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Mitomycin-C needle bleb revision in congenital glaucoma
Thanaa Helmy Mohamed Elsayed1, Tamer Mohamed El-Raggal
1Department of Ophthalmology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Middle East African Journal of Ophthalmology
|December 25, 2010
Summary
Mitomycin-C (MMC) augmented needling effectively revives failed glaucoma surgery in children. This procedure reduces intraocular pressure (IOP) and preserves conjunctiva for future interventions.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Pediatric Ophthalmology
Background:
- Congenital glaucoma often requires surgical intervention like trabeculectomy.
- Bleb failure is a common complication following trabeculectomy, leading to elevated intraocular pressure (IOP).
- Revising failed filtration surgery is crucial for managing refractory glaucoma in pediatric patients.
Purpose of the Study:
- To evaluate the efficacy and safety of mitomycin-C (MMC) augmented needling for failed blebs after trabeculectomy in congenital glaucoma.
- To assess the impact of MMC-augmented needling on intraocular pressure (IOP) and conjunctival preservation.
Main Methods:
- A retrospective study involving 30 eyes of 25 patients with congenital glaucoma and failed bleb after trabeculectomy.
- Needling procedure performed under general anesthesia with subconjunctival injection of MMC and lidocaine.
- Dissection of subconjunctival fibrosis using a 30-gauge needle to restore aqueous outflow.
Main Results:
- Mean IOP decreased significantly from 26.9 mmHg pre-operatively to 15.63 mmHg at follow-up (6-20 months).
- One or two needling revisions were performed in 73.3% and 26.7% of eyes, respectively.
- Complications included subconjunctival hemorrhage, bleb leak, choroidal detachment, and hyphema.
Conclusions:
- Mitomycin-C (MMC) augmented needle bleb revision is an effective method to salvage failed filtration surgery in congenital glaucoma.
- The procedure successfully reduces IOP and preserves conjunctival tissue for potential future surgeries.
- This technique offers a viable option for managing bleb failure in pediatric glaucoma patients.
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