The Accuracy of Blood Loss Estimation After Simulated Vaginal Delivery

Visual blood loss estimation often underestimates blood loss. In this study we sought to determine the effect of calibrated drape markings on blood loss estimation in a simulated vaginal delivery. Subjects were randomized to estimate simulated blood loss (300, 500, 1000, and 2000 mL) in calibrated o...

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Bibliographic Details
Published inAnesthesia and analgesia Vol. 105; no. 6; pp. 1736 - 1740
Main Authors Toledo, Paloma, McCarthy, Robert J., Hewlett, Bradley J., Fitzgerald, Paul C., Wong, Cynthia A.
Format Journal Article
LanguageEnglish
Published Hagerstown, MD International Anesthesia Research Society 01.12.2007
Lippincott
Subjects
Biological and medical sciences
Blood Loss, Surgical
Delivery, Obstetric - instrumentation
Delivery, Obstetric - methods
Delivery. Postpartum. Lactation
Female
Gynecology. Andrology. Obstetrics
Humans
Male
Medical sciences
Postpartum Hemorrhage - diagnosis
Surgical Equipment
Human
Anesthesia
Delivery
Simulation
Estimation
Blood loss
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Summary:Visual blood loss estimation often underestimates blood loss. In this study we sought to determine the effect of calibrated drape markings on blood loss estimation in a simulated vaginal delivery. Subjects were randomized to estimate simulated blood loss (300, 500, 1000, and 2000 mL) in calibrated or noncalibrated vaginal delivery drapes and then crossover. Visual blood loss estimation with noncalibrated drapes underestimated blood loss, with worsening accuracy at larger volumes (16% error at 300 mL to 41% at 2000 mL). The calibrated drape error was <15% at all volumes. Calibrated vaginal delivery drapes improve blood loss estimation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0003-2999
1526-7598
1526-7598
DOI:10.1213/01.ane.0000286233.48111.d8