Abstract
Purpose
To report on long-term outcomes of mitomycin C (MMC)-augmented needle revision of failing deep sclerectomy (DS) blebs.
Methods
Retrospective database search of all needle revisions with MMC for DS blebs between 2002 and 2008 was conducted. Sixty-six eyes of 66 patients were included in the study. Subconjunctival MMC 0.01–0.02 mg was injected 15 min before needle revision. Complete success was defined as intraocular pressure ≤ 18 mmHg or 20 % decrease from baseline with no glaucoma medications or further surgical procedures. Partial success was based on the same criteria, but with medications.
Results
Mean follow-up after index needle revision was 67.8 ± 24.8 months (range 1–10 years). The mean number of needle revisions was 1.6 ± 0.8 (range 1–4). Two or more procedures were done in 31 eyes (47.0 %). Mean preoperative intraocular pressure was 23.2 ± 6.9 mmHg. Complete and partial success rates were 64 % and 71 % at 1 year, 57 % and 68 % at 3 years, and 40 % and 58 % at 5 years after surgery, respectively. Early needle revision, within 6 months of index surgery, was significantly associated with failure, both on uni- and multivariate tests. Significant complications included delayed hypotony in five eyes (7.6 %), delayed bleb leak in two eyes (3.0 %), endophthalmitis in one eye (1.5 %), and corneal oedema in two eyes (3.0 %).
Conclusions
Needle revision with subconjunctival MMC may successfully lower the intraocular pressure in eyes with a failing DS bleb in the long term. Complications known to be associated with trabeculectomy and MMC were anticipated and observed in our DS group.
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Koukkoulli, A., Musa, F. & Anand, N. Long-term outcomes of needle revision of failing deep sclerectomy blebs. Graefes Arch Clin Exp Ophthalmol 253, 99–106 (2015). https://doi.org/10.1007/s00417-014-2810-4
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DOI: https://doi.org/10.1007/s00417-014-2810-4