title: Sympathetic blockade and tourniquet pain in surgery of the upper extremity.
mesh_terms: D000328:Adult; D001132:Arm / Q000294:innervation / Q000601:surgery*; D001340:Autonomic Nerve Block; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control*; D008875:Middle Aged; D010146:Pain / Q000517:prevention & control*; D013233:Stellate Ganglion; D013564:Sympathetic Nervous System / Q000502:physiology; D014111:Tourniquets / Q000009:adverse effects*