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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT04862182
Other study ID # Intrapartum Ultrasound
Secondary ID
Status Not yet recruiting
Phase
First received
Last updated
Start date May 1, 2021
Est. completion date June 2022

Study information

Verified date April 2021
Source Cairo University
Contact Gamal Omar hussein, Specialist
Phone 01112677418
Email gamalomar448@gmail.com
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Determine the value of intrapartum scan measurement(s) in predicting the mode of delivery.


Description:

The assessment and management of progress of labour is based on subjective clinical findings. The diagnosis of delay in labour and decisions regarding the timing and / or type of intervention(s) rely on clinical abdominal examination and digital vaginal assessment of the degree of cervical dilatation, the position of the presenting part of the baby and its station in relation to the maternal pelvis . Several studies have demonstrated the inaccuracy and the lack of consistency in such assessment between different practitioners especially in certain malpositions, malpresentations or with excessive subcutaneous tissue oedema . One of the important clinical parameters that is assessed in labour is the position of the fetal head. Precise knowledge of fetal occiput position in labour is essential because some malpositions, like a persistent occiput posterior position is associated with higher risk of operative delivery and maternal and perinatal morbidity. The correct determination of head position is crucial before attempting any operative vaginal delivery. Moreover, knowing the exact presentation is also of paramount importance. For example, the differentiation between a face and a brow presentation is important in clinical management particularly that the engaging diameters of the latter presentation are too big in a term baby for a safe vaginal birth to occur, Sonographic assessment of fetal head position is best performed by transabdominal imaging in axial and sagittal planes . Another parameter that is important in evaluating the progress of labour is the fetal head station. The fetal head station is the level of the fetal head in the birth canal relative to the plane of the maternal ischial spines. Serial clinical assessments by digital vaginal examination give an indication of the progress in head decent throughout the labour process, Sonographic assessment of fetal head station is best performed by transperineal ultrasound in the midsagittal or axial plane . Several authors reported that ultrasound examination is more accurate and reproducible than clinical examination in the diagnosis of fetal head position and station and in the prediction of arrest of labor . It has also been suggested that ultrasound examination has the potential to stratify women who have a spontaneous vaginal delivery from those who end up having an operative birth Furthermore, it has been demonstrated that it is feasible to rely on ultrasound to predict the outcome of a planned operative vaginal birth . However, currently, there is no consensus regarding the best timing of intrapartum scanning, at least for some of these measurements. Similar there is no general agreement regarding which measurements should be obtained and how useful if some of these measurements are integrated into a prediction model together with demographic or other clinical parameters.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 80
Est. completion date June 2022
Est. primary completion date May 2022
Accepts healthy volunteers
Gender Female
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria: - Nulliparous women - Full Term pregnancy - Vertex presentation - Singleton pregnancy - In labour Exclusion Criteria: - Multiparous women - Preterm labour - Non vertex presentation - Multi-fetal pregnancy - Planned for elective Cesarean Section - Underlying medical diseases - Those unwilling to participate in the study

Study Design


Related Conditions & MeSH terms

  • Ultrasound Therapy; Complications

Intervention

Diagnostic Test:
Trans-perineal ultrasound
Intrapartum trans-perineal ultrasound in predicting the mode of delivery.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Cairo University

References & Publications (4)

Barak O, Levy R, Flidel O, Zaks S, Gillor M, Hagay Z, Vaisbuch E. The Routine Use of Intrapartum Ultrasound in Clinical Decision-Making during the Second Stage of Labor - Does It Have Any Impact on Delivery Outcomes? Gynecol Obstet Invest. 2018;83(1):9-14 — View Citation

Brunelli E, Del Prete B, Casadio P, Pilu G, Youssef A. The dynamic change of the anteroposterior diameter of the levator hiatus under Valsalva maneuver at term and labor outcome. Neurourol Urodyn. 2020 Nov;39(8):2353-2360. doi: 10.1002/nau.24494. Epub 202 — View Citation

Lipschuetz M, Cohen SM, Lewkowicz AA, Amsalem H, Haj Yahya R, Levitt L, Yagel S. [PROLONGED SECOND STAGE OF LABOR: CAUSES AND OUTCOMES]. Harefuah. 2018 Nov;157(11):685-690. Hebrew. — View Citation

Sherer DM, Abulafia O. Intrapartum assessment of fetal head engagement: comparison between transvaginal digital and transabdominal ultrasound determinations. Ultrasound Obstet Gynecol. 2003 May;21(5):430-6. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary The rate of intrapartum Cesarean Section number of women that failed to progress to normal vaginal delivery and need for intrapartum Cesarean Section (ICS) 3 hours
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