A Multicenter Study of Color Doppler Ultrasonography in Evaluating the Function of Calf Penetrating Vein with Sitting Position and Muscle Pump

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2200065447

Enrollment

Unknown

Registered

2022-11-04

Start date

2022-11-04

Completion date

Unknown

Last updated

2024-01-08

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

Conditions

Chronic Venous Disease, CVD

Interventions

Observation group:No intervention

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18-65 years; 2. Healthy volunteers; 3. C1-C6 type of CVD patient; 4. BMI is 18-30 kg/m2; 5. Willing to follow the research procedure and sign the informed consent form.

Exclusion criteria

Exclusion criteria: 1. Patients with deep and superficial venous thrombosis of lower limbs; 2. Patients with arterial occlusive disease of lower extremities; 3. Vein ulcer or obesity affecting ultrasound examination; 4. Patients who cannot stand on one leg.

Design outcomes

Primary

Measure	Time frame
caliber of perforating veins;Time of external flow of perforating veins;	—

Countries

China

Contacts

Public ContactYongyan Gao

The Third Medical Center of PLA General Hospital

gaoyongyan7@163.com+86 18910900177

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026