The persistence of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) after SARS-CoV-2 infection: A systematic review and meta-analysis

Oct 1, 2024The Journal of infection

Continued Chronic Fatigue Syndrome Symptoms After COVID-19 Infection: A Review and Analysis

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Abstract

51% of 1,973 long COVID-19 patients studied met the diagnostic criteria for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).

Fatigue, sleep disruption, and muscle/joint pain were the most common symptoms among long COVID-19 patients.
The hallmark symptom of post-exertional malaise was also reported in long COVID-19 patients.
Approximately half of long COVID-19 patients exhibited symptom clusters similar to those of ME/CFS.
Current ME/CFS diagnostic criteria may be applicable for identifying a subset of long COVID-19 patients.

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OBJECTIVES: Long COVID-19 (LC) patients experience a number of chronic idiopathic symptoms that are highly similar to those of post-viral myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). We have therefore performed a systematic review and meta-analysis to determine the proportion of LC patients that satisfy ME/CFS diagnostic criteria.

METHODS: Clinical studies published between January 2020 and May 2023 were identified using the PubMed, Web of Science, Embase and CINAHL databases. Publication inclusion/exclusion criteria were formulated using the global CoCoPop framework. Data were pooled using a random-effects model with a restricted maximum-likelihood estimator. Study quality was assessed using the Joanna Briggs Institute critical assessment tool.

RESULTS: We identified 13 eligible studies that reported a total of 1973 LC patients. Our meta-analysis indicated that 51% (95% CI, 42%-60%) of LC patients satisfied ME/CFS diagnostic criteria, with fatigue, sleep disruption, and muscle/joint pain being the most common symptoms. Importantly, LC patients also experienced the ME/CFS hallmark symptom, post-exertional malaise.

CONCLUSIONS: Our study not only demonstrates that LC patients exhibit similar symptom clusters to ME/CFS, but that approximately half of LC patients satisfy a diagnosis of ME/CFS. Our findings suggest that current ME/CFS criteria could be adapted to the identification of a subset of LC patients that may facilitate the standardised diagnosis, management and the recruitment for clinical studies in the future.

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The persistence of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) after SARS-CoV-2 infection: A systematic review and meta-analysis

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