Outcomes of Anterior Chamber, Sulcus, and Pars Plana Glaucoma Drainage Device Placement in Glaucoma Patients

Author:

Samuel Sandy1,Chang Enchi K.1,Gupta Sanchay1,Chachanidze Marika2ORCID,Neeson Cameron E.2,Miller John B.1,Chang Ta Chen3ORCID,Solá-Del Valle David A.1ORCID

Affiliation:

1. Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA

2. Massachusetts Eye and Ear, Boston, MA, USA

3. Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA

Abstract

Purpose. To assess outcomes of anterior chamber (AC), sulcus, and pars plana (PP) glaucoma drainage device (GDD) placement in glaucoma patients. Patients and Methods. Retrospective evaluation of glaucoma patients who underwent GDD insertion in the AC, sulcus, or PP at Massachusetts Eye and Ear between November 2016 and May 2021. Patients who received AC, sulcus, and pars plana tubes were selected using simple random sampling, and the first 40 patients meeting inclusion criteria were analyzed. Main outcome measures were cumulative success probabilities from Kaplan-Meier (KM) analyses, intraocular pressure (IOP), medication burden, and complication rates. Results. The PP group had a larger proportion of Ahmed GDDs and was younger on average with less severe glaucoma compared to patients with AC or sulcus tubes. The PP group had a higher proportion of mixed-mechanism glaucoma and lower proportion of primary open-angle glaucoma. With success defined as IOP reduction ≥20% and 5 < IOP ≤ 21 mm Hg, the Kaplan-Meier cumulative success probabilities for all three GDD locations were not significantly different. No significant differences were found in complication rates between all groups after 3 months. Patients with PP GDD had significantly lower medication burden than those with AC or sulcus GDDs up to 1.5 years postoperatively (1.7 ± 1.1, 3.0 ± 1.4, and 2.8 ± 1.2 for PP, AC, and sulcus, respectively; P = 0.017 ). Conclusion. PP GDDs may be more effective in lowering medication burden than AC or sulcus tubes without compromising long-term safety.

Publisher

Hindawi Limited

Subject

Ophthalmology

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