Construct validity of a novel assessment tool for ultrasound-guided axillary brachial plexus block.
Anaesthesia
; 71(11): 1324-1331, 2016 11.
Article
in En
| MEDLINE
| ID: mdl-27634361
ABSTRACT
The purpose of this study was to examine the construct validity and reliability of a novel metrics-based assessment tool, previously developed for ultrasound-guided axillary brachial plexus block. Five expert and eight novice anaesthetists performed a total of 18 ultrasound-guided axillary brachial plexus blocks on the same number of patients. A trained investigator video-taped procedures according to a pre-defined protocol. Two trained consultant anaesthetists independently scored the videos using the assessment tool. Compared with novices, experts completed more steps (mean 41.0 vs. 33.1, p = 0.001), had fewer procedural errors (2.8 vs. 7.9, p < 0.0001), had fewer critical errors (0.8 vs. 1.3, p = 0.030), and fewer total errors (3.5 vs. 9.1, p < 0.0001). The mean inter-rater reliability for scoring of experts' performance was 0.91, for novices' performance was 0.84, and for all performance combined (n = 18) was 0.88. This assessment tool is valid, and discriminates reliably between expert and novice performance for placement of ultrasound-guided axillary brachial plexus blocks.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brachial Plexus
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Clinical Competence
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Ultrasonography, Interventional
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Brachial Plexus Block
Type of study:
Observational_studies
Limits:
Adult
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Female
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Humans
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Male
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Middle aged
Country/Region as subject:
Europa
Language:
En
Journal:
Anaesthesia
Year:
2016
Document type:
Article
Affiliation country:
Ireland
Publication country:
ENGLAND
/
ESCOCIA
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GB
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GREAT BRITAIN
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INGLATERRA
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REINO UNIDO
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SCOTLAND
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UK
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UNITED KINGDOM