Purpose and principles
Separate liberation from ventilatory support from airway safety, use a structured weaning pathway, and respond safely to secretion burden or tracheostomy emergencies.
Liberation from invasive ventilation is a sequence rather than one event: recognise readiness, reduce avoidable load, test spontaneous breathing, decide whether the upper airway and cough will remain safe after tube removal, and provide planned support afterwards. Failure at each stage has different causes. A patient can breathe through an endotracheal tube yet fail extubation because of oedema or secretion retention; another may have a protected airway but inadequate muscle endurance. Naming the failing component directs treatment and avoids repeated, harmful trials without learning.
A tracheostomy can reduce upper-airway resistance, facilitate comfort, communication, suction and prolonged weaning, but it introduces risks of obstruction, displacement, bleeding, infection and swallowing problems. Safe care depends on bedside information about tube type, size, cuff, date and surgical anatomy; immediately available emergency equipment; trained staff; humidification; and multidisciplinary review. Decannulation is a clinical endpoint after the original indication has resolved and airway, ventilation, cough and secretion control are adequate. Total laryngectomy is different anatomy: the stoma is the only airway.