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Anaesth Intensive Care · Feb 1999
Prevalence and prediction of difficult intubation in Chinese women.
- S H Wong and C T Hung.
- Department of Anaesthesia, Queen Elizabeth Hospital, Kowloon, Hong Kong.
- Anaesth Intensive Care. 1999 Feb 1; 27 (1): 49-52.
AbstractWe conducted a prospective, blind observational study to investigate the prevalence and prediction of difficult intubation in Chinese women. Two groups of Chinese women were studied (151 pregnant and 260 non-pregnant). The prevalence of difficult intubation was 1.99% in the pregnant and 1.54% in the non-pregnant group. The difference was not statistically significant. Predictive variables for difficult intubation, including modified Mallampati class, thyromental distance and atlanto-occipital extension, had high sensitivity but low positive predictive value when used alone. A shorter thyromental distance had to be used as the criterion for prediction in Chinese women. Combination of predictive variables could improve the positive predictive value.
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