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International Ophthalmology

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01-01-2021 | Glaucoma | Original Paper

The role of primary needle revision after Ahmed glaucoma valve (AGV) implantation

Authors: Maryam Yadgari, Kiana Hassanpour, Fatemeh Vafaei

Published in: International Ophthalmology | Issue 1/2021

Abstract

Purpose

To evaluate the efficacy and safety of primary needle revision after Ahmed Glaucoma Valve (AGV) implantation in comparison with glaucoma medication use.

Methods

In this interventional case series, 23 eyes of 23 patients who underwent AGV implantation were enrolled. Needle revision was performed when the intraocular pressure was higher than the target pressure before glaucoma medications. Using a 30-gauge needle, the Tenon’s capsule over the plate was incised and the bleb was reformed. Patients were examined on a postoperative day one, weekly (for four weeks), and every 1–3 months. Two criteria were used to define cumulative success as a minimum 20% reduction in IOP and 5 < IOP ≤ 21 mmHg (Criteria A) or 5 < IOP ≤ 18 mmHg (Criteria B) without (Complete success) or with (Qualified success) glaucoma medication.

Results

In this pilot study, we enrolled 23 patients with a mean age of 53.8 ± 12.4 years (25–78 years) who underwent AGV implantation and a one-year follow-up period. The mean number of primary needle revision was 2.2 ± 1.6 (1–6). One year postoperatively, the cumulative success rate was 91.4% and 86.9% based on Criteria A and B, respectively. The average of preoperative IOP was 28.26 ± 8.86 mmHg (range 15–46 mmHg), reaching 13.78 ± 3.54 mmHg (range 8–20) at the end of the one-year follow-up. (P < 0.001) The mean preoperative medication significantly decreased from a median of 4 (range 3–4) at baseline to 2 (range 1–4) after the one-year follow-up (P < 0.001). One patient experienced leakage over the plate, which was successfully treated via conservative management.

Conclusion

This pilot study showed that primary needle revision is a safe and effective method for controlling IOP after AGV implantation with a lower need for medication.

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Title: The role of primary needle revision after Ahmed glaucoma valve (AGV) implantation
Authors: Maryam Yadgari
Kiana Hassanpour
Fatemeh Vafaei
Publication date: 01-01-2021
Publisher: Springer Netherlands
Keywords: Glaucoma
Trabeculectomy
Published in: International Ophthalmology / Issue 1/2021
Print ISSN: 0165-5701
Electronic ISSN: 1573-2630
DOI: https://doi.org/10.1007/s10792-020-01556-5

Keynote webinar | Spotlight on medication adherence

Springer Medicine

The role of primary needle revision after Ahmed glaucoma valve (AGV) implantation

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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