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Clinical and Experimental Emergency Medicine ; (4): 22-28, 2018.
Article Dans Anglais | WPRIM | ID: wpr-713080

Résumé

OBJECTIVE: Endotracheal intubation is extremely difficult to perform in patients wearing a cervical collar for a head and neck injury. Therefore, we analyzed actual measurements using the look externally, evaluate 3-3-2, Mallampati score, obstruction, and neck mobility (LEMON) criteria before and after cervical collar application to investigate the causes of a difficult airway. METHODS: This simulation study was performed in 76 healthy volunteers. We measured the mouth opening, modified Mallampati classification, and neck extension before and after cervical collar application. RESULTS: The mean inter-incisor distance significantly decreased from 4.3 to 2.6 cm (P < 0.001). Fifty-seven participants classified as I and II were newly classified as III and IV according to the modified Mallampati classification after cervical collar application (16% to 91%). The angles of neck extension significantly decreased from 44° to 22° after cervical collar application (P < 0.001). Before cervical collar application, our simulations predicted that 14 of 76 participants (18%) would have a difficult airway, whereas after cervical collar application, 76 of 76 (100%) were predicted to have a difficult airway. CONCLUSION: All values for the LEMON criteria (mouth opening, modified Mallampati classification, and neck extension) worsened significantly after cervical collar application. Additionally, a difficult airway was predicted in all participants after cervical collar application.


Sujets)
Humains , Prise en charge des voies aériennes , Classification , Tête , Volontaires sains , Intubation trachéale , Bouche , Cou , Traumatismes du cou
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