Comparing the Shape and Frequency of Uterine Contractions

Principle Investigator

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01649063

Enrollment

Registered

2012-07-25

Start date

2010-04-30

Completion date

2011-07-31

Last updated

2012-07-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Delivery, Uterine Contractions

Keywords

Uterine contraction;, Shape; Frequency;, First stage labor;, Fall, Rise ratio.

Brief summary

Dystocia is the most common indication for primary cesarean section. The most common cause of dystocia is uterine dysfunction. In all cephalopelvic disproportion studies, more attention is usually paid on fetus and pelvic rather than on the role of uterine contraction in delivery. So we decided to determine the relationship between dystocia and uterine contraction patterns.

Interventions

None listed

Study design

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

18 Years to 35 Years

Healthy volunteers

Yes

Inclusion criteria

* age 18-35 years * singleton pregnancy with cephalic term presentation * tendency to do vaginal delivery * having no medical or mental diseases * having no pregnancy complications * Intact membranes * BMI\<26

Exclusion criteria

* using oxytocin before and during the monitoring of contractions * performing cesarean section for any reason except arrested delivery or pelvic constriction * the birth weight\< 2500 or \>4000 * using the analgesia such as epidural anesthesia morphine and pethidine during the study

Design outcomes

Primary

Measure	Time frame	Description
the shape and frequency of uterine contractions	up to 15 months	Uterus contractions were recorded using electronic fetal monitoring at the beginning of the active phase of labor (dilatation 3-5 cm) for 30 min.

Outcome results