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. 2000;1999(2):CD001693.
doi: 10.1002/14651858.CD001693.

Peripheral retinal ablation for threshold retinopathy of prematurity in preterm infants

C C Andersen  1 , D L Phelps
Affiliations

Peripheral retinal ablation for threshold retinopathy of prematurity in preterm infants

C C Andersen et al. Cochrane Database Syst Rev. 2000.

Abstract

Background: This section is under preparation and will be included in the next issue.

Objectives: In premature infants with threshold retinopathy of prematurity (ROP) does peripheral retinal ablation, by any means, reduce the incidence of adverse ophthalmic outcome?

Search strategy: The standard search strategy of the Cochrane Neonatal Review Group was used. This included a search of the Cochrane Neonatal Group Register of Clinical Trials, MEDLINE, EMBASE, previous reviews including cross references, abstracts from pediatric and ophthalmologic meetings, letters and expert informants. Search terms included "Retinopathy of Prematurity" [MeSH Terms], "Retrolental Fibroplasia" [All Fields] and "Lightcoagulation" [All Fields] or "Cryosurgery" [All Fields]. In addition, a personal bibliographic database was used as a cross-reference.

Selection criteria: All trials in human premature infants with threshold ROP utilizing random or quasi random allocation to either peripheral retinal ablation of the avascular retina, by any means, or concurrent control group with independent outcome assessment were initially selected for review. Following methodologic review, only studies using random allocation were selected for data extraction.

Data collection and analysis: Relevance and validity were assessed by the two authors and consensus reached. Each author extracted clinical outcomes from valid reports independently. Data analysis was conducted according to the standards of the Cochrane Neonatal Review Group.

Main results: Two randomised trials were identified. Data from these studies show that peripheral retinal ablation reduces the risk of (1) early unfavorable retinal structure from 47. 9% to 28.1% (absolute risk reduction 19.8% [95% CI 27.9 - 11.8%]), (2) unfavorable retinal structure in early childhood from 44.3% to 26.3% (absolute risk reduction 18% [95% CI 27.0 - 9.1%]) and (3) unfavorable visual acuity in early childhood from 63% to 50.6% (absolute risk reduction 12.2% [95% CI 21.2 - 3.1]). In addition, visual fields in sighted eyes were slightly smaller in the treated (51.3 degrees +/- 11.8 degrees ) group as compared to the control (58.2 degrees +/- 14.5 degrees ) group.

Reviewer's conclusions: Peripheral retinal ablation reduces the incidence of adverse ophthalmic outcome in premature infants with threshold ROP. In sighted eyes, peripheral retinal ablation may reduce the size of the visual field. At this stage, long term outcomes remain unknown.

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Conflict of interest statement

None

References

References to studies included in this review

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