Blood metabolites in preterm infants with retinopathy of prematurity based on tandem mass spectrometry: a preliminary study / 中国当代儿科杂志

OBJECTIVES@#To study new biomarkers for the early diagnosis of retinopathy of prematurity (ROP) by analyzing the differences in blood metabolites based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) and metabolomics.@*METHODS@#Dried blood spots were collected from 21 infants with ROP (ROP group) and 21 infants without ROP (non-ROP group) who were hospitalized in the Sixth Affiliated Hospital of Sun Yat-sen University from January 2013 to December 2016. LC-MS/MS was used to measure the metabolites, and orthogonal partial least squares-discriminant analysis was used to search for differentially expressed metabolites and biomarkers.@*RESULTS@#There was a significant difference in blood metabolic profiles between the ROP and non-ROP groups. The pattern recognition analysis, Score-plot, and weight analysis obtained 10 amino acids with a relatively large difference. Further statistical analysis showed that the ROP group had significant increases in blood levels of glutamic acid, leucine, aspartic acid, ornithine, and glycine compared with the non-ROP group (P<0.05). The receiver operating characteristic curve analysis showed that glutamic acid and ornithine had the highest value in diagnosing ROP.@*CONCLUSIONS@#Blood metabolites in preterm infants with ROP are different from those without ROP. Glutamic acid and ornithine are the metabolic markers for diagnosing ROP. LC-MS/MS combined with metabolomics analysis has a potential application value in the early identification and diagnosis of ROP.

Status of fungal sepsis among preterm infants in 25 neonatal intensive care units of tertiary hospitals in China / 中华儿科杂志

Objective: To analyze the prevalence and the risk factors of fungal sepsis in 25 neonatal intensive care units (NICU) among preterm infants in China, and to provide a basis for preventive strategies of fungal sepsis. Methods: This was a second-analysis of the data from the "reduction of infection in neonatal intensive care units using the evidence-based practice for improving quality" study. The current status of fungal sepsis of the 24 731 preterm infants with the gestational age of <34+0 weeks, who were admitted to 25 participating NICU within 7 days of birth between May 2015 and April 2018 were retrospectively analyzed. These preterm infants were divided into the fungal sepsis group and the without fungal sepsis group according to whether they developed fungal sepsis to analyze the incidences and the microbiology of fungal sepsis. Chi-square test was used to compare the incidences of fungal sepsis in preterm infants with different gestational ages and birth weights and in different NICU. Multivariate Logistic regression analysis was used to study the outcomes of preterm infants with fungal sepsis, which were further compared with those of preterm infants without fungal sepsis. The 144 preterm infants in the fungal sepsis group were matched with 288 preterm infants in the non-fungal sepsis group by propensity score-matched method. Univariate and multivariate Logistic regression analysis were used to analyze the risk factors of fungal sepsis. Results: In all, 166 (0.7%) of the 24 731 preterm infants developed fungal sepsis, with the gestational age of (29.7±2.0) weeks and the birth weight of (1 300±293) g. The incidence of fungal sepsis increased with decreasing gestational age and birth weight (both P<0.001). The preterm infants with gestational age of <32 weeks accounted for 87.3% (145/166). The incidence of fungal sepsis was 1.0% (117/11 438) in very preterm infants and 2.0% (28/1 401) in extremely preterm infants, and was 1.3% (103/8 060) in very low birth weight infants and 1.7% (21/1 211) in extremely low birth weight infants, respectively. There was no fungal sepsis in 3 NICU, and the incidences in the other 22 NICU ranged from 0.7% (10/1 397) to 2.9% (21/724), with significant statistical difference (P<0.001). The pathogens were mainly Candida (150/166, 90.4%), including 59 cases of Candida albicans and 91 cases of non-Candida albicans, of which Candida parapsilosis was the most common (41 cases). Fungal sepsis was independently associated with increased risk of moderate to severe bronchopulmonary dysplasia (BPD) (adjusted OR 1.52, 95%CI 1.04-2.22, P=0.030) and severe retinopathy of prematurity (ROP) (adjusted OR 2.55, 95%CI 1.12-5.80, P=0.025). Previous broad spectrum antibiotics exposure (adjusted OR=2.50, 95%CI 1.50-4.17, P<0.001), prolonged use of central line (adjusted OR=1.05, 95%CI 1.03-1.08, P<0.001) and previous total parenteral nutrition (TPN) duration (adjusted OR=1.04, 95%CI 1.02-1.06, P<0.001) were all independently associated with increasing risk of fungal sepsis. Conclusions: Candida albicans and Candida parapsilosis are the main pathogens of fungal sepsis among preterm infants in Chinese NICU. Preterm infants with fungal sepsis are at increased risk of moderate to severe BPD and severe ROP. Previous broad spectrum antibiotics exposure, prolonged use of central line and prolonged duration of TPN will increase the risk of fungal sepsis. Ongoing initiatives are needed to reduce fungal sepsis based on these risk factors.

