Abstract
Introduction: Allowable blood loss (ABL) estimates the maximum permitted loss of blood to reach a transfusion threshold and is commonly used for surgery where major haemorrhage is expected. [1] Gross JB. Estimating allowable blood loss: corrected for dilution. Anesthesiology 1983;58:277-80. Google Scholar A validated version of this formula is not available for pregnant patients ahead of caesarean section (CS) who have altered physiology and an anticipated autotransfusion of uterine blood. [2] Surbeck D, Vial Y, Girard T. Patient blood management in pregnancy and childbirth: a literature review and expert opinion. Arch Gynecol Obstet 2020;301:627-41. Google Scholar We aimed to build a statistical model that could accurately predict ABL for CS. Methods: Caesarean sections in 2019 undertaken in our hospital were reviewed from a Caldicott Guardian approved database. The variables included were: maternal age (years), booking weight (kg), body mass index (BMI) (kg/m2), preoperative haemoglobin concentration (g/L), lowest postoperative haemoglobin concentration, and estimated blood loss (mL) were included in a linear regression model to predict blood loss.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
