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KMID : 0360220210620020243
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Journal of the Korean Ophthalmological Society
2021 Volume.62 No. 2 p.243 ~ p.252
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One-year Result of Trabeculectomy Following a Failed Trabecular Micro-bypass Stent
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Kim Sung-Joon
Moon Sang-Woo
Lee Ji-Woong
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Abstract
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Purpose: To evaluate the efficacy of trabeculectomy with mitomycin C (MMC) for primary open angle glaucoma (POAG) in eyes refractory to a trabecular micro-bypass stent.
Methods: We reviewed the medical records of patients with POAG who underwent trabeculectomy with MMC after failed trabecular micro-bypass stent implantation. All patients had a ≥12 months follow-up. We compared surgical outcomes according to trabecular micro-bypass stent implantation using a Kaplan-Meier survival analysis. Complete surgical success was defined as intraocular pressure (IOP) ≤18 mmHg and IOP reduction ≥20% without medication.
Results: A total of 19 patients (20 eyes) were included; 10 eyes of nine patients in the trabecular micro-bypass stent group and 10 eyes of 10 patients in the control group. The cumulative probabilities of complete success after trabeculectomy with MMC were 80% and 90% after 1 year in the trabecular micro-bypass stent and control groups, respectively (p = 0.584). Mean IOP decreased from 29.0 ± 7.4 mmHg preoperatively to 12.4 ± 3.1 mmHg at the final visit in the trabecular micro-bypass stent group (p < 0.001). Mean IOP decreased from 29.2 ± 7.5 mmHg preoperatively to 12.1 ± 4.1 mmHg at the final visit in the control group (p < 0.001). The preoperative and final IOP were not significantly different between the two groups (p = 0.828, p = 0.387, respectively).
Conclusions: Trabeculectomy with MMC was an effective method for controlling IOP in patients with POAG refractory to a trabecular micro-bypass stent.
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KEYWORD
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Primary open-angle glaucoma, Stent, Trabeculectomy
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