Lata Mangeshkar, the legendary singer aged 92, was admitted to the ICU on 8 January after testing positive for COVID-19 and developing mild symptoms. Her family later issued a statement informing fans that she had been placed on a “trial of extubation” and was showing signs of improvement, though she remained under close observation in the ICU.
This raises the question—what exactly is extubation and how does it relate to COVID-19 care? In this article, we explain the procedure and its significance in detail.
What is Extubation?Extubation is a medical procedure in which doctors remove the endotracheal tube (ETT) that has been inserted to help a patient breathe. It is typically the final step in taking a patient off mechanical ventilator support.
In simple terms, extubation means discontinuing artificial breathing assistance so the patient can gradually resume normal, natural breathing. Before full removal, a “trial of extubation” is often conducted to check whether the patient can breathe independently. If the patient responds well, the tube is removed; if not, ventilator support may be resumed.
The endotracheal tube is a flexible PVC tube that delivers oxygen directly to the lungs and also prevents fluids like blood or gastric contents from entering the airways.
Extubation is performed by trained healthcare professionals, including doctors, nurses, and respiratory therapists, who ensure the patient is stable before and after the procedure, especially during weaning and spontaneous breathing trials.
What Do ‘Weaning’ and ‘Liberation’ Mean?Weaning refers to the gradual reduction of ventilator support to test whether a patient can breathe effectively with less assistance. It helps doctors determine readiness for natural breathing.
Liberation is the complete removal of mechanical ventilation when the patient is stable and capable of maintaining normal breathing on their own. This step is taken only after successful weaning.
Although mechanical ventilation can be life-saving, prolonged use may increase the risk of complications such as ventilator-associated pneumonia. Therefore, once a patient shows improvement, doctors carefully evaluate whether to proceed with liberation.
What is Mechanical Ventilation?Mechanical ventilation is a life-support system used for critically ill patients who cannot breathe adequately on their own due to illness, surgery, or respiratory failure. It works by delivering oxygen through a tube inserted into the windpipe via the mouth or nose.
Different ventilation modes are used depending on the patient’s condition, and continuous monitoring is essential due to possible complications, including changes in blood pressure or oxygen levels.
How is Extubation Performed?Once a patient successfully passes a weaning trial—showing stable oxygen levels, improved condition, and reduced breathing effort—doctors may decide to proceed with extubation.
In many cases, sedation or mild anesthesia is used to ensure comfort during the procedure. The medical team then removes securing tapes, clears secretions from the airway using suction, and may ask the patient to cough to help clear any remaining debris.
After removal of the tube, the patient’s breathing, oxygen saturation, and overall stability are closely monitored. If breathing becomes difficult again, reintubation may be required.
Benefits of ExtubationExtubation offers several benefits, including:
Helps restore natural breathing
Reduces risk of ventilator-related infections like pneumonia
Improves patient comfort
Supports lung recovery
Enhances oxygen delivery efficiency
Helps improve heart and overall organ function
Clears and restores normal airway function
Risks of Extubation
In some cases, extubation may fail, requiring reinsertion of the breathing tube within 24–72 hours. This is known as extubation failure and can occur if the patient cannot maintain proper breathing or oxygen levels.
Possible risks include:Low oxygen levels (hypoxemia)
Pulmonary aspiration
Irregular heartbeat
Cardiac arrest
Vocal cord injury
Ventilator-associated infections
Brain injury due to oxygen shortage
In severe cases, death