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Predictors for Massive Haemorrhage during Caesarean Delivery Due to Placenta Praevia

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DOI: 10.4236/ijcm.2015.62014    2,509 Downloads   3,058 Views

ABSTRACT

Objectives: To describe the incidence and predictive factors for massive haemorrhage during a caesarean delivery in women with placenta praevia. Methods: We performed a retrospective cohort study among consecutive women with a placenta praevia planned for a caesarean delivery between 2001-2011 in one academic centre and two teaching hospitals in the Netherlands. Massive haemorrhage was defined as ≥1000 mL blood loss during caesarean section. We used logistic regression analysis to assess which maternal and pregnancy characteristics were predictors for massive haemorrhage during caesarean delivery. Results: Of 54,794 deliveries, we identified 215 (0.39%) women with placenta praevia who underwent a Caesarean delivery, of whom 94 (44%) had massive haemorrhage at or after surgery. After univariable preselection, multivariable logistic regression indicated that higher maternal age (OR 2.09; 95% CI 1.17 - 3.74), no Caucasian ethnicity (OR 1.73; 95% CI 0.92 - 3.27), multiple pregnancy (OR 3.92; 95% CI 0.72 - 21.28), lower systolic blood pressure during pregnancy (OR 1.03; 95% CI 1.00 - 1.07) and the placenta located at the anterior wall (OR 2.21; 95% CI 1.20 - 4.04) were independent predictors for massive haemorrhage during a caesarean delivery in women with placenta praevia. Predicted probabilities varied between 22% and 71%. The model has a reasonable discriminative ability and acceptable calibration. Conclusions: Women with placenta praevia are at high risk for massive haemorrhage during caesarean delivery. The risk profile can be used to identify extreme high-risk women in whom extensive preventive measures are justified.

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Burgers, M. , Rengerink, K. , Eschbach, S. , Muller, M. , Pampus, M. , Mol, B. and Graaf, I. (2015) Predictors for Massive Haemorrhage during Caesarean Delivery Due to Placenta Praevia. International Journal of Clinical Medicine, 6, 96-104. doi: 10.4236/ijcm.2015.62014.

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