View clinical trials related to Retinopathy of Prematurity.
Filter by:Preterm infants are at risk of developing ROP (retinopathy of prematurity), an eye condition that can cause blindness. Preterm infants born before gestation week (GA) 30 are therefor screened regularly with eye examinations. These eye examinations are painful and despite a lot of research no clear method of pain relief have been found. Since pain in the preterm infant can lead to both short- and longterm negative consequences an effective pain relief during these examinations are of importance. In this study we will investigate if Clonidine can be effective as pain-relief during ROP eye examinations.
The aim of this study is to investigate the effect of using breast milk as eye drops on ROP (Retinopathy of prematurity) disease observed in less then 32 weeks gestational age preterm babies.
Retinopathy of prematurity (ROP) is one of the common anatomic causes of blindness among Filipinos, accounting for 47.7% of the cases. With this retinopathy being preventable and treatable, ROP screening has been proven to be effective in preventing blindness, which is achieved with the usage of mydriatics. Even if the regimen of multiple alternate instillations of 0.5% tropicamide and 2.5% phenylephrine is the one recommended by international guidelines for ROP screening, the mydriatic regimen used by many of the country's institutions is the single instillation of 0.5% tropicamide + 0.5% phenylephrine applied via a cotton wick placed in the inferior fornix (SIW). There have been no studies yet on the safety and efficacy in premature infants of this mydriatic preparation and method, although it is hypothesized that the usage of a cotton wick promotes the possible systemic effects of the mydriatic combination used. This study then aims to determine the safety and efficacy of different mydriatic regimens in premature infants referred for screening of ROP using (1) multiple alternate instillations of 0.5% cyclopentolate hydrochloride and 2.5% phenylephrine (MAI), (2) single instillation of 0.5% tropicamide + 0.5% phenylephrine (SI), and (3) single instillation of 0.5% tropicamide + 0.5% phenylephrine with a cotton wick placed in the inferior fornix (SIW) in a tertiary Philippine hospital. This study was designed as a randomized, double blind, clinical study which enrolled sixty preterm infants referred for ROP Screening from January to July 2011. With instillations via MAI, SI, and SIW, systolic blood pressure (SBP), diastolic pressure (DBP), mean arterial pressure (MAP), heart rate, and oxygen saturation were monitored from ten minutes prior to instillation up to forty-five minutes after instillation. Pupil dilations were also measured at the forty-fifth minute.
The development of the retinal vascular network is completed during the third trimester of pregnancy and and the first 15 days of life of the newborn. This late maturation can be problematic in cases of preterm births and result in immature retinal vascularization, known as retinopathy of prematurity (ROP). Among the various factors influencing retinal vascular development, the tissue content of omega-3 polyunsaturated fatty acids (PUFAs) appears to be a crucial element. In a previous project, OMEGA-ROP, we showed a difference in the blood bioavailability of omega-3 PUFAs in infants born at less than 28 weeks of amenorrhea who develop ROP compared to healthy newborns with no retinopathy. This study also showed that mothers experienced variations in the blood levels of omega-3 PUFAs that were contrary to the types of variations observed in their children. This suggests a sequestration of omega-3 PUFAs in the mothers of children who will develop ROP. This new project aims to better understand the underlying molecular mechanisms by studying the expression levels of placental fatty acid receptors in relation to the development of ROP in newborns.
Cord blood will be taken after birth for evaluation of cytokines level. At age of 4-6 weeks, we will do fundus examination for babies . Retrograde, we will study the perinatal risk factors in subjects found to have retinopathy. Follow up fundus will be done according to results of the first examination. By this study,we will be able later on to predict whom of preterm infants are more prone to develop retinopathy of prematurity.
Abstract Background: Screening examinations for retinopathy of prematurity (ROP) is critical to reduce ROP-related vision loss, however, the procedure is painful and uncomfortable, and topical anesthetics do not completely suppress the painful responses. The number of safe and effective pharmacological options to reduce pain during eye examinations for ROP screening in preterm infants is limited. Objective: This study compared the efficacy of oral ibuprofen and oral paracetamol in reducing pain during screening for ROP in preterm infants. Design: This prospective observational study was conducted at a tertiary-care neonatal intensive care units. Forty-four preterm infants with gestational age ≤ 32 weeks undergoing ROP screening were included. Each enrolled infant received either oral ibuprofen 10 mg/kg (n = 22) or oral paracetamol 10 mg/kg (n = 22) one hour before eye examination. The primary outcome measure was pain assessed by the Neonatal Pain, Agitation, and Sedation (N-PASS) scale. Secondary outcome measures were tachycardia, bradycardia, desaturations, and crying time.
This randomized clinical trial will compare retinal outcomes with low-dose intravitreous bevacizumab (0.063 mg) versus laser photocoagulation as treatment for infants with type 1 retinopathy of prematurity (ROP). The study also will assess neurodevelopment, refractive error, visual acuity, and peripheral visual fields.
Type 1 retinopathy of prematurity in zone I represents the most severe type of ROP and has the worst prognosis. It is unknown whether low-dose bevacizumab will be successful in these severe cases. Also unknown is the timing and extent of peripheral retinal vascularization after low-dose bevacizumab compared with the standard dose. The current study will evaluate whether doses of 0.063 mg and 0.25mg are effective as treatment for type 1 ROP, with ROP and retinal vessels all in zone I.
The purpose is to assess whether the use of microdrop instillation of phenylephrine 1.67% and tropicamide 0.33% maintains mydriatic efficacy while presents an improved safety profile compared with standard drops of phenylephrine 1.67% and tropicamide 0.33%, which is routine care for pupil dilation during retinopathy of prematurity (ROP) screening in our neonatal intensive care unit.
This is an open-label, single-arm phase I/II trial to evaluate the safety and efficacy of Rho-associated protein kinase(ROCK) inhibitor Ripasudil eye drops for preterm infants with Retinopathy of Prematurity(ROP).