Gonioscopy-assisted transluminal trabeculotomy (GATT) outcomes in eyes with open-angle glaucoma resistant to maximum treatment

• Published in: Arquivos brasileiros de oftalmologia 2021
• Main Authors: Faria, Bruno M. de, Daga, Fábio B., Rebouças-Santos, Vespasiano, Araújo, Rafael B. de, Matos Neto, Carlos, Jacobina, Jéssica S., Faria, Marco A. R. de
• Format: Article
• Language: Portuguese
• Subjects: OPHTHALMOLOGY
• ISSN: 1678-2925
• DOI: 10.5935/0004-2749.20210083

ABSTRACT Purpose: To report the initial 2 years’ learning curve on gonioscopy-assisted transluminal trabeculotomy performed using the thermally blunted suture technique and review the factors that could potentially affect the outcome. Methods: This retrospective study evaluated 100 eyes from 89 participants with glaucoma resistant to maximum clinical treatment, which was defined as having an intraocular pressure >21 mmHg in addition to three or four different hypotensive drugs. Intraocular pressure values at baseline, 1 week, and at 1, 2, 3, 6, 12, and 24 months of follow-up and details regarding the need of antiglaucoma medication and further glaucoma surgery were recorded. Eyes that required further surgical intervention for intraocular pressure control were considered as failure. Results: A total of 51 eyes were subjected to isolated gonioscopy-assisted transluminal trabeculotomy, and 49 eyes were subjected to gonioscopy-assisted transluminal trabeculotomy + cataract extraction at the same surgical time. A statistically significant difference was observed between overall mean follow-up intraocular pressure and mean preoperative intraocular pressure (p