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* From the Department of Anesthesia, Toronto General Hospital, University of Toronto, Toronto, Ontario;
Saturn Biomedical Systems,
Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; and
the Departments of Anesthesiology and Medicine, University of Washington and Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA.
Address correspondence to: Dr. Richard M. Cooper, Department of Anesthesia and Pain Management, Toronto General Hospital, 200 Elizabeth Street, 3 EN-421, Toronto, Ontario M5G 2C4, Canada. Phone: 416-340-3242; Fax: 416-340-3698; E-mail: richard.cooper{at}uhn.on.ca
Objectif : Évaluer un nouveau vidéolaryngoscope et tester sa capacité à fournir une exposition du larynx et à faciliter lintubation.
Méthode : Cinq centres, impliquant 133 opérateurs et 728 patients consécutifs, ont participé à lévaluation du nouveau vidéolaryngoscope [GlideScope® (GS)]. De nombreux opérateurs avaient une expérience nulle ou limitée du GS. Nous avons noté les données démographiques et les caractéristiques des voies aériennes, la classification Cormack-Lehane (C/L) des visualisations et la facilité à intuber avec le GS. Un échec était défini comme un abandon de la technique.
Résultats : Six patients ont été exclus à cause de données incomplètes. Une excellente (C/L 1) ou une bonne (C/L 2) exposition du larynx a été obtenue chez 92 % et 7 % des patients respectivement. Chez les 133 patients soumis aux deux tests avec le GS et à la laryngoscopie directe (LD), le GS a donné des résultats comparables ou une vue supérieure. Parmi les 35 patients avec un grade 3 ou 4 de C/L par LD, la visualisation sest améliorée à 1 C/L chez 24 patients et à 2 C/L chez trois patients. Lintubation avec le GS a été réussie chez 96,3 % des patients. La majorité des échecs sont survenus malgré une bonne ou une excellente visualisation glottique.
Conclusion : La laryngoscopie avec le GS fournit toujours une vision glottique comparable ou supérieure à la LD malgré lexpérience nulle ou limitée avec lappareil. Lintubation a été généralement réussie même lorsquon prévoyait une difficulté modérée ou importante de la LD. Le GS a été abandonné chez 3,7 % des patients. Cela pourrait correspondre au manque de protocole formel définissant léchec, à lexpérience antérieure limitée ou à la difficulté de manipuler le tube endotrachéal tout en surveillant lécran.
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