Retinopatía de la prematuridad agresiva posterior / Aggressive Posterior Retinopathy of Prematurity

Introducción: La retinopatía del prematuro es una enfermedad ocular provocada por una alteración en la vasculogénesis de la retina, que lleva a la pérdida parcial o total de la visión. Objetivo: Presentar el primer caso, en la provincia de Santa Clara, de retinopatía de la prematuridad agresiva posterior y el tratamiento realizado. Presentación del caso: Niña prematura con más de 5 factores de riesgo al nacer que presentó retinopatía de la prematuridad agresiva posterior y se le realizó tratamiento con bevacizumab intravítreo. Conclusiones: La evolución de la niña en un período de un 1 año resultó satisfactoria con regresión total de la enfermedad. El tratamiento establecido constituye un método alternativo con buenos resultados en algunas condiciones específicas como la retinopatía del prematuro agresiva posterior(AU)

Introduction: Retinopathy of prematurity is an ocular disease caused by an alteration in retinal vasculogenesis, leading to partial or total loss of sight. Objective: To present the first case, in the province of Santa Clara, of aggressive posterior retinopathy of prematurity and the treatment performed. Case presentation: Premature girl with more than 5 risk factors at birth who presented aggressive posterior retinopathy of prematurity and was treated with intravitreal bevacizumab. Conclusions: The evolution of the girl in a period of 1 year was satisfactory with total regression of the disease. The established treatment constitutes an alternative method with good results in some specific conditions such as aggressive posterior retinopathy of prematurity(AU)

Retinopatía del prematuro con presentación atípica / Retinopathy of prematurity with atypical presentation

La retinopatía de la prematuridad es una enfermedad dinámica vasoproliferativa de la retina inmadura postnatal que afecta a los bebés prematuros. Cuando aparecen signos de atipicidad en su diagnóstico o evolución deben descartarse otras entidades vasculares de la retina, que generalmente tienen un trasfondo genético y semejan o coexisten con dicha entidad. Se presenta un caso con características de Retinopatía del prematuro y algunos signos de atipicidad. Se describe su manejo y evolución, así como una breve descripción de las entidades que conforman el diagnóstico diferencial(AU)

Retinopathy of prematurity is a dynamic vasoproliferative disease of the immature postnatal retina that affects premature babies. When signs of atypicality appear in its diagnosis or evolution, other vascular entities of the retina must be ruled out, which generally have a genetic background and resemble or coexist with said entity. We present a case with characteristics of Retinopathy of prematurity and some signs of atypicality. Its management and evolution are described, as well as a brief description of the entities that make up the differential diagnosis(AU)

Miopía en pacientes con retinopatía de la prematuridad / Myopia in patients with Retinopathy of Prematurity

Objetivos: describir el comportamiento del defecto miópico hasta el año de vida, en pacientes que desarrollaron retinopatía de la prematuridad, y determinar los principales factores de riesgo del mismo. Método: se realizó un estudio descriptivo, longitudinal, prospectivo en 37 pacientes que, habiendo sido tratados o no por retinopatía de la prematuridad, mantuvieron un seguimiento estable en consulta posterior a la fase aguda de la enfermedad. Fueron evaluadas a los seis y 12 meses de vida teniendo en cuenta las variables edad gestacional al nacer, peso al nacer, tipo de retinopatía de la prematuridad, presencia de miopía. Resultados: la mediana de edad gestacional y peso al nacer fueron 30,2 semanas y 1 287 g. A los seis meses cinco ojos de 27 pacientes (considerando solo los ojos derechos) presentaron miopía, lo cual representa el 18,5 por ciento. A los 12 meses este valor se incrementó a 44,4 por ciento. La edad gestacional y el peso al nacer no mostraron relación con el desarrollo de miopía (p = 0,072 y p = 0,397) a los 12 meses. En pacientes con retinopatía de la prematuridad grave el defecto miópico resultó más frecuente (p = 0,003). Conclusiones: la prematuridad y el peso al nacer no constituyeron variables que influyeran en la aparición de miopía. Por el contrario, la retinopatía de la prematuridad grave sí se asoció con una mayor miopía, sobre todo a los 12 meses(AU)

