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Abstract #80444 Published in IGR 20-3
Trabecular microbypass stent implantation in pseudophakic eyes with open-angle glaucoma: Long-term results
Ferguson TJ; Ibach M; Schweitzer J; Karpuk K; Stephens JD; Sudhagoni R; Berdahl JPJournal of Cataract and Refractive Surgery 2019; 45: 414-420
PURPOSE: To evaluate the long-term safety and efficacy of a trabecular microbypass stent as a sole procedure in pseudophakic eyes with open-angle glaucoma. SETTING: Private practice; Sioux Falls, South Dakota, USA. DESIGN: Retrospective, consecutive case series. METHODS: The series included pseudophakic eyes of patients with mild to severe open-angle glaucoma (OAG) implanted with 1 trabecular microbypass stent. Data was collected at baseline before the surgery and at 1 day, 1 week, 1 month, and up to 48 months postoperatively. The data included intraocular pressure (IOP), number of glaucoma medications, and whether there was a requirement for secondary surgery. RESULTS: The study comprised 40 patients (51 eyes). The mean IOP was reduced from 20.33 mm Hg ± 4.83 (SD) at baseline to 15.65 ± 3.45 mm Hg at 48 months postoperatively, indicating a 23% reduction (P < .01). The mean number of glaucoma medications was 2.08 ± 1.06 preoperatively and 1.46 ± 1.07 at 48 months postoperatively (P > .05). Postoperatively, 3 eyes (6%) had IOP spikes of 15 mm Hg or higher than the preoperative value, which responded to topical therapy. Ten eyes (20%) required secondary glaucoma surgery. There were no postoperative or intraoperative complications. Patients who had previous ocular hypotensive medication use and an IOP of 18 mm Hg or higher achieved a statistically significant reduction in both IOP and medication use. CONCLUSIONS: The insertion of a single trabecular microbypass stent effectively provided a sustained reduction in IOP in pseudophakic patients with mild to severe OAG. The IOP reduction was more robust in eyes that had a higher baseline IOP.
Sanford School of Medicine, South Dakota, USA. Electronic address: tannerferg@gmail.com.
Full articleClassification:
12.8.2 With tube implant or other drainage devices (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
9.4.11.2 Glaucomas in aphakia and pseudophakia (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.11 Glaucomas following intraocular surgery)
