Comparative effectiveness of the C-MAC video laryngoscope versus direct laryngoscopy in the setting of the predicted difficult airway. (49/98)

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Development of an instrument for a primary airway provider's performance with an ICU multidisciplinary team in pediatric respiratory failure using simulation. (50/98)

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A national survey of airway management training in United States internal medicine-based critical care fellowship programs. (51/98)

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Patient safety in pre-hospital emergency tracheal intubation: a comprehensive meta-analysis of the intubation success rates of EMS providers. (52/98)

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Strategies to prevent airway complications: a survey of adult intensive care units in Australia and New Zealand. (53/98)

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Indirect laryngoscopy with rigid 70-degree laryngoscope as a predictor of difficult direct laryngoscopy. (54/98)

INTRODUCTION AND OBJECTIVES: The commonly-used predictors for difficult airway management are not very accurate. We investigate the power of indirect laryngoscopy with the rigid 70-degree laryngoscope as a predictor of difficult visualisation of the larynx with direct laryngoscopy. METHODS: We performed preoperative indirect laryngoscopy with the rigid laryngoscope on 300 patients. The vision obtained was classified into four grades: 1 (vocal cords visible), 2 (posterior commissure visible), 3 (epiglottis visible) and 4 (no glottic structure visible). Grades 3 and 4 were considered predictors of difficult larynx visualisation. Next, direct laryngoscopy with the Macintosh laryngoscope was carried out on the patients under general anaesthesia. Positive value was defined as a Cormack and Lehane III and IV. Other common clinical predictors were also analysed. A logistic regression model using the relevant variables was elaborated. We also investigated predictors of difficult visualisation of the larynx with indirect laryngoscopy. RESULTS: The model found and the coefficients for preparing it were: f(x)= -10.097+5.145 indirect laryngoscopy (3-4)+3.489 retrognathia+2.548 mouth opening <3.5 cm+1.911 thyromental distance <6.5 cm+.352 snorer+(0.151 cm neck thickness). This model provided a correct result in 94.3% of cases. In the case of indirect laryngoscopy, the model found was: f(x)=-2.641+0.920 snorer+0.875 cervical mobility. CONCLUSIONS: Indirect laryngoscopy was the independent variable with the greatest predictive power. Snoring is a common predictor in both laryngoscopy models.  (+info)

Respiratory care year in review 2011: long-term oxygen therapy, pulmonary rehabilitation, airway management, acute lung injury, education, and management. (55/98)

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Degrees of reality: airway anatomy of high-fidelity human patient simulators and airway trainers. (56/98)

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