The Cervical Length and Thickness of Cesarean Section Scar With Preterm Labor

Preterm Labor Clinical Trial

Official title:

The Assessment of Cervical Length and Thickness of Cesarean Section Scar as Predictors for Preterm Labor in Patients With Previous Cesarean Section

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04554745
• Other study ID #: Preterm labor and previous cs
• Status: Completed
• Phase: N/A
• Start date: February 1, 2021
• Est. completion date: August 1, 2022

Study information

• Verified date: December 2022
• Source: Assiut University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Although the Cesarean section is one of the most common obstetric operations around the world, the World Health Organization recognizes that where cesarean rates are higher than 10%, there is no increase in beneficial maternal and newborn outcomes. some researchers noted that in countries where cesarean rates are above 15%, populations experience higher maternal, infant, and neonatal mortality rates. infants born by cesarean delivery are more likely to require neonatal intensive care unit and have greater respiratory complications, and higher odds for childhood asthma, and obesity.

Preterm is defined as babies born alive before completing 37 weeks of pregnancy.

Preventing Preterm birth is a global priority due to increased risk for neonatal morbidity and mortality.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 260
• Est. completion date: August 1, 2022
• Est. primary completion date: February 1, 2022
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 20 Years to 35 Years

Eligibility

Inclusion Criteria:

1. singleton pregnant

2. gestational age at 18 weeks

3. previous vaginal or Cesarean section

Exclusion Criteria:

1. twins pregnancy in their second birth

2. previous preterm labor

3. diabetic during the second pregnancy

4. hypertensive during the second pregnancy

5. cigarette use during the second pregnancy

6. congenital anomalies

Related Conditions & MeSH terms

• Obstetric Labor, Premature
• Premature Birth
• Preterm Labor

Intervention

Radiation:
• Ultrasound
ultrasound assessment of pregnant women

Locations

Country	Name	City	State
Egypt	Amr	Assiut

Sponsors (1)

Lead Sponsor	Collaborator
Assiut University

Country where clinical trial is conducted

Egypt, 

References & Publications (8)

Hu HT, Xu JJ, Lin J, Li C, Wu YT, Sheng JZ, Liu XM, Huang HF. Association between first caesarean delivery and adverse outcomes in subsequent pregnancy: a retrospective cohort study. BMC Pregnancy Childbirth. 2018 Jun 28;18(1):273. doi: 10.1186/s12884-018-1895-x. — View Citation

Urquia ML. Is the association between previous caesarean section and preterm delivery causal? BJOG. 2020 Apr;127(5):618. doi: 10.1111/1471-0528.16099. Epub 2020 Feb 10. No abstract available. — View Citation

Visser L, Slaager C, Kazemier BM, Rietveld AL, Oudijk MA, de Groot C, Mol BW, de Boer MA. Risk of preterm birth after prior term cesarean. BJOG. 2020 Apr;127(5):610-617. doi: 10.1111/1471-0528.16083. Epub 2020 Feb 24. — View Citation

Wang M, Kirby A, Gibbs E, Gidaszewski B, Khajehei M, Chua SC. Risk of preterm birth in the subsequent pregnancy following caesarean section at full cervical dilatation compared with mid-cavity instrumental delivery. Aust N Z J Obstet Gynaecol. 2020 Jun;60(3):382-388. doi: 10.1111/ajo.13058. Epub 2019 Sep 12. — View Citation

Williams CM, Asaolu I, Chavan NR, Williamson LH, Lewis AM, Beaven L, Ashford KB. Previous cesarean delivery associated with subsequent preterm birth in the United States. Eur J Obstet Gynecol Reprod Biol. 2018 Oct;229:88-93. doi: 10.1016/j.ejogrb.2018.08.013. Epub 2018 Aug 11. — View Citation

Yasseen Iii AS, Bassil K, Sprague A, Urquia M, Maguire JL. Late preterm birth and previous cesarean section: a population-based cohort study. J Matern Fetal Neonatal Med. 2019 Jul;32(14):2400-2407. doi: 10.1080/14767058.2018.1438397. Epub 2018 Feb 21. — View Citation

Zhang N, Chen H, Xu Z, Wang B, Sun H, Hu Y. Pregnancy, Delivery, and Neonatal Outcomes of In Vitro Fertilization-Embryo Transfer in Patient with Previous Cesarean Scar. Med Sci Monit. 2016 Sep 16;22:3288-95. doi: 10.12659/msm.900581. — View Citation

Zhang Y, Zhou J, Ma Y, Liu L, Xia Q, Fan D, Ai W. Mode of delivery and preterm birth in subsequent births: A systematic review and meta-analysis. PLoS One. 2019 Mar 14;14(3):e0213784. doi: 10.1371/journal.pone.0213784. eCollection 2019. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Number of preterm labor in both groups		6 months
Secondary	number of babies will enter the neonatal intensive care unit		6 months
Secondary	Gestational age at time of delivery		6 months