Since the publication of the paper by Dr. Charles H. Frazier and myself,1 some articles of much interest bearing on decompressive operations have appeared. It is the author's intention to refer briefly to the more important of these, to report some cases not included in the former paper with Dr. Frazier, to discuss palliative operation where choked disc is the only important sign of intracranial disease, and to report cases of this character, to speak of rapid increase of blindness under certain conditions as a result of decompression, and of palliative operation performed when the respiration has ceased, but the heart is continuing to beat.
Recurrence of choked discs may occur after decompression, as described by de Schweinitz and Thomson.2 Their patient was trephined for the relief of the symptoms of a tumor, believed to be situated in the right motor area. The tumor was not removed. Three