TY - JOUR T1 - The effect of changing arterial blood pressure and carbon dioxide on cerebral blood flow JF - Journal of Neurology, Neurosurgery & Psychiatry JO - J Neurol Neurosurg Psychiatry SP - 678 LP - 679 DO - 10.1136/jnnp-2019-322432 VL - 91 IS - 7 AU - Jean Claude Baron Y1 - 2020/07/01 UR - http://jnnp.bmj.com/content/91/7/678.abstract N2 - The short article entitled ‘Effect of alterations in the arterial carbon dioxide tension on the blood flow through the cerebral cortex at normal and low arterial blood pressures’, published in 1965 in the JNNP by A Murray Harper and HI Glass,1 is among the most cited articles ever published in the journal (429 citations as of 21 January 2020). Interestingly, the same first author published the subsequent year in the JNNP another highly cited article2 on a closely related subject (372 citations as of 2020).The effect of changing arterial blood pressure and carbon dioxide on cerebral blood flow Authors: Harper AM, Glass HI Year Published: 1965 Number of times cited: 548The Harper and Glass 1965 article was the first to assess the effects of changes in the arterial partial pressure of CO2 (PaCO2) on the cerebral circulation in conditions of normal arterial blood pressure, moderate hypotension and severe hypotension. To this end, the authors applied in anaesthetised mongrel dogs the technique that Lassen and Ingvar had just developed to measure quantitative regional blood flow of the exposed cerebral cortex using radioactive krypton injected in the internal carotid artery.3 The strong effects of changes in PaCO2 on the cerebral vasculature, first discovered in 1928 by Forbes and Wolff via direct observation of the pial arteries through a glass window in animals, … ER -