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Research Journal of Medical Sciences

ISSN: Online 1993-6095
ISSN: Print 1815-9346
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Accuracy of Two Measurements Using Different Anatomical Facial Landmarks for Determining the Appropriate Size of Oropharyngeal Airway: A Prospective Comparative Cross‐Over Study

B.H. Arathi, G.C. Namratha, B.O. Roopa and S. Punita Priya
Page: 565-568 | Received 15 Oct 2024, Published online: 09 Dec 2024

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https://doi.org/10.36478/makrjms.2024.12.565.568

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Abstract

Several external facial measurements are recommended for selecting the appropriate size of Guedel’s oropharyngeal airway. This study compared two guidelines: the distance from the corner of the mouth to the angle of the mandible (DAM) and the maxillary incisors to the angle of the mandible (DIM), as per American Heart Association and European Resuscitation Council guidelines, respectively. This prospective crossover study included 78 patients without features of a difficult airway. Airways corresponding to DAM and DIM measurements were inserted postinduction and muscle relaxation, grouped as DAM and DIM, respectively. Adequacy of ventilation was assessed via chest expansion and ventilator‐delivered tidal volume. The tip position was evaluated using a flexible fiberoptic bronchoscope. In the DAM group, chest expansion and tidal volume (397.6±57.7 ml) were significantly better than the DIM group (335.1±70.2ml., P<0.001). The tip was ideally placed above the glottis in all DAM group patients, ensuring a clear glottic view. In the DIM group, only 23% had ideal placement., 76.9% experienced tip‐induced epiglottis obstruction, with 14.1% showing complete blockage. Complications, including oropharyngeal bleeding and epiglottis injury, were observed in 12 DIM group patients. The DAM‐based Guedel’s airway size provided superior ventilation and ideal tip placement compared to the DIM‐based approach.

How to cite this article:

B.H. Arathi, G.C. Namratha, B.O. Roopa and S. Punita Priya. Accuracy of Two Measurements Using Different Anatomical Facial Landmarks for Determining the Appropriate Size of Oropharyngeal Airway: A Prospective Comparative Cross‐Over Study.
DOI: https://doi.org/10.36478/10.36478/makrjms.2024.12.565.568
URL: https://www.makhillpublications.co/view-article/1815-9346/10.36478/makrjms.2024.12.565.568