[Fibromyalgia in the new era of SARS-CoV-2 infection and post-COVID-19 syndrome: A scoping review].

INTRODUCTION

Fibromyalgia is a syndrome characterized by chronic generalized pain, joint stiffness, sleep disorders, fatigue, anxiety and depressive episodes, whose clinical manifestations begin after a physical or emotional trauma. However, few publications describe the clinical impact of COVID-19 on fibromyalgia symptoms.

OBJECTIVE

To map the available medical evidence on the impact of COVID-19 and PCS in patients with and without a diagnosis of fibromyalgia prior to infection.

MATERIALS AND METHODS

Exploratory systematic review in PubMed and Scopus, considering articles in English and Spanish, with data on fibromyalgia in the population surviving SARS-CoV-2 infection. The clinical trial records of the World Health Organization databases were reviewed.

RESULTS

Twelve published articles were included: retrospective studies (n = 4), cross-sectional (n = 2), cases and controls (n = 2), qualitative studies (n = 2), a prospective cohort (n = 1) and a longitudinal section study (n = 1). The total study population of the included publications was 3,060 patients. In addition, one randomized controlled clinical trial and two observational cross-sectional and case-control studies were included. The total sum of the study population was 173 participants.

CONCLUSION

Survivors of COVID-19 with or without a previous diagnosis of fibromyalgia may present an increase in chronic pain, insomnia, joint stiffness, and deterioration in quality of life. The population with a history of fibromyalgia may be more affected by psychological stress, tissue damage to neuromuscular structures, and inflammation due to SARS-CoV-2 infection.