The Minimum Effective Volume of Ropivacaine in Ultrasound-guided Supraclavicular Block

• Status: Completed
• Trial end date: 2015-10-01
• Target enrollment: 0
• Participant gender: All

Summary

The aim of this study is to determine the minimum effective volume of local anesthetic (ropivacaine 0.275% and 0.325%) required to produce an effective double-injection USG-SCB for surgical anesthesia in 90% of patients (MEV90) in young group (18-40 years) and in middle aged group (40-65 years) of patients scheduled for elective surgery of one upper limb distal to the shoulder.

• Phase: N/A
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Huazhong University of Science and Technology
• Treatments: Ropivacaine

Criteria

Inclusion Criteria:

1. age between 18 and 65 years

2. ASA 1-3

3. body mass index between 18 and 35kg/m2

Exclusion Criteria:

1. inability to consent to the study

2. pregnancy

3. allergy to local anesthetics

4. preexisting neuropathy or coagulopathy

5. prior surgery in the supraclavicular region