Posted by Jim Crandall (204.95.48.203) on July 08, 1999 at 12:05:52:
In Reply to: Causes, Root Causes and Pain Mechanism posted by Jack Boyd on July 07, 1999 at 15:25:41:
The problem with pedantry and cluster headaches is that there is not yet any clear truth (other than the reality of our pain).
I think you are correct in your assessment of many things being involved.
Below is a quote from an article featuring the good Dr. Goadsby.
http://www.ama-assn.org/special/migraine/newsline/conferen/scot98/1107neur.htm
Mechanism of migraine pain best described as neurovascular
WESTPORT, Nov 07 (Reuters Health) - Migraine, cluster headache and paroxysmal hemicrania are best described as neurovascular headaches because they are promoted by events in the brain. "The term 'vascular headache' should be consigned to the dustbin of history because it ignores the crucial role that nerves play," according to Dr. Peter J. Goadsby, of the National Hospital for Neurology and Neurosurgery, London, UK, at a session on migraine pathophysiology.
Several studies have demonstrated, Dr. Goadsby emphasized, that blood flow remains reduced after the aura is finished and the headache has started. Vasodilation cannot be the sole explanation for the pain.
peace to all,
Jim