Importance of Birth Weight as a Risk Factor for Severe Retinopathy of Prematurity When Gestational Age Is 30 or More Weeks

Introduction: Because of increasing the population of premature infants due to improving neonatal care we try to find other independent criteria in addition to birth weight and gestational age to reduce the number of infants who need a retinopathy of prematurity (ROP) screening examination. Methods: This is a retrospective cross-sectional study, included 150 preterm infants with gestational age of ≤ 32 weeks or birth weight ≤ 1500 g or receives oxygen therapy for more than 2 days, who were examined from the fourth week of life for ROP in Tabriz Al-Zahra hospital’s neonatal intensive care unit (NICU), from March 2017 to January 2018. All infants with other risk factors such as multi gestational pregnancy, blood transfusion or exchange, phototherapy, underlying disease, cerebral hemorrhage, chronic lung disease and sepsis were excluded from the study. Infants divided to two group ROP (n=47) and non-ROP (n=133) and their 5-minute Apgar score was Apgar score was compared as an independent risk factor. Exploratory data analysis was performed using descriptive measures with independent samples t tests. Kolmogorov-Smirnov tests were used to test the normality of data distribution. Results: The mean 5-minute Apgar scores were statistically lower in ROP group (5.4±2.3) than non-ROP group 6.2±2.1 (P value=0.041). Conclusion: Apgar score was statistically significant, but in light of the very close results obtained, it seems prudent to consider an independent risk factor.

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Risk factor and outcome of retinopathy of prematurity among premature babies admitted to tertiary care hospital: a prospective observational study

International Journal of Contemporary Pediatrics ◽

10.18203/2349-3291.ijcp20185188 ◽

2018 ◽

Vol 6 (1) ◽

pp. 97

Author(s):

Vijaykumar Shegji ◽

Sharanabasappa S. Dhanwadkar ◽

S. S. Kalyanshettar ◽

S. V. Patil ◽

Ashwini Kumara N. B

Keyword(s):

Risk Factor ◽

Birth Weight ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

Tertiary Care ◽

Medical College Hospital ◽

Research Centre ◽

Age Group ◽

College Hospital ◽

Medical College

Background: Retinopathy of prematurity is a multifactorial vaso-proliferative retinal disorder that increases in incidence with gestational age. ROP is a vascular retinal disease that can cause low vision or blindness. ROP is a common blinding disease in children in the developed world despite current treatment and is becoming increasingly prevalent in the developing world. The purpose of this study was to determine risk factor and outcome of ROP among premature infants admitted to NICU of Shri B M Patil Medical College Hospital and Research Centre-Vijaypur.Methods: Preterm babies less than 35 weeks of gestation or less than 2000grams of birth weight delivered in or referred to Department of Paediatrics at B. L. D. E. U’s Shri B M Patil Medical College Hospital and Research Centre, Vijayapur.Results: Of 153 neonates screened 49 infants had ROP. The incidence of ROP in this study was found to be 32.02% among the babies screened. 25 babies were in stage 1(51.0%) 19 babies were in stage 2(38.8%) two babies from stage 2 progressed to plus disease and 5 babies with APROP (10.2%).Conclusions: The present study reflects the problem of ROP in a tertiary care centre. The incidence of ROP in our study was 32.02 % for any stage. The percentage of neonates who had ROP in the gestational age group ≤32 weeks 36.5%, 24.1%in the 32-36 weeks gestational age group and 40 % in >35 weeks of gestational age group. A statistically significant correlation between birth weight and ROP was also shown in our study. Our study showed greater risk of developing ROP with birth weights less than 1750g. There exists a statistically very high significant correlation between ROP and supplemental oxygen. Also, there is a statistically significant correlation between RDS and ROP.

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Is being small for gestational age a risk factor for retinopathy of prematurity? A study with 345 very low birth weight preterm infants

Jornal de Pediatria ◽

10.2223/jped.1870 ◽

2009 ◽

Vol 85 (1) ◽

pp. 48-54 ◽

Cited By ~ 18

Author(s):

João Borges Fortes Filho ◽

Fabiana Borba Valiatti ◽

Gabriela Unchalo Eckert ◽

Marlene Coelho da Costa ◽

Rita C. Silveira ◽

...

Keyword(s):

Risk Factor ◽

Birth Weight ◽

Low Birth Weight ◽

Preterm Infants ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

Small For Gestational Age ◽

Very Low Birth Weight

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A study of risk factors and their correlation with severity of retinopathy of prematurity: a prospective study

International Journal of Contemporary Pediatrics ◽

10.18203/2349-3291.ijcp20204039 ◽

2020 ◽

Vol 7 (10) ◽

pp. 1984

Author(s):

Bhuvaneshwari C. Yelameli ◽

Ramesh V. Neelannavar ◽

Kiruthika Das

Keyword(s):

