Abstract
To evaluate the effect of adjunctive intravitreal bevacizumab (ivBe) with trabeculectomy versus trabeculectomy alone in the management of patients with neovascular glaucoma (NVG). Retrospective, consecutive, interventional case series. NVG patients were divided into groups by treatment: with adjunctive ivBe and trabeculectomy (ivBe group, n = 14 eyes) and with trabeculectomy only (control group, n = 28 eyes). The main outcome measure was visual acuity. Regression of iris neovascularization (NVI), change(s) in intraocular pressure (IOP), NVI recurrence, additional glaucoma surgeries required, eyes of leading to total blindness, intraoperative and postoperative complications, and number of topical medications required after trabeculectomy were regarded as second outcome measures. In the ivBe group, intravitreal injections of 2.5 mg bevacizumab were delivered using a sharp 27-gauge needle through the inferotemporal quadrant. Of 42 eyes of 42 patients identified, change in IOP, additional glaucoma surgeries required, and number of IOP-lowering topical medications required after trabeculectomy did not differ significantly between groups (P > 0.05 for all). However, the ivBe group had significantly higher frequency and rapidity of iris neovascular regression, improved visual acuity in the logarithm of minimum angle of resolution (logMAR), leading to total blindness in fewer eyes and intraoperative and postoperative complications in others than in the control group (P = 0.015, 0.002, 0.007, 0.023, and 0.008, respectively). The follow-up duration (mean +/- SD) from trabeculectomy surgery was 179 +/- 97 days (range, 93-315 days) and 196 +/- 108 days (range, 92-370 days) in the ivBe and control group (P = 0.324). Intravitreal bevacizumab might be a useful adjunctive therapy in addition to trabeculectomy in the management of NVG. Large controlled randomized studies for treatment of bevacizumab on NVG are warranted.
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