1. In Raynaud's disease sympathectomy will relieve the symptoms of the disease and prevent the formation of gangrene.
2. All cases of vascular diseases of the extremities have associated vasospasm in a varying degree. This latter can be relieved by sympathectomy.
3. Sympathectomy leaves no important deleterious effects either in the lumbar or cervicothoraci excisions.
4. Lumbar sympathectomies improve the bowel action.