{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T16:26:19Z","timestamp":1790007979380,"version":"4.0.1"},"reference-count":13,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2010,12,31]],"date-time":"2010-12-31T00:00:00Z","timestamp":1293753600000},"content-version":"vor","delay-in-days":1309,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Objective<\/jats:italic>. The aim of this study was to analyse infant mortality among infants born extremely preterm in relation to mode of delivery, maternal diagnosis, and different institutional policies. <jats:italic>Methods<\/jats:italic>. We conducted a national tertiary health care center study using Swedish Medical Birth Register (MBR) data from 1990 to 2002, to examine the 2,094 live births of infants at 23+0 to 27+6 weeks gestation. We assessed the association between mode of delivery, gestational age (GA), calendar year, maternal condition, and institutional policies on infant mortality outcome. <jats:italic>Results<\/jats:italic>. At 23\u201325 weeks, 38% of infants (range: 34\u201369%) were delivered by cesarean section (CS), while at 26\u201327 weeks, 66% (59\u201380%) were delivered by CS. The CS rate for fetal or maternal indications was 98% in cases of pre\u2010eclampsia\/eclampsia, 42% for premature rupture of membranes (PROM), 68% for hemorrhage, 76% for PROM+hemorrhage, 56% for breech presentation, and 30% for preterm vertex with no other complications. After cases of pre\u2010eclampsia\/eclampsia were excluded, vaginal delivery was associated with a small increase of risk for infant death. Vaginal delivery was associated with a significantly increased risk for infant death in breech presentations and multiple births, while vaginal delivery posed a non\u2010significant risk increase for PROM and hemorrhage. For preterm vertex without any other complications, 4 out of 5 infants were delivered vaginally without any risk increase. <jats:italic>Conclusion<\/jats:italic>. This study reports high CS rates for very preterm births at Swedish hospitals. In performing CS for very preterm infants, this study suggests a survival advantage for certain maternal conditions, but not for preterm labor with a vertex presentation without other obstetrical complications.<\/jats:p>","DOI":"10.1080\/00016340701371306","type":"journal-article","created":{"date-parts":[[2007,5,24]],"date-time":"2007-05-24T00:54:33Z","timestamp":1179968073000},"page":"693-700","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":44,"title":["Infant mortality of very preterm infants by mode of delivery, institutional policies and maternal diagnosis"],"prefix":"10.1111","volume":"86","author":[{"given":"U.","family":"H\u00d6GBERG","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.A.","family":"HOLMGREN","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2010,12,31]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.114.1.58"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.102.4.893"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(97)70386-7"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000192400.31757.a6"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1996.tb09628.x"},{"key":"e_1_2_5_7_2","doi-asserted-by":"crossref","unstructured":"Grant A Glazener CM.Elective caesarean section versus expectant management for delivery of the small baby.Cochrane Database Syst Rev2001 (2):CD000078.","DOI":"10.1002\/14651858.CD000078"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2002.126985"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0412.2001.080006525.x"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-3016.1999.00171.x"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.1053\/siny.1999.0001"},{"key":"e_1_2_5_12_2","doi-asserted-by":"publisher","DOI":"10.1203\/00006450-200508000-00102"},{"key":"e_1_2_5_13_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.114.1.264"},{"key":"e_1_2_5_14_2","doi-asserted-by":"publisher","DOI":"10.1080\/00016340600969366"}],"container-title":["Acta Obstetricia et Gynecologica Scandinavica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1080%2F00016340701371306","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1080\/00016340701371306","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,12]],"date-time":"2023-10-12T01:45:52Z","timestamp":1697075152000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1080\/00016340701371306"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,6]]},"references-count":13,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2007,6]]}},"alternative-id":["10.1080\/00016340701371306"],"URL":"https:\/\/doi.org\/10.1080\/00016340701371306","archive":["Portico"],"relation":{},"ISSN":["0001-6349","1600-0412"],"issn-type":[{"value":"0001-6349","type":"print"},{"value":"1600-0412","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,6]]},"assertion":[{"value":"2010-12-31","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}