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Low-Intensity Focused Ultrasound Regulates the Uterine Microenvironment for Prevention and Treatment of Postpartum Hemorrhage: A Clinical Study and Mechanism Exploration

Low-Intensity Focused Ultrasound Regulates the Uterine Microenvironment for Prevention and Treatment of Postpartum Hemorrhage: A Clinical Study and Mechanism Exploration

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600120143
Enrollment
Unknown
Registered
2026-03-10
Start date
2026-03-10
Completion date
Unknown
Last updated
2026-03-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postpartum Hemorrhage

Interventions

Treatment group:20 minutes of low-intensity focused ultrasound (LIFU) treatment will be Performed immediately after the third stage of labor and 12 hours postpartum, respectively.
Sham treatment group:20 minutes of low-intensity focused ultrasound (LIFU) treatment will be performed immediately after the third stage of labor and 12 hours postpartum, respectively, with no energy
Blank control group:Conventional oxytocin treatment

Sponsors

The First Affiliated Hospital of Chongqing Medical University
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 45 Years

Inclusion criteria

Inclusion criteria: 1. Parturients aged 18–45 years who delivered vaginally and had a gestational age of 28–42 weeks; 2. Those without severe pregnancy-related comorbidities and complications; 3.Those without severe internal or surgical comorbidities; 4. Those who voluntarily agree to receive and cooperate with the completion of LIFU treatment and sign the informed consent form.

Exclusion criteria

Exclusion criteria: 1. Patients with skin lesions in the lower abdominal region, extensive scars from previous surgeries, or poor acoustic access caused by pelvic chemotherapy, etc.; 2. Patients with poor wound healing in the treatment area, or skin ulcers/infections; 3. Patients with severe systemic diseases; 4. Patients with uterine malformations, uterine fibroids, excessive abdominal subcutaneous fat, severe peritoneal effusion, intestinal flatulence, or those in whom the uterine fundus cannot be satisfactorily palpated due to other reasons.

Design outcomes

Primary

MeasureTime frame
The amount of bleeding 2 hours and 24 hours after delivery;

Secondary

MeasureTime frame
Incidence of postpartum hemorrhage;Fundal height, three-dimensional uterine volume on ultrasound;Hematological parameters (complete blood count, liver and renal function);Duration of postpartum lochia;Outcome of subsequent pregnancy;Ovarian function;Cutaneous reactions;Incidence of adverse events;Use of hemostatic interventions;Incidence of postpartum complications;Uterine smooth muscle contractile tension (animal study);Key targets and signaling pathways (transcriptomics, proteomics, metabolomics);

Countries

China

Contacts

Public ContactLuo Xin

The First Affiliated Hospital of Chongqing Medical University

luoxin203212@163.com+86 158 2610 9160

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Mar 20, 2026