Publication: Comparison of sniffing position and simple head extension for visualization of glottis during direct laryngoscopy
Date
2011
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Kathmandu University
Abstract
ABSTRACT
Background
The ability of good glottis visualization during direct laryngoscopy is major
determinant of easy tracheal intubation. Sniffing position for laryngoscopy is
considered as gold standard and ideal position. Several studies have questioned
the validation of sniffing potion.
Objectives
This study aims to compare relative efficacy of sniffing position and simple head
extension for visualization of glottis during direct laryngoscopy.
Methods
Four hundred patients undergoing elective surgery under general anesthesia
requiring endotracheal intubation were randomized into two groups and study
was concluded. Glottic visualization was assessed using modified Cormack and
Lehane classification. After laryngoscopy, tracheal intubation was performed and
intubation difficulty scale was noted.
Results
Both the groups were comparable regarding glottis visualization. Both the groups
were comparable in demographic profiles. All the intubation difficulty scale
variables were comparable in both the groups except N3. Total Intubation Difficulty
Score was better in sniffing position than in simple head extension group.
Conclusion
Glottic visualization and intubation difficulty score was better in sniffing position as
compared to simple head extension.
KEY WORDS
sniffing position, simple head extension, direct laryngoscopy
Description
Bhattarai B, Shrestha SK, Kandel S
Department of Anesthesiology, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Dhulikhel, Nepal