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Delphine Rivier, Ciara Bergin, Eamon Sharkawi; Evaluation Of "Safe" Trabeculectomy Versus "Safe" Phacotrabeculectomy. Invest. Ophthalmol. Vis. Sci. 2011;52(14):631.
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To evaluate the safety and efficacy of "safe" trabeculectomy (ST) versus "safe" phacotrabeculectomy (SPT).
This study included 72 eyes with medically uncontrolled chronic glaucoma who underwent fornix based trabeculectomy with adjustable/releasable sutures and intraoperative mitomycin C ± phacoemulsification. 36 eyes underwent SPT and 36 eyes had ST. There was no difference between groups for age, intraocular pressure (IOP), diagnosis and gender. Subconjunctival antimetabolite injections and bleb needlings were administered according to bleb vascularity and IOP trends. Main outcome measures were: success rate (definition: IOP≤21mmHg and 20% IOP reduction); number of antimetabolite injections; bleb needlings; glaucoma medications and complications.
Mean age (SPT vs ST) was 72.7±12.1 years vs 72.3±12.9 years; p=0.44. Mean preoperative IOP was 24.5±8.8 mmHg vs 24.3±8.2 mmHg; p=0.46. Postoperative IOP was 13.1±4.5mmHg vs 12.4±3.2; p=0.24. Ninety percent of both groups required at least one suture removal. There was no statistically significant difference in success rate between groups, 80% vs 83%; number of eyes requiring antimetabolite injections was 22 eyes (mean 3.2 per eye) vs 23 eyes (mean 2.6 per eye, p=0.24); bleb needlings was performed in 16 eyes (mean 2.5 per eye) vs in 11 eyes (mean 2.0 per eye, p=0.15). The number of eyes restarting glaucoma medications was 5 vs 4. Minor complications were infrequent in both groups, 9 vs 10 eyes.
The success and complications rates were similar between groups. The number of postoperative interventions required was slightly greater in the SPT group (not statistically significant). SPT is a safe procedure for patients with coexistent glaucoma and cataract and produces similar IOP-lowering to safe trabeculectomy.
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