What Is Mechanical Ventilation, and When Is It Needed?

Question

I recently heard about mechanical ventilation being used for critically ill patients, but I don’t fully understand how it works. Now I’m wondering—what exactly is mechanical ventilation, and when is it needed?

From what I understand, mechanical ventilation helps patients breathe when they are unable to do so on their own, such as in cases of respiratory failure, surgery, or severe lung infections. But how does it work—does it completely replace natural breathing, or does it just assist the lungs?

I also read that mechanical ventilation can be used for both short-term and long-term patients. What are the risks associated with being on a ventilator for too long, and how do doctors decide when it’s time to remove it? Are there any complications like lung infections or muscle weakening from prolonged use?

Since I prefer natural approaches, I looked into Ayurveda’s perspective on lung health and respiratory support. Are there Ayurvedic therapies, breathing techniques, or lifestyle changes that can help strengthen lung function and possibly reduce the need for interventions like mechanical ventilation? I found that Pranayama, Vasaka herb, and steam inhalation are commonly recommended—do these actually help in improving lung capacity and oxygen levels?

For those who have seen a loved one on mechanical ventilation, what was the experience like? How long did they need support, and what helped in the recovery process? I’d love to hear real insights on when mechanical ventilation is necessary and how to improve lung health naturally.

Dr. Harsha Joy · Accepted Answer

Mechanical ventilation is a medical intervention used to assist or replace breathing in critically ill patients who cannot breathe adequately on their own. It works by delivering air or oxygen into the lungs through a tube inserted into the airway, either through the nose or mouth (non-invasive) or through a tracheostomy (invasive). The ventilator can either assist breathing, by supporting the patient’s own efforts, or completely take over the process when the lungs are unable to function. It’s typically used in cases of respiratory failure, severe lung infections, or after major surgery. Prolonged mechanical ventilation can pose risks, such as lung infections (like ventilator-associated pneumonia), muscle weakening, or even lung injury due to pressure from the ventilator. Doctors decide when to remove the ventilator based on the patient's ability to breathe independently, which is assessed through tests and clinical observation. As for natural support, Ayurveda promotes several methods to improve lung health, such as Pranayama (breathing exercises), Vasaka herb (known for its respiratory benefits), and steam inhalation to clear airways and improve oxygen intake. While these practices may enhance lung function and support respiratory health, they cannot replace mechanical ventilation in critical situations. For those with loved ones on ventilators, recovery can be a gradual process, and the focus is often on weaning off the ventilator once the patient’s condition improves.

What Is Mechanical Ventilation, and When Is It Needed? - #15878

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