The physiological derangements in subjects suffering from long-term symptoms following a Covid-19 infection (Post-COVID-19 Syndrome) are poorly understood and evaluated. This study will recruit subjects with a clinical diagnosis of Post-Covid-19-syndrome) who are scheduled for either of lung function testing, cardiopulmonary exercise testing or cardiac ultrasound. Patients' symptoms will be correlated to physiological measures and compared to predicted values. In addition, in 20 patients, symptoms and physiological measures will be correlated to epigenetical alterations, or DNA-methylation patterns. In addition, a subset of patients will be examined a year after the baseline testing in order to follow the progress of the disease.
The physiological derangements in subjects suffering from long-term symptoms following a Covid-19 infection (Post-COVID-19 Syndrome) are poorly understood and evaluated. For example, the extent to which subjective symptoms correlate with physiological impairments are not known. This study will recruit subjects with a clinical diagnosis of Post-Covid-19-syndrome) who are scheduled for either of lung function testing, cardiopulmonary exercise testing or cardiac ultrasound. Patients' symptoms will be correlated to physiological measures and compared to predicted values. In addition, in 20 patients, symptoms and physiological measures will be correlated to epigenetical alterations, or DNA-methylation patterns. In addition, a subset of patients will be examined a year after the baseline testing in order to follow the progress of the disease.
Study Type
OBSERVATIONAL
Enrollment
150
Cardiopulmonary exercise testing, Lung Function Testing and in some cases echocardiography. 20 subjects will perform DNA-methylation testing.
Dept Health, Medicine and Caring Sciences
Linköping, Östergötland County, Sweden
RECRUITINGPeak Oxygen Consumption (VO2peak)
Cross-sectional evaluation of VO2peak and the association with symptoms
Time frame: At baseline
Peak Oxygen Consumption (VO2peak)
Improvement in VO2peak over 1 year
Time frame: In subset of subjects at 1 year
VE/VCO2-slope
Cross-sectional evaluation of VE/VCO2 and the association with symptoms
Time frame: At baseline, in subset at 1 year
Diffusion Capacity (DLCOc)
Cross-sectional evaluation of DLCOc and the association with symptoms
Time frame: At baseline, in subset at 1 year
Forced Expiratory Volume in 1 second (FEV1)
Cross-sectional evaluation of FEV1 and the association with symptoms
Time frame: At baseline, in subset at 1 year
Forced Vital Capacity (FVC)
Cross-sectional evaluation of FVC and the association with symptoms
Time frame: At baseline, in subset at 1 year
Total Lung Capacity (TLC)
Cross-sectional evaluation of TLC and the association with symptoms
Time frame: At baseline, in subset at 1 year
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