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document
A comparison of the upper lip bite test ( a simple new technique ) with modified Mallampati classification in predicting difficulty in endotracheal intubation : a prospective blinded study . We explored the possibility that a simple and single test could replace the modified Mallampati score for either a difficult or an unaccomplished tracheal intubation in an impending hypoxic patient . Three hundred adult patients were enrolled in this study . They were subjected to the following assessments : 1 ) oropharyngeal class according to the modified Mallampati criteria ; 2 ) the new , upper lip bite criteria-class I = lower incisors can bite the upper lip above the vermilion line , class II = lower incisors can bite the upper lip below the vermilion line , and class III = lower incisors can not bite the upper lip ; and 3 ) laryngeal view grading according to Cormack 's criteria . The incidence of difficult intubation was 5.7 % . The upper lip bite test showed significantly higher specificity and accuracy than the modified Mallampati test ( P < 0.001 ) . Comparisons of sensitivity , positive and negative predictive values , between the two tests , however , did not reveal any significant differences ( P > 0.05 ) . In conclusion , the upper lip bite test is an acceptable option for predicting difficult intubation as a simple , single test .
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Intervention_Physical
upper lip bite test ( a simple new technique ) with modified Mallampati classification
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Intervention_Physical
oropharyngeal class according to the modified Mallampati criteria ;
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Intervention_Physical
the new , upper lip bite criteria-class I = lower incisors can bite the upper lip above the vermilion line , class II = lower incisors can bite the upper lip below the vermilion line , and class III = lower incisors can not bite the upper lip ; and
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Intervention_Physical
laryngeal view grading according to Cormack 's criteria .
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Intervention_Physical
The upper lip bite test
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Intervention_Physical
modified Mallampati test
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Outcome_Physical
endotracheal intubation
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Outcome_Physical
Mallampati score
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Outcome_Physical
tracheal intubation
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Outcome_Physical
impending hypoxic
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Outcome_Physical
Cormack 's criteria
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Outcome_Physical
incidence of difficult intubation
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Outcome_Other
specificity
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Outcome_Other
accuracy
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Outcome_Physical
Mallampati test
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Outcome_Other
sensitivity , positive and negative predictive values
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Participant_Condition
endotracheal intubation
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Participant_Condition
hypoxic
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Participant_Sample-size
Three hundred
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Participant_Age
adult
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Participant_Condition
difficult intubation