{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T19:05:59Z","timestamp":1774551959203,"version":"3.50.1"},"reference-count":26,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2016,2,2]],"date-time":"2016-02-02T00:00:00Z","timestamp":1454371200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet & Gyne"],"published-print":{"date-parts":[[2016,2]]},"abstract":"ABSTRACT<\/jats:title>Objective<\/jats:title>To determine the association between sonographic assessment of fetal biparietal diameter (BPD<\/jats:styled-content>) and pregnancy outcome.<\/jats:p><\/jats:sec>Methods<\/jats:title>This was a retrospective cohort study of pregnancies at 37\u201342 weeks of gestation which had antepartum sonographic measurement of BPD<\/jats:styled-content> within 7 days before delivery. Eligibility was limited to singleton pregnancies with neither known structural or chromosomal abnormalities nor prelabor Cesarean delivery (CD<\/jats:styled-content>). The association of BPD<\/jats:styled-content> with outcome was analyzed using multivariate logistic regression, receiver\u2013operating characteristics curves and stratification according to BPD<\/jats:styled-content> quartiles.<\/jats:p><\/jats:sec>Results<\/jats:title>In total, 3229 women were eligible for analysis, of whom 2483 (76.9%) had a spontaneous vaginal delivery (SVD<\/jats:styled-content>), 418 (12.9%) underwent operative vaginal delivery (OVD<\/jats:styled-content>) and 328 (10.2%) underwent CD<\/jats:styled-content>. The mean BPD<\/jats:styled-content> in the obstetric intervention groups (OVD<\/jats:styled-content> and CD<\/jats:styled-content>) was significantly higher than that in the SVD<\/jats:styled-content> group (P<\/jats:italic> < 0.001). After adjusting for confounders, increased BPD<\/jats:styled-content> was an independent risk factor such that higher values of BPD<\/jats:styled-content> were associated with progressively higher risk of obstetric intervention (adjusted odds ratio, 1.05 for each 1\u2010mm increase in BPD<\/jats:styled-content> (95% CI<\/jats:styled-content>, 1.02\u20131.09)), but no clear cut\u2010off value for obstetric intervention was found. The fourth quartile group (BPD<\/jats:styled-content> \u2265 97 mm) was associated with a significantly lower SVD<\/jats:styled-content> rate (P<\/jats:italic> < 0.001) and higher OVD<\/jats:styled-content> rate (P<\/jats:italic> = 0.04), relative to the first (BPD<\/jats:styled-content> 88\u201390 mm) and second (BPD<\/jats:styled-content> 91\u201393 mm) quartile groups, with no apparent adverse impact on immediate neonatal outcome.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>Increased BPD<\/jats:styled-content> within the week prior to delivery is an independent risk factor such that higher values of BPD<\/jats:styled-content> are associated with progressively higher risk of obstetric intervention; however, in our experience, no adverse neonatal outcome resulted from such intervention. Thus, increased BPD<\/jats:styled-content> should not discourage a trial of vaginal delivery. Copyright \u00a9 2015 ISUOG. Published by John Wiley & Sons Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/uog.14837","type":"journal-article","created":{"date-parts":[[2015,2,26]],"date-time":"2015-02-26T11:19:45Z","timestamp":1424949585000},"page":"217-223","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Association of fetal biparietal diameter with mode of delivery and perinatal outcome"],"prefix":"10.1002","volume":"47","author":[{"given":"R.","family":"Bardin","sequence":"first","affiliation":[{"name":"Helen Schneider Hospital for Women, Rabin Medical Center Petach\u2010Tikva Israel"},{"name":"The Sackler Faculty of Medicine, Tel Aviv University Tel Aviv Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Aviram","sequence":"additional","affiliation":[{"name":"Helen Schneider Hospital for Women, Rabin Medical Center Petach\u2010Tikva Israel"},{"name":"The Sackler Faculty of Medicine, Tel Aviv University Tel 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