CICO and emergency front-of-neck access: the scalpel-bougie cricothyroidotomy

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Target exams

Red flags

• CICO is the single airway emergency that cannot wait. The moment the intubation and the oxygenation have both failed across the lifelines, the front-of-neck access is performed without delay. The recurring, avoidable failure of the national audits is that the scalpel cricothyroidotomy came too late — the cognitive barrier to the act is the human factor the training must overcome, not a technical deficiency.
• Needle cricothyroidotomy is not the adult rescue. NAP4 documented that the needle technique failed repeatedly, especially in the obese, through kinking, dislodgement, and the inability to ventilate or exhale. The scalpel-bougie cricothyroidotomy is the DAS-specified adult default, and reaching for a needle set in the obese adult costs the time the brain cannot spare.
• Perseverance converts a recoverable airway into a CICO. Each repeated laryngoscopy or supraglottic insertion traumatises and swells the airway, worsens the view, and burns the safe apnoea time. The algorithm caps attempts at three per lifeline; the disciplined declaration of CICO is the sign the system is working, not an admission of defeat.
• Capnography is mandatory after the cricothyroidotomy. The continuous waveform carbon dioxide trace is the only reliable confirmation that the cuffed tube is in the trachea and not a false passage. The absence of a sustained trace mandates re-siting of the tube.
• If the cricothyroid membrane cannot be felt, make a vertical skin incision to explore, then a transverse cut through the membrane. A blind transverse skin cut in the obese or landmark-obscured neck risks the anterior jugular veins and the wrong level; the vertical exploratory incision preserves the midline and the anatomy.