Articles: intubation.
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We describe our experience with a new orotracheal tube with low-pressure cuff for anesthesia during endoscopic laryngeal surgery. Twelve consecutive patients (ASA groups II and III) undergoing microlaryngoscopy for diagnostic or operative reasons were intubated orotracheally with the tube. No complications associated with intubation or anesthesia occurred. ⋯ Woodbridge tubes), the microlaryngeal tube gives the surgeon better operating conditions and still permits conventional intermittent positive pressure ventilation without excessive increases in ventilation pressure. The advantages from the low-pressure cuff could only be seen in 7 patients. With this foregoing restriction, we recommend the use of the new microlaryngeal tube for anesthesia during microlaryngoscopy.
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Fiberoptic endotracheal intubation is a procedure recently introduced that allows a safe and atraumatic intubation in those patients with anatomic difficulties and associated pathology. Our experience on 30 patients submitted to fiberoptic endotracheal intubation is described. ⋯ Due to fibroscope handling conditions and the careful procedure, it is not recommended in emergency situations. We conclude that the method is simple and safe and that its knowledge would spread among anesthesiologists.
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Ann Oto Rhinol Laryn · Feb 1989
Model of a new generation of tracheostomy and endotracheal tubes. A preliminary study of sensors to monitor obstruction.
The feasibility of monitoring cannula obstruction was studied by conversion of the electrical resistance of substances that are capable of causing obstruction into audible auditory signals. Copper-nickel-gold electrodes were thermal pressed onto polyimide-based flexible films placed as 1-mm wide strips along the inner surface of tracheostomy and endotracheal tubes. ⋯ Quantitative estimates of responses from the IC output were computer averaged. Instantaneous obstruction detection was made possible by the immediate responsiveness of the device in the presence of obstruction.