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Hashimoto's Encephalopathy/SREAT & Seronegative Autoimmune Encephalitis Alliance

Providing patient support, public awareness, and medical research for Hashimoto's Encephalopathy (HE)/SREAT and Seronegative Autoimmune Encephalitis (SAE).

HESA is a 501 3(c) not for profit organization for

Autoimmune Encephalitis, specifically Hashimoto's Encephalopathy/SREAT (HE/SREAT) and

Seronegative Autoimmune Encephalitis (SAE).

Seronegative means there is no known antibody identified as the cause of Autoimmune Encephalitis.

The Hashimoto’s Encephalopathy/SREAT & Seronegative Autoimmune Encephalitis Alliance was formed in 2012 by two HE patients.
It is HESA’s mission to collect, archive, and share information regarding Hashimoto’s Encephalopathy (“HE”),

also known as Steroid Responsive Encephalopathy Associated with Thyroiditis (“SREAT”),
and Seronegative Autoimmune Encephalitis ("SAE") with the public and medical professionals.
We share information relevant to HE/SREAT, and SAE updates on HESA's activities and our publications.

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Videos
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Hashimoto's Encephalopathy/SREAT & Seronegative Autoimmune Encephalitis

 Available on Amazon, Barnes and Noble, and here in our bookstore.

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"Dismissing a patient can be one of the gravest errors a neurologist can make."

-Dr. Ahmed Zayed Obeidat

Neuroimmunology

Froedtert Hospital, Milwaukee, WI

UPCOMING RESEARCH

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Better Insights, Better Outcomes


     Join us in transforming lives through groundbreaking HE Research
     Hashimoto’s Encephalopathy (HE) is a rare autoimmune disease that disrupts lives in profound ways. It affects people of all ages, races, and ethnic backgrounds, causing brain dysfunction. While some patients recover after treatment, many remain permanently impaired, unable to return to their pre-HE lives.

But there is hope.

     For the first time, research is being conducted to transform the diagnosis and treatment of HE. HESA is partnering with Dr. Ahmed Obeidat, a leading expert at the Medical College of Wisconsin, to conduct a groundbreaking study that aims to improve outcomes for HE patients worldwide.


     Why does this research matter?


     The diagnosis of HE is made difficult because there is, to date, no definitive test to establish it. For those who receive a diagnosis of HE, treatment usually involves immunosuppression, but treatment protocols are not universal and in many cases, patients cannot obtain insurance approval for the more costly treatment protocols that become necessary when first-line treatments fail, with insurers classifying such treatments as “experimental” or “unproven” due to the lack of studies establishing their efficacy.
     Dr. Obeidat believes HE is under-studied, under-recognized, and under-diagnosed. As a result, he has observed that many HE patients do not receive proper care. He is dedicated to improving the medical diagnosis and treatment of HE, including long-term patient management.

 

With your support, we can:
● Identify the frequency and nature of abnormal diagnostic tests in HE patients.
● Understand the factors influencing treatment decisions and outcomes.
● Compare markers of neural damage in HE patients and controls.
● Develop an educational curriculum for healthcare professionals.
● Create no-cost educational materials for patients and families.

 

     This is the first study of its kind, and its findings have the potential to revolutionize how HE is diagnosed and treated, improving the lives of countless patients.
     How you can help
     HESA receives no government funding and relies entirely on donations to make this research
possible. We aim to raise $10,000  to fund this critical study. Every dollar brings us closer to:
- Providing hope for patients and families.
- Equipping doctors with the tools they need to deliver better care.
- Advancing understanding of a disease that has been overlooked for too long.

     Donate today

     Your support can change lives. Together, we can create a future where HE patients receive
timely diagnoses, effective treatments, and the chance to reclaim their lives.

 

Dr. Ahmed Obeidat

JOURNEY TO DIAGNOSIS SERIES

Join us as we discuss journeys to diagnosis. For full videos CLICK HERE

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A TRUE PERSONAL NARRATIVE
BY KRISTEN L.

Join us as we speak with AE caregivers. For full videos CLICK HERE

AE CAREGIVER SERIES

PARTICIPATE IN A SURVEY

You can get involved by helping us understand our community

by filling out oursimple survey about your AE

HERE

HESA IN-PERSON MEET UPS

An in-person face to face

meeting with other autoimmune encephalitis patients, caregivers, family members and friends.

WEDA- World Encephalitis Day Conference- 2025

NOTEABLE ARTICLES, BOOKS & RESEARCH

Medical Gaslighting: A Growing Concern in Modern Healthcare

Feature Article December - January 2025

Hashimoto's Encephalopathy/SREAT & Seronegative Autoimmune Encephalitis 

HESA 2024

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The Acute Neurology Survival Guide

With section on  Autoimmune Encephalitis

Catherine S.W. Albin, Sahar F. Zafar

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Autism or Encephalitis?

"My Son’s Misdiagnosis &

Our Family’s Season in Hell"

S. Stiles, Quillette, 1/21/22

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Understanding Hashimoto's Encephalopathy:

An Expanded and Updated Guide for

Patients and Caregivers. 2016 Edition.

HESA

CONTACT

Contact

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PLEASE NOTE:

This website is not a substitute for independent professional advice. Nothing contained on this website is intended to be used as medical advice. No content is intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professional’s advice.

Content published to this website not evaluated by a medical professional unless otherwise noted. Articles and studies are linked to for personal reference, not to provide advice, diagnosis, or treatment of any medical condition or suspected medical condition.

Although you will find a great deal of information about HE/SREAT and Seronegative AE here, it is intended to provide information only. HESA cannot provide medical advice. If you have HE/SREAT or Seronegative Autoimmune Encephalitis, or think you may have it, consult a qualified neurologist, preferably one with experience addressing immune-mediated illness. HESA shall not be held responsible for the contents of links to studies, their errors, omissions, or any malicious software they may contain.

All information is provided for your personal use and research without warranty.

© 2022 Hashimoto's Encephalopathy SREAT Alliance
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