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  • Title: Outcomes of Circumferential Trabeculotomy and Converted 180-Degree Traditional Trabeculotomy in Patients With Neonatal-onset Primary Congenital Glaucoma.
    Author: Aktas Z, Ucgul AY, Atalay HT.
    Journal: J Glaucoma; 2020 Sep; 29(9):813-818. PubMed ID: 32459688.
    Abstract:
    UNLABELLED: PRéCIS:: The present study demonstrates that the surgical success rate of circumferential trabeculotomy is 64.7% according to target intraocular pressure (IOP) ≤21 mm Hg and ≥30% reduction from baseline in patients with neonatal-onset primary congenital glaucoma (PCG), with an average follow-up of 35.1 months. PURPOSE: The aim of the study was to evaluate the surgical success rate and applicability of circumferential trabeculotomy compared with converted traditional trabeculotomy in patients with neonatal-onset PCG in Turkey. PATIENTS AND METHODS: A retrospective study enrolled 42 eyes of 42 patients with an average age of 34.0±6.7 (14 to 59) days at the time of the surgery, who underwent 5/0 prolene suture-assisted circumferential trabeculotomy or rigid probe-assisted traditional trabeculotomy for the treatment of neonatal-onset PCG. IOP at baseline, 1st, 2nd, 3rd, 6th, 9th, 12th, 24th, and 36th months of follow-up, need of glaucoma eye drop, need of further glaucoma surgery, cup to disc ratio, axial length, corneal diameters, and presence of corneal clouding were recorded. Surgical success was defined as IOP <21 mm Hg and ≥30% reduction from baseline without any further glaucoma surgery. RESULTS: Seventeen eyes underwent circumferential trabeculotomy and 25 eyes with a failure in completing circumferential trabeculotomy underwent traditional trabeculotomy. The applicability rate of circumferential trabeculotomy was 40.4%. The mean preoperative IOP value was 33.2±7.6 mm Hg. The average follow-up time was 35.1±21.7 (12 to 95) months. Surgical success rates of circumferential trabeculotomy at the first, second, and third year of follow-up were 70.6%, 64.7%, and 64.7%, respectively. Surgical success rates of traditional trabeculotomy at the first, second, and third year of follow-up were 60%, 48%, and 44%, respectively. CONCLUSIONS: Circumferential trabeculotomy seems to be a safer and more successful procedure than traditional trabeculotomy for the treatment of neonatal-onset PCG. Unlike the traditional procedure, the IOP-lowering effect of circumferential trabeculotomy could be maintained up to ~36 months.
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