A randomised controlled trial comparing meat-based with human cadaveric models for teaching ultrasound-guided regional anaesthesia.
Anaesthesia
; 71(8): 921-9, 2016 08.
Article
em En
| MEDLINE
| ID: mdl-26993374
ABSTRACT
The aim of this prospective, blinded, randomised controlled study was to compare novices' acquisition of the technical skills of ultrasound-guided regional anaesthesia using either a meat phantom model or fresh-frozen human cadavers. The primary outcome was the time taken to successfully perform an ultrasound-guided sciatic nerve block on a cadaver; secondary outcomes were the cumulative score of errors, and best image quality of the sciatic nerve achieved. After training, the median (IQR [range]) time taken to perform the block was 311(164-390 [68-600]) s in the meat model trained group and 210 (174-354 [85-600]) s in the fresh-frozen cadaver trained group (p = 0.24). Participants made a median (IQR [range]) of 18 (14-33 [8-55]) and 15 (12-22 [8-44]) errors in the two groups respectively (p = 0.39). The image quality score was also not different, with a median (IQR [range]) of 62.5 (59.4-65.6 [25.0-100.0])% vs 62.5 (62.5-75.0 [25.0-87.5])% respectively (p = 0.58). The training and deliberate feedback improved all participants' block performance, the median (IQR [range]) times being 310 (206-532 [110-600]) s before and 240 (174-354 [85-600]) s after training (p = 0.02). We conclude that novices taught ultrasound scanning and needle guidance skills using an inexpensive and easily constructed meat model perform similarly to those trained on a cadaveric model.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Ultrassonografia de Intervenção
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Anestesiologia
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Bloqueio Nervoso
Tipo de estudo:
Clinical_trials
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Observational_studies
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Prognostic_studies
Limite:
Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article