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Istent trabecular microbypass stent implantation with phacoemulsification in patients with open-angle glaucoma: 6-year outcomes

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Abstract

Purpose: To investigate the long-term safety and efficacy of an iStent trabecular microbypass stent in combination with cataract surgery in eyes with primary open-angle glaucoma (POAG). Setting: Private practice; Sioux Falls, South Dakota. Design: Retrospective, consecutive case series. Methods: This case series included eyes implanted with a single trabecular microbypass stent in combination with phacoemulsification in patients with mild to severe POAG. Data were collected preoperatively and at day 1, week 1, month 1, and up to 6 years postoperatively. Primary outcome measures included mean intraocular pressure (IOP) and number of glaucoma medications. Safety was noted by assessing the incidence of IOP spikes and need for additional surgery. Results: The study comprised 411 eyes. Mean IOP was reduced to 14.9±4.2 mmHg compared to 18.8±5.6 mmHg at baseline at 6 years postoperative. The mean number of medications was reduced to 1.2±1.0 from 1.4±1.1 at baseline. In eyes with severe stage of disease, there was a mean IOP reduction >6 mmHg at 6 years postoperative. Eyes with baseline IOP ≥18 mmHg achieved a more robust reduction in IOP. Fifteen eyes underwent a secondary glaucoma procedure. There were no intra-or postoperative complications. Conclusion: Trabecular microbypass stent implantation in combination with cataract surgery provides a sustained IOP reduction in eyes with mild-to-severe POAG. The degree of IOP reduction was more significant in eyes with higher baseline IOP and severe stage of disease.

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APA

Ferguson, T. J., Mechels, K. B., Dockter, Z., Bleeker, A., Ibach, M., Schweitzer, J., & Berdahl, J. P. (2020). Istent trabecular microbypass stent implantation with phacoemulsification in patients with open-angle glaucoma: 6-year outcomes. Clinical Ophthalmology, 14, 1859–1866. https://doi.org/10.2147/OPTH.S247910

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