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Anatomic outcomes of laser indirect ophthalmoscopy for retinopathy of prematurity in a tertiary referral center in the Philippines.

ABSTRACT: OBJECTIVE:Laser/photocoagulation criteria for retinopathy of prematurity (ROP) are generally universal, with >?90% anatomic success reported in varied settings. Outcomes in the Philippines, a developing/lower-middle income nation, were examined. RESULTS:This single-center retrospective chart review covered years 2014 and 2015. Of 214 infants screened, 64 had any ROP. Thirty-four were treated, and 20 had documented outcomes. Only 15 of 25 eyes (8 infants) with laser treatment-requiring ROP were successes (60%). All infants had Type 1 ROP except one with Aggressive Posterior ROP. Seven infants with bilateral "Milder than Type 1" ROP were treated successfully. Type 1 ROP treatment failures versus successes did not differ significantly in birth weight (1009 g vs. 1112.86 g, p?=?.5152), birth age of gestation (27.74 vs. 28.49 weeks, p?=?.3290), and, delay in first screening (6.74 vs. 5 weeks, p?=?.4649). Poorer outcomes of laser treatment-requiring ROP were documented here compared with elsewhere in the world. Variables/risk factors examined were limited and human error was not systematically considered. Subsequent studies validating this trend should incorporate other clinical (e.g. maternal/neonatal risk factors) and environmental differences that might drive pathology and treatment response in this multifactorial disease. Adherence to protocols gains importance given the widespread delay and early loss to follow-up observed.

SUBMITTER: Chan DFF

PROVIDER: S-EPMC6511119 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Anatomic outcomes of laser indirect ophthalmoscopy for retinopathy of prematurity in a tertiary referral center in the Philippines.

Chan David Francis Fullon DFF Herrera-Arroyo Milagros M MM

BMC research notes 20190510 1

<h4>Objective</h4>Laser/photocoagulation criteria for retinopathy of prematurity (ROP) are generally universal, with > 90% anatomic success reported in varied settings. Outcomes in the Philippines, a developing/lower-middle income nation, were examined.<h4>Results</h4>This single-center retrospective chart review covered years 2014 and 2015. Of 214 infants screened, 64 had any ROP. Thirty-four were treated, and 20 had documented outcomes. Only 15 of 25 eyes (8 infants) with laser treatment-requi ...[more]

PMID: 31077230

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Project description:ObjectivesRetinopathy of prematurity (ROP) is a vasoproliferative disease of the preterm retina with the potential to cause irreversible blindness. Timely screening and treatment of ROP are critical. Neonatal nurses trained in wide field digital retinal photography (WFDRP) for screening may provide a safe and effective strategy to reduce the burden of ophthalmologists in performing binocular indirect ophthalmoscopy (BIO). The objective of the study was to determine the diagnostic accuracy of WFDRP in the diagnosis of referral warranting ROP (RWROP).DesignProspective diagnostic accuracy study.SettingA tertiary neonatal intensive care unit in Perth, Western Australia.ParticipantsPreterm infants who fulfilled the Australian ROP screening criteria (gestational age (GA) <31 weeks, birth weight (BW) <1250 g).InterventionSets of 5-6 images per eye (index test) were obtained within 24-48 hours prior to or after the BIO (reference standard), and uploaded onto a secured server. A wide field digital camera (RetCam, Natus, Pleasanton, California, USA) was used for imaging. A paediatric ophthalmologist performed the BIO. The ophthalmologists performing BIO versus reporting the images were masked to each other's findings.Primary outcomeThe area under the receiver operating characteristic (ROC) curve was used as a measure of accuracy of WFDRP to diagnose RWROP.ResultsA total of 85 infants (mean BW; 973.43 g, mean GA; 29 weeks) underwent a median of two sessions of WFDRP. There were 188 episodes of screening with an average of five images per eye. WFDRP identified RWROP in 7.4% (14/188 sessions) of examinations. In one infant, BIO showed bilateral plus disease and WFDRP did not pick up the plus disease. WFDRP image interpretation had a sensitivity of 80%, specificity of 94.5% for the detection of RWROP. The 'area under the ROC curve' was 88% when adjusted for covariates.ConclusionsWFDRP by neonatal nurses was feasible and effective for diagnosing RWROP in our set up.Trial registration numberACTRN12616001386426.

Project description:IMPORTANCE:Detection of treatment-requiring retinopathy of prematurity (ROP) involves serial eye examinations. An ROP prediction model using predictive factors could identify high-risk infants and reduce required eye examinations. OBJECTIVE:To determine predictive factors for the development of referral-warranted (RW) ROP. DESIGN, SETTING, AND PARTICIPANTS:This multicenter observational cohort study included secondary analysis of data from the Telemedicine Approaches to Evaluating Acute-Phase Retinopathy of Prematurity Study. Infants included in the study had a birth weight (BW) of less than 1251 g. EXPOSURES:Serial ROP examinations of premature infants who had 2 or more ROP examinations. MAIN OUTCOMES AND MEASURES:Incidence of RW-ROP (defined as the presence of plus disease, zone I ROP, or ROP stage 3 or greater in either eye) and associations with predictive factors. RESULTS:Among 979 infants without RW-ROP at first study-related eye examination (median postmenstrual age, 33 weeks; range, 29-40 weeks) who underwent at least 2 eye examinations, 149 (15.2%) developed RW-ROP. In a multivariate model, significant predictors for RW-ROP were male sex (odds ratio [OR], 1.80; 95% CI, 1.13-2.86 vs female), nonblack race (OR, 2.76; 95% CI, 1.50-5.08 for white vs black race and OR, 4.81; 95% CI, 2.19-10.6 for other vs black race), low BW (OR, 5.16; 95% CI, 1.12-7.20 for ?500 g vs >1100 g), younger gestational age (OR, 9.79; 95% CI, 3.49-27.5 for ?24 weeks vs ?28 weeks), number of quadrants with preplus disease (OR, 7.12; 95% CI, 2.53-20.1 for 1-2 quadrants and OR, 18.4; 95% CI, 4.28-79.4 for 3-4 quadrants vs no preplus disease), stage 2 ROP (OR, 4.13; 95% CI, 2.13-8.00 vs no ROP), the presence of retinal hemorrhage (OR, 4.36; 95% CI, 1.57-12.1 vs absence), the need for respiratory support (OR, 4.99; 95% CI, 1.89-13.2 for the need for controlled mechanical ventilator; OR, 11.0; 95% CI, 2.26-53.8 for the need for high-frequency oscillatory ventilation vs no respiratory support), and slow weight gain (OR, 2.44; 95% CI, 1.22-4.89 for weight gain ?12 g/d vs >18 g/d). These characteristics predicted the development of RW-ROP significantly better than BW and gestational age (area under receiver operating characteristic curve, 0.88 vs 0.78; P?<?.001). CONCLUSIONS AND RELEVANCE:When controlling for very low BW and prematurity, the presence of preplus disease, stage 2 ROP, retinal hemorrhage, and the need for ventilation at time of first study-related eye examination were strong independent predictors for RW-ROP. These predictors may help identify infants in need of timely eye examinations.

Dataset Information

Anatomic outcomes of laser indirect ophthalmoscopy for retinopathy of prematurity in a tertiary referral center in the Philippines.

Publications

Anatomic outcomes of laser indirect ophthalmoscopy for retinopathy of prematurity in a tertiary referral center in the Philippines.

Similar Datasets

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