الفهرس 
APPLIED ANATOMYOnly 14 pages are availabe for public view
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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.