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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
January 1, 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 des-tined 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. © 1990 The American College of Obstetricians and Gynecologists.

Duke Scholars

Published In

Obstetrics and Gynecology

EISSN

1873-233X

ISSN

0029-7844

Publication Date

January 1, 1990

Volume

76

Issue

1

Start / End Page

60S / 62S

Related Subject Headings

  • Obstetrics & Reproductive Medicine
  • 3215 Reproductive medicine
  • 1114 Paediatrics and Reproductive Medicine
 

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), 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 (January 1, 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 Jan 1;76(1):60S-62S.
Morrison, J. C., et al. “Characteristics of uterine activity in gestations less than 20 weeks.” Obstetrics and Gynecology, vol. 76, no. 1, Jan. 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 Jan 1;76(1):60S-62S.

Published In

Obstetrics and Gynecology

EISSN

1873-233X

ISSN

0029-7844

Publication Date

January 1, 1990

Volume

76

Issue

1

Start / End Page

60S / 62S

Related Subject Headings

  • Obstetrics & Reproductive Medicine
  • 3215 Reproductive medicine
  • 1114 Paediatrics and Reproductive Medicine