Perinatal risk factors for the occurrence of singleton apparently stillborn infants

YANG Min; WANG Ji-Mei

doi:10.7499/j.issn.1008-8830.2207108

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Chinese Journal of Contemporary Pediatrics ›› 2023, Vol. 25 ›› Issue (1) : 18-24. DOI: 10.7499/j.issn.1008-8830.2207108

CLINICAL RESEARCH

Perinatal risk factors for the occurrence of singleton apparently stillborn infants

YANG Min, WANG Ji-Mei

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Abstract

Objective To identify the perinatal risk factors for the occurrence of singleton apparently stillborn infants. Methods This was a case-control study. A total of 154 singleton neonates with gestational age ≥28 weeks and Apgar score of 0-1 who were subsequently successfully resuscitated in the Obstetrics and Gynecology Hospital of Fudan University from January 2006 to December 2015 were enrolled as the case group (apparently stillborn group). A total of 616 singleton infants born from January 2006 to December 2015 (1-minute Apgar score >1) were randomly selected in a 1:4 ratio as the control group. Univariate analysis and multivariate logistic regression were used to analyze the perinatal risk factors for the occurrence of apparently stillborn infants. Results The gestational age and birth weight in the apparently stillborn group were significantly lower than those in the control group (P<0.05). The incidences of fetal hydrops, cord prolapse, grade III meconium-stained amniotic fluid, placental abruption, breech presentation, severe pre-eclampsia, maternal general anesthesia at delivery, abnormal antenatal fetal heart monitoring and decreased fetal movement were significantly higher in the apparently stillborn group than those in the control group (P<0.05). The multivariate logistic analysis showed that the mother had general anesthesia at delivery (OR=34.520), decreased antenatal fetal movement (OR=28.168),placental abruption (OR=15.641), grade III meconium-stained amniotic fluid (OR=6.365), abnormal antenatal fetal heart monitoring (OR=5.739), and breech presentation (OR=2.614) were risk factors for the occurrence of apparently stillborn infants (P<0.05), while higher gestational age was a protective factor (OR=0.686, P<0.05). Conclusions Attention needs to be paid to mothers with abnormal prenatal fetal heart monitoring, decreased fetal movement, preterm labor, placental abruption, breech presentation, grade III meconium-stained amniotic fluid, and general anesthesia. Preparations for resuscitation should be done to rescue apparently stillborn infants.

Key words

Apparently stillborn infant / Risk factor / Neonate

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YANG Min, WANG Ji-Mei. Perinatal risk factors for the occurrence of singleton apparently stillborn infants[J]. Chinese Journal of Contemporary Pediatrics. 2023, 25(1): 18-24 https://doi.org/10.7499/j.issn.1008-8830.2207108

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