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Abstract #78043 Published in IGR 19-4
Catheter-assisted 360-Degree Trabeculotomy for Congenital Glaucoma
Toshev AP; Much MM; Klink T; Pfeiffer N; Hoffmann EM; Grehn FJournal of Glaucoma 2018; 27: 572-577
PURPOSE: To determine feasibility, efficacy, and safety of ab externo 360-degree trabeculotomy with illuminated microcatheter for congenital glaucoma. PATIENTS AND METHODS: The postoperative results of 36 eyes in 23 consecutive patients who underwent 360-degree trabeculotomy for primary congenital glaucoma (PCG) or secondary congenital glaucoma using an illuminated microcatheter were retrospectively analyzed. Success criteria were defined as intraocular pressure (IOP) ≤18 mm Hg without (complete success) and with medication (qualified success). RESULTS: In all previously nonoperated eyes with PCG (group 1), the Schlemm's canal was identified and circumferentially cannulated for 360-degree trabeculotomy. In group 2 comprising of operated eyes with PCG and eyes with secondary congenital glaucoma, the performance of 360-degree trabeculotomy failed in 4 eyes because of the Schlemm's canal occlusion or high tissue resistance of the trabecular meshwork. Mean preoperative IOP was 28.6±5 and 29.6±9 mm Hg with 7 of 20 eyes and 7 of 9 eyes receiving IOP-lowering medication in group 1 and group 2, respectively. Mean postoperative IOP was reduced to 13±2.7 and 20.2±7.1 mm Hg after a mean follow-up of 15.3 and 12.7 months with 4 of 20 eyes and 5 of 9 eyes receiving medication in group 1 and group 2, respectively. Four eyes underwent further surgery. Complete success was achieved in 16 and 3 eyes, whereas qualified success was achieved in 20 and 4 eyes from group 1 and group 2, respectively. In all eyes, a mild to moderate postoperative hyphema was observed. CONCLUSIONS: Ab externo catheter-assisted 360-degree trabeculotomy controls IOP in a majority of patients with congenital glaucoma after a single operation. Moderate blood reflux in the anterior chamber is considered as a common postoperative finding. We did not observe hypotony or other severe complications in our series. In 1 patient, we experienced catheter misdirection in an eye that had previously undergone trabeculotomy.
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Classification:
9.1.1 Congenital glaucoma, Buphthalmos (Part of: 9 Clinical forms of glaucomas > 9.1 Developmental glaucomas)
12.9 Trabeculotomy, goniotomy (Part of: 12 Surgical treatment)