Labor Progress
Conditions
Keywords
BMI, progress of labor, nulliparous women
Brief summary
Study the rate of progress of labor among nulliparous women belonging to different body mass index groups, & observe how does this variation in maternal body mass index may affect the course of labor.
Detailed description
For nulliparous cases presenting to the labor ward, maternal height & weight will be collected at the time of admission to calculate the BMI (body mass index) & further classified according to WHO (World Health Organization) categories. Putting into consideration the physiological increase in BMI related to pregnancy, the overweight participants whose BMI (25-29.9) will be combined with the normal range BMI (18.5-24.9) category. Labor characteristics of these participants will be then compared with those of the underweight (BMI less than 18.5) & obese (BMI 30 or higher) participants.Females are assigned in one of 3 groups based on their BMI; Underweight group (BMI \<18.5kg/m2), Control group whose BMI within normal range (18.5-29.9 kg/m2),& Obese group (BMI more than or equal 30kg/m2). Labor management protocols are fixed. Data on labor progression are collected, including cervical dilatation, cervical effacement, head station & descent. The median duration of labor , estimated by rate of cervical dilatation in cm, will be used as a measurement of labor progression in each group. A cesarean section for abnormal labor pattern will be documented as failure of progress.
Interventions
None listed
Sponsors
Cairo University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
20 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* nulliparous women in active phase of labor, with an age range from 20 to 40 years. Full term pregnancy, singleton, viable fetus, cephalic (vertex) presentation, occipito-anterior position.
Exclusion criteria
* Multiparous women. Preterm labor. Passed date delivery. Multiple gestation. Large fetal weight (more than 4000g). Intrauterine fetal death. Intrauterine fetal growth restriction. Major fetal congenital anomalies. Rupture of membranes before onset of active labor. Fetal malposition or malpresentation. Inadequate pelvis or cephalopelvic disproportion. Maternal medical disorder. Induction of labor by oxytocin or prostaglandins. Conditions requiring urgent delivery eg antepartum haemorrhage, fetal distress, cord prolapse.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| rate of cervical dilatation | every 2 hours during active phase of labor, from admission to the labor ward until second stage of labor. | in centimeters |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| descent of fetal head | every 2 hours during active phase of labor, from admission to the labor ward until second stage of labor | head station |
Other
| Measure | Time frame | Description |
|---|---|---|
| duration of active phase of labor | all through the course of labor, individually assessed for each participant, starting from the time of admission to labor ward until start of second stage of labor | total duration in hours |
| duration of second stage of labor | from start of second stage of labor ( full cervical dilatation) until delivery of fetus | total duration in minutes |
| mode of delivery | labor | vaginal delivery or cesarean section |
Countries
Egypt
Outcome results
None listed