{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T22:22:57Z","timestamp":1791843777727,"version":"4.3.4"},"reference-count":36,"publisher":"Public Library of Science (PLoS)","issue":"8","license":[{"start":{"date-parts":[[2021,8,18]],"date-time":"2021-08-18T00:00:00Z","timestamp":1629244800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\"><jats:title>Objective<\/jats:title><jats:p>The present study seeks to assess the impact of gestational hypertensive disorders on premature newborns below 34 weeks and to establish the main morbidities and mortality in the neonatal period and at 18 months.<\/jats:p><\/jats:sec><jats:sec id=\"sec002\"><jats:title>Materials and methods<\/jats:title><jats:p>A retrospective observational study was carried out with 695 premature newborns of gestational age (GA) between 24 and 33 weeks and 6 days, born alive in the Neonatal ICU of Bras\u00edlia\u2019s Mother and Child Hospital (HMIB), in the period from January 1, 2014, to July 31, 2019. In total, 308 infants were born to hypertensive mothers (G1) and 387 to normotensive mothers (G2). Twin pregnancies and diabetic patients with severe malformations were excluded. Outcomes during hospitalization and outcomes of interest were evaluated: respiratory distress syndrome (RDS), brain ultrasonography, diagnosis of bronchopulmonary dysplasia (BPD), diagnosis of necrotizing enterocolitis, retinopathy of prematurity, breastfeeding rate at discharge, survival at discharge and at 18 months of chronological age and relationship between weight and gestational age.<\/jats:p><\/jats:sec><jats:sec id=\"sec003\"><jats:title>Results<\/jats:title><jats:p>Newborns with hypertensive mothers had significantly lower measurements of birth weight and head circumference. The G1 group had a higher risk small for gestational age (OR 2.4; CI 95% 1.6\u20133.6; p &lt;0.00), as well as a greater risk of being born with a weight less than 850 g (OR 2.4; 95% CI 1.2\u20133.5; p &lt;0.00). Newborns of mothers with hypertension presented more necrotizing enterocolitis (OR 2.0; CI 95% 1.1\u20133.7); however, resuscitation in the delivery room and the need to use surfactant did not differ between groups, nor did the length of stay on mechanical ventilation, or dependence on oxygen at 36 weeks of gestational age. Survival was better in newborns of normotensive mothers, and this was a protective factor against death (OR 0.7; 95% CI 0.5\u20130.9; p &lt;0.01). In the follow-up clinic, survival at 18 months of chronological age was similar between groups, with rates of 95.3% and 92.1% among hypertensive and normotensive mothers, respectively. Exclusive breastfeeding at discharge was 73.4% in the group of hypertensive women and 77.3% in the group of normotensive mothers. There were no significant differences between groups.<\/jats:p><\/jats:sec><jats:sec id=\"sec004\"><jats:title>Conclusion<\/jats:title><jats:p>Among the analyzed outcomes, arterial hypertension during pregnancy can increase the risk of low weight, small babies for gestational age (SGA), deaths in the neonatal period and enterocolitis, with no differences in weight and survival at 18 months of chronological age. Arterial hypertension presents a high risk of prematurity in the neonatal period, with no difference at 18 months of age.<\/jats:p><\/jats:sec>","DOI":"10.1371\/journal.pone.0255783","type":"journal-article","created":{"date-parts":[[2021,8,18]],"date-time":"2021-08-18T18:04:25Z","timestamp":1629309865000},"page":"e0255783","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":29,"title":["Hypertension induced by pregnancy and neonatal outcome: Results from a retrospective cohort study in preterm under 34 weeks"],"prefix":"10.1371","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7851-375X","authenticated-orcid":true,"given":"Marta David","family":"Rocha de Moura","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulo Roberto","family":"Margotto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karina","family":"Nascimento Costa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Rita","family":"Carvalho Garbi Novaes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2021,8,18]]},"reference":[{"key":"pone.0255783.ref001","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1016\/j.ccl.2019.04.008","article-title":"Hypertensive disorders of pregnancy","volume":"37","author":"S Shah","year":"2019","journal-title":"Cardiol Clin"},{"key":"pone.0255783.ref002","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1038\/hr.2016.126","article-title":"Epidemiology of hypertensive disorders in pregnancy: prevalence, risk factors, predictors and prognosis","volume":"40","author":"M Umesawa","year":"2017","journal-title":"Hypertens Res"},{"key":"pone.0255783.ref003","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1016\/j.preghy.2018.05.004","article-title":"The hypertensive disorders of pregnancy: ISSHP classification, diagnosis & management recommendations for international practice","volume":"13","author":"MA Brown","year":"2018","journal-title":"Pregnancy Hypertens"},{"key":"pone.0255783.ref004","doi-asserted-by":"crossref","first-page":"e15677","DOI":"10.1097\/MD.0000000000015677","article-title":"Hypertensive disorders during pregnancy and elevated blood pressure in the offspring: a systematical review and meta-analysis protocol","volume":"98","author":"H Yu","year":"2019","journal-title":"Medicine"},{"key":"pone.0255783.ref005","doi-asserted-by":"crossref","first-page":"200","DOI":"10.1016\/j.preghy.2018.10.006","article-title":"Severe hypertension, preeclampsia and small for gestational age in women with chronic hypertension diagnosed before and during pregnancy","volume":"14","author":"D Nzelu","year":"2018","journal-title":"Pregnancy Hypertens"},{"key":"pone.0255783.ref006","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/j.preghy.2018.08.452","article-title":"Diagnosis of white coat hypertension and pregnancy outcomes","volume":"14","author":"\u00c2 Rodrigues","year":"2018","journal-title":"Pregnancy Hypertens"},{"key":"pone.0255783.ref007","doi-asserted-by":"crossref","first-page":"607","DOI":"10.1007\/s00404-016-4281-9","article-title":"Elective delivery versus expectant management for pre-eclampsia: a meta-analysis of RCTs","volume":"295","author":"Y Wang","year":"2017","journal-title":"Arch Gynecol Obstet"},{"key":"pone.0255783.ref008","doi-asserted-by":"crossref","first-page":"212","DOI":"10.1080\/14767058.2017.1376643","article-title":"Adverse maternal and neonatal outcomes in women with preeclampsia in Iran","volume":"32","author":"R Omani-Samani","year":"2019","journal-title":"J Matern Fetal Neonatal Med"},{"key":"pone.0255783.ref009","doi-asserted-by":"crossref","first-page":"677","DOI":"10.29271\/jcpsp.2018.09.677","article-title":"Elective induction versus expectant management of mild pre-eclampsia at term","volume":"28","author":"MU Nisa","year":"2018","journal-title":"J Coll Physicians Surg Pak"},{"key":"pone.0255783.ref010","doi-asserted-by":"crossref","first-page":"1205","DOI":"10.1080\/14767058.2017.1401996","article-title":"How does preeclampsia affect neonates? 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