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KMID : 0360220200610040385
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Journal of the Korean Ophthalmological Society
2020 Volume.61 No. 4 p.385 ~ p.393
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Short-term Outcomes and Prognostic Factors of iStent in the Republic of Korea
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Park Su-Hwan
Park Keun-Heung
Lee Ji-Woong
Shin Jong-Hoon
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Abstract
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Purpose: To evaluate the intraocular pressure (IOP) reduction, success rate and prognostic factors after trabecular micro-bypass stent implantation in patients with open-angle glaucoma.
Methods: We retrospectively reviewed 33 eyes of 33 patients with open-angle glaucoma who were followed-up for more than 6 months after trabecular micro-bypass stent implantation. The success of surgery was defined as an IOP ≤ 21 mmHg and an IOP reduction ≥ 20% from baseline, regardless of whether glaucoma medication was used.
Results: During the follow-up at 6 months after trabecular micro-bypass stent implantation, the IOP was significantly decreased from 23.70 ± 6.26 mmHg before surgery to 18.03 ± 4.64 mmHg after 6 months, and the glaucoma medication was significantly decreased from 3.73 ± 0.67 before surgery to 3.43 ± 0.67 after 6 months (p < 0.001 and p = 0.027, respectively). The success rate at 6 months was 33.7 ± 5.5% in patients with only trabecular micro-bypass stent implantation. Using multiple regression analyses of the risk factors, age was associated with success rate (odds ratio, 1.076; 95% confidence interval, 0.996-1.164; p = 0.045).
Conclusions: In patients in the Republic of Korea, trabecular micro-bypass stent implantation was an effective surgery for IOP reduction, and showed a better surgical success rate in younger patients.
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KEYWORD
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Glaucoma, Intraocular pressure, iStent, Micro-invasive glaucoma surgery
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