Blood Transfusion Predictors in Cesarean Sections for Pregnancies With Placenta Accreta and Placenta Previa: A Monocentric Tertiary Experience

Abstract

Objective The objective of this study was to analyze the possible predictors of the need for intraoperative blood transfusion in cesarean sections for pregnancies with abnormal placentation. Methods This was a retrospective study based on data from patients' electronic medical records. A total of 44 patients who were diagnosed as placenta previa or placenta accreta who delivered through cesarean section at King Fahad University Hospital, Al-Khobar, Saudi Arabia, from June 1997 to January 2021 were included in the study. Seventeen patients received intra-operative blood transfusion. The other 27 patients did not receive any blood transfusions and served as controls. Demographic data, antepartum profiles, and obstetric history were compared between the two groups. Univariate analysis and multivariate logistic regression were used to analyze the correlations between related risk factors and the need for intraoperative blood transfusion. Results Univariate analysis (chi2 test) has shown multiple factors that correlated significantly (p<0.05) with blood transfusion requirement. These factors include the presence of placenta accreta, general anesthesia, preoperative hematocrit < 33%, preoperative hemoglobin