Low measures of forced vital capacity (FVC), or the greatest volume of air that can be forcibly exhaled, was identified in 14.3% of the entire group at 2 months, 9.3% at 6 months, and 6.7% at 12 months. Lung diffusion is the ability to pass oxygen into blood from the lungs and pass carbon dioxide from the blood back into the lungs. Lung diffusion, however, was significantly different between severity groups only at 2 months. The patients were classified into one of three groups: mild (requiring supplemental oxygen through a mask or nasal prongs), severe (requiring noninvasive mechanical ventilation or a high-flow nasal oxygen cannula), or critical (requiring invasive mechanical ventilation).Īt 2 months, 53.8% of all patients had impaired lung diffusion, falling to 46.8% at 6 months and 39.8% at 12 months. A total of 377 patients completed 2-month follow-up, but pandemic restrictions shrunk the pool to 312 patients at 6 months and 284 at 12 months. The findings were published yesterday in Respiratory Research.Īverage age was 60.5 years, and 55.3% were men. Spain: 23% had abnormal 12-month CT scansĪs part of a study of adult patients admitted to 12 hospitals in Spain with bilateral COVID-19 pneumonia, researchers analyzed lung function and chest computed tomography (CT) findings 2, 5, and 12 months after hospital release, which was from May 1 to Jul 31, 2020. A pair of new studies describe long-COVID findings, one from Spain showing that nearly 40% of bilateral pneumonia patients had impaired lung diffusion 1 year after hospitalization, and the other from England demonstrating that double-vaccinated adults were 41% less likely than their unvaccinated peers to report symptoms 3 months or more after infection.
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