Objectives: to describe the behavior of the myopic defect up to one year of life, in patients who developed retinopathy of prematurity, and to determine the main risk factors for it. Method: a descriptive, longitudinal, prospective study was carried out in 37 patients who, having been treated for retinopathy of prematurity or not, maintained a stable follow-up in consultation after the acute phase of the disease. They were evaluated at 6 and 12 months of life taking into account the variables gestational age at birth, birth weight, type of retinopathy of prematurity, presence of myopia. Results: Median gestational age and birth weight were 30.2 weeks and 1287g. At 6 months, 5 eyes of 27 patients (considering only the right eyes) presented myopia, which represents 18.5 percent. At 12 months this value increased to 44.4 percent. Gestational age and birth weight were not related to the development of myopia (p = 0.072) and p = 0.397) at 12 months. In patients with severe retinopathy of prematurity, myopic defect was more frequent (p = 0.003). Conclusions: prematurity and birth weight were not variables that influenced the appearance of myopia. On the contrary, severe retinopathy of prematurity was associated with greater myopia, especially at 12 months(AU)

Programa de pesquisaje de retinopatía de la prematuridad en Villa Clara / Screening Program for Retinopathy of Prematurity in Villa Clara

RESUMEN La retinopatía de la prematuridad es la parte de la Oftalmología pediátrica que más interés suscita en la actualidad. En las últimas dos décadas, se realizaron rigurosos trabajos de investigación clínica sobre esta temática pues es la causa más frecuente de ceguera infantil en países desarrollados. Dicha afección fue descrita por primera vez por Terry en 1940 como fibroplasia retrolental, forma cicatricial de la enfermedad. En la década de los 50 se relacionó con el aporte elevado e incontrolado de oxígeno, lo que llevó a un control estricto de este y a restringir su uso en las Unidades de Neonatología. La Clasificación Internacional de la Retinopatía de la Prematuridad describió sus grados de gravedad basándose en cuatro parámetros: localización, estadio, extensión y presencia de enfermedad plus. El personal médico y paramédico de las salas de terapias intensivas neonatales se ha preparado para disminuir la incidencia de esta enfermedad.

ABSTRACT Retinopathy of prematurity is the part of Pediatric Ophthalmology that arouses the most interest today. In the last two decades, rigorous clinical research has been carried out on this subject, as it is the most common cause of childhood blindness in developed countries. This condition was first described by Terry in 1940 as retrolental fibroplasia, a scar form of the disease. In the 1950s, it was related to a high and uncontrolled oxygen supply, which led to its strict control, as well as to restrict its use in the Neonatology units. The International Classification of Retinopathy of Prematurity described its degrees of severity based on four parameters: location, stage, extension and presence of plus disease. Medical and paramedical personnel of the neonatal intensive care units have been prepared to reduce the incidence of this disease.

Defectos refractivos en pacientes prematuros / Refractive defects in premature patients

El nacimiento prematuro favorece la aparición de alteraciones visuales donde los defectos refractivos altos prevalecen, pues se afecta el proceso de emetropización. La revisión tuvo como objetivo describir la miopía del prematuro como resultado de una alteración en el desarrollo del segmento anterior. La hipermetropía se observa de mayor cuantía en estos pacientes, así como el astigmatismo significativo. Entre los factores de mayor peso se encuentran, además de la prematuridad, el bajo peso al nacer, la presencia de retinopatía del prematuro y su tratamiento con láser. Las evaluaciones oftalmológicas sistemáticas permiten detectar y corregir a tiempo estas alteraciones y favorecen una función visual óptima con menor riesgo de ambliopía. Los artículos que se consultaron son fundamentalmente de los últimos cinco años, en idiomas español e inglés, disponibles en textos completos y resúmenes en algunas bases de datos como PubMed, Ebsco, Google Académico y Scielo(AU)

Preterm birth may affect the emmetropization process, leading to the appearance of visual alterations characterized by a high prevalence of refractive defects. A case is described of myopia of prematurity resulting from an alteration in the development of the anterior segment. Hyperopia and astigmatism are significantly frequent in these patients. Other causative factors besides prematurity are low birth weight, the presence of retinopathy of prematurity and its treatment with laser therapy. Systematic ophthalmologic evaluation allows early detection and correction of these alterations, leading to optimal visual function and a lower risk for amblyopia. The articles consulted are mainly from the last five years, written in Spanish or English, and available as full texts and abstracts in databases like PubMed, EBSCO, Google Scholar and SciELO(AU)

Comorbidades e procedimentos assistenciais correlatos ao desenvolvimento de retinopatia da prematuridade / Comorbidities and care procedures related with retinopathy of prematurity development

