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Long-term clinical outcomes of Ahmed valve implantation in patients with refractory glaucoma.

Authors
 Chang Kyu Lee  ;  Kyoung Tak Ma  ;  Young Jae Hong  ;  Chan Yun Kim 
Citation
 PLoS One, Vol.12(11) : e0187533, 2017 
Journal Title
 PLoS One 
Issue Date
2017
MeSH
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Female ; Glaucoma/physiopathology ; Glaucoma/surgery* ; Glaucoma Drainage Implants/standards* ; Humans ; Infant ; Intraocular Pressure ; Male ; Middle Aged ; Treatment Outcome* ; Young Adult
Abstract
PURPOSE: To evaluate the long-term efficacy of intraocular pressure (IOP) reduction and complications of Ahmed Glaucoma Valve (AGV) implantation in patients with refractory glaucoma. DESIGN: Retrospective study. SUBJECTS: The study involved 302 refractory glaucoma patients who underwent AGV implantation and had a minimum follow-up of 6 months between March 1995 and December 2013. METHODS: An operation was defined as successful when (1) the postoperative IOP remained between 5 and 21 mmHg and was reduced 30% compared to the baseline IOP with or without medication, (2) there was no loss of light perception or vision-threatening severe complications, and (3) no additional filtering or aqueous drainage surgery was required. Clinical records were reviewed. MAIN OUTCOME MEASURES: IOP, anti-glaucoma medications, and complications. RESULTS: The mean follow-up period was 62.25 months (range, 6 to 190 months). The cumulative probability of success was 89% at 6 months, 81% at 1 year, 66% at 3 years, 44% at 10 years, and 26% at 15 years. IOP was reduced from a mean of 32.2 ± 10.5 mmHg to 18.6 ± 9.1 mmHg at 1 month, 15.2 ± 7.0 mmHg at 6 months, and 14.2 ± 3.5 mmHg at 15 years. Surgical failures were significantly increased when preoperative IOP was high, and when severe complications occurred after AGV implantation (P < 0.05). CONCLUSION: AGV implantation was successful for IOP control in patients with refractive glaucoma in the long term. However, the success rate of surgery decreased over time. Preoperative high IOP and severe complications related to the operation were significant risk factors for failure.
Files in This Item:
T201705664.pdf Download
DOI
10.1371/journal.pone.0187533
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chan Yun(김찬윤) ORCID logo https://orcid.org/0000-0002-8373-9999
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/161730
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