Pneumonia that requires a Ventilator

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Discussion Overview

The discussion focuses on the reasons why a ventilator may be required for patients with pneumonia, exploring the relationship between lung function impairment and the use of mechanical ventilation. It includes considerations of underlying conditions and the physiological challenges faced by patients with pneumonia.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions how a ventilator can help when pneumonia fills the alveoli with fluid, suggesting a need for clarification on the mechanism of ventilation in such cases.
  • Another participant cites NIH information, stating that a ventilator is used to relieve the effort of breathing when lung function is impaired, even if the patient can breathe on their own.
  • It is proposed that pneumonia does not completely block every alveolus, but the level of blockage can make breathing too strenuous.
  • There is a suggestion that the ventilator assists by forcing air into the lungs, potentially reducing the effort required from the diaphragm.
  • A later reply emphasizes that severe illnesses can weaken voluntary muscles, making it difficult for patients to breathe adequately, particularly in the context of pneumonia.
  • Concerns are raised about the vulnerability of immunosuppressed, cancer, and elderly patients to pneumonia, indicating that medical teams may be addressing multiple health issues simultaneously.

Areas of Agreement / Disagreement

Participants express varying degrees of understanding regarding the role of ventilators in pneumonia treatment, with some agreeing on the need for mechanical assistance due to impaired breathing effort, while others seek further clarification on the underlying mechanisms. The discussion remains unresolved regarding the specifics of how ventilators assist in these cases.

Contextual Notes

Participants reference NIH guidelines, but there are assumptions about the extent of alveolar blockage and the physiological responses of patients that are not fully explored. The discussion does not resolve the complexities of how ventilators interact with the respiratory mechanics in pneumonia.

lucas_
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Why is ventilator required in some pneumonia? Is it not when the alveoli were filled up with fluid, no air can get in so how can ventilator help?
 
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According to NIH, it's to relieve the effort:
https://www.nhlbi.nih.gov/health-topics/ventilatorventilator-support
For Impaired Lung Function
You may need a ventilator if a disease, condition, or other factor has impaired your breathing. Although you might be able to breathe on your own, it's very hard work. You may feel short of breath and uncomfortable. A ventilator can help ease the work of breathing. People who can't breathe on their own also use ventilators.

Many diseases, conditions, and factors can affect lung function. Examples include:

  • Pneumonia (nu-MO-ne-ah) and other infections
  • COPD (chronic obstructive pulmonary disease) or other lung diseases
  • Upper spinal cord injuries, polio, amyotrophic lateral sclerosis (ALS), myasthenia gravis, and other diseases or factors that affect the nerves and muscles involved in breathing
  • Brain injury or stroke
  • Drug overdose
A ventilator helps you breathe until you recover. If you can't recover enough to breathe on your own, you may need a ventilator for the rest of your life.
So, presumably the pneumonia has not completely blocked every alveoli - but there is so much blockage that breathing is too much of an effort.
 
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.Scott said:
According to NIH, it's to relieve the effort:
https://www.nhlbi.nih.gov/health-topics/ventilatorventilator-support

So, presumably the pneumonia has not completely blocked every alveoli - but there is so much blockage that breathing is too much of an effort.

It helps because the air from the ventilator forces your lungs to inhale and exhale without the effort of the diaphragm? If its only to let air in the remaining alveoli. The patient can just breath more.
 
Yup.
 
.Scott said:
According to NIH, it's to relieve the effort:
https://www.nhlbi.nih.gov/health-topics/ventilatorventilator-support

So, presumably the pneumonia has not completely blocked every alveoli - but there is so much blockage that breathing is too much of an effort.
Yes it is worth mentioning that with severe/ life threatening illness the voluntary muscles are weakened so it is a real effort to make those movements to get enough air.

This is on top of any respiratory infection like pneumonia.

Immunosuppressed/cancer patients/ elderly patients can be susceptible to pneumonia infection so the medical teams are already dealing with more than one issue.
 

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