The study of the lowest effective concentration and the best concentration of ropivacaine in the operation of the great saphenous vein with peripheral nerve block

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000039897

Enrollment

Unknown

Registered

2020-11-13

Start date

2020-11-15

Completion date

Unknown

Last updated

2021-02-22

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

Conditions

Varicose Great Saphenous Vein

Interventions

experimental group:Ultrasound guided inferior femoral nerve and upper popliteal approach sciatic nerve combined with femoral branch block of genital femoral nerve

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Age 45-70 years old; 2. ASA I-III level; 3. Elective unilateral high ligation and stripping of the great saphenous vein, the expected operation time is 1 to 3 hours; 4. All signed informed consent, conducted pain and exercise scoring education and cooperated in data collection, and voluntarily entered clinical trials to study patients.

Exclusion criteria

Exclusion criteria: 1. Infection at the puncture site; 2. History of allergy to anesthetics; 3. Severe diseases of vital organs; neurological diseases; history of alcoholism or drug dependence; 4. Those who are unable to communicate, such as visual and hearing impairment, language barriers, etc.

Design outcomes

Primary

Measure	Time frame
The concentration of each patient;VAS, Bromage score;Anesthesia effect;	—

Secondary

Measure	Time frame
Blood pressure and heart rate (HR) before and after anesthesia block;Total operation time;Postoperative pain classification;The amount of fluid and vasoactive drugs used during surgery;	—

Countries

China

Contacts

Public ContactYuelan Wang

Shandong Provincial Qianfoshan Hospital

wyldgf@163.com+86 15953105780

Outcome results

None listed

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