{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T12:59:54Z","timestamp":1782997194181,"version":"3.54.5"},"reference-count":24,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2007,5,16]],"date-time":"2007-05-16T00:00:00Z","timestamp":1179273600000},"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":["BJOG"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:p><jats:bold>Objective\u2002<\/jats:bold> To describe the variable disease expression and the patterns of development of major maternal morbidity and HELLP (haemolysis, elevated liver enzymes and low platelet count) syndrome in women with different subtypes of hypertensive disorders of pregnancy.<\/jats:p><jats:p><jats:bold>Design\u2002<\/jats:bold> Prospective cohort study.<\/jats:p><jats:p><jats:bold>Setting\u2002<\/jats:bold> Two university hospitals, tertiary care centres.<\/jats:p><jats:p><jats:bold>Population\u2002<\/jats:bold> Two hundred and sixteen women participating in a randomised trial of temporising management in early\u2010onset hypertensive disease (PETRA trial). Women were between 24 and 34 completed weeks and had either HELLP syndrome, severe pre\u2010eclampsia, eclampsia or hypertension and fetal growth restriction. Women were delivered in the event of fetal marked heart rate abnormalities, pulmonary oedema, therapy\u2010resistant hypertension or recurrent HELLP syndrome.<\/jats:p><jats:p><jats:bold>Methods\u2002<\/jats:bold> Trial data were reanalysed to assess the time of onset of major maternal morbidity (e.g. pulmonary oedema, liver haematoma), HELLP syndrome and clinical disease. Associations between clinical parameters and prolongation of pregnancy were explored using logistic regression.<\/jats:p><jats:p><jats:bold>Main outcome measures\u2002<\/jats:bold> Diagnosis from admittance to discharge, major maternal morbidity and prolongation of pregnancy.<\/jats:p><jats:p><jats:bold>Results\u2002<\/jats:bold> The median time to delivery or fetal death was 8.2 (range 0.1\u201344) days. At study entry, 56 women (26%) had more than one diagnosis; this increased to 171 women (79%) by the time of discharge. The incidence of major maternal morbidity (total 26) was 4.2% at 2\u20134 days after inclusion and a mean of 1.7% (range 0\u20132%) thereafter per time frame of 3 days. The mean incidence of new or recurrent HELLP syndrome episodes was 5.5% (range 1.9\u20138.7%) per time frame of 3 days during the first 3 weeks after inclusion.<\/jats:p><jats:p><jats:bold>Conclusions\u2002<\/jats:bold> Pre\u2010eclampsia is a dynamic disease, with extensive overlap of subtypes of the syndrome. Prolongation of pregnancy in early\u2010onset hypertensive disorders results in the development of further HELLP syndrome episodes and reversible major maternal morbidity but may improve perinatal healthy survival.<\/jats:p>","DOI":"10.1111\/j.1471-0528.2007.01319.x","type":"journal-article","created":{"date-parts":[[2007,5,16]],"date-time":"2007-05-16T16:56:37Z","timestamp":1179334597000},"page":"741-750","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Dynamics and incidence patterns of maternal complications in early\u2010onset hypertension of pregnancy"],"prefix":"10.1111","volume":"114","author":[{"given":"W","family":"Ganzevoort","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Rep","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"GJ","family":"Bonsel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"JIP","family":"De Vries","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H","family":"Wolf","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"PETRA investigators","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,5,16]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1081\/PRG-100100138"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(93)90043-I"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(86)90266-8"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2000.106975"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(98)70146-2"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(96)70056-X"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2000.tb11617.x"},{"key":"e_1_2_7_9_2","first-page":"1070","article-title":"Aggressive or expectant management for patients with severe preeclampsia between 28\u201034 weeks\u2019 gestation: a randomized controlled trial","volume":"76","author":"Odendaal HJ","year":"1990","journal-title":"Obstet Gynecol"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(94)90104-X"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2000.tb11616.x"},{"key":"e_1_2_7_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/0301-2115(95)02260-0"},{"key":"e_1_2_7_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-2115(97)00146-2"},{"key":"e_1_2_7_14_2","doi-asserted-by":"publisher","DOI":"10.1081\/PRG-100100137"},{"key":"e_1_2_7_15_2","first-page":"495","article-title":"Prediction of maternal complications and adverse infant outcome at admission for temporizing management of early onset severe hypertensive disorders of pregnancy","volume":"2006","author":"Ganzevoort W","journal-title":"Am J Obstet Gynecol"},{"key":"e_1_2_7_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-2115(00)00332-8"},{"key":"e_1_2_7_17_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2000.104224"},{"key":"e_1_2_7_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2004.06.061"},{"key":"e_1_2_7_19_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2005.00687.x"},{"key":"e_1_2_7_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(88)90090-7"},{"key":"e_1_2_7_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(90)90376-I"},{"key":"e_1_2_7_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(92)91342-6"},{"key":"e_1_2_7_23_2","first-page":"1453","article-title":"Hypocalcemic delirium due to magnesium sulphate therapy in a pregnant woman with pre\u2010eclampsia","volume":"146","author":"Ganzevoort JW","year":"2002","journal-title":"Ned Tijdschr Geneeskd"},{"key":"e_1_2_7_24_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1995.tb09062.x"},{"key":"e_1_2_7_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-2115(00)00366-3"}],"container-title":["BJOG: An International Journal of Obstetrics &amp; 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