Anatomical Factors to Discriminate Difficult Tracheal Intubation in Micrognathia.
10.4097/kjae.1998.35.1.40
- Author:
Kyung Tae KIM
1
;
Seung Hong LEE
;
Cheol Hoi HUR
;
Mun Cheol KIM
;
Kang Hee CHO
Author Information
1. Department of Anesthesiology, College of Medicine, Inje University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Anatomy: micrognathia;
Intubation: tracheal, difficult
- MeSH:
Classification;
Humans;
Intubation*
- From:Korean Journal of Anesthesiology
1998;35(1):40-49
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: Micrognathia is the prime, constant bony finding that signals trouble for access to the airway. Anatomical factors of difficult tracheal intubation in micrognathia have been evaluated. METHOD: Forty one patients with micrognathia were divided into 3 groups based on modified Mallampati classification. Lateral cephalometric view taken preoperatively was used to measure 13 anatomical factors. Kruskal-Wallis test and discriminant analysis were used to select the most predictable factors for distinguishing between the difficult and easy groups. RESULTS: The most discriminating factors are mandibulo-hyoid distance(V12), atlanto-occipital distance(V10) and mentum-hyoid distance(V11). The discriminant analysis using above 3 factors gives the following discriminant functions(Y1= 0.7924(V12) - 0.2154(V10) - 0.3531(V11) (discriminant function 1), Y2= -0.2177(V12) + 0.8221(V10) -0.6304(V11) (discriminent fuction 2)) and the discriminating power of difficult intubation is 72.9%. CONCLUSIONS: Modified Mallampati classification and lateral cephalometric assessment of 3 anatomical factors can predict the difficult intubation.
