Dataset Information

Vigabatrin retinal toxicity in children with infantile spasms: An observational cohort study.

ABSTRACT:

Objectives

To determine time to vigabatrin (VGB, Sabril; Lundbeck, Deerfield, IL) induced retinal damage in children with infantile spasms (IS) and to identify risk factors for VGB-induced retinal damage (VGB-RD).

Methods

Observational cohort study including 146 participants (68 female, 81 male) with IS, an age-specific epilepsy syndrome of early infancy, treated with VGB. Participants ranged from 3 to 34.9 months of age (median 7.6 months). The median duration of VGB treatment was 16 months (range 4.6-78.5 months). Electroretinograms (ERGs) were performed according to the Standards of the International Society for Clinical Electrophysiology of Vision. Inclusion required baseline (pre-VGB or within 4 weeks of starting VGB treatment) and at least 2 follow-up ERGs. Significant reduction from baseline of the 30-Hz ERG flicker amplitude on 2 consecutive visits identified VGB-RD. Kaplan-Meier survival analyses depicted the effect of duration of VGB on VGB-RD.

Results

These data represent the largest survival analysis of children treated with VGB who did not succumb to retinal toxicity during the study. Thirty of the 146 participants (21%) showed VGB-RD. The ERG amplitude reduced with duration of VGB treatment (p = 0.0004) with no recovery after VGB cessation. With 6 and 12 months of VGB treatment, 5.3% and 13.3%, respectively, developed VGB-RD. There was neither effect of age of initiation of VGB treatment nor sex of the child on survival statistics and no significant effect of cumulative dosage on the occurrence of VGB-RD.

Conclusions

Minimizing VGB treatment to 6 months will reduce the prevalence of VGB-RD in patients with IS.

SUBMITTER: Westall CA

PROVIDER: S-EPMC4277676 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Vigabatrin retinal toxicity in children with infantile spasms: An observational cohort study.

Westall Carol A CA Wright Tom T Cortese Filomeno F Kumarappah Ananthavalli A Snead O Carter OC Buncic Joseph R JR

Neurology 20141107 24

<h4>Objectives</h4>To determine time to vigabatrin (VGB, Sabril; Lundbeck, Deerfield, IL) induced retinal damage in children with infantile spasms (IS) and to identify risk factors for VGB-induced retinal damage (VGB-RD).<h4>Methods</h4>Observational cohort study including 146 participants (68 female, 81 male) with IS, an age-specific epilepsy syndrome of early infancy, treated with VGB. Participants ranged from 3 to 34.9 months of age (median 7.6 months). The median duration of VGB treatment wa ...[more]

PMID: 25381295

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Dataset Information

Vigabatrin retinal toxicity in children with infantile spasms: An observational cohort study.

Objectives

Methods

Results

Conclusions

Publications

Vigabatrin retinal toxicity in children with infantile spasms: An observational cohort study.

Similar Datasets

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