What is a dynamic airway assessment?
The comprehensive dynamic airway assessment (CDAA) extrapolates the principles of awake fiber-optic intubation, allowing a complete upper airway assessment, including the subglottis with decannulation under direct vision, if appropriate.
What is the difficult airway assessment for laryngoscope?
Difficult laryngoscopy is inability to view the glottis opening using a conventional curve blade laryngoscope, corresponding to a Cormack and Lehane III or IV grade view, in which only epiglottis or only pharynx and tongue, respectively, may be visualized, whereas difficult intubation is defined as usage of direct …
What is dynamic airway management?
Dynamic airway compression occurs when the pressure surrounding the airway exceeds the pressure within the airway lumen. Dynamic collapse of the intrathoracic airways occurs during forced exhalation when intrapleural pressure exceeds pressures within the intrathoracic airway lumen.
How can you tell if someone is protecting the airway?
If you insert a tube from the outside to the inside to open up the upper airways and the patient doesn’t need supplemental oxygen or increased ventilation, then that is airway protection.
What factors predict a difficult intubation?
The distance from the thyroid notch to the mentum (thyromental distance), the distance from the upper border of the manubrium sterni to the mentum (sternomental distance), and a simple summation of risk factors (Wilson risk sum score) are widely recognized as tools for predicting difficult intubation.
Which of the following is an example of an advanced airway?
Advanced Airway Examples are supraglottic devices (laryngeal mask airway, laryngeal tube, esophageal-tracheal) and endotracheal tube.
Is there a way to predict difficult airway intubation?
In patients who have never been intubated, there is no method of prediction of difficult intubation that is both highly sensitive and highly specific Despite these caveats, airway assessment is valuable as it helps the airway practitioner develop the mindset of anticipating difficulties and planning appropriately
How many difficult airway intubations are there in Denmark?
A Danish study of ~188,000 intubations by anaesthetists in Denmark found that of the ~3100 difficult airways (3 or more intubation attempts), 93% were unanticipated. When the provider anticipated difficult airway, only about 25% actually ended up being difficult. The numbers for predicting difficult bag-value mask ventilation were similar.
Is the Heaven criteria useful for emergency intubation?
Existing difficult airway prediction tools are not practical for emergency intubation and do not incorporate physiological data. The HEAVEN criteria (Hypoxaemia, Extremes of size, Anatomic challenges, Vomit/blood/fluid, Exsanguination, Neck mobility) may be more relevant for emergency rapid sequence intubation (RSI).
What are the guidelines for management of the difficult airway?
Practice guidelines for management of the difficult airway: an updated report by the American Society of Anesthesiologists Task Force on Management of the Difficult Airway. Anesthesiology. 2003 May;98 (5):1269-77.