Risk Factors ◽

Birth Weight ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

Survival Rates ◽

Wide Field ◽

Maternal Risk ◽

Medical College ◽

Stage 4 ◽

A Prospective Study

Background: Recent advances in neonatal care in the last decade and improved survival rates have resulted in an apparent increase in the incidence of retinopathy of prematurity (ROP), which is the most important cause of preventable blindness in infants. This study was done to identify the risk factors which predispose to ROP and to assess its correlation with severity of ROP.Methods: A total of 140 neonates with gestational age ≤34 weeks, birth weight ≤2000 grams who were admitted at NICU, S. N. Medical College and HSK Hospital, Bagalkot from December 2018 to May 2019 were considered. Babies were assessed and recorded for the risk factors of ROP in a predesigned proforma. ROP screening was performed using wide-field digital imaging on a retcam shuttle (Clarity MSI, USA).Results: A total of 140 babies were examined, and an overall incidence of ROP was 52 (37.1%). 17 (32.7%) had stage 3, 3 (5.8%) had stage 4, and 1 (1.9%) had stage 5. Among the 52 babies with ROP, 19 (51.3%) underwent laser photoablation. Risk factors like gestational age, birth weight, maternal risk factors, apnea, intrauterine growth restriction (IUGR), hypoglycaemia, respiratory distress syndrome (RDS), sepsis, coronary heart disease (CHD), blood transfusion and oxygen requirement duration were significantly associated with ROP. Delay in the establishment of feeds has been associated with ROP (p<0.001).Conclusions: Screening should be intensified in the presence of risk factors which can reduce the incidence of severe stages of ROP as highlighted by this study.

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Retinopathy of Prematurity in A Tertiary Care Hospital in Eastern Nepal

Journal of Nepal Medical Association ◽

10.31729/jnma.213 ◽

2008 ◽

Vol 47 (169) ◽

Author(s):

Srijana Adhikari ◽

B P Badhu ◽

N K Bhatta ◽

R S Rajbhandari ◽

B K Kalakheti

Keyword(s):

Risk Factors ◽

Intensive Care ◽

Birth Weight ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

Neonatal Intensive Care ◽

Tertiary Care Hospital ◽

Tertiary Care ◽

Care Hospital ◽

Screening Criteria

World Health Organization’s Vision 2020 program has recognized Retinopathy of Prematurity(ROP) as an important cause of childhood blindness in industrialized and developing countries. Inthe last few years, it has been identifi ed in many under developed countries as well, as a result ofimproved neonatal intensive care. In Nepal, ROP screening is carried out in a few tertiary hospitalsbut there is no published data on this disease. The purpose of this study was to fi nd out the incidence,severity and risk factors of ROP among infants screened in a tertiary care hospital in the EasternRegion of Nepal.A prospective cohort study was carried out in neonates with gestational age of 34 weeks or less and,or birth weight of 1700 gm or less born over the period of one year. Dilated fundus examination ofall babies was done by indirect ophthalmoscopy between 2-4 weeks after birth and followed up tillthe retinal vascularization was complete. Classifi cation of ROP was done according to internationalclassifi cation (ICROP). Maternal and neonatal risk factors were also noted.A total of 55 babies fulfi lled the screening criteria. ROP was present in 25.45% (n=14) of the babies.Threshold disease was noted in 5.45% (n=3) of the babies screened. Low birth weight (p<0.01)and low gestational age (p<0.01) was signifi cantly associated with the incidence of ROP. Oxygensupplementation (p=<0.01) was an independent risk factor.ROP screening should be performed in all preterm low birth weight infants where there is availabilityof good neonatal intensive care units. The examination should be intensifi ed in those having riskfactors like oxygen. Further studies in the other tertiary care hospitals in Nepal would help toestablish the screening criteria for Nepalese infants.Key words: Retinopathy of prematurity, Eastern Nepal, screening

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New modifications of Swedish ROP guidelines based on 10-year data from the SWEDROP register

British Journal of Ophthalmology ◽

10.1136/bjophthalmol-2019-314874 ◽

2019 ◽

Vol 104 (7) ◽

pp. 943-949 ◽

Cited By ~ 3

Author(s):

Gerd Holmström ◽

Ann Hellström ◽

Lotta Gränse ◽

Marie Saric ◽

Birgitta Sunnqvist ◽

...

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

Neonatal Care ◽

Coverage Rate ◽

Natural Course ◽

Web Based ◽

Postmenstrual Age ◽

Over Time

Background/aimsDuring the last decade, improved neonatal care has resulted in increased survival of the most immature infants and improved health of more mature infants. We hypothesise that this has affected incidence and treatment of retinopathy of prematurity (ROP), enabling guidelines for screening to be modified.MethodsIn Sweden, all infants with gestational age (GA) at birth ≤30 weeks are screened for ROP. Results are registered in a web-based register, Swedish National ROP Register, with a coverage rate of 97%. Incidence of ROP and frequency of treatment, aspects on natural course of ROP and number of examinations, are calculated in relation to GA at birth in infants born during 2008–2017.ResultsOf 7249 infants, 31.9% (2310) had ROP and 6.1% (440) were treated. No infant with GA 30 weeks was treated. Incidence of ROP remained similar, but frequency of treatment increased (p=0.023). Over time, GA and birth weight were reduced in infants with ROP and with treated ROP. In the most immature infants, postmenstrual age was lower and postnatal age was higher when any ROP and stage 3 ROP were first detected (p<0.001). At treatment, postmenstrual but not postnatal age of the infant was associated with GA (p<0.001). During the 10-year period, 46 038 examinations were performed.ConclusionModification of Swedish guidelines is proposed, including only infants with a GA of <30 weeks and postponing the first examination with 1 week in infants with GA 26–29 weeks. This would spare many infants from stressful examinations and reduce eye examinations with at least 20%.

