SummaryThe purpose of this investigation was the description of structure and process quality based on the analysis of 1612 fibreoptic intubations. We evaluated all fibreoptic intubations (nasotracheal in awake patients and orotracheal in anaesthetised patients) from a previously described database over a period of 2 years. We assessed structure quality by evaluating the distribution of the fibreoptic intubations across all staff anaesthetists, and process quality by analysing the number of attempts, the time required, the cases where we had to switch to conventional intubation and the complications. In all, 955 nasotracheal and 657 orotracheal intubations were evaluated. Almost all anaesthetists performed at least 15 nasotracheal and 10 orotracheal intubations. The success rate was 85.2% at the first attempt. Within 3 min, 93.9% of all fibreoptic intubations were successfully completed. In 24 cases, fibreoptic intubation was abandoned. Severe nasal bleeding as a major complication occurred in 1.3% of the nasotracheal intubations.
A fundamental skill of the anesthesiologist is airway management. We validated a simple endotracheal intubation algorithm with a large proportion of fiberoptic tracheal intubations used for years in daily practice. Over 2 yr, 13,248 intubations (>90% of all intubations, including obstetrics and ear, nose, and throat patients) in a heterogeneous patient population at our acute care hospital were evaluated prospectively. About 80 physician and nurse anesthetists were involved. Once the indication for intubation (oral or nasal) was established, the first step was to choose between the primary conventional technique (laryngoscope with Macintosh blades) and the primary fiberoptic technique. For the conventional technique, a well defined procedure had to be followed (maximum of two attempts at intubation; if unsuccessful, switch to secondary oral fiberoptic intubation). For the primary fiberoptic technique, the anesthesiologist had to decide between nasotracheal intubation in awake patients and oral intubation in anesthetized patients. Fiberoptics were used for 13.5% of the intubations. By following our algorithm, intubation failed in 6 out of 13,248 cases (0.045%; 95% confidence interval 0.02%-0.11%). We demonstrate that a simple algorithm for endotracheal intubation, basically limited to fiberoptics as the only aid, is successful in daily practice. Only methods that are practiced daily can be used successfully in emergencies.
Summary
Primary tracheostomy under local anaesthesia is indicated in the management of an anticipated difficult airway in patients in whom less invasive procedures are expected to fail or have already failed. However, primary tracheostomy is a relatively complex procedure and places not inconsiderable stress on the patient. In a prospective study in our hospital over a period of 22 months, we were able to avoid primary tracheostomy in 11 patients with very difficult airways. All 11 patients were managed with prophylactically inserted transtracheal catheters and jet ventilation of the lungs. This ensured an adequate oxygen supply during tracheal intubation, and made overall patient management much easier. This method has established itself as a standard procedure in our hospital.
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