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Published in: The Journal of Headache and Pain 1/2020

Open Access 01-12-2020 | Cluster Headache | Research article

Phase dependent hypothalamic activation following trigeminal input in cluster headache

Authors: Laura H. Schulte, Ame Abdu Haji, Arne May

Published in: The Journal of Headache and Pain | Issue 1/2020

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Abstract

Background

Task-free imaging approaches using PET have shown the posterior hypothalamus to be specifically activated during but not outside cluster headache attacks. Evidence from task related functional imaging approaches however is scarce.

Methods

Twenty-one inactive cluster headache patients (episodic cluster headache out of bout), 16 active cluster headache patients (10 episodic cluster headache in bout, 6 chronic cluster headache) and 18 control participants underwent high resolution brainstem functional magnetic resonance imaging of trigeminal nociception using gaseous ammonia as a painful stimulus.

Results

Following trigeminonociceptive stimulation with ammonia there was a significantly stronger activation within the posterior hypothalamus in episodic cluster headache patients out of bout when compared to controls. When contrasting estimates of the pain contrast, active cluster headache patients where in between the two other groups but did not differ significantly from either.

Conclusion

The posterior hypothalamus might thus be hyperexcitable in cluster headache patients outside the bout while excitability to external nociceptive stimuli decreases during in bout periods, probably due to frequent hypothalamic activation and possible neurotransmitter exhaustion during cluster attacks.
Literature
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go back to reference Matharu M, May A (2008) Functional and structural neuroimaging in trigeminal autonomic cephalalgias. Curr Pain Headache Rep 12:132–137CrossRef Matharu M, May A (2008) Functional and structural neuroimaging in trigeminal autonomic cephalalgias. Curr Pain Headache Rep 12:132–137CrossRef
Metadata
Title
Phase dependent hypothalamic activation following trigeminal input in cluster headache
Authors
Laura H. Schulte
Ame Abdu Haji
Arne May
Publication date
01-12-2020
Publisher
Springer Milan
Published in
The Journal of Headache and Pain / Issue 1/2020
Print ISSN: 1129-2369
Electronic ISSN: 1129-2377
DOI
https://doi.org/10.1186/s10194-020-01098-2

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