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J Matern Fetal Neonatal Med. 2008 Feb;21(2):115-21. doi: 10.1080/14767050701866971.

Obstetrician-gynecologists' practices regarding preterm birth at the limit of viability.

Author information

1
American College of Obstetricians and Gynecologists, Washington, DC 20024, USA. mmorgan@acog.org

Abstract

OBJECTIVES:

To assess obstetrician-gynecologists' judgments of gestational age of viability and earliest age of medical intervention for preterm delivery, and to associate these practice decisions with physician characteristics.

METHODS:

Questionnaires were mailed to 1193 members of the American College of Obstetricians and Gynecologists (ACOG).

RESULTS:

The response rate was 59%. The majority of respondents considered 24 weeks the earliest age a fetus is potentially viable (57%) and at which they would routinely perform cesarean section for fetal distress (58%). Those respondents who judged viability as 23 weeks or less were more likely to have been in practice for a shorter period (p < 0.05), be a maternal-fetal medicine specialist (p < 0.005), and be from southern or central states (p < 0.005). Similarly, those respondents who would not intervene for fetal distress until 26 weeks gestation were more likely to have been in practice for longer (p < 0.01), to have performed fewer deliveries (p < 0.05), to be in solo practice (p < 0.01), and not to be a maternal-fetal medicine specialist (p < 0.01); males and females did not differ when controlling for age (p = 0.552).

CONCLUSION:

Obstetrician-gynecologists' judgment of viability threshold is consistent with standard estimates of 24 weeks. Viability judgment and reported earliest age for routine intervention both differ by physician characteristics.

PMID:
18240080
DOI:
10.1080/14767050701866971
[Indexed for MEDLINE]

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