Population
Patients with 'sympathetic dependent' pain (e.g., causalgia and reflex sympathetic dystrophy)
Design
Review
Authors
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May warrant caution with sympathetic blocks for presumed sympathetically maintained pain; leaves open visceral afferent mechanisms for prospective study.
This review proposes that visceral afferents, rather than the sympathetic nervous system, mediate pains traditionally considered 'sympathetic dependent'.
G D Schott (1994) studied this question.
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