[Myalgic Encephalitis/Chronic Fatigue Syndrome: Diagnostic and Therapeutic Approach and Biological Research].
Sato, Wakiro · Brain and nerve = Shinkei kenkyu no shinpo · 2023 · DOI
Quick Summary
This article reviews what we currently know about ME/CFS, a serious illness marked by extreme tiredness, sleep problems, difficulty thinking clearly, and difficulty standing up without symptoms getting worse. A key feature is post-exertional malaise—when patients feel much worse after physical or mental activity—which means people with ME/CFS need to carefully manage their activity levels. The article summarizes current approaches to diagnosis and treatment, as well as recent scientific discoveries about what happens in the body during this disease.
Why It Matters
This review is important because it consolidates current understanding of ME/CFS across diagnostic, therapeutic, and biological domains in one accessible reference. For patients, it validates post-exertional malaise as a core feature requiring specific management strategies. For researchers and clinicians, it provides a contemporary synthesis of how biological research may inform clinical practice in an understudied disease.
Observed Findings
ME/CFS is characterized by profound fatigue, sleep disturbance, cognitive impairment, and orthostatic intolerance.
Post-exertional malaise is identified as the most significant clinical feature requiring activity pacing for management.
ME/CFS frequently follows infectious episodes.
Patients experience various types of chronic pain.
Recent biological research provides insights into disease mechanisms.
Inferred Conclusions
Post-exertional malaise is central to ME/CFS pathology and diagnosis, requiring pacing-based management strategies.
A comprehensive approach integrating diagnostic criteria, therapeutic management, and biological research understanding is necessary for optimal patient care.
Biological research is advancing understanding of ME/CFS mechanisms.
Remaining Questions
What specific biological mechanisms underlie post-exertional malaise and how can they be targeted therapeutically?
How should diagnostic criteria be refined to improve early identification and standardize clinical assessment across different healthcare settings?
What This Study Does Not Prove
As a narrative review, this article does not present original research data or establish causation for any biological mechanisms in ME/CFS. It does not prove the efficacy of any particular treatment—it summarizes existing approaches without meta-analysis or controlled comparison. The article's conclusions reflect the author's interpretation of the literature and may not represent consensus across all ME/CFS research.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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