Miscarriage/Premature birth
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Singleton pregnancy; 2.From 20 weeks to 37 weeks of gestation; 3.Fetal survival; 4.Consent to participate in this study and sign the informed consent form; 5.Meet any of the following conditions: 1)Having contractions or signs of preterm labor; 2)Patients with a history of spontaneous abortion or preterm birth; 3) Patients with a history of cervical surgery ( after cervical conization or cervical cerclage). 4)Cervical shortening in the second trimester of pregnancy(cervical length < 25mm). 5)Other pregnant women at high risk for miscarriage and preterm birth.
Exclusion criteria
Exclusion criteria: 1Multiple pregnancy; 2Genital tract malformation; 3Severely allergic to medical adhesive products; 4The abdominal skin has abrasions or infection; 5Iatrogenic preterm birth; 6Wearing a cardiac pacemaker.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Miscarriage rate;Premature birth rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| The discrimination of the model.;The calibration of the model.;The effectiveness of the model’s clinical application; | — |
Countries
China
Contacts
The Second Affiliated Hospital of Xi'an Jiaotong University