tracheostomy
A breathing tube passed through the mouth is fine for days, but if a patient needs the ventilator for weeks the long tube becomes uncomfortable and starts to injure the throat and vocal cords. A tracheostomy solves this by creating a much shorter, more direct route: a small opening is made in the front of the neck and a short tube is placed straight into the windpipe below the voice box.
Compared with a tube through the mouth, a tracheostomy is more comfortable and secure, easier to keep clean, and needs less sedation, so patients are often more alert. Because the air now bypasses the mouth, the dead space is smaller and the work of breathing is reduced, which makes weaning easier. With special speaking valves or capped tubes, many patients can even talk, and some can eat — things that an oral breathing tube prevents.
Tracheostomy is performed either surgically in an operating theatre or at the bedside through the skin with a needle-and-dilator technique. It can be temporary — removed once the patient recovers, leaving a small scar — or permanent, as after removal of the voice box for cancer. An honest caveat: it is a procedure with risks (bleeding, infection, displacement of the tube) and it requires trained ongoing care, so the decision weighs the expected duration of ventilation against these burdens.
A patient recovering slowly from severe pneumonia has needed the ventilator for ten days, so a percutaneous tracheostomy is performed at the bedside to make weaning more comfortable.
A neck airway is more comfortable and easier to wean from during prolonged ventilation.
Tracheostomy is often considered when ventilation is expected to last beyond about a week or two, but the exact timing is individualised.