According tomedia BGR reported that the new coronavirus pandemic has caused thousands of lives lost, when it comes to the most serious symptoms of COVID-19, it may be the effect of the virus on the lungs. It is known that the virus in the most severe cases can cause pneumonia, affected patients often need to assist breathing. However, as WebMD reports, lung scans in some new crown patients have confused doctors.
When a suspected patient with new coronary pneumonia is admitted to hospital, the doctor will have a blood test and, in quite a few cases, notic low oxygen levels. In this case, doctors will find a blockage or damage to the lungs or difficulty breathing, but some patients appear to be breathing well, and X-rays show that the lungs look relatively healthy.
“A whole bunch of these patients are really low-oxygen, but their lungs don’t look that bad. Dr. Todd Bull, director of the Lung and Respiratory Center at the University of Colorado School of Medicine, explains.
In patients with pneumonia, where medical scans are presented as cloudy areas of the lungs, lung tissue is stimulated and swollen, and these patients often need ventilation to ensure adequate oxygen in their system. However, those with low levels of oxygen in the blood, but clear lung scans, may be completely different viruses.
Dr Luciano Gattinoni of the University of G?ttingen in Germany believes that the damage caused by the virus in these cases is limited to blood vessels in the lungs. As Dr. Gattinoni explains in a recent editorial in the journal Critical Medicine, when the lungs are damaged, the blood vessels in these areas clog up, so that healthy areas of the lungs can receive most of the blood flow and maintain oxygen levels in the blood.
Dr. Gattinoni believes that in patients with the new coronavirus, the blood vessels in the damaged part of the lungs are not as clogged as normal. Instead, they continue to push blood through areas of the lungs that are not functioning properly. During the scan, the lungs appeared to work well, but the blood flowing through the damaged area did not really get oxygen, and the patient began to show low oxygen levels.