Reasonable application of the ventilator in compliance with medical advice is usually not harmful, but there may be adverse effects such as decreased lung function, ventilator-dependent symptoms, and accelerated spread of lung infections when it is not applied reasonably.
Long-term overuse of ventilator will cause the lung function to be reduced, during the use of ventilator the lung respiratory expansion ability is reduced, can cause respiratory muscles, diaphragm and chest muscles to varying degrees of atrophy, involuntary contraction or diastole, and in severe cases, can lead to the loss of spontaneous respiration.
Ventilator is an assistive ventilation device, there is a certain discrepancy between the positive airway pressure during inhalation and autonomous breathing of the human body, if prolonged use of the ventilator for respiration, symptoms of ventilator dependence can occur.
For patients with infectious lung diseases, overuse of the ventilator may lead to complications such as accelerated spread of lung infections, and prolonged use of the ventilator may also cause lung infections.
If a ventilator is needed, it should be used under the supervision of a physician, who will evaluate the need for it based on a comprehensive analysis of the specific situation.