Objetivo: descrever as principais comorbidades e os procedimentos assistenciais correlatos ao desenvolvimento de retinopatia da prematuridade em recém-nascidos prematuros hospitalizados em Unidade de Terapia Intensiva Neonatal. Material e Método: estudo observacional quantitativo, com coleta de dados documental, obtida de 181 prontuários hospitalares de recém-nascidos prematuros, referente ao período de janeiro de 2014 a junho de 2016, em município de médio porte no Paraná. A análise estatística foi descritiva e inferencial. O estudo foi aprovado por comitê de ética em pesquisa. Resultados: prevaleceu o diagnóstico doenças respiratórias (41,99%; p-valor < 0,109), seguido da comorbidade sepse (63,54%; p-valor < 0,357). Necessitaram de transfusão de sangue 80 bebês (44,20%; p-valor < 0,001), e 152 (83,98%; p-valor < 0,001) fizeram uso de oxigenioterapia. A retinopatia da prematuridade prevaleceu nos prematuros moderados (44%), sendo o grau 3 o mais grave encontrado. Conclusão: doenças respiratórias, sepse e procedimentos como a transfusão de sangue, a oxigenioterapia e a cateterização intravenosa influenciaram na presença do agravo, com maior incidência em prematuros moderados.

Objective: to describe the main comorbidities and care procedures related with the development of retinopathy of prematurity in premature newborns hospitalized in a Neonatal Intensive Care Unit. Material and Method: quantitative observational study, with documentary data collection, obtained from 181 hospital records of premature newborns, referring to the period from January 2014 to June 2016, in a medium-sized municipality in Paraná. Statistical analysis was descriptive and inferential. The study was approved in Ethical Research Committee. Results: respiratory diseases (41.99%; p-value < 0.109) prevailed, followed by comorbidity sepsis (63.54%; p-value < 0.357). Eighty babies (44.20%; p-value < 0.001) required blood transfusion, and 152 (83.98%; p-value < 0.001) used oxygen therapy. Retinopathy of prematurity prevailed in moderate preterm infants (44%), with grade 3 being the most severe found. Conclusion: respiratory diseases, sepsis and procedures such as blood transfusion, oxygen therapy and intravenous catheterization influenced the presence of the disease, with a higher incidence in moderate preterm infants.

Recomendaciones para la atención de la retinopatía de la prematuridad en Cuba / Recommendations for the care of retinopathy of prematurity in Cuba

Se presenta las recomendaciones para la atención de la retinopatía de la prematuridad en Cuba. El propósito de este trabajo es exponer las acciones de salud que deben realizar cada miembro del grupo multidisciplinario creado para lograr la reducción de la ceguera por retinopatía de la prematuridad. Se presenta la definición, etiología y factores de riesgo de la enfermedad. Se definen los pacientes que deben ser objeto de estudio y el momento en que deben ser evaluados. Este documento también muestra la clasificación de la entidad, expone las conductas que deben cumplir cada uno de los integrantes del equipo que interviene en la pesquisa y el tratamiento de la retinopatía de la prematuridad; finaliza con los criterios de evaluación, que es el propósito que se persigue con la aplicación de estas recomendaciones(AU)

Recommendations for the care of retinopathy of prematurity in Cuba are presented. The aim of this work is to show the health actions that each member of the multidisciplinary group created to achieve the reduction of blindness by retinopathy of prematurity must take. The definition, etiology and risk factors of the disease are presented. The patients to be studied and when they should be evaluated are defined. This document also shows the classification of the entity, explains the behaviors that must be accomplished by each member of the team involved in the research and treatment of retinopathy of prematurity; it concludes with the evaluation criteria, which is the purpose pursued by the implementation of these recommendations(AU)

Analysis of Cochrane Systematic Reviews about retinopathy of prematurity / Análise das Revisões Sistemáticas da Cochrane sobre retinopatia da prematuridade

ABSTRACT Background: Retinopathy of prematurity (ROP) is a vasoproliferative retinal disorder that affects extremely premature infants and is the leading cause of irreversible blindness in childhood. Objective: This study presents a review of Cochrane systematic reviews about ROP. Methods: We analyzed and summarized the results of all intervention, prevention and treatment, from Cochrane Systematic Reviews (SR) for ROP designed to the highest standard of rigor to show the current position and propose studies that are missing for decision making. Results: Eight SR were analyzed in this study, four in prophylaxis and four in treatment of ROP. The outcome 'Beneficial effect of oral beta-blockers on progression to stage 3 ROP but not to stage 2 ROP with plus disease or to stage 4 or 5 ROP was the only one that presented moderate evidence quality, all the others outcomes presented evidence quality floating from low to very low. Conclusion: There is a lack of studies showing the quality of evidence in the treatment and prevention of retinopathy of prematurity, particularly in long-term outcomes after treatment in order to assess the impact and quality of life of these patients.

