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The goal of this study is to find clues to improve perinatal outcomes in the case of cerebrovascular acute disorders during pregnancy. We analyzed 35 cases of cerebrovascular diseases related to maternal deaths in Japan those that occurred during pregnancy and reported to the Committee of the Ministry of Health, Labor, and Welfare from 2010 to 2018. Cerebrovascular acute disorders occurred at 34.6 ± 6.6 gestational weeks. There were seven intrauterine fetal deaths (IUFD), and eight cases showed neonatal asphyxia with umbilical arterial pH between 6.7 and 7.0 (asphyxia cases,  n  = 15). In two of eight newborns, brain hypothermia therapy was given, and all survived without neurological sequelae. Maternal dyspnea was significantly related to severe prolonged decelerations of the fetus ( p  &lt; .05), and asphyxia cases ( p  &lt; .005). Median time from maternal onset to delivery (OD time) was significantly longer in asphyxia cases than in the non-asphyxia cases (84 vs 29 min,  p  &lt; .05). OD time over 30 min was significantly related to the antepartum occurrence, cervical dilatation &lt;5 cm ( p  &lt; .05), onset outside of the hospital ( p  &lt; .001), and maternal transfer before delivery ( p  &lt; .001). More than 40% of cases experienced fetal asphyxia, and 20% ended in IUFD in maternal deaths related to cerebrovascular acute disorders. Maternal respiratory support and rapid delivery would be the keys to improve perinatal outcomes in case of cerebrovascular acute disorders during pregnancy.

Perinatal outcome in case of maternal death for cerebrovascular acute disorders: a nationwide study in Japan