A prospective study of 12-week respiratory outcomes in COVID-19-related hospitalisations

The long-term respiratory morbidity of COVID-19 remains unclear. We describe the clinical, radiological and pulmonary function abnormalities that persist in previously hospitalised patients assessed 12 weeks after COVID-19 symptom onset, and identify clinical predictors of respiratory outcomes. At least one pulmonary function variable was abnormal in 58% of patients and 88% had abnormal imaging on chest CT. There was strong association between days on oxygen supplementation during the acute phase of COVID-19 and both DLCO-% (diffusion capacity of the lung for carbon monoxide) predicted and total CT score. These findings highlight the need to develop treatment strategies and the importance of long-term respiratory follow-up after hospitalisation for COVID-19.

Automated summary

The long-term respiratory morbidity of COVID-19 remains unclear. A study found that a significant percentage of previously hospitalized patients had persisting abnormalities in clinical, radiological, and pulmonary function, highlighting the importance of developing treatment strategies and long-term respiratory follow-up.