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Methods for In Vivo Biomechanical Testing on Brachial Plexus in Neonatal Piglets

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An assessment tool for brachial plexus regional anesthesia performance: establishing construct validity and

Viren N Naik¹, Anahi Perlas, Deven B Chandra

¹St. Michael's Anesthesia Research into Teaching Group, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.

Regional Anesthesia and Pain Medicine

|January 2, 2007

Summary

This study validates objective assessment tools for interscalene brachial plexus block (ISB) performance. Senior trainees demonstrated superior skills, confirming the assessment

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Area of Science:

Anesthesiology
Medical Education
Ultrasound-Guided Procedures

Background:

Subjective evaluations limit technical skill assessment in regional anesthesia.
Objective tools are needed to enhance the validity and reliability of in-training assessments.
A devised assessment for interscalene brachial plexus block (ISB) performance requires validation.

Purpose of the Study:

To determine the validity and reliability of a new assessment tool for residents performing an interscalene brachial plexus block (ISB).

Main Methods:

Prospective study involving junior and senior anesthesia trainees performing an ISB.
Trainee performance was videotaped and evaluated by blinded expert raters using a checklist and global rating scale.
Construct validity was assessed by the ability to discriminate between different training levels.

Main Results:

Senior trainees significantly outperformed junior trainees on both the global rating scale and checklist.
Excellent interrater reliability was observed for global rating scores (r = 0.85).
Good interrater reliability was found for checklist scores (r = 0.74).

Conclusions:

The devised assessment modalities are valid, reliably distinguishing between different levels of trainee experience.
Objective measures for technical skills in regional anesthesia are feasible and enhance competency assessments.