Abstract：
:In a group of 30 subjects suffering from sympathetic reflex dystrophies of the limbs, the sympathetic ganglia of the affected side were blocked with a local anesthetic. Using an original method, we measured the cutaneous pain threshold before the block and at prefixed intervals after the block during a period of 2 days. In all subjects the cutaneous pain threshold showed damped oscillations both in the limb ipsilateral to the block and in the contralateral one. The analysis of these oscillations showed: (a) that the sympathetic control of the cutaneous pain threshold may be exerted through a negative feedback loop (skin-afferent input-CNS-sympathetic output-skin); (b) that the afferent discharge of a limb controls the contralateral sympathetic output through central mechanisms.
journal_name
Painjournal_title
Painauthors
Procacci P,Francini F,Zoppi M,Maresca Mdoi
10.1016/0304-3959(75)90100-1keywords:
subject
Has Abstractpub_date
1975-06-01 00:00:00pages
167-175issue
2eissn
0304-3959issn
1872-6623pii
00006396-197506000-00005journal_volume
1pub_type
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