Pregnancy-associated hemorrhagic stroke: A nationwide survey in Japan.
2021
Aim The number of maternal deaths due to pregnancy-associated hemorrhagic stroke has not decreased despite a gradual decrease of maternal death in Japan. This study aimed to clarify the risk factors of hypertensive disorders of pregnancy-associated hemorrhagic stroke. Methods This retrospective study analyzed pregnancy-associated hemorrhagic stroke patients with hypertensive disorders of pregnancy between 2013 and 2017 among 407 Japanese maternal and perinatal centers. Patients were divided into good or poor outcome groups and their maternal backgrounds and neonatal prognoses were compared. Results We analyzed 61 cases, including 41 survival and 20 death cases, obtained from a secondary survey. Among the 61 hemorrhagic stroke cases, 62% were related to hypertensive disorders. Hypertensive disorders of pregnancy were observed in 75% of death cases. Use of MgSO4 or antihypertensive medication did not differ between the poor and good outcomes groups. In cases with antepartum onset of hypertensive disorders of pregnancy, outcomes were poor in 12 and good in 6 cases. Nine patients with poor outcomes and one with a good outcome had hypertension at the outpatient department without systemic evaluation (p = 0.043). Six poor outcomes patients and one good outcome spent more than 1 day from diagnosis at an outpatient clinic. Neurosurgery was performed in 11 poor outcome patients. Conclusion Pregnant women who present with a hypertensive disorder at an outpatient clinic probably need to undergo blood tests and careful observation. Delayed systemic evaluation and intensive care for only a few days may result in the development of hemorrhage.
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