Journal of clinical anesthesia
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To determine (a) whether the ability to visualize a patient's airway preoperatively correlates with the ability to visualize his or her larynx during laryngoscopy and (b) whether the presence of certain anatomic characteristics allows anesthetists to predict difficult laryngoscopic visualization and intubation. ⋯ Our study confirms work showing that the ability to visualize structures of the hypopharynx is a good predictor of subsequent glottic visualization during laryngoscopy and of ease of intubation.
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Randomized Controlled Trial Clinical Trial
Alkalinization of mepivacaine does not alter onset of caudal anesthesia.
To determine the effect of alkalinization of mepivacaine on onset of caudal anesthesia. ⋯ Alkalinization of mepivacaine does not significantly accelerate the onset of caudal anesthesia.
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To evaluate the hemodynamic and respiratory effects of percutaneous transtracheal high-frequency jet ventilation (HFJV) during difficult intubation using fiberoptic bronchoscopy under general anesthesia. ⋯ Transtracheal HFJV under general anesthesia with etomidate, alfentanil, and vecuronium provided satisfactory hemodynamic conditions and pulmonary gas exchange. Percutaneous transtracheal HFJV can be used safely to manage patients with a difficult airway under general anesthesia using fiberoptic bronchoscopy.