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Published in: European Archives of Oto-Rhino-Laryngology 3/2024

Open Access 29-12-2023 | Laryngoscopy | Laryngology

A comparative evaluation of the sniffing, the simple head extension and the head hyperextension positions for laryngoscopic view and intubation difficulty in adults undergoing direct laryngoscopy

Authors: Y. H. Hadhoud, Mohamed A. Baraka, Mohamed Saleh, Ahmed M. Refaat

Published in: European Archives of Oto-Rhino-Laryngology | Issue 3/2024

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Abstract

Objective

This work aimed to compare between the laryngoscopy positions; sniffing, simple head extension and head hyperextension positions to assess whether the laryngeal view, intubation time and intubation difficulty could improve with one of these positions than the others.

Design

Prospective randomized three arms clinical trial.

Setting

Operation room, the phoniatrics unit [removed for blind peer review].

Participants

The study included 75 cases with 25 cases in each group. Group "A" with head in the sniffing position, Group "B" with the head in simple extension position, Group "C" with head in hyperextension position.

Results

The three groups were compared regarding intubation time and laryngoscopic view time. Intubation time showed statistically significant difference between the three groups. Mean of sniffing group (No. = 25) was 13.19 s (± 3.35). Mean of simple extension group (No. = 25) was 11.29 s (± 3.14). Mean of Hyperextension group (No. = 25) was 14.39 s (± 4.14). Laryngoscopic view time showed statistically highly significant difference between the three groups. Mean of sniffing group (No. = 25) was 17.19 s (± 7.27). Mean of simple group (No. = 25) was 12.18 s (± 4.46). Mean of hyperextension group (No. = 25) was 17.08 s (± 6.51).

Conclusion

Comparing the sniffing, the simple extension and the hyperextension positions, the simple extension position showed the best time regarding intubation time and laryngoscopic view time.
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Metadata
Title
A comparative evaluation of the sniffing, the simple head extension and the head hyperextension positions for laryngoscopic view and intubation difficulty in adults undergoing direct laryngoscopy
Authors
Y. H. Hadhoud
Mohamed A. Baraka
Mohamed Saleh
Ahmed M. Refaat
Publication date
29-12-2023
Publisher
Springer Berlin Heidelberg
Published in
European Archives of Oto-Rhino-Laryngology / Issue 3/2024
Print ISSN: 0937-4477
Electronic ISSN: 1434-4726
DOI
https://doi.org/10.1007/s00405-023-08386-y

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