Long-Term Consequences of COVID-19: A 1-Year Analysis

Area of Science:

• Infectious Diseases
• Neurology
• Cardiology

Background:

• Long-lasting symptoms after SARS-CoV-2 infection, known as Long COVID, are a significant public health concern.
• Previous studies have described a wide range of persistent symptoms following COVID-19.

Purpose of the Study:

• To prospectively investigate the health complaints of patients 1 year after COVID-19 diagnosis.
• To identify risk factors and patient phenotypes associated with the development of Long COVID.

Main Methods:

• A prospective, longitudinal, observational study involving 474 patients (ambulatory and hospitalized) 1 year post-COVID-19 diagnosis.
• Utilized a self-reported health survey to assess cardiopulmonary, vascular, neurological, and psychological complaints.
• Employed cluster analysis to identify patient phenotypes and statistical analysis to determine associated risk factors.

Main Results:

• Fatigue (87.5%), feeling slowed down (71.5%), headache (68.5%), and smell disturbance (60.7%) were the most frequent neurological complaints.
• Prior thromboembolism significantly increased the risk of recurrence post-SARS-CoV-2 infection.
• Patients scored higher on anxiety, depression, fatigue, and sleep disturbance measures compared to the healthy population, with two distinct Long COVID phenotypes identified.

Conclusions:

• This study confirms the multi-systemic nature of Long COVID symptoms.
• Early identification of risk factors, including baseline comorbidities and acute infection characteristics, is crucial for improved patient follow-up.
• Challenges remain in developing a systematic approach due to the low specificity of identified risk factors.