The study of the minimum effective concentration of ropivacaine for ultrasound-guided costoclavicular brachial plexus block

Biased-coin design to find the minimum effective concentration of ropivacaine for ultrasound-guided costoclavicular brachial plexus block

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2200057380

Enrollment

Unknown

Registered

2022-03-10

Start date

2022-03-01

Completion date

Unknown

Last updated

2023-10-16

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

Conditions

Upper limb disease

Interventions

intervention groups:Defferent doses groups

Eligibility

Sex/Gender

All

Age

18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. ASA classification I-III;; 2. 18-80 years old; 3. Surgery for upper limb diseases; 4. Sign the informed consent voluntarily.

Exclusion criteria

Exclusion criteria: 1. Refusing to participate in the study; 2. Local anesthetic allergy; 3. Contraindication of nerve block anesthesia; 4. Mental retardation or inability to communicate; 5. Complicated with serious systemic diseases; 6. Operation history of subclavian fossa or infection of puncture site; 7. Coagulation dysfunction; 8. Anatomical malformation.

Design outcomes

Primary

Measure	Time frame
Response Rate;	—

Countries

China

Contacts

Public ContactBingwei Hu

Tongde Hospital of Zhejiang Province

whoboy555@hotmail.com+86 13456976077

Outcome results

None listed

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