This all seems to verify the new theory that CoronaVirus/Covid-19 attacks the blood cells, and THAT is why people infected have a 'hard time' breathing. It's NOT pneumonia or conventional ARDS.
In a letter last week in the American Journal of Respiratory and Critical Care Medicine, researchers in Germany and Italy said their Covid-19 patients were unlike any others with acute respiratory distress. Their lungs are relatively elastic (“compliant”), a sign of health “in sharp contrast to expectations for severe ARDS.” Their low blood oxygen might result from things that ventilators don’t fix. Such patients need “the lowest possible [air pressure] and gentle ventilation,” they said, arguing against increasing the pressure even if blood oxygen levels remain low. “We need to be patient.”
“We need to ask, are we using ventilators in a way that makes sense for other diseases but not for this one?” Gillick said. “Instead of asking how do we ration a scarce resource, we should be asking how do we best treat this disease?”
Researchers and clinicians on the front lines are trying. In a small study last week in Annals of Intensive Care, physicians who treated Covid-19 patients at two hospitals in China found that the majority of patients needed no more than a nasal cannula. Among the 41% who needed more intense breathing support, none was put on a ventilator right away. Instead, they were given noninvasive devices such as BiPAP; their blood oxygen levels “significantly improved” after an hour or two. (Eventually two of seven needed to be intubated.) The researchers concluded that the more comfortable nasal cannula is just as good as BiPAP and that a middle ground is as safe for Covid-19 patients as quicker use of a ventilator.
“Anecdotal experience from Italy [also suggests] that they were able to support a number of folks using these [non-invasive] methods,” Japa said.
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