Korean J Ophthalmol.  1996 Dec;10(2):92-96. 10.3341/kjo.1996.10.2.92.

The outcome of cryotherapy for retinopathy of prematurity (ROP) according to ROP location

• Khwarg SI
• Yu HG
• Yu YS

• KMID: 1735164
• DOI: http://doi.org/10.3341/kjo.1996.10.2.92

Abstract

Cryotherapy has been shown to be an effective treatment for retinopathy of prematurity (ROP) stage 3+. However, the outcome of cryotherapy is less favorable in zone 1 ROP than in zone 2 ROP. We suspected whether there may be differences in the outcomes of cryotherapy if the zone of ROP is further divided. So we reviewed the records of 85 premature infants (145 eyes) who had undergone cryotherapy for ROP. The frequencies of favorable outcome were 42.9% of 14 eyes (zone 1), 78.9% of 38 eyes (posterior zone 2), 92.9% of 70 eyes (mid zone 2), and 100.0% of 23 eyes (anterior zone 2), respectively (p < 0.001). These results suggest that the more posteriorly the ROP is located, the less favorable the outcome of cryotherapy.

Keyword

cryotherapy; favorable outcome; location; retinopathy of prematurity; zone

MeSH Terms

Cryotherapy/*methods
Follow-Up Studies
Humans
Infant
Infant, Newborn
Postoperative Complications
Retinopathy of Prematurity/pathology/*therapy
Retrospective Studies
Treatment Outcome