RESUMO Introdução: A retinopatia da prematuridade (ROP) é um distúrbio vasoproliferativo da retina que afeta recém nascidos extremamente prematuros e é a principal causa de cegueira irreversível na infância. Objetivo: Este estudo apresenta uma revisão das revisões sistemáticas da Cochrane sobre ROP. Métodos: Analisamos e resumimos os resultados de todas as intervenções, prevenção e tratamento, das revisões sistemáticas (SR) da Cochrane para ROP, projetada com o mais alto padrão de rigor para mostrar a posição atual e propor estudos que estão faltando para a tomada de decisão. Resultados: Oito RS foram analisados neste estudo, quatro em profilaxia e quatro em tratamento de ROP. O efeito benéfico dos betabloqueadores orais na progressão para a ROP do estágio 3, mas não para a ROP da fase 2 com doença positiva ou para a ROP da fase 4 ou 5 foi o único que apresentou qualidade de evidência moderada, todos os outros resultados apresentaram qualidade de evidência flutuante de baixo a muito baixo. Conclusão: Faltam estudos demonstrando a qualidade das evidências no tratamento e prevenção da retinopatia da prematuridade, principalmente em desfechos em longo prazo após o tratamento, a fim de avaliar o impacto e a qualidade de vida desses pacientes.

Effect of different mydriatic regimens used for pupil dilation on the vital signs of premature infants for retinopathy of prematurity screening in a Philippine tertiary hospital: A randomized double-blind clinical trial

@#<p style="text-align: justify;"><strong>Objectives.</strong> To determine the safety and efficacy of three different mydriatic regimens in premature infants referred for retinopathy of prematurity (ROP) screening using (1) multiple alternate instillations of 0.5% cyclopentolate hydrochloride and 2.5% phenylephrine (MAI), (2) single instillation of 0.5%/0.5% tropicamide + phenylephrine (SI) and (3) single instillation of 0.5%/0.5% tropicamide + phenylephrine with a cotton wick placed in the inferior fornix (SIW) in a Philippine tertiary hospital.</p><p style="text-align: justify;"><strong>Methods.</strong> A randomized, double-blind, clinical trial included preterm infants for ROP screening at a Philippine tertiary hospital. After instillations via MAI, SI, and SIW, systolic blood pressure (SBP), diastolic pressure (DBP), mean arterial pressure (MAP), heart rate, and oxygen saturation were monitored. Pupillary dilation was also measured.</p><p style="text-align: justify;"><strong>Results.</strong> Sixty preterm infants, 20 to each intervention, were included. The MAI group did not have significant changes relative to its baseline vital signs. The use of SI produced lower DBP (p<0.0106) and MAP (p<0.0027) compared to MAI. The use of SI produced lower DBP (p<0.01) and MAP (p<0.003) compared to MAI. The SIW group exhibited significant increases in SBP (p<0.002) and in MAP (p<0.04) compared to MAI. This increase in SBP exceeded the clinical normal values for <37 weeks old infants. Pupillary dilation did not have significant differences among groups (p=0.24).</p><p style="text-align: justify;"><strong>Conclusion.</strong> Due to significant increase in SBP, it is recommended to discontinue SIW in preterm infants for ROP screening since it may promote the mydriatic's systemic absorption. Except for the clinically increased heart rate in infants aged ?37 weeks at examination, SI was found to be at par with the recommendation of the UK ROP Guidelines of May 2008.</p>

Risk factors for retinopathy of prematurity: a systematic review / Fatores de risco para retinopatia da prematuridade: uma revisão sistemática

ABSTRACT To describe the prevalence of risk factors for retinopathy of prematurity and respective stages. Retrospective data were extracted from original articles addressing risk factors for retinopathy of prematurity retrieved from Scientific Electronic Library Online (SciELO), Virtual Health Library (VHL) and National Library of Medicine - NLM (PubMed) databases. In the initial search, 186 articles were found. Following title and abstract reading and application of inclusion and exclusion criteria, 25 articles were selected for this analysis. Variables of interest varied widely between studies. Gestational age and birth weight were listed as risk factors in all studies. Gender analysis revealed small gender-related differences, since approximately 52.9% of affected neonates were males and 47.1% females. As to race/color, approximately 72.7% were white, 12% were brown and 2.7% were black. However, there is a lack of consensus over the significance of these factors. The study revealed that retinopathy of prematurity is a multifactorial disease primarily associated with prematurity, low birth weight and oxygen therapy. Albeit potentially avoidable and reversible, the incidence of the condition is high. Therefore, further studies along the same lines are needed for deeper understanding of risk factors for or retinopathy of prematurity and mitigation of long-term consequences.

