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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| Published in | Anesthesia and analgesia Vol. 105; no. 6; pp. 1736 - 1740 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Hagerstown, MD
International Anesthesia Research Society
01.12.2007
Lippincott |
| Subjects | |
| Online Access | Get full text |
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| Abstract | 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. |
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| AbstractList | 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. 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.BACKGROUNDVisual 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.METHODSSubjects 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.RESULTSVisual 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.CONCLUSIONSCalibrated vaginal delivery drapes improve blood loss estimation. |
| Author | Fitzgerald, Paul C. McCarthy, Robert J. Toledo, Paloma Hewlett, Bradley J. Wong, Cynthia A. |
| AuthorAffiliation | From the Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois |
| AuthorAffiliation_xml | – name: From the Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois |
| Author_xml | – sequence: 1 givenname: Paloma surname: Toledo fullname: Toledo, Paloma organization: From the Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois – sequence: 2 givenname: Robert surname: McCarthy middlename: J. fullname: McCarthy, Robert J. – sequence: 3 givenname: Bradley surname: Hewlett middlename: J. fullname: Hewlett, Bradley J. – sequence: 4 givenname: Paul surname: Fitzgerald middlename: C. fullname: Fitzgerald, Paul C. – sequence: 5 givenname: Cynthia surname: Wong middlename: A. fullname: Wong, Cynthia A. |
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| SubjectTerms | 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 |
| Title | The Accuracy of Blood Loss Estimation After Simulated Vaginal Delivery |
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