- Last Updated: 30 August 2017 30 August 2017
Pediatric case definition/diagnostic criteria for ME/CFS
Pediatric Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is diagnosed when symptoms have persisted for more than three months and cannot be explained by any other disease or psychological disorder. ME/CFS symptoms fall into five categories:
- Persistent fatigue, and especially post-exertional malaise or post-exertional fatigue in which even mild activity can cause a rapid loss of physical and mental stamina and an increase in other symptoms. Recovery is slow, taking days to weeks.
- Unrefreshing sleep, disturbed sleep, or day/night reversal.
- Pain in muscles, joints, head or stomach.
- Neurocognitive issues, such as impaired memory, difficulty focusing, “brain fog,” or new trouble with educational subjects.
- At least one symptom from two of the following three categories:
- Autonomic, e.g., dizziness, neurally mediated hypotension (NMH), postural orthostatic tachycardia (POTS).
- Neuroendocrine, e.g., feeling feverish, cold extremities, intolerance of extremes of heat and cold.
- Immune, e.g., recurrent flu-like symptoms, new sensitivities to food, odors or chemicals.
Children are more likely than adults to suffer from dizziness, abdominal pain, rashes, fevers and chills. These symptoms are described in more detail in the pediatric case definition developed in 2006 by the International Association for CFS 1, 2, and in Chronic Fatigue Syndrome/Myalgic Encephalomyelitis: A Primer for Clinical Practitioners. Table 1 from the 2006 definition 1 and the Pediatric Case Definition Worksheet from the Primer provide succinct summaries to share with medical providers.
In February 2015, the Institute of Medicine (IOM) of the National Academies proposed a new name, Systemic Exertional Intolerance Disease (SEID), and streamlined diagnostic criteria for ME/CFS. The IOM Report Guide for Clinicians has a clear description of the real, physical nature of the illness. These recommendations have not yet been adopted by federal agencies.
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