Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients

Abstract Background There is no consensus and few reports as to the surgical management of encapsulated Ahmed glaucoma drainage devices (GDD) which no longer control intraocular pressure (IOP), especially within the pediatric population. The purpose of this study was to report outcomes of exchanging...

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Main Authors: Adam Jacobson, Brenda L. Bohnsack
Format: Article
Language:English
Published: BMC 2023-07-01
Series:BMC Ophthalmology
Subjects:
Online Access:https://doi.org/10.1186/s12886-023-03074-1
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author Adam Jacobson
Brenda L. Bohnsack
author_facet Adam Jacobson
Brenda L. Bohnsack
author_sort Adam Jacobson
collection DOAJ
description Abstract Background There is no consensus and few reports as to the surgical management of encapsulated Ahmed glaucoma drainage devices (GDD) which no longer control intraocular pressure (IOP), especially within the pediatric population. The purpose of this study was to report outcomes of exchanging the Ahmed GDD for a Baerveldt GDD in children with refractory glaucoma. Methods Retrospective review of children (< 18yrs) who underwent removal of Ahmed FP7 and placement of Baerveldt 350 (2016–2021) with ≥ 3-month follow-up. Surgical success was defined as IOP 5–20 mmHg without additional IOP-lowering surgeries or visually devastating complications. Outcomes included change in best-corrected visual acuity (BCVA), intraocular pressure (IOP), and number of glaucoma medications. Results Twelve eyes of 10 patients underwent superotemporal Ahmed FP7 to Baerveldt 350 GDD exchange at 8.8 ± 3.6 years. Time to Ahmed failure was 2.7 ± 1.9 years with 1-, 3-, and 5-year survival rates of 83% with a 95% CI[48,95], 33% with a 95% CI[10, 59], and 8% with a 95% CI[0, 30]. At final follow-up (2.5 ± 1.8 years), success rate for Baerveldt 350 GDDs was 75% (9 of 12 eyes) with 1 and 3-yr survival rates of 100% and 71% with 95% CI[25,92], respectively. IOP (24.1 ± 2.9 vs. 14.9 ± 3.1 mmHg) and number of glaucoma medications (3.7 ± 0.7 vs. 2.7 ± 1.1) were significantly decreased (p < 0.004). BCVA remained stable. Two eyes required cycloablation and 1 eye developed a retinal detachment. Conclusions Ahmed removal with Baerveldt placement can improve IOP control with fewer medications in cases of refractory pediatric glaucoma. However, more eyes with greater follow-up are required to determine long-term outcomes.
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spelling doaj.art-03abfebc7011484787dd4cfe8b76df102023-07-16T11:12:37ZengBMCBMC Ophthalmology1471-24152023-07-012311810.1186/s12886-023-03074-1Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patientsAdam Jacobson0Brenda L. Bohnsack1Department of Ophthalmology and Visual Sciences, University of MichiganDepartment of Ophthalmology, Northwestern University Feinberg School of MedicineAbstract Background There is no consensus and few reports as to the surgical management of encapsulated Ahmed glaucoma drainage devices (GDD) which no longer control intraocular pressure (IOP), especially within the pediatric population. The purpose of this study was to report outcomes of exchanging the Ahmed GDD for a Baerveldt GDD in children with refractory glaucoma. Methods Retrospective review of children (< 18yrs) who underwent removal of Ahmed FP7 and placement of Baerveldt 350 (2016–2021) with ≥ 3-month follow-up. Surgical success was defined as IOP 5–20 mmHg without additional IOP-lowering surgeries or visually devastating complications. Outcomes included change in best-corrected visual acuity (BCVA), intraocular pressure (IOP), and number of glaucoma medications. Results Twelve eyes of 10 patients underwent superotemporal Ahmed FP7 to Baerveldt 350 GDD exchange at 8.8 ± 3.6 years. Time to Ahmed failure was 2.7 ± 1.9 years with 1-, 3-, and 5-year survival rates of 83% with a 95% CI[48,95], 33% with a 95% CI[10, 59], and 8% with a 95% CI[0, 30]. At final follow-up (2.5 ± 1.8 years), success rate for Baerveldt 350 GDDs was 75% (9 of 12 eyes) with 1 and 3-yr survival rates of 100% and 71% with 95% CI[25,92], respectively. IOP (24.1 ± 2.9 vs. 14.9 ± 3.1 mmHg) and number of glaucoma medications (3.7 ± 0.7 vs. 2.7 ± 1.1) were significantly decreased (p < 0.004). BCVA remained stable. Two eyes required cycloablation and 1 eye developed a retinal detachment. Conclusions Ahmed removal with Baerveldt placement can improve IOP control with fewer medications in cases of refractory pediatric glaucoma. However, more eyes with greater follow-up are required to determine long-term outcomes.https://doi.org/10.1186/s12886-023-03074-1Childhood glaucomaGlaucoma drainage deviceAhmed implantBaerveldt implant
spellingShingle Adam Jacobson
Brenda L. Bohnsack
Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients
BMC Ophthalmology
Childhood glaucoma
Glaucoma drainage device
Ahmed implant
Baerveldt implant
title Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients
title_full Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients
title_fullStr Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients
title_full_unstemmed Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients
title_short Ahmed to Baerveldt glaucoma drainage device exchange in pediatric patients
title_sort ahmed to baerveldt glaucoma drainage device exchange in pediatric patients
topic Childhood glaucoma
Glaucoma drainage device
Ahmed implant
Baerveldt implant
url https://doi.org/10.1186/s12886-023-03074-1
work_keys_str_mv AT adamjacobson ahmedtobaerveldtglaucomadrainagedeviceexchangeinpediatricpatients
AT brendalbohnsack ahmedtobaerveldtglaucomadrainagedeviceexchangeinpediatricpatients