The progress of 100 patients, with and without diabetes, was followed for a period of years after treatment by lumbar sympathectomy. At the end of the tenth postoperative year, 42 patients were alive, and only 8 of these survivors were disabled by disease in their limbs. The life expectancy of patients whose limbs responded well to sympathectomy was greater than that of patients who failed to improve.
Edwards EA, Crane C. Ten-Year Status After Sympathectomy for Arteriosclerosis. JAMA. 1961;175(8):677-679. doi:10.1001/jama.1961.03040080033007