One-year Result of Trabeculectomy Following a Failed Trabecular Micro-bypass Stent
10.3341/jkos.2021.62.2.243
- Author:
Sung Joon KIM
1
;
Sang Woo MOON
;
Ji Woong LEE
Author Information
1. Department of Ophthalmology, Pusan National University College of Medicine, Busan, Korea
- Publication Type:Original Article
- From:Journal of the Korean Ophthalmological Society
2021;62(2):243-252
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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.
