{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T00:49:34Z","timestamp":1771548574019,"version":"3.50.1"},"reference-count":19,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2018,8,8]],"date-time":"2018-08-08T00:00:00Z","timestamp":1533686400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Aust NZ J Obst Gynaeco"],"published-print":{"date-parts":[[2019,6]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To examine the association between inter\u2010twin delivery interval and short\u2010term perinatal outcomes of the second twin after vaginal delivery of the first twin.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Retrospective cohort study including twin pregnancies with a vaginal delivery of the first twin between January 2011 and September 2017 in a tertiary hospital in Melbourne, Australia. The main outcome measure was a composite of adverse neonatal outcome (at least one of perinatal death, admission to neonatal intensive care unit (<jats:styled-content style=\"fixed-case\">NICU<\/jats:styled-content>), endotracheal intubation, Apgar &lt;7 at five minutes and cord lactate &gt;4.0 mmol\/L). Proportions of adverse outcomes for the second twin were compared between groups of intervals \u2264 or &gt;10 and \u2264 or &gt;30\u00a0min.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The composite adverse neonatal outcome occurred in 201 (58.2%) and a caesarean section occurred in seven cases (2%) of the 345 pregnancies included. Delivery interval was associated with higher cord lactate. Low Apgar scores were more frequent with intervals &gt;30\u00a0min (17.9% vs 6.6%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.03), as well as caesarean section for the second twin (10.7% vs 1.3%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.01). Composite adverse outcome and admission to <jats:styled-content style=\"fixed-case\">NICU<\/jats:styled-content> were not significantly influenced by the delivery interval. Predictors of adverse outcome were gestational age, abnormal cardiotocography and breech delivery of the second twin.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The inter\u2010twin delivery interval is associated with higher rates of low Apgar scores and higher cord lactate for the second twin. These associations do not translate into higher rates of admission to <jats:styled-content style=\"fixed-case\">NICU<\/jats:styled-content> and their long\u2010term clinical implications are uncertain.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ajo.12867","type":"journal-article","created":{"date-parts":[[2018,8,8]],"date-time":"2018-08-08T10:04:03Z","timestamp":1533722643000},"page":"375-379","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Inter\u2010twin delivery interval, short\u2010term perinatal outcomes and risk of caesarean for the second twin"],"prefix":"10.1111","volume":"59","author":[{"given":"Ronit","family":"Cukierman","sequence":"first","affiliation":[{"name":"Department of Obstetrics &amp; Gynaecology Monash Health Monash Medical Centre  Melbourne Victoria Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah","family":"Heland","sequence":"additional","affiliation":[{"name":"Department of Obstetrics &amp; 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