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Short-term Refractive Effects of Propranolol Hydrochloride Prophylaxis on Retinopathy of Prematurity in Very Preterm Newborns

Short-term Refractive Effects of Propranolol Hydrochloride Prophylaxis on Retinopathy of Prematurity in Very Preterm Newborns

Levent Korkmaz, Cagatay Karaca, Mustafa Ali Akin, Osman Bastug, Mustafa Sahiner, Ahmet Ozdemir, Tamer Gunes, Mehmet Adnan Ozturk, Selim Kurtoglu

Curr Eye Res. 2018 Feb;43(2):213-217.

PMID: 29135357

Abstract:

Purpose:
Retinopathy of prematurity (ROP) is one of the major problems of surviving premature infants with several ophthalmic morbidities such as increased risk of refractive errors, strabismus, and cortical visual impairment. Use of propranolol hydrochloride (PH) for the prevention of ROP is a new promising treatment modality. However, long-term effects are still to be defined. In our study, we aimed to investigate the short-term refractive effects of PH used for ROP prophylaxis in very preterm newborns.
Methods:
This is a prospective, randomized, double-blind, placebo-controlled study. Very preterm newborns with a birthweight less than or equal to 1500 g and/or born prior to 32 gestational weeks were included in the study. The subjects were randomly divided into two groups: control group (CG, n = 37) given placebo and PH group (PHG, n = 34) given PH starting from 4 weeks after birth (27.1 ± 2.1 day). PHG patients received PH therapy for about 1 month (25.7 ± 7.8 day). Anthropometric measurements including weight, length, and head circumference were recorded before PH treatment (at birth) and during eye control (at corrected age). Cycloplegic refraction values were measured by retinoscopy at corrected age (CG: 10.3 ± 4.3 months, PHG: 11.4 ± 4.8 months).
Results:
Anthropometric measurements including gestational age, weight, length, and head circumference were similar at birth and corrected age in both groups. The mean level of spherical refraction was significantly less hyperopic in the PHG than in the CG (CG: 1.37 ± 1.40 D, PHG: 0.37 ± 1.44 D) (p = 0.005).
Conclusion:
PH may lead to myopic shift by affecting the beta-adrenergic receptors in the choroid or ciliary body of the developing eye. Long-term refractive follow-up is required in order to elucidate the effects of PH on emmetropization process of these very preterm infants.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP318989-A	(±)-Propranolol hydrochloride		318-98-9	Price

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