Annalisa Frizzelli, Francesco Di Spigno, Luca Moderato, Geza Halasz, Marina Aiello, Panagiota Tzani, Gaia Manari, Luigino Calzetta, Roberta Pisi, Giovanna Pelà, Massimo Piepoli, Alfredo Chetta
Background: Long-term sequelae, called Long-COVID (LC), may occur after SARS-CoV-2 infection, with unexplained dyspnoea as the most common symptom. The breathing pattern (BP) analysis, by means of the ratio of the inspiratory time (TI ) during the tidal volume (VT ) to the total breath duration (TI /TTOT ) and by the VT /TI ratio, could further elucidate the underlying mechanisms of the unexplained dyspnoea in LC patients. Therefore, we analysed TI /TTOT and VT /TI at rest and during maximal exercise in LC patients with unexplained dyspnoea, compared to a control group...
December 13, 2022: Journal of Clinical Medicine