Articles: thyroid-cartilage-surgery.
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Narrow-bore cricothyrotomy retains a clinical role, due to the availability of its component equipment in acute clinical environments, ease of assembly, and operator preference. However, due to infrequent use, there is a need to model this for research and teaching. We present mathematical and laboratory models. ⋯ We can exploit the contrasting changes in inspiratory and expiratory times with the upper airway resistance to optimize conditions for emergent cannula cricothyrotomy ventilation.
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Comparative Study
Comparison of different methods of ventilation via cannula cricothyroidotomy in a trachea-lung model.
Cannula cricothyroidotomy is recommended in recent guidelines as a rescue intervention in the 'cannot-intubate cannot-ventilate' scenario. Several methods of providing ventilation via a cannula cricothyroidotomy have been described, but there are no data comparing these methods and using cannulae of differing diameters. ⋯ Extrapolated to the clinical situation, these data suggest that low-pressure devices will not deliver adequate MVs via a cannula cricothroidotomy and should no longer be advocated. Purpose-made devices should be available in all areas where anaesthesia is administered or airway interventions are performed.
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Letter Case Reports
Cannula cricothyroidotomy: management of false-negative aspiration.