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The aim of the present study was to evaluate whether an association exists between the recently reported ZigZag pattern (FHR baseline amplitude changes of\u2009&gt;\u200925\u00a0bpm with a duration of 2\u201330\u00a0min) and asphyxia-related neonatal outcomes in GDM pregnancies.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Intrapartal CTGs were recorded in a one-year cohort of 5150 singleton childbirths. The following CTG changes were evaluated: ZigZag pattern, saltatory pattern, late decelerations, episodes of tachycardia and bradycardia, reduced variability, and uterine tachysystole. The cohort was divided into three groups: women with GDM, women with normal oral glucose tolerance test (OGTT), and women with no OGTT performed. Umbilical artery (UA) blood gases, Apgar scores, neonatal respiratory distress, and neonatal encephalopathy were used as outcome variables.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>GDM was diagnosed in 624 (12.1%), OGTT was normal in 4115 (79.9%), and OGTT was not performed in 411 (8.0%) women. Hypoxia-related ZigZag patterns (OR 1.94, 95% CI 1.64\u20132.34) and late decelerations (OR 1.65, 95% CI 1.27\u20132.13) of FHR, as well as a greater risk of fetal asphyxia (UA pH\u2009&lt;\u20097.10 and\/or UA BE\u2009&lt;\u2009-12.0\u00a0meq\/L and\/or Apgar scores\u2009&lt;\u20097 at 5-min) (OR 6.64, 95% CI 1.84\u201312.03) were observed in those with GDM compared with those without GDM.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>GDM is associated with intrapartal ZigZag pattern and late decelerations, cord blood acidemia and low 5-min Apgar scores at birth indicating increased occurrence of fetal hypoxia in GDM pregnancies.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00592-021-01756-0","type":"journal-article","created":{"date-parts":[[2021,6,21]],"date-time":"2021-06-21T01:02:21Z","timestamp":1624237341000},"page":"1563-1573","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Intrapartal cardiotocographic patterns and hypoxia-related perinatal outcomes in pregnancies complicated by gestational diabetes mellitus"],"prefix":"10.1007","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3289-2173","authenticated-orcid":false,"given":"Mikko","family":"Tarvonen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7790-007X","authenticated-orcid":false,"given":"Petteri","family":"Hovi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8908-8605","authenticated-orcid":false,"given":"Susanna","family":"Sainio","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2566-2521","authenticated-orcid":false,"given":"Piia","family":"Vuorela","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9026-412X","authenticated-orcid":false,"given":"Sture","family":"Andersson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9286-3636","authenticated-orcid":false,"given":"Kari","family":"Teramo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,6,21]]},"reference":[{"issue":"9","key":"1756_CR1","doi-asserted-by":"publisher","first-page":"793","DOI":"10.1016\/S2213-8587(20)30161-3","volume":"8","author":"P Saravanan","year":"2020","unstructured":"Saravanan P (2020) Diabetes in pregnancy working group; maternal medicine clinical study group; Royal College of Obstetricians and Gynaecologists, UK. 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