Quantitative blood loss after vaginal delivery: a retrospective analysis of 104 079 measurements at 41 institutions.

J Ansari¹, M K Farber², R L Thurer³, N Guo¹, A Rubenstein⁴, B Carvalho⁵

¹Department of Anesthesiology, Perioperative and Pain Medicine, Stanford School of Medicine, Palo Alto, CA, USA.

²Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

³Gauss Surgical, Inc., Menlo Park, CA, USA.

⁴Department of Obstetrics and Gynecology, Saint Joseph's Hospital and Medical Center, Creighton University School of Medicine, Phoenix, AZ, USA.

⁵Department of Anesthesiology, Perioperative and Pain Medicine, Stanford School of Medicine, Palo Alto, CA, USA. Electronic address: bcarvalho@stanford.edu.

PubMed DOI

Abstract

BACKGROUND: Peripartum quantitative blood loss (QBL) measurement is recommended over visual estimation. However, QBL measurement after vaginal delivery has been inadequately evaluated. The primary aim of this study was to determine the characteristics of QBL measurements from a large, multicenter cohort of patients having vaginal deliveries. We also determined the incidence of postpartum hemorrhag…

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