Comparison of the 'Sniffing the morning air' position and simple head extension for Glottic visualization during direct Laryngoscopy

A. H. Nur Hafiizhoh, Choy Yin Choy

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Background: this was a prospective randomized single-blinded clinical trial comparing the glottic views obtained during direct laryngoscopy between the 'sniffing the morning air' position and simple head extension.Methods: a sample of 378 patients, aged 18 to 75 years old with asa physical status i or ii, scheduled for elective surgery under general anesthesia with endotracheal intubation, were randomized into 2 groups. Group A used the sniffing position during the first laryngoscopy while group B was put in simple head extension position. positions were then interchanged for the second laryngoscopy. Sniffing position was obtained by placing a 7 cm height non-compressible cushion under the patient's head. In simple head extension, patient's head was placed fat. Glottic visualization was assessed based on the Cormack & lehane scale. intubation was performed after second laryngoscopy and success rate of first attempt intubation was compared.Results: the distribution of patients with different Cormack & lehane scores between the two intubation positions were significantly different (p < 0.001). Changing over to the 'Sniffing position' resulted in improvement of the Cormack& Lehane scores in 109 (57.7%) patients, no change in 75 (39.7%) or worsening in 5 (4.8%) patients. Successful intubation at first attempt was better (p<0.05) with Group A: 156 (83.5%) while Group B: 121 (64.0%).Conclusion: sniffing position provided better glottic visualization score and increased the successful rate of intubation as compared to simple head extension.

    Original languageEnglish
    Pages (from-to)399-405
    Number of pages7
    JournalMiddle East Journal of Anesthesiology
    Volume22
    Issue number4
    Publication statusPublished - 2014

    Fingerprint

    Laryngoscopy
    Tongue
    Intubation
    Air
    Head
    Intratracheal Intubation
    General Anesthesia
    Fats
    Clinical Trials

    Keywords

    • Cormack & Lehane score
    • Glottis view
    • Intubation
    • Simple head extension
    • Sniffing position

    ASJC Scopus subject areas

    • Anesthesiology and Pain Medicine

    Cite this

    Comparison of the 'Sniffing the morning air' position and simple head extension for Glottic visualization during direct Laryngoscopy. / Nur Hafiizhoh, A. H.; Choy, Choy Yin.

    In: Middle East Journal of Anesthesiology, Vol. 22, No. 4, 2014, p. 399-405.

    Research output: Contribution to journalArticle

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