysis. These consist of 12 eyes with pre-existing GDD (GDD group), 13 eyes with glaucoma but no previous GDD (no-GDD group), and a control group of 12 patients with no ocular comorbidities apart from the indication for DSEK (control group). Visual acuity (VA) was significantly improved amongst all 3 groups, and there was no significant difference in VA between the GDD and no-GDD groups. There were no significant differences in absolute or increase in IOP between all three groups at 3 years. Graft survival rates of the 3 groups were not significantly different at 12 months. However, at 36 months, graft survival was 63% in the GDD group compared to 81% in the no-GDD group and 92% in the control group. In the GDD group, an increase in number of preoperative glaucoma drops, and a tube location in the anterior chamber were associated with an increased hazard ratio for failure. CONCLUSIONS: Presence of a GDD adversely affects graft survival whereas glaucomatous eyes which were medically managed or surgically managed without a GDD had survival rates comparable to controls. Glaucoma-filtering surgeries may confer graft survival advantage over tube shunt surgeries after DSEK.
Source Title: Canadian Journal of Ophthalmology
ISSN: 0008-4182
DOI: 10.1016/j.jcjo.2018.12.012
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