Ultrasound Guided Intercostobrachial Nerve Block

Not Applicable

Completed

• Conditions: Anaesthesia
• Interventions: Drug: 10ml ropivacain 0.5%

• Registration Number: NCT02805582
• Lead Sponsor: Dr. Christoph Ilies

Brief Summary

The intercostobrachial nerve underlies many anatomical variations. For surgery of the upper arm the axilla is usually not anaesthetized by a brachial plexus block, which therefore needs to be completed by an intercostobrachial nerve block. The optimal access for an ultrasound guided block of the intercostobrachial nerve is not yet known. The investigators compare a proximal and a more distal approach to the nerve referred to onset time, sensory blocked area and duration.

Detailed Description

The participants will be randomized into two groups:

Group one receives a modified PECS 2 (thoracic wall) block above the second intercostal space with injection between the Musculus serratus anterior and Musculus pectoralis minor.

Group 2 receives a subpectoral block under the pectoralis major muscle at the medial boarder of the axillary triangle.

Study Timeline

• Study First Submitted: 2016-04-28
• Study First Submitted QC: 2016-06-17
• Study First Posted: 2016-06-20
• Study Start: 2016-08
• Primary Completion: 2017-09
• Study Completion: 2018-02
• Status Verified: 2018-04
• Last Update Submitted: 2018-04-11
• Last Update Posted: 2018-04-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 29

Inclusion Criteria

• patients planned for vascular access surgery of the upper arm
• surgery planned under regional anaesthesia

Exclusion Criteria

• patients refusal
• age under 18
• allergy against local anaesthetics
• polyneuropathies

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Anterior musculus serratus block	10ml ropivacain 0.5%	Proximal nerve block above the second intercostal space between Musculus serratus anterior and Musculus pectoralis minor. Intervention: 10ml ropivacain 0.5%
Subpectoral block	10ml ropivacain 0.5%	Distal nerve block under the Musculus pectoralis major at the medial border of the axillary triangle. Intervention: 10ml ropivacain 0.5%

Primary Outcome Measures

Name	Time	Method
Blocked area in squared cm	Assessment 30 minutes after intervention	Area of sensory loss to pin prick test

Secondary Outcome Measures

Name	Time	Method
Block onset time in minutes	Complete timeframe of 45 minutes with testing every 5 minutes	Onset time of complete analgesia. Assessment by pin prick test in the middle of the axilla
Block duration in minutes	Assessment every 30 minutes for 8 hours after nerve block	Complete analgesia to pin prick in the middle of the axilla
The pain numeric rating scale (NRS) during surgical manipulation in the axilla	From beginning to end of surgery. Estimated mean duration of 90 minutes.

Trial Locations

Locations (1)

Marienhospital Stuttgart, Dpt. of Anaesthesiology; 🇩🇪 Stuttgart, Baden Württemberg, Germany