Surgical sympathectomies and chemical sympatholyses bring about a true sympathetic deafferentation. This leads to central retrograde degenerescence reactions of the pre-ganglionic neurons, to a reduction of the muscular tone and to a secondary neurovascular disorder at the edge of the sympathetic denervation zone.
Farcot JM, Grasser C, Muller JF.
Clinique de la Toussaint, Strasbourg.
Agressologie. 1990 Apr;31(4):191-7.