postpartum hemorrhage
Conditions
Interventions
Between 14 and 24 weeks:None
Between 24 and 34 weeks:None
postpartum:None
Sponsors
The Second Affiliated Hospital of Harbin Medical University
Eligibility
Sex/Gender
Female
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: Patients hospitalized in the obstetrics department for threatened abortion, threatened preterm labor, or full-term labor between August 2023 and July 2024 were selected to undergo uterine electrohysterogram (EHG) after obtaining informed consent.
Exclusion criteria
Exclusion criteria: Exclusion Criteria during Pregnancy: Patients meeting any of the following conditions were excluded from this study: 1. Patients with threatened abortion or threatened preterm labor not caused by uterine contractions (e.g., due to infection, cervical insufficiency, or uterine anomalies). 2. History of adenomyosis. 3. History of uterine fibroids (leiomyoma) with a largest diameter exceeding 3 cm or number exceeding 4. 4. Patients with poor uterine conditions, such as a history of cervical conization. Exclusion Criteria for Postpartum Patients: 1. Patients who underwent postpartum hemorrhage interventions such as uterine packing, uterine artery ligation, or uterine compression sutures. 2. Patients with postpartum hemorrhage due to coagulation disorders, placental factors, or lacerations of the birth canal.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Parameters related to uterine electromyography ; | — |
Countries
China
Contacts
Public ContactLv Nan
The Second Affiliated Hospital of Harbin Medical University
Outcome results
None listed