Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)

M&aacute;rio Martins dos Santos Motta1, Jo&atilde;o Borges Fortes Filho2, Jacqueline Coblentz1, Claudia Amaral Fiorot31Department of Ophthalmology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro RJ, Brazil; 2Department of Ophthalmology, Faculty of Medicine,...

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Autores principales:	Fiorot CA, Coblentz J, Fortes Filho JB, Motta MMS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/5781acaf9b4f42389ca388837ad2f678
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spelling	oai:doaj.org-article:5781acaf9b4f42389ca388837ad2f6782021-12-02T02:09:40ZMultiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)1177-54671177-5483https://doaj.org/article/5781acaf9b4f42389ca388837ad2f6782011-12-01T00:00:00Zhttp://www.dovepress.com/multiple-pregnancies-and-its-relationship-with-the-development-of-reti-a8909https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483M&aacute;rio Martins dos Santos Motta1, Jo&atilde;o Borges Fortes Filho2, Jacqueline Coblentz1, Claudia Amaral Fiorot31Department of Ophthalmology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro RJ, Brazil; 2Department of Ophthalmology, Faculty of Medicine, Federal University of Rio Grande do Sul and Hospital de Cl&iacute;nicas de Porto Alegre, Porto Alegre RS, Brazil; 3Hospital Naval Marc&iacute;lio Dias, Rio de Janeiro RJ, BrazilBackground: The influence of multiple gestation on the occurrence of retinopathy of prematurity (ROP) is still not completely understood.Objectives: To verify the incidence of any stage of ROP and threshold ROP in singletons and in multiple gestation among preterm infants.Methods: This was an institutional, prospective, and descriptive cohort study, which included preterm newborns with birth weight (BW) of 1500 g or less and/or gestational age (GA) of 32 weeks or less, as admitted to the neonatal units at Laranjeiras and Amparo Hospitals in Rio de Janeiro, Brazil, between January 2001 and July 2005, and whom remained hospitalized for at least 28 days. There were no exclusion criteria. Patients were divided into two groups: Group 1 included multiples; and Group 2 consisted of singletons.Results: A total of 159 infants that remained in neonatal unit care for at least 28 days were included in this study. Group 1 comprised 56 (35%) multiples; and Group 2 comprised 103 (65%) singletons. Mean BW was 1072 g &plusmn; 272 and 1089 g &plusmn; 282 in Groups 1 and 2, respectively (analysis of variance [ANOVA] P &gt; 0.05). Mean GA among multiple gestation (Group 1) was 29 weeks &plusmn; 2.1; and 29 weeks &plusmn; 2.4 among singletons (Group 2) (ANOVA P &gt; 0.05). Days in oxygen therapy ranged from 0 to 188 days. Median among Group 1 was 15 days, while median in Group 2 was 10 days (Kruskal&ndash;Wallis P &gt; 0.05). Any stage ROP was detected in 66 (41.5%) of the whole cohort comprising 159 babies. Among the 56 multiples, 30 (53.6%) achieved any stage ROP, and among 103 singletons, 36 (35%) achieved any stage ROP (Chi-square test P &lt; 0.05). Threshold ROP occurred in 12 (7.5%) of the 159 patients included. Three (5.3%) patients from Group 1 and nine (8.7%) patients in Group 2 reached threshold ROP needing laser treatment (Fisher&rsquo;s exact test P &gt; 0.05).Conclusion: This study showed higher frequency of any stage of ROP in twins and triplets but not regarding threshold disease. Because of the relatively small number of patients in this sample, other studies are necessary to determine if gemelarity plays a role in the occurrence of ROP.Keywords: prematurity, retinopathy of prematurity, gemelarity, prevalenceFiorot CACoblentz JFortes Filho JBMotta MMSDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2011, Iss default, Pp 1783-1787 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Fiorot CA Coblentz J Fortes Filho JB Motta MMS Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)
description	M&aacute;rio Martins dos Santos Motta1, Jo&atilde;o Borges Fortes Filho2, Jacqueline Coblentz1, Claudia Amaral Fiorot31Department of Ophthalmology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro RJ, Brazil; 2Department of Ophthalmology, Faculty of Medicine, Federal University of Rio Grande do Sul and Hospital de Cl&iacute;nicas de Porto Alegre, Porto Alegre RS, Brazil; 3Hospital Naval Marc&iacute;lio Dias, Rio de Janeiro RJ, BrazilBackground: The influence of multiple gestation on the occurrence of retinopathy of prematurity (ROP) is still not completely understood.Objectives: To verify the incidence of any stage of ROP and threshold ROP in singletons and in multiple gestation among preterm infants.Methods: This was an institutional, prospective, and descriptive cohort study, which included preterm newborns with birth weight (BW) of 1500 g or less and/or gestational age (GA) of 32 weeks or less, as admitted to the neonatal units at Laranjeiras and Amparo Hospitals in Rio de Janeiro, Brazil, between January 2001 and July 2005, and whom remained hospitalized for at least 28 days. There were no exclusion criteria. Patients were divided into two groups: Group 1 included multiples; and Group 2 consisted of singletons.Results: A total of 159 infants that remained in neonatal unit care for at least 28 days were included in this study. Group 1 comprised 56 (35%) multiples; and Group 2 comprised 103 (65%) singletons. Mean BW was 1072 g &plusmn; 272 and 1089 g &plusmn; 282 in Groups 1 and 2, respectively (analysis of variance [ANOVA] P &gt; 0.05). Mean GA among multiple gestation (Group 1) was 29 weeks &plusmn; 2.1; and 29 weeks &plusmn; 2.4 among singletons (Group 2) (ANOVA P &gt; 0.05). Days in oxygen therapy ranged from 0 to 188 days. Median among Group 1 was 15 days, while median in Group 2 was 10 days (Kruskal&ndash;Wallis P &gt; 0.05). Any stage ROP was detected in 66 (41.5%) of the whole cohort comprising 159 babies. Among the 56 multiples, 30 (53.6%) achieved any stage ROP, and among 103 singletons, 36 (35%) achieved any stage ROP (Chi-square test P &lt; 0.05). Threshold ROP occurred in 12 (7.5%) of the 159 patients included. Three (5.3%) patients from Group 1 and nine (8.7%) patients in Group 2 reached threshold ROP needing laser treatment (Fisher&rsquo;s exact test P &gt; 0.05).Conclusion: This study showed higher frequency of any stage of ROP in twins and triplets but not regarding threshold disease. Because of the relatively small number of patients in this sample, other studies are necessary to determine if gemelarity plays a role in the occurrence of ROP.Keywords: prematurity, retinopathy of prematurity, gemelarity, prevalence
format	article
author	Fiorot CA Coblentz J Fortes Filho JB Motta MMS
author_facet	Fiorot CA Coblentz J Fortes Filho JB Motta MMS
author_sort	Fiorot CA
title	Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)
title_short	Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)
title_full	Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)
title_fullStr	Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)
title_full_unstemmed	Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)
title_sort	multiple pregnancies and its relationship with the development of retinopathy of prematurity (rop)
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/5781acaf9b4f42389ca388837ad2f678
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Multiple pregnancies and its relationship with the development of retinopathy of prematurity (ROP)

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