RESUMO O objetivo deste estudo foi descrever a prevalência dos fatores de risco associados à retinopatia da prematuridade e aos seus estágios. Para isso, foi realizado uma busca nas bases de dados SciELO, VHL e PubMed® de estudos originais que analisavam os fatores de risco para retinopatia da prematuridade foram encontrados. Inicialmente, encontrou-se 186 artigos. Após a leitura dos títulos e dos resumos e de acordo com os critérios de inclusão e de exclusão, foram escolhidos 25 artigos para compor a base de dados deste estudo. Observa-se que houve uma grande diversidade nas variáveis dos estudos. Em relação aos fatores de risco, todos os artigos mencionaram idade gestacional e peso. Ao analisar o sexo, houve uma pequena discrepância, cerca de 52,9% eram do sexo masculino e 47,1% do feminino. Em relação à raça/cor, aproximadamente 72,7% eram brancos, 12% pardos e 2,7% pretos. No entanto, não há consenso sobre esses aspectos na literatura. O estudo constatou que a retinopatia da prematuridade é uma doença multifatorial, tendo como principais fatores de risco prematuridade, baixo peso ao nascer e oxigenoterapia. Trata-se de uma doença de alta incidência, apesar de ser evitável e reversível, portanto, pesquisas como esta são essenciais para conhecer os fatores associados e, assim, reduzir as consequências a longo prazo da doença.

Swept-source optical coherence tomography findings in premature children with a history of retinopathy of prematurity at 5 years of age / Achados de tomografia de coerência óptica swept-source em crianças de 5 anos de idade com história de retinopatia da prematuridade

ABSTRACT Purpose: To compare central foveal thickness, retinal nerve fiber layer thickness, and subfoveal choroidal thickness using swept-source optical coherence tomography in premature children with a history of treated retinopathy of prematurity (either with intravitreal bevacizumab or laser photocoagulation) or spontaneously regressed retinopathy of prematurity versus age-matched healthy children at the age of 5 years. Methods: A total of 79 children were divided into four groups: group 1, children who received intravitreal bevacizumab treatment; group 2, children who received laser photocoagulation treatment; group 3, children who had spontaneously regressed retinopathy of prematurity; and group 4, age matched, full-term healthy children. At the age of 5 years, visual functions and refractive status were assessed. The optical coherence tomography analysis was performed using swept-source optical coherence tomography (DRI-OCT Triton; Topcon, USA). Results: There were 12 (15.2%), 23 (29.1%), 30 (38%), and 14 (17.7%) children in groups 1, 2, 3, and 4, respectively. Sex distribution was similar between the groups (p=0.420). Best corrected visual acuity was significantly better in group 4 compared with groups 1, 2, and 3 (p=0.035, p=0.001, and p=0.001, respectively). Refractive error results were similar between the groups (p=0.119). Central foveal thickness was significantly higher in group 2 than in group 1 (p=0.023). There were no significant differences observed between the groups in retinal nerve fiber layer thickness and subfoveal choroidal thickness (p>0.05). Conclusions: Visual functional outcomes were better in term-born healthy children compared with those noted in children with a history of treated retinopathy of prematurity and spontaneously regressed retinopathy of prematurity. Laser treatment exerted a signifi­cant effect on central foveal thickness in premature children at the age of 5 years, as revealed by swept-source optical coherence tomography.

RESUMO Objetivo: Comparar a espessura central foveal, a da camada de fibras nervosas da retina e a da coróide subfoveal através da tomografia de coerência óptica swept-source em crianças de 5 anos de idade com história de retinopatia da prematuridade (RP) tratada com bevacizumabe intravítreo, ou com fo­tocoagulação a laser, com crianças em regressão espontânea da retinopatia da prematuridade, e com crianças saudáveis da mes­ma idade. Métodos: Um total de 79 crianças foi dividido em quatro grupos. Grupo 1: crianças que receberam tratamento com bevacizumabe intravítreo. Grupo 2: crianças que foram tratadas com fotocoagulação a laser. Grupo 3: crianças que ti­veram regressão espontânea da retinopatia da prematuridade . Grupo 4: crianças da mesma idade saudáveis e nascidas a termo. As funções visuais e o status refrativo foram avaliados aos 5 anos de idade. A análise de tomografia de coerência óptica foi feita por um dispositivo do tipo swept-source (DRI-OCT Triton; Topcon, EUA). Resultados: Haviam 12 crianças (15,2%) no grupo 1, 23 crianças (29,1%) no grupo 2, 30 crianças (38%) no grupo 3 e 14 crianças (17,7%) no grupo 4. A distribuição por sexo foi semelhante em todos os grupos (p=0,420). A acuidade visual com a melhor correção mostrou-se significativamente maior no grupo 4 em comparação com os grupos 1, 2 e 3 (respectivamente, p=0,035, p=0,001 e p=0,001). Os resultados dos erros de refração foram semelhantes em todos os grupos (p=0,119). A espessura foveal central mostrou-se significativamente maior no grupo 2 do que no grupo 1 (p=0,023). Não foram observadas diferenças significativas entre os grupos quanto à espessura da camada de fibras nervosas da retina e à espessura da coroide subfoveal (p>0,05). Conclusões: Os desfechos visuais funcionais foram melhores nas crianças saudáveis nascidas a termo, em comparação com aqueles observados nas crianças com história de retinopatia da prematuridade tratada ou com regressão espontânea. O tratamento com laser teve um efeito significativo na espessura foveal central em crianças de 5 anos de idade, nascidas prematuras, como revelado pela tomografia de coerência óptica swept-source.

