Long Covid Symptoms: Study Reveals 90% of Patients Improving Over Time

2023-06-05 22:00:00

The vast majority of patients (90%) suffering from long Covid see their symptoms improve slowly after two years, the others experiencing a rapid improvement or, on the contrary, a persistence of their disorders, reports a study published on May 26. . This study was carried out by Dr Viet-Thi Tran, epidemiologist (Paris Cité University / AP-HP), with 2,197 people from the “ComPare” cohort suffering from “Covid long”, followed regularly. His results were published in the International Journal of Infectious Diseases. Fatigue, cough, shortness of breath, intermittent fever, loss of taste or smell, difficulty concentrating, depression… the long Covid is manifested by one or more symptoms from a long list, generally within three months after infection and persisting for at least two months. It is not a single “disease”, but a complex syndrome resulting from multiple often intertwined mechanisms, which explains the complex and often heterogeneous clinical picture of patients, recalls the AP-HP in a press release, quoted by the AFP. According to the study, about 90% of people with “long Covid” still report symptoms a year after their initial infection. The researchers were able to identify three trajectories in the patients. The overwhelming majority (91%) had a slow improvement in their symptoms over time (with an average reduction of around 25% in the number of symptoms reported within two years of onset). Approximately 4% of patients had a rapid improvement in their symptoms (with complete remission of symptoms within two years of onset). Compared to the other patients, these people were younger and had no history of functional disease (chronic fatigue, fibromyalgia, etc.). About 5% of patients had, conversely, significant and persistent symptoms over time. These people were generally older, smokers and had a history of autoimmune disease. They more frequently presented symptoms such as tachycardia, bradycardia, palpitations, arrhythmias, hot flushes, sweating and intolerance to cold and heat during their acute illness. These results will make it possible to better inform patients of the evolution of their “long Covid” and to better estimate the needs of the health system to meet the challenge of this disease, underlines the AP-HP.

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