Reference Ranges of Fetal Mandible Measurement: Inferior Facial Angle, Jaw Index, Mandible Width/Maxilla Width Ratio and Mandible Length in Thai Fetuses at 15 to 23 Weeks of Gestatio

Completed

• Conditions: Reference range of Fetal mandible in singleton, low-risk pregnant women at 15 to 23 weeks of gestation; Reference Range; Fetal Second Trimester; Inferior Facial Angle; Jaw Index; Mandible Width/Maxilla Width Ratio; Mandible Length

• Registration Number: TCTR20210602003
• Lead Sponsor: Research Support, Faculty of Medicine, Prince of Songkla University

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Completion: 2020-10-31
• Study Start: 2021-06-02
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Female
• Target Recruitment: 316

Inclusion Criteria

Singleton pregnant women at 15(0/7) to 23(6/7) weeks of gestation

Exclusion Criteria

- multifetal gestation
- congenital anomaly
- chromosomal abnormality
- fetal growth restriction
- abnormal amniotic fluid volume
- suspected fetal abnormality of mandible, maxilla or jaws based on the proposed criteria from previous studies (IFA < 49.2 degree, jaw index < 23, MD/MX ratio < 0.785 or ML < -2SD)

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
inferior facial angle at the time of measurement (GA 15-23 weeks) degree,jaw index at the time of measurement (GA 15-23 weeks) -,mandible/maxilla ratio at the time of measurement (GA 15-23 weeks) -,mandible length at the time of measurement (GA 15-23 weeks) millimeters

Secondary Outcome Measures

Name	Time	Method
none none none