Guía de práctica clínica para la prevención, diagnóstico y manejo de la retinopatía de la prematuridad / Clinical practice guideline for the prevention, diagnosis and management of retinopathy of prematurity

La Retinopatía de la Prematuridad (ROP por sus siglas en inglés) es un trastorno retiniano vasoproliferativo y una de las causas principales de ceguera prevenible en niños (1). La ROP afecta a recién nacidos prematuros (RNP) y está asociada a la administración inadecuada de oxígeno (2). El Seguro Social de Salud (EsSalud) priorizó la realización de la presente guía de práctica clínica (GPC) con la finalidad de establecer lineamientos basados en evidencia para gestionar de la mejor manera los procesos y procedimientos asistenciales de las presentes condiciones clínicas. Esta GPC fue realizada por la Dirección de Guías de Práctica Clínica, Farmacovigilancia y Tecnovigilancia del Instituto de Evaluación de Tecnologías en Salud e Investigación (IETSI) de EsSalud.

Análisis de la frecuencia y factores de riesgo asociados a la retinopatía del prematuro en neonatos de muy bajo peso al nacer / Retinopathy of prematurity, frequency and risk factors in very low birth weight infants

Resumen Introducción: La retinopatía del prematuro (ROP) es una de las principales causas de ceguera infantil. La inmadurez y la exposición a oxígeno son algunos factores de riesgo. El objetivo de este artículo fue analizar la frecuencia y los factores de riesgo de ROP en una cohorte de recién nacidos menores de 1,500 g. Métodos: Se llevó a cabo un estudio de casos (con ROP) y controles (sin ROP) de recién nacidos menores de 1,500 g. Se analizaron variables prenatales y neonatales, y para su comparación se utilizaron las pruebas estadísticas t de Student, χ2 y U de Mann-Whitney. Resultados: Se analizaron 282 recién nacidos: 152 (53.9%) con ROP y 130 (46.1%) sin ROP. La mayor frecuencia se encontró en los estadios 1 y 2, con 139 pacientes (91.4%), seguidos de los estadios 3 a 5, con 13 pacientes (8.5%). En los pacientes con ROP, el peso al nacer fue menor (902.7 vs. 1037.9 g; p < 0.0001), así como la edad gestacional (28.2 vs. 29.6 semanas de gestación; p < 0.0001). Los días de ventilación (32.8 vs. 16.1; p < 0.00001) y los días de oxígeno requerido durante la estancia hospitalaria (87.7 vs. 62.6; p < 0.0001) fueron mayores en los pacientes con ROP. La displasia broncopulmonar, la hemorragia intraventricular y la sepsis tardía fueron comorbilidades significativas para el desarrollo de ROP. Conclusiones: En este estudio, la frecuencia de ROP fue mayor que la reportada en la población mexicana, con una baja proporción de formas graves. La vigilancia estrecha del manejo de los neonatos con menor peso y menos edad gestacional es fundamental para lograr disminuir esta enfermedad.

Abstract Background: Retinopathy of prematurity (ROP) is the principal cause of blindness during childhood. The objective of this study was to analyze the frequency of ROP and risk factors associated with ROP in a cohort of very low birth weight infants. Methods: A cases (ROP) and controls (no ROP) study of infants less than 1500 g was conducted. Perinatal and neonatal variables were analyzed. For the statistical analysis, χ2 test, Student’s t-test and Mann-Whitney’s U-test were used. Results: For the study, 282 neonates were included: 152 (53.9%) with ROP and 130 (46.1%) without ROP. The most frequent stages observed were stage 1 and 2, with 139 (91.4%) patients, and stages 3 to 5, with only 13 patients (8.5%). In those neonates with ROP compared with neonates without ROP, the birth weight was less (902.7 vs. 1037.9 g) and the difference was significant (p < 0.0001). Also, the difference with gestational age (28.2 vs. 29.6; p < 0.0001), total ventilation days (32.8 vs. 16.1; p < 0.00001) and total oxygen days (87.7 vs. 62.6; p < 0.0001) was significant in neonates with ROP and neonates without the disease. Bronchopulmonary dysplasia, intraventricular hemorrhage and late onset sepsis were significant with patients with ROP. Conclusions: The frequency of ROP reported here is higher than the reported in Mexican population, with less cases of severe ROP. The neonatal surveillance in babies with less birth weight and gestational age is important to decrease the incidence of ROP.

