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PubMed This is a summary of 11 peer-reviewed journal articles Updated
Cardiology · Hypermobile Ehlers-Danlos Syndrome and Hypermobility Spectrum Disorder

Staying Vigilant: Monitoring and Emergency Signs

At a Glance

People with hEDS or HSD generally follow symptom-based monitoring, with repeat heart ultrasounds considered when the aorta is widened or new concerns arise. Any sudden severe pain, neurological change, thunderclap headache, fainting, or severe shortness of breath requires emergency evaluation.

Living with a chronic condition like hEDS or HSD means becoming an expert in your own body’s “normal.” While most of your daily symptoms—like joint aches or occasional dizziness—are manageable parts of your baseline, it is important to know when a symptom is no longer “just hypermobility” and requires immediate medical attention.

The goal of long-term monitoring is to ensure your heart and nervous systems are functioning well and to catch rare but serious complications early.

Routine Monitoring: The Heart and Autonomic System

Current research suggests that for most people with hEDS/HSD, “universal” or aggressive heart imaging is not always necessary if your initial tests were normal [1][2]. Instead, monitoring is usually symptom-driven.

  • Cardiovascular Surveillance: If your baseline echocardiogram (heart ultrasound) showed any aortic dilation (a slight widening of the main artery), your doctor will recommend ongoing surveillance to monitor for changes [3]. If your initial heart tests were normal and you have no family history of heart issues, routine repeat scans are often not required [2][4].
  • Autonomic Tracking: Because POTS and other forms of dysautonomia can fluctuate, your doctor may monitor your “orthostatic” vitals—how your heart rate and blood pressure change when you stand up [5]. Tools like the COMPASS-31 questionnaire or even wearable heart-rate monitors can help you and your doctor track your symptom burden and how it impacts your quality of life, though they support rather than replace clinical assessment [6][7].

Rare but Serious Secondary Complications

While rare, certain complications can occur because of tissue fragility. Knowing the signs of these issues allows you to act quickly without living in constant fear.

Vascular Issues

Arterial fragility is principally associated with vascular EDS and certain other heritable aortopathies. While there are rare reports of arterial dissections (tears in the lining of a blood vessel) or aneurysms in hEDS/HSD, this does not support routine vascular screening for everyone [3][8]. These are not “routine” hypermobility pains; they are sudden and severe.

  • Red Flags: Sudden, “tearing” or “ripping” pain in the chest, back, neck, or abdomen [3].

Craniocervical and Spinal Issues

The relationship to hEDS/HSD and the diagnostic criteria for Craniocervical Instability (CCI) and Spinal CSF Leaks remain contested [9][10].

  • Red Flags: A new headache that is “positional”—meaning it feels much worse when you are upright and is significantly relieved when you lie flat—merits prompt clinical evaluation [9]. Do not assume that routine symptoms like severe “brain fog” or a heavy head automatically point to these conditions.

When to Seek Emergency Care

It can be difficult to tell the difference between a “bad flare” and an emergency. As a general rule, if a symptom is new, sudden, and severe, it should be evaluated immediately. Do not assume you need a specialized hospital or imaging solely because of hEDS/HSD.

Seek emergency care (by calling your local emergency number or going to the nearest ER) if you experience:

  1. A “Thunderclap” Headache: A sudden, excruciating headache that reaches maximum intensity in seconds, unlike any migraine you have had before [10].
  2. Neurological Changes: New weakness or numbness (especially on one side), facial drooping, difficulty speaking, or sudden loss of consciousness [11].
  3. Acute Chest or Abdominal Pain: Intense, sharp, or “tearing” pain that does not change with movement or position [3].
  4. Collapse or Fainting: Any loss of consciousness, especially if it occurs without the usual “warning signs” of your POTS or dizziness [5].
  5. Severe Shortness of Breath: New or worsening difficulty breathing that is not related to a known activity or anxiety.

If you go to the ER, be prepared to clearly state: “I have a connective tissue disorder (hEDS/HSD) and I am experiencing [Symptom], which is completely different from my usual baseline pain.” This helps the medical team look beyond your chronic diagnosis to find the acute cause.

Common questions in this guide

Do people with hEDS or HSD need regular echocardiograms?
Not everyone needs routine repeat heart ultrasounds. If the first echocardiogram is normal and there is no relevant family history, a clinician may not recommend regular scans; aortic dilation, new symptoms, or family history can change the monitoring plan.
How can I track POTS or dysautonomia symptoms at home?
You can record your heart rate and blood pressure when lying down and after standing, along with dizziness, fainting, and other symptoms. A symptom questionnaire such as COMPASS-31 or a wearable heart-rate monitor may help show patterns, but these tools support rather than replace a clinician’s assessment.
When is a headache an emergency for someone with hEDS or HSD?
A headache that reaches maximum intensity within seconds, especially if it is unlike previous headaches, requires emergency evaluation. A new headache that is much worse when upright and improves when lying flat should receive prompt medical assessment, even though it does not by itself prove a spinal fluid leak or craniocervical instability.
Which sudden symptoms should lead me to seek emergency care?
Seek emergency care for new one-sided weakness or numbness, facial drooping, trouble speaking, loss of consciousness, severe shortness of breath, or intense chest, back, neck, or abdominal pain that feels sharp or tearing. A sudden thunderclap headache also needs immediate evaluation.
How can I explain my usual symptoms versus a possible emergency?
Know what your typical flare feels like and keep baseline heart-rate and blood-pressure information available. If a symptom is new, sudden, severe, or clearly different from your usual pain, tell emergency clinicians that you have hEDS or HSD and describe exactly what changed.

