Cited by 65Cardiovascular Syncope and Autonomic DisordersHeart Rate Variability and Autonomic ControlConnective tissue disorders research

Dysautonomia in the Ehlers–Danlos syndromes and hypermobility spectrum disorders—With a focus on the postural tachycardia syndrome

Mathias, Christopher J., Owens, Andrew, Iodice, Valeria, Hakim, Alan·2021·American Journal of Medical Genetics Part C: Seminars in Medical Genetics

Abstract

Dysautonomia (autonomic dysfunction) occurs in the Ehlers–Danlos syndromes (EDS) and hypermobility spectrum disorders (HSD). Symptoms include palpitations, dizziness, presyncope, and syncope, especially when standing upright. Symptoms of orthostatic intolerance are usually relieved by sitting or lying and may be exacerbated by stimuli in daily life that cause vasodilatation, such as food ingestion, exertion, and heat. Neurocardiovascular dysautonomia may result in postural tachycardia syndrome (PoTS), a major cause of orthostatic intolerance. It is defined by a rise in heart rate of >30 beats per minute (bpm) in adults and >40 bpm in teenagers while upright, without a fall in blood pressure (BP; orthostatic hypotension). In some, it can be compounded by the presence of low BP. For many, there is delay in clinicians recognizing the nature of the symptoms, and recognizing EDS or HSD, leading to delays in treatment. The onset of PoTS may be linked to an event such as infection, trauma, surgery, or stress. Gastrointestinal and urinary bladder involvement may occur, along with thermoregulatory dysfunction. In some, the mast cell activation syndrome may be contributary, especially if it causes vasodilatation. This paper reviews neurocardiovascular dysautonomia with an emphasis on PoTS, its characteristics, associations, pathophysiology, investigation, and treatment.

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Crossref · 10.1002/ajmg.c.31951

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Authors
Mathias, C. J., Owens, A., Iodice, V., & Hakim, A.
Affiliations
  • University College London Hospitals NHS Foundation Trust (GB)
  • King's College London (GB)
  • The Wellington Hospital (GB)
Corresponding author
Hakim, Alan
Venue
American Journal of Medical Genetics Part C: Seminars in Medical Genetics
Publisher
Wiley
Published
2021-11-12
Volume
187
Issue
4
Pages
510-519
ISSN
  • 1552-4868 (ISSN-L)
  • 1552-4876
OpenAlex
W3211807389
Cited by
65
References
71
Citations by year
2026: 23 · 2025: 14 · 2024: 16 · 2023: 9 · 2022: 3
FWCI
1.69
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Medical Genetics Part C Seminars in Medical Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Cardiovascular Syncope and Autonomic Disorders
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Connective tissue disorders research
Keywords
autonomic dysfunction, Ehlers-Danlos syndrome, hypermobility spectrum disorders, postural orthostatic tachycardia syndrome, orthostatic intolerance, syncope, mast cell activation syndrome, vasodilation, thermoregulatory dysfunction, gastrointestinal involvement, urinary bladder involvement, pathophysiology, diagnosis, treatment
MeSH terms
Mast Cell Activation Syndrome, Adolescent, Ehlers-Danlos Syndrome, Humans, Primary Dysautonomias, Postural Orthostatic Tachycardia Syndrome

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