Association of Adverse Perinatal Outcomes with Blood Components Transfusion in Patients with Acute Fatty Liver of Pregnancy.

Purpose: To investigate the rare obstetric emergency with no specific treatments called acute fatty liver of pregnancy. The primary objective was to evaluate association of adverse perinatal outcomes with blood components transfusion. While the secondary objective focused on further establishing the predictive risk factors for adverse perinatal outcomes.

Participants and methods: This retrospective cohort study included patients, who diagnosed with acute fatty liver of pregnancy without hepatic/malignant diseases in Qilu Hospital of Shandong University over 12-year period (collected 2007-2019, aged 20-41years). Chi-square test was used to explore the relevance between blood transfusion therapy and adverse perinatal outcomes. Meanwhile, logistic regression analysis was performed to identify predictive risk factors.

Results: Of 146 patients, 26 (26/146, 17.8%) received prenatal blood transfusions. These patients had reduced gestational ages and exhibited more severe clinical symptoms. The association between blood transfusion and adverse maternal outcomes yielded a P value of 0.044, while the association with fetal outcomes was highly significant (P<0.001). Multivariate logistic regression analysis identified seven high-risk factors for maternal outcomes and six for fetal outcomes, all demonstrating strong discriminatory capacity.

Conclusion: Blood component transfusion may serve as a marker of disease severity. Prompt identification of patients with high-risk factors is crucial to improve maternal and fetal outcomes.