{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T22:25:43Z","timestamp":1740176743926,"version":"3.37.3"},"reference-count":31,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T00:00:00Z","timestamp":1521676800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Australas J Ultrason Med"],"published-print":{"date-parts":[[2018,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Routine third\u2010trimester ultrasound (T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>) is not recommended in evidence\u2010based clinical guidelines despite occurring frequently. This study investigated the incidence, indication for, results and follow\u2010up needs of T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> performed at a Sydney metropolitan teaching hospital.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Audit of T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> amongst singleton pregnancies at St George Hospital, Sydney: retrospective review October\u2013December 2012, prospective cohort with clinician survey February\u2013April 2013. Data included are as follows: maternal demographics, aneuploidy screening results, T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> ordering patterns, results, follow\u2010up management and pregnancy outcomes. Comparison of demographic characteristics and pregnancy outcomes was performed for women undergoing T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> vs. no T3US.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>One thousand and thirty\u2010five women (623 retrospective, 412 prospective) were included, of whom 560 (54%) received at least one T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>. Characteristics of retrospective and prospective cohorts were similar, so combined data are presented. Most initial T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>s were for valid indications (463 of 560; 83%), most frequently low\u2010lying placenta at morphology (19%), reduced fundal height (10%) and to follow\u2010up fetal concerns at morphology ultrasound (9%). One hundred and sixty\u2010two out of 560 (29%) of initial T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> were not normal, predominantly related to accelerated or reduced fetal growth. Detection of <jats:styled-content style=\"fixed-case\">SGA<\/jats:styled-content> babies was significantly higher in the T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> group (32% <jats:styled-content style=\"fixed-case\">SGA<\/jats:styled-content> babies detected vs. 0% if no T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>, P &lt; 0.001). However, overall detection rates remained low, with 5.2% and 3.0% of babies who had a T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> unexpectedly &lt;10<jats:sup>th<\/jats:sup> and &lt;3<jats:sup>rd<\/jats:sup> centile birthweight, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion\/Conclusion<\/jats:title><jats:p>The majority of women received at least one, usually indicated, T3<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content> in routine practice at our metropolitan Sydney hospital. This may impact obstetric care, resource allocation and patient well\u2010being. Detection of small for gestational age fetuses was poor.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ajum.12082","type":"journal-article","created":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T20:11:37Z","timestamp":1521749497000},"page":"96-103","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Selective versus universal third trimester ultrasound: Time for a rethink? 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