Research at Radboudumc (2022) shows that many patients have disturbed breathing after a corona infection. The 21 patients studied had had only a mild form of COVID-19 and were able to get better at home. Nevertheless, they got serious and long-term problems.
While lung function, blood tests and condition appeared to be normal, the researchers saw abnormal breathing in almost all patients during a bicycle test. They were constantly looking for how to breathe while cycling. Talking also caused problems with breathing. Many patients breathed too fast or too deeply, causing problems such as fatigue, shortness of breath, etc.
The researchers note that the abnormal breathing and consequences resemble chronic hyperventilation syndrome. They recommend targeted breathing therapy.