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European Respiratory Journal ; 58:2, 2021.
Article in English | Web of Science | ID: covidwho-1708377
European Respiratory Journal ; 58:2, 2021.
Article in English | Web of Science | ID: covidwho-1706602
European Respiratory Journal ; 57(4), 2021.
Article in English | MEDLINE | ID: covidwho-1209858


BACKGROUND: The infectious coronavirus disease 2019 (COVID-19) pandemic is an ongoing global healthcare challenge. Up to one-third of hospitalised patients develop severe pulmonary complications and acute respiratory distress syndrome. Pulmonary outcomes following COVID-19 are unknown. METHODS: The Swiss COVID-19 lung study is a multicentre prospective cohort investigating pulmonary sequelae of COVID-19. We report on initial follow-up 4 months after mild/moderate or severe/critical COVID-19 according to the World Health Organization severity classification. RESULTS: 113 COVID-19 survivors were included (mild/moderate n=47, severe/critical n=66). We confirmed several comorbidities as risk factors for severe/critical disease. Severe/critical disease was associated with impaired pulmonary function, i.e. diffusing capacity of the lung for carbon monoxide (D <sub>LCO</sub>) % predicted, reduced 6-min walk distance (6MWD) and exercise-induced oxygen desaturation. After adjustment for potential confounding by age, sex and body mass index (BMI), patients after severe/critical COVID-19 had a D <sub>LCO</sub> 20.9% pred (95% CI 12.4-29.4% pred, p=0.01) lower at follow-up. D <sub>LCO</sub> % pred was the strongest independent factor associated with previous severe/critical disease when age, sex, BMI, 6MWD and minimal peripheral oxygen saturation at exercise were included in the multivariable model (adjusted odds ratio per 10% predicted 0.59, 95% CI 0. 37-0.87;p=0.01). Mosaic hypoattenuation on chest computed tomography at follow-up was significantly associated with previous severe/critical COVID-19 including adjustment for age and sex (adjusted OR 11.7, 95% CI 1.7-239;p=0.03). CONCLUSIONS: 4 months after severe acute respiratory syndrome coronavirus 2 infection, severe/critical COVID-19 was associated with significant functional and radiological abnormalities, potentially due to small-airway and lung parenchymal disease. A systematic follow-up for survivors needs to be evaluated to optimise care for patients recovering from COVID-19.

Revue Medicale Suisse ; 17(736):842-849, 2021.
Article in French | MEDLINE | ID: covidwho-1204500


Somatic or psychological sequelae after a SARS-CoV-2 infection are common. Specific organ damage should be investigated to explain persistent symptomatology and propose a treatment. A specialized consultation for the follow-up of patients after a SARS-CoV-2 infection is useful to clinically assess the patient, organized further investigations, offer treatment options and refer the patient to other specialists or to a rehabilitation program. Such a consultation is also intended to reduce the public health burden of long Covid and to collect data that can improve our management in the future.