Idiopathic chronic fatigue

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Source: Chronic fatigue syndrome: A review (Balachander et al.) 2014.[1]

Idopathic chronic fatigue or ICF is long lasting chronic fatigue that is not caused by an underlying medical condition or psychiatric illness.[2] Patients with idopathic chronic fatigue do not fulfill the criteria for chronic fatigue syndrome (CFS).[3] The word idiopathic reflects an unknown underlying cause, meaning that the chronic fatigue is a medically unexplained symptom.[2][4]

Differences from chronic fatigue syndrome[edit | edit source]

Chronic Fatigue Syndrome (CFS) is a distinct neurological disease, and is not the same as chronic fatigue, or long-term fatigue with no known cause (ICF).[3] Source: Son, C-G (2019). Differential diagnosis between “chronic fatigue” and “chronic fatigue syndrome”. Integrative Medicine Research, 8(2), 89-91. Suggested algorithm for chronic fatigue, ICF and CFS. License: CC-BY-ND-NC.
  • Idiopathic chronic fatigue is not a distinct illness or disease
  • Idiopathic chronic fatigue only requires the symptom of chronic fatigue[3]
  • Idiopathic chronic fatigue is more common in the elderly and becomes more common with ageing[2]
  • Chronic fatigue syndrome is a neurological disease
  • Chronic fatigue syndrome has a multi-systemic illness with a wide variety of symptoms, which may include immune symptoms, cardiovascular symptoms, post-exertional malaise, headaches or migraines, and chronic pain.[3][5]
  • Chronic fatigue syndrome is most common in teenagers and working age adults
  • Idiopathic chronic fatigue is generally considered less disabling[2]

Notable studies[edit | edit source]

  • 2016, Metabolic Rate and Perceived Exertion of Walking in Older Adults With Idiopathic Chronic Fatigue[2] (Full text)
  • 2019, Differential diagnosis between “chronic fatigue” and “chronic fatigue syndrome”[3] (Full source)

See also[edit | edit source]

Learn more[edit | edit source]

References[edit | edit source]

  1. 1.0 1.1 Singh, Shubh Mohan; Sarkar, Siddharth; Rao, Pradyumna; Balachander, Srinivas (Jul 1, 2014). "Chronic fatigue syndrome: A review". Medical Journal of Dr. D.Y. Patil University. 7 (4): 415. doi:10.4103/0975-2870.135252. ISSN 0975-2870. 
  2. 2.0 2.1 2.2 2.3 2.4 Manini, Todd M.; Knaggs, Jeffrey D.; Corbett, Duane B.; Valiani, Vincenzo (Nov 1, 2016). "Metabolic Rate and Perceived Exertion of Walking in Older Adults With Idiopathic Chronic Fatigue". The Journals of Gerontology: Series A. 71 (11): 1444–1450. doi:10.1093/gerona/glw108. ISSN 1079-5006. 
  3. 3.0 3.1 3.2 3.3 3.4 Son, Chang-Gue (Jun 2019). "Differential diagnosis between "chronic fatigue" and "chronic fatigue syndrome"". Integrative medicine research. 8 (2): 89–91. doi:10.1016/j.imr.2019.04.005. ISSN 2213-4220. PMID 31193269. 
  4. 4.0 4.1 Sigurdsson MD, Alex F. (Nov 8, 2017). "19 Important Causes of Fatigue - Tiredness and Chronic Fatigue Explained". Retrieved Jan 30, 2019. 
  5. Fukuda, K.; Straus, S. E.; Hickie, I.; Sharpe, M. C.; Dobbins, J. G.; Komaroff, A. (Dec 15, 1994). "The chronic fatigue syndrome: a comprehensive approach to its definition and study. International Chronic Fatigue Syndrome Study Group" (PDF). Annals of Internal Medicine. American College of Physicians. 121 (12): 953–959. ISSN 0003-4819. PMID 7978722. 

The information provided at this site is not intended to diagnose or treat any illness.

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