The pandemic of coronavirus disease (COVID-19) is widespread, adding more infections to 29.27 million cases worldwide. The majority of these people experience only mild to moderate symptoms, but there is a group of COVID-19 survivors who have never recovered. News feature nature.com Discuss their plight.
Some people, called “long-distance” or “long-term,” report that the symptoms of the disease last for months. These people experience symptoms ranging from fatigue and weakness to chest pain and dyspnea.
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Scientist team University of Southern California, Los Angeles (UCLA) Started follow-up of COVID-19 patients in January using CT scans and examined the lungs. They followed 33 patients for one month.
The results of their study, which has not yet been published, show that more than one-third of patients had tissue death that manifested as scarring in the lungs. Researchers will follow these patients for several years to determine the long-term effects of COVID-19 on the body.
by Ali Goram Reza NezadoIf you are a radiological technologist and a member of the team, most cases are mild to moderate and you will not eventually be admitted to the hospital. He estimates that the rate of mid-term lung injury is less than about 10 percent. However, with 29 million people infected with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), even at a low percentage, thousands are experiencing long-lasting health problems. There is a possibility.
Many doctors are concerned that the number of cases will increase as the number of cases increases, as many people have prolonged symptoms. The disease is novel and no one knows about its long-term effects on the human body. Doctors are worried that organ damage may be permanent or last for months or even years. Also, it is unclear whether it is due to intensive treatment such as intubation or the virus itself. However, as the pandemic progresses, many new studies have shown that the virus attacks many organs, not just the lungs.
Since COVID-19 is primarily a respiratory disease, one of the most affected organs in the body is the lungs. During the first months of the pandemic, many countries squeezed and locked down to contain the virus epidemic. While the focus of hospitals and clinicians was to address the proliferation of cases, research focused on finding causes and treatments for infections.
With the rapid increase in health effects of illness these days, doctors are now looking for answers to why many patients do not fully recover from their illness.
To Another study from Austria, Researchers have found that lung damage decreases over time. Approximately 88 percent of study participants had visible lung damage 6 weeks after discharge. By 12 weeks, that number had dropped to 56%.
In the current UCLA study, a team led by Gholamrezanezhad analyzed lung images from CT scans of more than 900 patients from the published study. They found that the most affected part of the lung was the lower lobe. CT scans are packed with whitish, opaque patches that suggest inflammation, making it difficult for people to breathe during continuous exercise. The team said the injury seemed to improve after two weeks.
In addition, the team pointed out that some symptoms may take some time to subside.
Another study of 152 post-discharge patients published in preprint sources medRxiv* Over 70% of patients admitted with COVID-19 report shortness of breath, and 13.5% require home oxygen after one month of discharge
Meanwhile, the US Centers for Disease Control and Prevention (CDC) has COVID-19. Can cause long-term illness, Even among young people without underlying illness. A study cited by the CDC found that a study of adults with symptoms diagnosed with COVID-19 showed that 35% did not return to normal health when interviewed 2-3 weeks after diagnosis. it was done. One in five young adults without underlying illness did not fully recover.
“These findings have important implications for understanding the full effects of COVID-19 even in mild outpatients,” said the health agency.