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Clinical Trial Summary

In primigravida, Delayed engagement of fetal head has been theorized that it is more likely in women with a possible cephalo-pelvic disproportion, so far they are associated with higher risk of cervical dystocia, which led to increased rate of caesarean section.


Clinical Trial Description

This study will involve total 226 of " 113 primigravida patients with engaged head and 113 primigravida patients with unengaged head . while assessment of fetal head station, status of membrane should be evaluated and noted. Engagement will be assessed by vaginal examination as described by Müller in 1868 , assumes that when the leading edge of the vertex is felt at the level of the ischial spines, the biparietal diameter will have just passed through the pelvic brim. The leading edge of the vertex at the level of the ischial spines is designated as being at station 0. If the leading edge is 1 cm below the level of the spines, this is referred to as station +1. Usually, a head on the pelvic floor is at station +4 or +5. Uengaged head is still 2 cm above the level of the spines is at station -2, and so on. The aim of this study will be to determine if primigravida patients with unengaged head after spontaneous onset of labor are at increased risk of cesarean section. The patients will be admitted in the labour room. Name, age and detailed history will be noted A thorough general examination and systemic examination will be done to determine the fundal height, the baby's lie, presentation, position, engagement of the presenting part, and frequency and duration of contractions, auscultation of the fetal heart rate for a minimum of 1 minute immediately after a contraction. A vaginal examination will be offered for more assessment of pelvic status, cervical dilation (in cm) and effacement, position of fetal head and status of membrane will be evaluated and noted. Assessment of labor progress will be done by digital examination : to document cervical dilation, effacement, and fetal station are usually routinely performed: - At four hour intervals in the first stage - Prior to administering analgesia/anesthesia* - When the parturient feels the urge to push (to determine whether the cervix is fully dilated) - At one hour intervals in the second stage - If fetal heart rate abnormalities occur " to evaluate for complications such as cord prolapse " - All patients should be counselled and offered Epidural anesthesia during first and second stage of labor. Observations during the established frst stage: 1. Half-hourly documentation of frequency of contractions 2. Hourly pulse 3. 4-hourly temperature and blood pressure 4. A vaginal examination 4-hourly or if there is concern about progress If delay is established in first stage of labour of cervical dilatation of less than 2 cm in 4 hours for frst labour , amniotomy should be considered for all women with intact membranes increase the strength and pain of contractions, in normally progressing labour, do not perform amniotomy routinely. vaginal examination 2 hours later, and diagnose delay if progress is less than 1 cm. increase the strength and pain of contractions, vaginal examination 2 hours later, and diagnose delay if progress is less than 1 cm. Decision about management options of oxytocin augmentation according NICE guidelines should considered. According to RCOG guidelines, we will use a low-dose protocol for all patients, by adding 10 IU oxytocin to 1 litre of 0.9% normal saline. Electronic fetal monitoring will be performed for a minimum of 20 minutes before starting oxytocin, and will be continued until the baby is delivered, intervention will be according to interpretation of CTG. According to NICE guidelines, vaginal examination 4 hours after starting oxytocin in established labour: - If cervical dilatation has increased by less than 2 cm after 4 hours of oxytocin, further obstetric review is required to assess the need for caesarean section. - If cervical dilatation has increased by 2 cm or more, advise 4-hourly vaginal examinations. Observations during the second stage: 1. Half-hourly documentation of the frequency of contractions. 2. Hourly blood pressure. 3. Continued 4-hourly temperature. 4. Frequency of passing urine . 5. A vaginal examination hourly in the active second stage. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05084326
Study type Observational
Source Ain Shams University
Contact
Status Completed
Phase
Start date November 3, 2020
Completion date November 20, 2021

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