Clinical profile of 116 patients undergoing post-COVID follow-up - A prospective study

Assessment of lung function variability documents airflow limitation in many patients with long covid

“…Long covid is defined as a condition of persisting symptoms for at least 3 months after infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) [ 2 ]. Even though an infection with SARS-CoV-2 results in mild coronavirus disease 2019 (COVID-19) in approximately 80% of the cases [ 2 ], up to 30% report persistent symptoms regardless of COVID-19 severity [ 3 ]. The most common symptoms reported by 40–70% of patients with LC are fatigue, shortness of breath/dyspnoea and muscle pain/post-exertional malaise, as well as brain fog, headache, memory issues, tachycardia and [ [3] , [4] , [5] , [6] ].…”

“…Even though an infection with SARS-CoV-2 results in mild coronavirus disease 2019 (COVID-19) in approximately 80% of the cases [ 2 ], up to 30% report persistent symptoms regardless of COVID-19 severity [ 3 ]. The most common symptoms reported by 40–70% of patients with LC are fatigue, shortness of breath/dyspnoea and muscle pain/post-exertional malaise, as well as brain fog, headache, memory issues, tachycardia and [ [3] , [4] , [5] , [6] ]. Numerous different mechanisms have been studied to explain LC, varying from psychological to biological mechanisms including clotting/coagulation issues and disrupted brainstem/vagus nerve signaling, among others [ 7 ].…”