413
Views
11
CrossRef citations to date
0
Altmetric
Research Article

Clinical associations with uterine tachysystole

, , , &
Pages 709-713 | Received 07 May 2013, Accepted 16 Aug 2013, Published online: 02 Oct 2013
 

Abstract

Objectives: To determine the incidence of uterine tachysystole (UT) and its association with neonatal depression or metabolic acidemia (DEP).

Methods: This retrospective study comprised all 6234 women at ≥37 weeks’ gestation who were monitored during the last 4 hours of tracings before birth in an academic community hospital. DEP was defined by an umbilical artery base deficit value ≥10 mmol/L or a 5-minute Apgar ≤6 and included 77 births. UT was defined by >15 contractions in 30 minutes.

Results: The overall incidence of UT was 18.3% (1139/6234). In 4.2% (260/6234) UT persisted for >60 min. The rate of UT was similar in births with DEP (14.3%, 11/77) compared to those without DEP (18.3%, 1128/6157; p = 0.45). In births with UT, only 1.0% (11/1139) developed DEP. The DEP group had more decelerations at almost every level of contractions and a higher cesarean rate of 49.4% (38/77) compared to 24.0% (1468/6124); p = <0.001 in the group without DEP.

Conclusions: UT was common, occasionally prolonged and almost always benign. Fetuses with DEP had no more UT than those without DEP. Many babies with DEP declared their vulnerability with decelerations at contraction rates below UT levels and the great majority of them never experienced UT.

Acknowledgements

We wish to thank Omer Ben-Yoseph of PeriGen (Princeton, NJ), who gave his time and expertise for data extraction.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.