Document Detail


Visually estimated and calculated blood loss in vaginal and cesarean delivery.
MedLine Citation:
PMID:  18639209     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The objective of the study was to compare visually estimated blood loss (vEBL) with calculated estimated blood loss (cEBL) according to mode of delivery and degree of perineal laceration. STUDY DESIGN: Pre- and postdelivery hematocrit (HCT) and other variables including vEBL were prospectively recorded into an obstetrical database between January and September 2005. The cEBL was derived by multiplying the calculated pregnancy blood volume (0.75 x {[maternal height (inches) x 50] + [maternal weight in pounds x 25]}) by percent of blood volume lost ({predelivery HCT - postdelivery HCT}/predelivery HCT). cEBL and vEBL were compared according to mode of delivery and degree of perineal laceration. RESULTS: There were 677 subjects with complete data. vEBL was statistically different from cEBL between each degree of laceration and between all modes of delivery, demonstrating an underestimation of vEBL with increasing cEBL. CONCLUSION: Improved methods for calculating blood loss include the use of a modified version of the formula used for pregnancy blood volume calculation.
Authors:
Irene Stafford; Gary A Dildy; Steven L Clark; Michael A Belfort
Related Documents :
16498059 - Kinetics and secretion of placental growth hormone around parturition.
21123309 - Hysterosalpingogram: an essential examination following essure hysteroscopic sterilisat...
11704209 - Conservative management and vaginal delivery following ruptured renal angiomyolipoma.
17901039 - Vaginal removal of prolapsed pedunculated submucosal myoma during pregnancy.
17197599 - Biomechanical adaptations of the rat vagina and supportive tissues in pregnancy to acco...
9217949 - Intrapartum sonography of the lower uterine segment in patients with breech-presenting ...
9115589 - The characteristics of the melatonin secretory rhythm are not modified by the stage of ...
16218859 - Developmental competence of nuclear transfer cow oocytes after direct injection of feta...
14667869 - Delay of embryo transfer to day 5 results in decreased initial serum beta-human chorion...
Publication Detail:
Type:  Journal Article     Date:  2008-07-17
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  199     ISSN:  1097-6868     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-11-05     Completed Date:  2008-11-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  519.e1-7     Citation Subset:  AIM; IM    
Affiliation:
Department of Obstetrics and Gynecology, Louisiana State University Health Sciences Center, New Orleans, LA 75390-9032, USA. istaff@parknet.pmh.org
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Blood Volume*
Cesarean Section*
Delivery, Obstetric / methods*
Female
Hematocrit
Humans
Lacerations
Perineum / injuries
Postpartum Hemorrhage / diagnosis
Pregnancy
Prospective Studies
Uterine Hemorrhage / diagnosis*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Effect of physician gender and specialty on utilization of hysterectomy in New York, 2001-2005.
Next Document:  Increased neonatal mortality among normal-weight births beyond 41 weeks of gestation in California.