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| Effect of Different Head Position in Endotracheal Intubation Assisted with Macintosh Laryngoscope |
| Department of Anesthesiology, the Second Affiliated Hospital of Xi'an Jiao Tong University, Shanxi Xi'an 710004 |
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Abstract 【Objective】 To discuss the difference of the pharyngeal stimulation at endotracheal intubation assisted with the Macintosh laryngoscope through a simple head hypsokinesis , or modifying the position of laryngeal lens,.【Methods】864 patients aged between 15~72 at ASAⅠ~Ⅱ were chosen, who would take endotracheal intubation under general anesthetic and have non laryngeal operation. Patients were randomly divided into the head back group (group S) and the laryngeal lens modification group( group C). The Cormack and Lehane glottal exposure classification and successful intubation time were recorded and compared, which performed by formally trained anesthesiologists who used the same specifications of the Macintosh laryngoscope with a simple head hypsokinesis or modification of laryngoscope lens.【 Results】1 .The time of successful intubation in group S was shorter than that in group C, and the difference between the two groups was significant (P<0.05); 2. The Cormack and Lehane level in group S is higher than that in group C , and the difference was significant (P<0.05); 3. In the next day's pharyngoscope testing, the pharyngeal injuries in group S were serious and mainly concentrated in the lingual surface of epiglottis , while those in group C were mild and mainly concentrated in pharyngeal arch ; 4. The incidence of pharyngeal hemorrhage and tooth loss in the group S were higher than those in group C (P<0.05); The two groups had no sequelae of spinal cord injury.【Conclusion】 With the assistance of the Macintosh laryngoscope, a simple head hypsokinesis at endotracheal intubation takes less time than laryngeal lens modification, but pharyngeal stimulation is heavier and the incidence of complications are higher.
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Received: 12 July 2015
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2015, Vol. 32 