Clinical and epidemiological profile of premature patients in the ambulatory of pediatric ophthalmology of a university health service

INTRODUCTION: Retinopathy of prematurity (ROP) is a vasoproliferative disorder of the retina that affects low birth weight preterm babies and is the leading cause of blindness in children in developed and developing countries. OBJECTIVE: Considering the importance of evaluating the pathology, this study aimed to carry out an epidemiological analysis of premature patients referred to the Pediatric Ophthalmology sector of Centro Universitário FMABC. METHODS: Retrospective study of the medical records of patients referred to the Pediatric Ophthalmology sector of Centro Universitário FMABC, from March 2017 to December 2017, for ophthalmological evaluation due to suspected ROP (59 medical records). RESULTS: Of the total of 43 eyes with the disease, two eyes fit in Zone II and 41 in Zone III. Seventeen eyes were classified as Stage 1, 16 as Stage 2, 4 as Stage 3, 4 as Stage 4 and 2 as Stage 5. CONCLUSION: The development of ROP was inversely proportional to weight and gestational age at birth. Treatment proved to be less prevalent in the disease.

Ocular sequelae of retinopathy of prematurity in Manaus, Amazonas / Sequelas oculares estruturais da retinopatia da prematuridade em crianças em Manaus, Amazonas

Abstract Purpose: To evaluate the structural ocular sequelae of retinopathy of prematurity in children at risk for the disease in Manaus, Amazonas, Brazil. Methods: A prospective, cohort-type, observational study was conducted. Fifty-seven children at risk for this retinopathy, who were born in the public health system facilities, were referred for ophthalmic evaluation at a secondary eye hospital. Inclusion criteria were gestational age ≤ 32 weeks and/or birth weight ≤ 1500 g. Results: Eighteen (31.6%) children were diagnosed with any stage of retinopathy of prematurity during the study period, and four (7.0%) of them needed treatment. Structural ocular sequelae were identified in 3 of 56 children (5.3%), consisting of peripheral retinal detachment with macular dragging in 3 eyes of 3 children and macular involving retinal detachment in 2 eyes of 2 children. Associations between occurrence of retinopathy of prematurity and birth weight, gestational age at birth and days in oxygen were observed (p<0.05). Indication of treatment was associated with birth weight (p<0.05). Conclusion: Retinopathy of prematurity stands out as an important cause of avoidable blindness in Amazonas, affected 31.6 % of children at risk in the present paper, which in this same context, led to ocular strucutral sequelae in about 5.3% of these infants, either peripheral or macular involving retinal detachment. A local program for screening and treatment of the population at risk is necessary in order to avoid blindness from this disease, providing care to the public health system users that contemplates equality and universality of access.

Resumo Objetivo: Avaliar as sequelas oculares estruturais da retinopatia da prematuridade em crianças com risco para a doença em Manaus, Amazonas, Brasil. Métodos: Foi conduzido um estudo observacional prospectivo, do tipo coorte. Cinquenta e sete crianças que nasceram em um hospital público, com risco desta retinopatia, foram referênciadas para avaliação oftamológica em um hospital de olhos secundário. Critérios de inclusão foram idade gestacional ≤ 32 semanas e/ou peso ao nascer ≤ 1500 g. Resultados: Dezoito (31.6%) crianças foram diagnosticadas com retinopatia da prematuridade em qualquer estágio durante o período de estudo, quatro (7.0%) delas precisaram de tratamento. Sequelas oculares estruturais foram identificadas em 3 de 56 (5.3%) crianças, consistindo de descolamento de retina periférico com tração macular em 3 olhos de 3 crianças e descolamento de retina envolvendo a mácula em 2 olhos de 2 crianças. Associações entre a ocorrência de retinopatia da prematuridade e peso, idade gestacional e dias em oxigênio foram observadas (p<0.05). Indicação de tratamento foi associada com peso ao nascer (p<0.05). Conclusão: A retinopatia da prematuridade constitui uma importante causa de cegueira prevenível no Amazonas, acometeu 31.6% das crianças em risco no presente estudo, que neste mesmo contexto, levou a seqüelas estruturais oculares em cerca de 5.3% destas, tanto descolamento de retina periférico quanto envolvendo a mácula. Um programa local de triagem e tratamento da população de risco é necessário a fim de evitar a cegueira por esta comorbidade em Manaus, proporcionando cuidados aos usuários do sistema público de saúde que contemplem a igualdade e universalidade de acesso.