Maternal Risk Factors Associated with Antepartum Stillbirth

Background: Stillbirth is a worldwide devastating adverse pregnancy outcome and specific maternal conditions have been associated with an increased risk of fetal death. However, despite the worldwide increased efforts in prevention of stillbirth, little improvements have been achieved in recent year...

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Main Authors: Sara Raimondi, Valentina Massa, Claudia Ravaldi, Alfredo Vannacci, Gaetano Bulfamante, Anna Maria Marconi, Laura Avagliano
Format: Article
Language:English
Published: IMR Press 2022-12-01
Series:Clinical and Experimental Obstetrics & Gynecology
Subjects:
Online Access:https://www.imrpress.com/journal/CEOG/49/12/10.31083/j.ceog4912276
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author Sara Raimondi
Valentina Massa
Claudia Ravaldi
Alfredo Vannacci
Gaetano Bulfamante
Anna Maria Marconi
Laura Avagliano
author_facet Sara Raimondi
Valentina Massa
Claudia Ravaldi
Alfredo Vannacci
Gaetano Bulfamante
Anna Maria Marconi
Laura Avagliano
author_sort Sara Raimondi
collection DOAJ
description Background: Stillbirth is a worldwide devastating adverse pregnancy outcome and specific maternal conditions have been associated with an increased risk of fetal death. However, despite the worldwide increased efforts in prevention of stillbirth, little improvements have been achieved in recent years. Our aim was to explore the role of maternal conditions that can be ascertained at the beginning of pregnancy (i.e., demographic and medical conditions/diseases) and estimate their contribution to antepartum stillbirth. An early identification of risk factors could offer to high-risk pregnancies a tailored antenatal surveillance by trained staff leading to a potential reduction of stillbirth rates. Methods: Retrospective case-control study in singleton pregnancies. The difference between fetal survival rates in women with or without risk factors was evaluated. Results: Antepartum stillbirth occurs more frequently in infertile, older women, with systemic diseases. Maternal conditions may affect fetal outcome in a time-dependent manner. Subdividing cases in early stillbirths (before 28 weeks of gestation) and late stillbirth (≥28 weeks of gestation) we observed that early stillbirths are associated with assisted reproductive technologies (Odds Ratio (OR) 3.10; 95% Confidence Interval (CI) 1.43–6.71), maternal age above 35 years (OR 1.59; 95% CI 1.17–2.17) and pre-gestational hypertension (OR 3.68; 95% CI 1.28–10.56). Autoimmune disease (OR 6.55; 95% CI 2.90–14.80), inherited thrombophilia (OR 2.94; 95% CI 1.40–6.18) and pre-gestational diabetes (OR 7.57; 95% CI 2.17–26.35) are independent risk factors for late stillbirths. Further, the risk of stillbirth rises with the increasing of the number of pathological maternal clinical conditions, reaching an OR of 5.27 (95% CI 2.32–11.98) in cases of mother with three or more conditions/diseases. Conclusions: Early awareness of the maternal conditions/diseases addressable at the beginning of pregnancy is crucial to offer a personalized plan for high quality care during gestation; for the prevention of stillbirth, a cared clinical management should acknowledge that pregnancies can be affected more severely and earlier as the number of abnormal maternal conditions increases.
