Validation of a quantitative system for real-time measurement of postpartum blood loss

Purpose Reliable real-time estimation of blood loss is crucial for the prompt management of postpartum hemorrhage (PPH), which is one of the major obstetric complications worldwide. Our study aims at the validation of feasibility and precision of measured blood loss (MBL) with a quantitative real-ti...

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Bibliographic Details
Published in:Archives of gynecology and obstetrics 2018-12, Vol.298 (6), p.1071-1077
Main Authors: Kahr, Maike Katja, Brun, Romana, Zimmermann, Roland, Franke, Denise, Haslinger, Christian
Format: Article
Language:English
Subjects:
Childbirth & labor
Endocrinology
Gynecology
Health risk assessment
Hemoglobin
Human Genetics
Maternal-Fetal Medicine
Medicine
Medicine & Public Health
Obstetrics/Perinatology/Midwifery
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Summary:Purpose Reliable real-time estimation of blood loss is crucial for the prompt management of postpartum hemorrhage (PPH), which is one of the major obstetric complications worldwide. Our study aims at the validation of feasibility and precision of measured blood loss (MBL) with a quantitative real-time measurement system during (1) vaginal delivery and (2) cesarean section by comparison with a hemoglobin-based formula for blood loss as an objective control. This is the first study to include a reasonable number of patients in an everyday clinical setting. Methods 921 patients were prospectively enrolled into this study (vaginal delivery: n  = 461, cesarean delivery: n  = 460) at a tertiary care hospital in Switzerland. Blood loss was measured by quantitative fluid collection bags. “Calculated blood loss” (CBL) was determined by modified Brecher`s formula based on the drop of hemoglobin after delivery. MBL based on our measurement system was compared to CBL by correlation analysis and stratified by the mode of delivery. Results During vaginal delivery, MBL as determined by our quantitative measurement system highly correlated with CBL ( p 
ISSN:0932-0067
1432-0711
DOI:10.1007/s00404-018-4896-0