Comparison of Ultrasound-Guided Infraclavicular Block and Ultrasound-Guided Axillary Block

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

224 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-09-30

Study Completion Date

2013-03-31

Brief Summary

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The purpose of this study is to compare the rate of complete sensory block at 30 minutes following ultrasound-guided single injection infraclavicular block and ultrasound-guided double injection axillary block. The investigators research hypothesis is that both blocks will show comparable rates of complete sensory block at 30 minutes.

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Detailed Description

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Conditions

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Anesthesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Ultrasound-guided infraclavicular block

Ultrasound-guided single injection infraclavicular block

Group Type ACTIVE_COMPARATOR

Ultrasound-guided infraclavicular block

Intervention Type PROCEDURE

Ultrasound-guided single injection infraclavicular block: using an in-plane technique, 30 mL of mepivacaine 1.5% is injected at the posterior aspect of the artery.

Ultrasound-guided axillary block

Ultrasound-guided double injection axillary block

Group Type ACTIVE_COMPARATOR

Ultrasound-guided axillary block

Intervention Type PROCEDURE

Ultrasound-guided double injection axillary block: using an in-plane technique, 25 mL of mepivacaine 1.5% is injected postero-medial to the artery. During needle withdrawal, 5 mL of the same solution is injected close to the musculocutaneous nerve.

Interventions

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Ultrasound-guided infraclavicular block

Ultrasound-guided single injection infraclavicular block: using an in-plane technique, 30 mL of mepivacaine 1.5% is injected at the posterior aspect of the artery.

Intervention Type PROCEDURE

Ultrasound-guided axillary block

Ultrasound-guided double injection axillary block: using an in-plane technique, 25 mL of mepivacaine 1.5% is injected postero-medial to the artery. During needle withdrawal, 5 mL of the same solution is injected close to the musculocutaneous nerve.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* 18 years or older
* American Society of Anesthesiologists Class 1 to 3
* Undergoing a surgery at the elbow, forearm, wrist or hand under regional anesthesia

Exclusion Criteria

* Age less than 18 years
* Body mass index more than 40 kg/m2
* Weight less than 45 kg
* Patient refusal
* Contraindication to regional anesthesia (coagulopathy, local infection at the puncture site, systemic infection)
* Previous neurological deficit in the operated arm
* Severe renal or hepatic failure
* Prior surgery in the axillary or infraclavicular area
* Pregnancy or breast-feeding

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No