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✦ The Dispatch

Orthostatic intolerance with small heart and/or disequilibrium in patients with myalgic encephalomyelitis/chronic fatigue syndrome: clinical update and paradigm shift

A dispatch from PubMed — filed

Orthostatic intolerance (OI) is characterized by the inability to maintain an upright posture without experiencing severe signs and symptoms, including hypotension, palpitations, light-headedness, pallor, fatigue, weakness, dizziness, impaired concentration, tremulousness, and nausea....

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✦ The floor

Discussion

Signed responses from readers of the wire.

Clinical Takeaway

No actionable change for most audiology practices; this paradigm-shift proposal regarding ME/CFS-related disequilibrium is preliminary and directed primarily at internal medicine and autonomic disorder specialists.

Why It Matters

Disequilibrium and dizziness are symptoms that bring ME/CFS patients into vestibular clinics, and evolving diagnostic frameworks may influence referral patterns and interdisciplinary care.

Key Points
  1. 01Orthostatic intolerance in ME/CFS can present with disequilibrium, overlapping with vestibular complaints.
  2. 02Authors propose a paradigm shift in classifying and understanding ME/CFS subtypes involving small heart and/or disequilibrium.
  3. 03Content is a clinical update/opinion piece, not an original research study.
  4. 04Relevance to audiology is indirect, primarily through vestibular symptom overlap.
  5. 05No validated diagnostic or treatment protocol is established by this article.
Claims & Evidence

Disequilibrium is a distinct and underrecognized symptom cluster within ME/CFS orthostatic intolerance.

opinionunclear

A paradigm shift in understanding ME/CFS with small heart and/or disequilibrium is warranted.

opinionunclear
Research metadata
PMID
42591853
DOI
10.3389/fmed.2026.1744154.
Journal
Frontiers in Medicine
Publication type
editorial
Evidence level
5
Population
Patients with myalgic encephalomyelitis/chronic fatigue syndrome and orthostatic intolerance
Intervention
Conceptual reclassification of orthostatic intolerance subtypes in ME/CFS

Primary outcomes

Proposed paradigm shift in ME/CFS diagnostic classification including disequilibrium

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