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spelling doaj.art-1ab8daafb6754de3b09e0bd864fc5a9a2022-12-28T06:16:15ZengIMR PressClinical and Experimental Obstetrics & Gynecology0390-66632022-12-01491227610.31083/j.ceog4912276S0390-6663(22)01898-XMaternal Risk Factors Associated with Antepartum StillbirthSara Raimondi0Valentina Massa1Claudia Ravaldi2Alfredo Vannacci3Gaetano Bulfamante4Anna Maria Marconi5Laura Avagliano6Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, ItalyDepartment of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20100 Milan, ItalyPeaRL – Perinatal Research Laboratory, Department of Neurosciences, University of Florence, 50121 Florence, ItalyPeaRL – Perinatal Research Laboratory, Department of Neurosciences, University of Florence, 50121 Florence, ItalyDepartment of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20100 Milan, ItalyDepartment of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20100 Milan, ItalyEgeria Medical Center, 20122 Milan, ItalyBackground: Stillbirth is a worldwide devastating adverse pregnancy outcome and specific maternal conditions have been associated with an increased risk of fetal death. However, despite the worldwide increased efforts in prevention of stillbirth, little improvements have been achieved in recent years. Our aim was to explore the role of maternal conditions that can be ascertained at the beginning of pregnancy (i.e., demographic and medical conditions/diseases) and estimate their contribution to antepartum stillbirth. An early identification of risk factors could offer to high-risk pregnancies a tailored antenatal surveillance by trained staff leading to a potential reduction of stillbirth rates. Methods: Retrospective case-control study in singleton pregnancies. The difference between fetal survival rates in women with or without risk factors was evaluated. Results: Antepartum stillbirth occurs more frequently in infertile, older women, with systemic diseases. Maternal conditions may affect fetal outcome in a time-dependent manner. Subdividing cases in early stillbirths (before 28 weeks of gestation) and late stillbirth (≥28 weeks of gestation) we observed that early stillbirths are associated with assisted reproductive technologies (Odds Ratio (OR) 3.10; 95% Confidence Interval (CI) 1.43–6.71), maternal age above 35 years (OR 1.59; 95% CI 1.17–2.17) and pre-gestational hypertension (OR 3.68; 95% CI 1.28–10.56). Autoimmune disease (OR 6.55; 95% CI 2.90–14.80), inherited thrombophilia (OR 2.94; 95% CI 1.40–6.18) and pre-gestational diabetes (OR 7.57; 95% CI 2.17–26.35) are independent risk factors for late stillbirths. Further, the risk of stillbirth rises with the increasing of the number of pathological maternal clinical conditions, reaching an OR of 5.27 (95% CI 2.32–11.98) in cases of mother with three or more conditions/diseases. Conclusions: Early awareness of the maternal conditions/diseases addressable at the beginning of pregnancy is crucial to offer a personalized plan for high quality care during gestation; for the prevention of stillbirth, a cared clinical management should acknowledge that pregnancies can be affected more severely and earlier as the number of abnormal maternal conditions increases.https://www.imrpress.com/journal/CEOG/49/12/10.31083/j.ceog4912276stillbirthgestational agediabeteshypertensionautoimmunitythrombophiliaobesity
spellingShingle Sara Raimondi
Valentina Massa
Claudia Ravaldi
Alfredo Vannacci
Gaetano Bulfamante
Anna Maria Marconi
Laura Avagliano
Maternal Risk Factors Associated with Antepartum Stillbirth
Clinical and Experimental Obstetrics & Gynecology
stillbirth
gestational age
diabetes
hypertension
autoimmunity
thrombophilia
obesity
title Maternal Risk Factors Associated with Antepartum Stillbirth
title_full Maternal Risk Factors Associated with Antepartum Stillbirth
title_fullStr Maternal Risk Factors Associated with Antepartum Stillbirth
title_full_unstemmed Maternal Risk Factors Associated with Antepartum Stillbirth
title_short Maternal Risk Factors Associated with Antepartum Stillbirth
title_sort maternal risk factors associated with antepartum stillbirth
topic stillbirth
gestational age
diabetes
hypertension
autoimmunity
thrombophilia
obesity
url https://www.imrpress.com/journal/CEOG/49/12/10.31083/j.ceog4912276
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AT gaetanobulfamante maternalriskfactorsassociatedwithantepartumstillbirth
AT annamariamarconi maternalriskfactorsassociatedwithantepartumstillbirth
AT lauraavagliano maternalriskfactorsassociatedwithantepartumstillbirth