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Most COVID patients who end up on ventilators go on to die
- This is according to several small studies from the U.S., China and Europe.
- And many of the patients who continue to live can't be taken off the ventilators.
- "It's very concerning to see how many patients who require ventilation do not make it out of the hospital" Dr. Tiffany Osborn,critical care specialist caring for Covid patients, Barnes-Jewish Hospital.
- "We have had several patients between the hospitals across the Northwell system that have come off the breathing machine," But the vast majority are unable to." Negin Hajizadeh, pulmonary critical care doctor,Long Island,N.Y.
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Studies on mortality among Covid Patients on ventilators
- Among 98 ventilated patients in the U.K., just 33 were discharged alive - a study done by the Intensive Care National Audit & Research Centre, London, the largest study so far to look at mortality among coronavirus patients on ventilators.
- Only 3 of 22 ventilated patients survived - a study of Wuhan, China
- Out of 18 ventilated patients, nine were still alive when the study ended, but only six had recovered enough to breathe on their own - a study in Washington state
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How does a ventilator work?
"We give sedation so the person goes to sleep. Then we provide a paralytic that stops their breathing," she says.
Next, a long plastic tube is inserted through the trachea and vocal cords. That allows a machine to deliver small puffs of highly oxygenated air to the lungs.
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Why the need for ventilators?
Because lungs are the main battleground in COVID-19 infections, which can cripple breathing functions it may lead to hypoxemia (the body becomes deprived of oxygen).
A patient needs a ventilator when the lungs can no longer deliver enough oxygen to keep the body going. It can either partially or fully take over the breathing process for the patient
A ventilator:
- provides air with an elevated oxygen content
- creates pressure in the lungs to assist with breathing
- help clear away carbon dioxide (harmful and rebalance the blood’s pH levels.
- Doesn't treat the disease; gives patients time to fight it
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