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A member asked:
Pt ganglion provides vascular parasympathetics => vascular constriction. how does this mechanism relieving cluster ha w/ pt ganglion nerve block?
A doctor has provided 1 answer
Blocks pathway: A sphenopalatine ganglion block will affect both sympathetic and parasympathetic preganglionic fibers as well as sensory affervent nerves. Blocking these pathways inhibits the transmission of the nerve impulses which are thought to be involved in cluster headaches.
Answered 11/7/2018
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