Pain in an extremity that develops following trauma, infection, thrombophlebitis and many other leaions has been recognized for years and designated by a variety of names. These syndromes appear to have the same physiopathology and response to therapy. All of them are characterized by exeessive unduly prolonged pain, vasomotor and other autonomic disturbances, delayed recovery of function and trophic changes. We have treated two cases of reflex sympathetic dystrophy. One case was only treated by stellate gangUon block repeated 26 times and the other case required surgical thoracic sympathectomy for complete recovery after 60 repeated stellate ganglion blocks. We report these two cases of reflex sympathetic dystrophy and review the literature.