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Characteristics of uterine activity in gestations less than 20 weeks.

Publication ,  Journal Article
Morrison, JC; Martin, RW; Johnson, C; Hess, LW
Published in: Obstetrics and gynecology
July 1990

Ambulatory tocodynamometry has been used for some time to record uterine activity during pregnancy. Most studies, however, have been performed in the third trimester (more than 24 weeks). The current study was initiated to assess uterine activity at earlier gestational ages. One hundred thirty-seven patients were studied between 14-19 weeks' gestation (inclusive). Seven patients who were being monitored were noted to have preterm labor, and six of these seven were found to have increased uterine activity before the diagnosis of preterm labor. There was no difficulty encountered in the vast majority of cases in recording objective, accurate uterine activity information even at these early gestational ages. There was an increase in the uterine activity (during the 18th and 19th weeks) in patients destined to develop preterm labor later in gestation as compared with the contraction pattern of those who labored at term. This study demonstrates that accurate uterine activity information can be gained at these early gestational ages and that when increased contraction frequency is present, it is related to preterm labor.

Duke Scholars

Published In

Obstetrics and gynecology

EISSN

1873-233X

ISSN

0029-7844

Publication Date

July 1990

Volume

76

Issue

1 Suppl

Start / End Page

60S / 62S

Related Subject Headings

  • Uterine Contraction
  • Risk Factors
  • Pregnancy Trimester, Second
  • Pregnancy Trimester, First
  • Pregnancy
  • Obstetrics & Reproductive Medicine
  • Obstetric Labor, Premature
  • Humans
  • Female
  • Cardiotocography
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Morrison, J. C., Martin, R. W., Johnson, C., & Hess, L. W. (1990). Characteristics of uterine activity in gestations less than 20 weeks. Obstetrics and Gynecology, 76(1 Suppl), 60S-62S.
Morrison, J. C., R. W. Martin, C. Johnson, and L. W. Hess. “Characteristics of uterine activity in gestations less than 20 weeks.Obstetrics and Gynecology 76, no. 1 Suppl (July 1990): 60S-62S.
Morrison JC, Martin RW, Johnson C, Hess LW. Characteristics of uterine activity in gestations less than 20 weeks. Obstetrics and gynecology. 1990 Jul;76(1 Suppl):60S-62S.
Morrison, J. C., et al. “Characteristics of uterine activity in gestations less than 20 weeks.Obstetrics and Gynecology, vol. 76, no. 1 Suppl, July 1990, pp. 60S-62S.
Morrison JC, Martin RW, Johnson C, Hess LW. Characteristics of uterine activity in gestations less than 20 weeks. Obstetrics and gynecology. 1990 Jul;76(1 Suppl):60S-62S.

Published In

Obstetrics and gynecology

EISSN

1873-233X

ISSN

0029-7844

Publication Date

July 1990

Volume

76

Issue

1 Suppl

Start / End Page

60S / 62S

Related Subject Headings

  • Uterine Contraction
  • Risk Factors
  • Pregnancy Trimester, Second
  • Pregnancy Trimester, First
  • Pregnancy
  • Obstetrics & Reproductive Medicine
  • Obstetric Labor, Premature
  • Humans
  • Female
  • Cardiotocography