RT Journal A1 Sugar O T1 CErebral circulation JF JAMA JO JAMA YR 1969 FD September 29 VO 209 IS 13 SP 2058 OP 2058 DO 10.1001/jama.1969.03160260062029 UL http://dx.doi.org/10.1001/jama.1969.03160260062029 AB Cerebral circulation and its disorders were chosen as the main subjects for the third European Congress of Neurosurgery, which took place in Madrid in April 1967. Professor Luyendijk of the Academic Hospital in Leyden, Holland, has had the almost impossible task of putting together 71 separate presentations by 126 contributors, to make some coherent arrangement of articles varying in length and explicitness as well as complexity. Since neurosurgeons are such individualists, there is small wonder that the presentations vary greatly.The 3 articles on anatomy and embryology of blood vessels of the brain are followed by 18 on physiology. Most of these deal with blood flow measurements in normal patients, measurements in those anesthetized with and without raised intracranial pressure, and the effects of various medications and pathologic states on cerebral flow. Occlusive and other vascular diseases are studied from the neuropathological and then from the radiological standpoint (two and