fetal lung development
Conditions
Interventions
Case series:None
Sponsors
Chongqing Health Center for Women and Children
Eligibility
Sex/Gender
Female
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. Chinese nationality, with the intention to undergo serial prenatal examinations and inpatient delivery at this hospital 2. BMI between 18.5~23.9 kg/m^2 3. Singleton pregnancy 4. Spontaneous conception 5. Clear last menstrual period (LMP) and regular menstrual cycle 6. No complications or comorbidities 7. No smoking history in the 3 months before pregnancy or during pregnancy 8. No alcohol abuse during pregnancy 9. No history of preterm birth(4500 g) 10.No history of fetal or neonatal death, and no history of fetal malformation 11.No history of preeclampsia, eclampsia, HELLP syndrome, or other pregnancy-related diseases 12.No clinically significant atypical red blood cell alloantibodies 13.Negative routine urine test 14.SBP < 140 mmHg and DBP < 90 mmHg 15.HGB=110 g/L 16.No sexually transmitted diseases 17.No history of exposure to chemical or toxic substances
Exclusion criteria
Exclusion criteria: NA
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| Biparietal diameter and Head circumference and Abdominal circumference and Femur length and CRL and NT; | — |
Primary
| Measure | Time frame |
|---|---|
| Fetal lung area;Internal diameter of the left pulmonary artery and the right pulmonary artery and the main pulmonary artery; | — |
Countries
China
Contacts
Public ContactChen Gongli
Chongqing Health Center for Women and Children, Women and Children’s Hospital of Chongqing Medical University
Outcome results
None listed