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Sympathetic adrenomedullary activity in cluster headache
M L Figuerola1, G Levin, J A Leston
1Centro de Investigaciones Endocrinológicas, CONICET, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina.
Functional Neurology
|March 1, 1992
Summary
Autonomic symptoms during cluster headache attacks are not caused by changes in plasma catecholamines. This study found no alterations in these substances during pain episodes or remission periods.
Area of Science:
- Neurology
- Autonomic Nervous System Research
Background:
- Episodic cluster headache is characterized by autonomic phenomena like lacrimation and rhinorrhea during pain attacks.
- The underlying cause of these dysautonomic symptoms in cluster headache remains unclear.
Purpose of the Study:
- To investigate the role of plasma catecholamines in the autonomic symptoms associated with cluster headache.
- To determine if free and sulphoconjugated catecholamine levels change during cluster headache pain attacks and remission.
Main Methods:
- Blood samples were collected from cluster headache patients during pain attacks, in the hours following attacks, and during remission periods.
- Plasma levels of free and sulphoconjugated catecholamines were measured.
Main Results:
- No significant changes were observed in plasma free or sulphoconjugated catecholamine levels during cluster headache pain attacks compared to remission periods.
- Catecholamine levels remained stable throughout the study phases.
Conclusions:
- The study concludes that the observed dysautonomic symptoms in episodic cluster headache are not directly reflected by modifications in plasma catecholamine concentrations.
- Plasma catecholamine levels do not appear to be the causative factor for autonomic phenomena during cluster headache attacks.