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Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Based on my initial evaluation, do I have any aortic dilation or heart valve issues that require periodic echocardiograms?
  2. 2.If my baseline heart imaging was normal, under what specific circumstances (new symptoms or family history) would you recommend we repeat those tests?
  3. 3.How can we use my 'baseline' heart rate and blood pressure readings to help emergency doctors understand what is 'normal' for me versus a crisis?
  4. 4.What specific symptoms should I watch for that would point to craniocervical instability (CCI) rather than my usual neck pain or migraines?
  5. 5.If I experience a sudden, severe headache that is positional (relieved by lying down), who should I contact first to rule out a spinal CSF leak?

References

References (11)
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    Cardiac involvement in classical or hypermobile Ehlers-Danlos syndrome is uncommon.

    Paige SL, Lechich KM, Tierney ESS, Collins RT

    Genetics in medicine : official journal of the American College of Medical Genetics 2020; (22(10)):1583-1588 doi:10.1038/s41436-020-0856-8.

    PMID: 32518415
  2. 2

    Longitudinal echocardiography in pediatric patients with hypermobile Ehlers-Danlos syndrome.

    Lahey H, Shin H, Myers K, McBride KL

    American journal of medical genetics. Part A 2024; (194(12)):e63844 doi:10.1002/ajmg.a.63844.

    PMID: 39148461
  3. 3

    Cardiovascular manifestations of hypermobile Ehlers-Danlos syndrome and hypermobility spectrum disorders.

    Rashed ER, Ruiz Maya T, Black J, et al.

    Vascular medicine (London, England) 2022; (27(3)):283-289 doi:10.1177/1358863X211067566.

    PMID: 35000503
  4. 4

    Natural history of aortic root dilation through young adulthood in a hypermobile Ehlers-Danlos syndrome cohort.

    Ritter A, Atzinger C, Hays B, et al.

    American journal of medical genetics. Part A 2017; (173(6)):1467-1472 doi:10.1002/ajmg.a.38243.

    PMID: 28436618
  5. 5

    AGA Clinical Practice Update on GI Manifestations and Autonomic or Immune Dysfunction in Hypermobile Ehlers-Danlos Syndrome: Expert Review.

    Aziz Q, Harris LA, Goodman BP, et al.

    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2025; (23(8)):1291-1302 doi:10.1016/j.cgh.2025.02.015.

    PMID: 40387691
  6. 6

    Cardiovascular Symptoms, Dysautonomia, and Quality of Life in Adult and Pediatric Patients with Hypermobile Ehlers-Danlos Syndrome: A Brief Review.

    Hertel A, Black WR, Walton LM, et al.

    Current cardiology reviews 2024; (20(1)):e240124226070 doi:10.2174/011573403X271096231203164216.

    PMID: 38275067
  7. 7

    Multimodal Wearable and Survey Data Reveal Distinct Physiologic Profiles in Hypermobile-Ehlers Danlos Syndrome for Screening Advancements.

    Wilson D, Shilling M, Nowak T, et al.

    medRxiv : the preprint server for health sciences 2026; doi:10.64898/2026.04.01.26349981.

    PMID: 41959756
  8. 8

    Prevalence of Intracranial and Cervical Artery Abnormalities in Patients with Hypermobile Ehlers-Danlos Syndrome and Hypermobility Spectrum Disorders Presenting to an Academic Headache Clinic.

    Rozen TD, Bruno KA, Rozen EM, et al.

    Neurology international 2026; (18(2)) doi:10.3390/neurolint18020033.

    PMID: 41745718
  9. 9

    Headache disorders in patients with Ehlers-Danlos syndromes and hypermobility spectrum disorders.

    Mehta D, Simmonds L, Hakim AJ, Matharu M

    Frontiers in neurology 2024; (15()):1460352 doi:10.3389/fneur.2024.1460352.

    PMID: 39582682
  10. 10

    Headache in patients with joint hypermobility.

    Oliveira WS, Hoffmann J, Jácomo AAE, et al.

    Cephalalgia : an international journal of headache 2026; (46(8)):3331024261477381 doi:10.1177/03331024261477381.

    PMID: 42640494
  11. 11

    Functional neurological signs in hypermobile Ehlers-Danlos syndrome and hypermobile spectrum disorders with suspected neuropathic pain.

    Fernandez A, Jaquet M, Aubry-Rozier B, et al.

    Brain and behavior 2024; (14(2)):e3441 doi:10.1002/brb3.3441.

    PMID: 38409931

This page is for informational purposes only and does not constitute medical advice. Contact your clinician about your monitoring plan, and seek emergency care for new, sudden, or severe symptoms.