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Incidence and risk factors for umbilical cord prolapse in labor when amniotomy is used and with spontaneous rupture of membranes: A Swedish nationwide register study
Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences. Region Kalmar County, Sweden.ORCID iD: 0000-0002-8561-4890
Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences. Linnaeus University, Linnaeus Knowledge Environments, Sustainable Health. Region Kalmar County, Sweden.ORCID iD: 0000-0002-0961-5250
Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.ORCID iD: 0000-0002-0895-674x
Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.ORCID iD: 0000-0002-1944-773X
2024 (English)In: Acta Obstetricia et Gynecologica Scandinavica, ISSN 0001-6349, E-ISSN 1600-0412, Vol. 103, no 2, p. 304-312Article in journal (Refereed) Published
Abstract [en]

IntroductionUmbilical cord prolapse (UCP) is a rare but severe obstetric complication in the presence of a rupture of the membranes. Although it is not possible to prevent a spontaneous rupture of the membranes (SROM), it is possible to prevent an amniotomy, which is a commonly used intervention in labor. This study aimed to explore the incidence and risk factors that are associated with UCP in labor when amniotomy is used vs SROM.Material and methodsA retrospective nationwide register study was conducted of all births in Sweden from January 2014 to June 2020 that were included in the Swedish Pregnancy Register (n = 717 336). The main outcome, UCP, was identified in the data by the International Classification of Diseases (ICD-10) diagnosis code O69.0. Multiple binary logistic regression analysis was used to identify the risk factors.ResultsAmniotomy was performed in 230 699 (43.6%) of all pregnancies. A UCP occurred in 293 (0.13%) of these cases. SROM occurred in 298 192 (56.4%) of all cases, of which 352 (0.12%) were complicated by UCP. Risk factors that increased the odds of UCP for both amniotomy and SROM were: higher parity, non-cephalic presentation and an induction of labor. Greater gestational age reduced the odds of UCP. Risk factors associated with only amniotomy were previous cesarean section and the presence of polyhydramnios. Identified risk factors for UCP in labor with SROM were a higher maternal age and maternal origin outside of the EU.ConclusionsUCP is a rare complication in Sweden. Beyond confirming the previously recognized risk factors, this study found induction of labor and previous cesarean section to be risk factors in labor when amniotomy is used. This is the largest study examining the incidence of umbilical cord prolapse (UCP) and its risk factors in labors when an amniotomy is used and those with a spontaneous rupture of membranes. The incidence of UCP was similar for both labors with an amniotomy and those with a spontaneous rupture of membranes. This study confirms previously recognized risk factors for UCP and identifies some differences in risk factors between labors with amniotomy and those with a spontaneous rupture of membranes.image

Place, publisher, year, edition, pages
John Wiley & Sons, 2024. Vol. 103, no 2, p. 304-312
Keywords [en]
amniotomy, induction of labor, labor interventions, risk factors, spontaneous labor, umbilical cord prolapse
National Category
Nursing Obstetrics, Gynecology and Reproductive Medicine
Research subject
Health and Caring Sciences, Nursing
Identifiers
URN: urn:nbn:se:lnu:diva-125930DOI: 10.1111/aogs.14717ISI: 001102591100001PubMedID: 37969005Scopus ID: 2-s2.0-85176917921OAI: oai:DiVA.org:lnu-125930DiVA, id: diva2:1818194
Available from: 2023-12-08 Created: 2023-12-08 Last updated: 2025-02-06Bibliographically approved

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Tallhage, SofiaÅrestedt, KristoferSchildmeijer, KristinaOscarsson, Marie

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Acta Obstetricia et Gynecologica Scandinavica
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