SympathectomySympathectomy, ChemicalLumbosacral PlexusHyperhidrosisLumbosacral RegionThromboangiitis ObliteransRetroperitoneal SpacePhenolPsoas MusclesLegFootThoracoscopyGanglionectomyHydroxydopaminesBlushingThoracic Surgery, Video-AssistedSweatingThoracic NervesGuanethidineOxidopamineCausalgiaThoracoscopesSympatholyticsSympathetic Nervous SystemFlushingAutonomic Nerve BlockTyramineHandParasympathectomyReflex Sympathetic Dystrophy