The Study of Ropivacaine Median Effective Concentration in Ultrasound-guided Supraclavicular Brachial Plexus Block

Phase 4

• Conditions: Anesthesia
• Interventions: Drug: ropivacaine

• Registration Number: NCT02323282
• Lead Sponsor: Yu Shan

Brief Summary

To determine the median effective concentration of ropivacaine hydrochloride for ultrasound-guided supraclavicular brachial plexus block. The result can provide reference for choosing appropriate drug concentration in clinical anesthesia.

Detailed Description

Not available

Study Timeline

• Status Verified: 2014-10
• Study Start: 2014-10
• Study First Submitted: 2014-10-05
• Primary Completion: 2014-12
• Study Completion: 2014-12
• Study First Submitted QC: 2014-12-18
• Last Update Submitted: 2014-12-18
• Study First Posted: 2014-12-23
• Last Update Posted: 2014-12-23

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• ASA I or II

Exclusion Criteria

• upper limb paresthesia
• allergic to local anesthetics
• surgery history of clavicle
• BMI>30kg/m^2

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
ropivacine	ropivacaine	-

Primary Outcome Measures

Name	Time	Method
the affection of nerve block	30 minutes	The anesthetic efficacy of five nerves, respectively named lateral antebrachial cutaneous nerve, medial cutaneous nerve of the forearm, radial nerve, median nerve, and ulnar nerve was assessed within 30 min after anesthesia. The next concentration of ropivacaine was adjusted according to the response of the previous patient using up-down sequential allocation.

Trial Locations

Locations (1)

Department of Anesthesiology,Sixth People's Hospital; 🇨🇳 Shanghai, Shanghai, China