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Retinopathy of prematurity: Prevalence and risk factors

Paediatrica Indonesiana ◽

10.14238/pi45.6.2005.270-4 ◽

2016 ◽

Vol 45 (6) ◽

pp. 270

Author(s):

Rinawati Rohsiswatmo

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

Supplemental Oxygen ◽

Severe Illness ◽

Blood Transfusions ◽

Inclusion Criteria ◽

Cross Sectional ◽

Background Retinopathy ◽

Multiple Blood

Background Retinopathy of prematurity (ROP) is one of the ma-jor causes of infant blindness. There are several factors known asrisk factors for ROP. Recent studies show ROP as a disease ofmultifactorial origin.Objective To report the prevalence of ROP in Cipto MangunkusumoHospital, Jakarta and its relation to several risk factors.Methods A cross-sectional descriptive study was conducted fromDecember 2003-May 2005. All infants with birth weight 2500 gramsor less, or gestational age 37 weeks or less, were enrolled con-secutively and underwent the screening of ROP at 4 to 6 weeks ofchronological age or 31 to 33 weeks of postconceptional age.Result Of 73 infant who met the inclusion criteria, 26% (19 out of73 infant) had ROP in various degrees. About 36.8% (7 out of 19infants) were in stage III or more/threshold ROP. No ROP wasnoted in infants born >35 weeks of gestational age, and birth weight>2100 grams. No severe ROP was found in gestational age >34weeks and birth weight >1600 grams. None of full-term, small forgestational age infants experienced ROP. Birth weight, sepsis,apneu, asphyxia, multiple blood transfusions, and oxygen therapyfor more than 7 days were statistically significant with the develop-ment of ROP. However, using multivariate analysis, only asphyxia,multiple blood transfusions, and oxygen therapy for more than 7days were statistically significant with the development of ROP.Conclusion Screening of ROP should be performed in infantsborn 34 weeks of gestational age and/or birth weight <1600 grams.Infants with birth weight from 1600-<2100 grams need to bescreened only if supplemental oxygen is necessary or with clini-cally severe illness

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High-Dose Erythropoietin in Extremely Low Gestational Age Neonates Does Not Alter Risk of Retinopathy of Prematurity

Neonatology ◽

10.1159/000511262 ◽

2020 ◽

pp. 1-8

Author(s):

Dennis E. Mayock ◽

Zimeng Xie ◽

Bryan A. Comstock ◽

Patrick J. Heagerty ◽

Sandra E. Juul ◽

...

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Retinopathy Of Prematurity ◽

High Frequency ◽

High Dose ◽

Heart Murmur ◽

Treatment Groups ◽

Increased Risk ◽

Gestational Age At Birth ◽

Age At Birth

Introduction: The Preterm Erythropoietin (Epo) Neuroprotection (PENUT) Trial sought to determine the safety and efficacy of early high-dose Epo as a potential neuroprotective treatment. We hypothesized that Epo would not increase the incidence or severity of retinopathy of prematurity (ROP). Methods: A total of 941 infants born between 24–0/7 and 27–6/7 weeks’ gestation were randomized to 1,000 U/kg Epo or placebo intravenously for 6 doses, followed by subcutaneous or sham injections of 400 U/kg Epo 3 times a week through 32 weeks post-menstrual age. In this secondary analysis of PENUT trial data, survivors were evaluated for ROP. A modified intention-to-treat approach was used to compare treatment groups. In addition, risk factors for ROP were evaluated using regression methods that account for multiples and allow for adjustment for treatment and gestational age at birth. Results: Of 845 subjects who underwent ROP examination, 503 were diagnosed with ROP with similar incidence and severity between treatment groups. Gestational age at birth, birth weight, prenatal magnesium sulfate, maternal antibiotic exposure, and presence of heart murmur at 2 weeks predicted the development of any ROP, while being on high-frequency oscillator or high-frequency jet ventilation (HFOV/HFJV) at 2 weeks predicted severe ROP. Conclusion: Early high-dose Epo followed by maintenance dosing through 32 weeks does not increase the risk of any or severe ROP in extremely low gestational age neonates. Gestational age, birth weight, maternal treatment with magnesium sulfate, antibiotic use during pregnancy, and presence of a heart murmur at 2 weeks were associated with increased risk of any ROP. Treatment with HFOV/HFJV was associated with an increased risk of severe ROP.

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