Format

Send to

Choose Destination
See comment in PubMed Commons below
Obstet Gynecol. 1997 Oct;90(4 Pt 1):514-8.

Lack of value of routine postpartum hematocrit determination after vaginal delivery.

Author information

1
Department of Obstetrics, Gynecology, University of California, San Francisco, USA.

Abstract

OBJECTIVE:

To identify risk factors associated with low postpartum hematocrits after vaginal delivery and to define lower risk categories of patients for whom routine determination of hematocrit may not be necessary.

METHODS:

This case-control study was designed to identify risk factors for discharge hematocrit below 27% in nonanemic patients after a vaginal delivery using the University of California, San Francisco, Perinatal Database. Multivariate statistics were used to determine the most significant risk factors. Lower risk subpopulations were analyzed to determine their rate of low discharge hematocrits.

RESULTS:

Risk factors associated with odds ratios greater than 1.5 for discharge hematocrit less than 27% included estimated blood loss greater than 500 mL, placenta previa, abruption, prolonged third stage, preeclampsia, prior postpartum hemorrhage, and prior cesarean delivery. Estimated blood loss > 500 mL was the most significant risk factor for discharge hematocrit less than 27% (odds ratio 4.5, 95% confidence interval 3.8, 5.4). A population without statistically significant risk factors was identified; this group had a 1.4% risk of discharge hematocrit less than 27%.

CONCLUSION:

Routine postpartum hematocrits are unnecessary in clinically stable patients with an estimated blood loss of less than 500 mL.

PMID:
9380307
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center