Hypotonic-hyporesponsive episode
Hypotonic-hyporesponsive episode (HHE) is a sudden and temporary reaction to immunization. It is characterized by a decreased level of consciousness (hypotonia) and a reduced response to stimuli (hyporesponsiveness).
Definition[edit | edit source]
A Hypotonic-hyporesponsive episode (HHE) is a sudden, temporary, and usually benign reaction to immunization. It is characterized by a decreased level of consciousness (hypotonia) and a reduced response to stimuli (hyporesponsiveness).
Symptoms[edit | edit source]
The main symptoms of HHE are a sudden loss of muscle tone, color, and responsiveness. The child may become limp and may not respond to stimuli. This can last from a few minutes to a few hours.
Causes[edit | edit source]
HHE is most commonly associated with the administration of whole-cell pertussis vaccine, but it can also occur after the administration of other vaccines.
Treatment[edit | edit source]
Treatment for HHE is usually supportive, as the condition is self-limiting and resolves on its own.
Prevention[edit | edit source]
The best way to prevent HHE is to follow the recommended immunization schedule and to monitor the child closely after vaccination.
See also[edit | edit source]
References[edit | edit source]
| Hypotonic-hyporesponsive episode Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
