Ocular findings of oral sildenafil use in term and near-term neonates

Rinat Kehat1, Dean J Bonsall, Robert North

  • 1Israel Institute of Technology, Haifa, Israel.

Insights

Sildenafil use in neonates did not show increased ocular complications. Routine ophthalmologic exams are not necessary for term and near-term infants receiving this medication.

Area of Science:

  • Neonatal Medicine
  • Ophthalmology
  • Pharmacology

Background:

  • Sildenafil, a phosphodiesterase type 5 inhibitor, is used for persistent pulmonary hypertension in neonates.
  • Concerns exist regarding potential ocular complications, including exacerbation of retinopathy of prematurity (ROP).
  • The risk of ocular issues in neonates not otherwise at risk for ROP is unknown.

Purpose of the Study:

  • To assess the risk of ocular complications in term and near-term neonates receiving sildenafil.
  • To determine if routine ophthalmologic examinations are warranted for these infants.

Main Methods:

  • A pediatric ophthalmologist evaluated 22 neonates who received oral sildenafil for over two weeks.
  • Infants had a birth gestational age >34 weeks and birth weight >2,100 g.

Main Results:

  • Four patients exhibited ocular findings: bacterial conjunctivitis (2), optic nerve hypoplasia with coloboma and nystagmus (1), and optic disk atrophy with nystagmus following a hypotensive episode (1).
  • These findings were deemed unrelated to sildenafil and improved despite continued drug use.

Conclusions:

  • The study's findings do not support the necessity of routine ophthalmologic examinations for term and near-term neonates treated with sildenafil.
  • Sildenafil use in this population does not appear to necessitate specialized eye screening.
Abstract

Related Concept Videos

Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
Development of the Oral Microbiota01:28

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...