Relationship between Glaucoma Drainage Device Size and Intraocular Pressure Control: Does Size Matter?

Rodgers, Cooper D.; Meyer, Andrew J.; Sherwood, Mark B.

doi:10.5005/jp-journals-10008-1212

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…The total thickness of SGDD is 0.5 mm. The area of the Susanna silicone plate is 200 mm 2 , which is in accordance with the suggested optimal surface area 6,12. The tube has an internal diameter of 230 μm and an external diameter of 530 μm.…”

Section: Methodssupporting

confidence: 76%

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Efficacy and Safety of the Susanna Glaucoma Drainage Device After 1 Year of Follow-up

Susanna

et al. 2021

Journal of Glaucoma

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Precis: This study found a rate of failure of 13.6% of the new Susanna Glaucoma Drainage Device (SGDD) after 1 year of follow-up. Severe complications occurred in 1 patient (4.5%). Purpose:The purpose of this study was to determine the success and complications rates of the SGDD implant in refractory glaucoma.Patients and Methods: This is a retrospective study. Medical records from all consecutive refractory glaucoma patients (failed trabeculectomies with the use of adjunctive mitomycin) followed in a private clinical practice were included in the study. All patients had undergone SGDD implant surgery from September 2016 to July 2019 were included. All surgeries were done by the same surgeon (R.S.). Primary outcome was surgical failure, defined as intraocular pressure (IOP) > 18 mm Hg and/or < 20% IOP reduction from baseline, IOP < 5 mm Hg, reoperation for glaucoma, need of implant removal or loss of light perception vision. Secondary outcomes included mean IOP, use of supplemental medical therapy, and complications.Results: In all, 22 eyes were analyzed. Mean patient age was 63 ± 15 years (range: 27 to 87 y). Mean IOP decreased from 23 ± 7 to 11 ± 8 mm Hg (P < 0.001, paired t test) at an average of 18 ± 9 months after the tube implant. The mean SD number of glaucoma medications was reduced from 3.3 ± 1 to 1.5 ± 1.2 at the last postoperative visit (P < 0.01, paired t test). No early postoperative complications occurred. There was 1 case of late persistent hypotony in a patient with previous endocyclophotocoagulation that was solved with tube ligature with silk 8-0. Failure because of high IOP occurred in 2 cases. There was no extrusion or erosion of the tube and the plate. Conclusion:The SGDD presented a 13.6% failure rate (86.4% success rate) with very few complications, being an efficient and safe alternative for refractory glaucoma.

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Section: Methodssupporting

confidence: 76%

“…The area of the Susanna silicone plate is 200 mm 2 , which is in accordance with the suggested optimal surface area. 6,12 The tube has an internal diameter of 230 μm and an external diameter of 530 μm. A thinner tube is expected to reduce the likelihood of exposure and the risk of touching the corneal endothelium, iris, or lens.…”

Section: Devicementioning

confidence: 99%

Efficacy and Safety of the Susanna Glaucoma Drainage Device After 1 Year of Follow-up

Susanna

et al. 2021

Journal of Glaucoma

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“… 4 When comparing different non-valved tubes, larger endplates may have a theoretical advantage of achieving lower IOPs, but there is no consensus in the literature. 10 , 11 Herein, via an illustrative case example, we propose that eyes with a prior BGI-250 requiring additional IOP-lowering may benefit from a same-quadrant tube exchange for a BGI-350, with the goal of avoiding or delaying a second tube. A surgical video demonstrating the steps of the surgical procedure is included in the supplemental materials.…”

Section: Introductionmentioning

confidence: 99%

Same-quadrant Baerveldt Glaucoma Implant-250 to Baerveldt Glaucoma Implant-350 exchange

Kim,

Wang,

Qiu

2024

American Journal of Ophthalmology Case Reports

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“…Several retrospective studies have compared the various Baerveldt plate sizes (200, 250, 350, and 500 mm 2 ),10 Ahmed S2 with Baerveldt 250 (B250) GDDs,11 B250 with B350 GDDs,12 and Molteno 230/245 with B250 and B350 GDDs 13. With the finding that bigger is not necessarily better in terms of clinical outcomes, many surgeons now favor the smaller Baerveldt GDDs for greater ease of placement and potentially lower incidence of postoperative diplopia 10,12–15. The purpose of the current study is to compare the surgical and clinical success rates in patients with GDDs that are now three of the most commonly used GDDs, the FP7, the B250, and the B350.…”

mentioning

confidence: 99%

Comparing Surgical and Clinical Success Rates of Ahmed FP7, and Baerveldt 250 and Baerveldt 350 Glaucoma Drainage Devices

Kilgore¹,

Grosinger²,

Liu³

et al. 2022

Journal of Glaucoma

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Précis: Surgical and clinical success rates were similar among Ahmed FP7, and Baerveldt 250 and 350 glaucoma drainage devices at three years.Purpose: To compare rates of surgical and clinical success in patients with Ahmed FP7 (FP7), Baerveldt 250 (B250), or Baerveldt 350 (B350) glaucoma drainage devices (GDDs).Design: A retrospective cohort study.Methods: A total of 157 eyes of 129 adult patients with FP7, B250, B350 GDDs, and 190 eyes of 99 medically controlled glaucoma patients were enrolled at a tertiary care institution from August 2017 through July 2019. They were followed through April 2020. The main outcome measures included surgical and clinical failure. Surgical failure was defined as intraocular pressure (IOP) outside 5-21 mm Hg, IOP reduced <20% below baseline, additional glaucoma surgery, GDD removal, or no light perception. Eyes that did not meet their goal IOP ranges or required secondary glaucoma interventions were deemed clinical failures.Results: A total of 43 (12.4%) FP7, 36 (10.4%) B250, 78 (22.5%) B350, and 190 (54.8%) medically treated control eyes were enrolled. By the postoperative year 3 visit, 10 (23.2%) FP7, 11 (30.6%) B250, and 32 (41.0%) B350 eyes had met a surgical failure criterion (P = 0.127). There were no significant differences in the numbers of eyes meeting their IOP target ranges (P = 0.510), and rates of secondary glaucoma surgeries (P = 0.270). Overall clinical success was attained among 83.3% FP7, 81.8% B250, and 68.0% B350 eyes (P = 0.447). Conclusions:The GDD groups were similar in their rates of success, based on both the surgical and clinical success definitions.

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Relationship between Glaucoma Drainage Device Size and Intraocular Pressure Control: Does Size Matter?

Cited by 5 publications

References 11 publications

Efficacy and Safety of the Susanna Glaucoma Drainage Device After 1 Year of Follow-up

Efficacy and Safety of the Susanna Glaucoma Drainage Device After 1 Year of Follow-up

Same-quadrant Baerveldt Glaucoma Implant-250 to Baerveldt Glaucoma Implant-350 exchange

Comparing Surgical and Clinical Success Rates of Ahmed FP7, and Baerveldt 250 and Baerveldt 350 Glaucoma Drainage Devices

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