360-degree suture trabeculotomy ab interno to treat open-angle glaucoma: 2-year outcomes
Received 1 January 2018
Accepted for publication 27 March 2018
Published 17 May 2018 Volume 2018:12 Pages 915—923
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 4
Editor who approved publication: Dr Scott Fraser
Tomoki Sato,1 Takahiro Kawaji,1 Akira Hirata,2 Takanori Mizoguchi3
1Sato Eye and Internal Medicine Clinic, Arao City, Kumamoto, Japan; 2Hayashi Eye Hospital, Hakata-ku, Fukuoka, Japan; 3Mizoguchi Eye Clinic, Sasebo, Nagasaki, Japan
Purpose: The purpose of this study was to evaluate the efficacy of 360-degree suture trabeculotomy (360S-LOT) ab interno for treating open-angle glaucoma (OAG). Risk factors of surgical failure were examined.
Patients and methods: 360S-LOT ab interno alone was performed for patients with uncontrolled OAG, and combined 360S-LOT ab interno/phacoemulsification was performed for patients with controlled OAG with a visually significant cataract between March 2014 and September 2015 at a single center. The patients were prospectively followed for 2 years. The main outcome measures included 2-year intraocular pressure (IOP), number of anti-glaucoma medications used, postoperative complications, and predictive factors of surgical failure. Kaplan–Meier analysis was performed, with surgical success (with or without medication use) defined as postoperative IOP ≤15 mmHg and IOP reduction ≥20% (criterion A) or IOP ≤12 mmHg and IOP reduction ≥30% (criterion B). Predictive factors were evaluated using Cox proportional hazard ratios.
Results: A total of 64 eyes of 64 patients were included, and 50 (78%) eyes of 64 eyes underwent a phacoemulsification combination procedure. Surgery significantly reduced IOP from 18.4 ± 2.9 mmHg before surgery to 13.4 ± 3.0 mmHg after surgery (P < 0.001). Patients used an average of 1.8 ± 1.5 medications before surgery and 1.3 ± 1.5 medications after surgery (P = 0.101). No serious postoperative complications were observed. The probability of surgical success was 49.2% and 16.0% using criteria A and B, respectively. No risk factors of surgical failure were identified.
Conclusion: The 360S-LOT ab interno procedure is a favorable option for treating eyes with mild or moderate OAG.
Keywords: 360-degree suture trabeculotomy ab interno, open-angle glaucoma, minimally invasive glaucoma surgery, phacoemulsification
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.Download Article [PDF] View Full Text [HTML][Machine readable]