✓ The authors present the results of a controlled, randomized study of alterations in spinal cord blood flow, CO2 responsiveness, and autoregulation following experimental spinal cord injury in cats. Permanent paraplegia is shown to be associated with persistent hyperemia, loss of CO2 responsiveness, and impaired autoregulation in the white matter at the injury site. Probable mechanisms underlying these changes in spinal cord vasomotor control are discussed. Marked similarities between vascular responses of injured spinal cord and luxury perfusion of the brain are pointed out.
Agnoli A, , Fieschi C, & Bozzao L, et al: Autoregulation of cerebral blood flow. Studies during drug-induced hypertension in normal subjects and in patients with cerebral vascular diseases. Circulation 38:800–812, 1968 Agnoli A, Fieschi C, Bozzao L, et al: Autoregulation of cerebral blood flow. Studies during drug-induced hypertension in normal subjects and in patients with cerebral vascular diseases. Circulation 38:800–812, 1968
Alexander SC, , Wollman H, & Cohen PJ, et al: Cerebrovascular response to PaCO2 during halothane anesthesia in man. J Appl Physiol 19:561–565, 1964 Alexander SC, Wollman H, Cohen PJ, et al: Cerebrovascular response to PaCO2 during halothane anesthesia in man. J Appl Physiol 19:561–565, 1964
Allen AR: Remarks on the histopathological changes in the spinal cord due to impact. An experimental study. J Nerv Ment Dis 41:141–147, 1914 Allen AR: Remarks on the histopathological changes in the spinal cord due to impact. An experimental study. J Nerv Ment Dis 41:141–147, 1914
Aukland K: Measurement of local blood flow with hydrogen gas, in Bain WH, & Harper AM (eds): Blood Flow Through Organs and Tissues. Baltimore: Williams and Wilkins, 1967, pp 157–162 Aukland K: Measurement of local blood flow with hydrogen gas, in Bain WH, Harper AM (eds): Blood Flow Through Organs and Tissues. Baltimore: Williams and Wilkins, 1967, pp 157–162
Aukland K, , Bower BF, & Berliner RW: Measurement of local blood flow with hydrogen gas. Circ Res 14:164–187, 1964 Aukland K, Bower BF, Berliner RW: Measurement of local blood flow with hydrogen gas. Circ Res 14:164–187, 1964
Bingham WG, , Goldman H, & Friedman SJ, et al: Blood flow in normal and injured monkey spinal cord. J Neurosurg 43:162–171, 1975 Bingham WG, Goldman H, Friedman SJ, et al: Blood flow in normal and injured monkey spinal cord. J Neurosurg 43:162–171, 1975
Dixon WJ, & Massey FJ Jr: Introduction to Statistical Analysis, ed. 3. New York: McGraw-Hill, 1969, pp 150–192 Dixon WJ, Massey FJ Jr: Introduction to Statistical Analysis, ed. 3. New York: McGraw-Hill, 1969, pp 150–192
Dohrmann GJ, , Wagner FC Jr, & Bucy PC: The microvasculature in transitory traumatic paraplegia. An electron microscopic study in the monkey. J Neurosurg 35:263–271, 1971 Dohrmann GJ, Wagner FC Jr, Bucy PC: The microvasculature in transitory traumatic paraplegia. An electron microscopic study in the monkey. J Neurosurg 35:263–271, 1971
Ducker TB, & Kindt GW: The effect of trauma on the vasomotor control of spinal cord blood flow. Curr Top Surg Res 3:163–171, 1971 Ducker TB, Kindt GW: The effect of trauma on the vasomotor control of spinal cord blood flow. Curr Top Surg Res 3:163–171, 1971
Ducker TB, , Kindt GW, & Kempe LG: Pathological findings in acute experimental spinal cord trauma. J Neurosurg 35:700–708, 1971 Ducker TB, Kindt GW, Kempe LG: Pathological findings in acute experimental spinal cord trauma. J Neurosurg 35:700–708, 1971
Ducker TB, & Perot PJ Jr: Spinal cord oxygen and blood flow in trauma. Surg Forum 22:413–415, 1971 Ducker TB, Perot PJ Jr: Spinal cord oxygen and blood flow in trauma. Surg Forum 22:413–415, 1971
Eidelberg E, , Sullivan J, & Brigham A: Immediate consequences of spinal cord injury: possible role of potassium in axonal conduction block. Surg Neurol 3:317–321, 1975 Eidelberg E, Sullivan J, Brigham A: Immediate consequences of spinal cord injury: possible role of potassium in axonal conduction block. Surg Neurol 3:317–321, 1975
Fairholm DJ, & Turnbull IM: Microangiographic study of experimental spinal cord injuries. J Neurosurg 35:277–286, 1971 Fairholm DJ, Turnbull IM: Microangiographic study of experimental spinal cord injuries. J Neurosurg 35:277–286, 1971
Fein JM, , Willis J, & Hamilton J, et al: Polarographical measurement of local cerebral blood flow in the conscious and anesthetized primate. Stroke 6:42–51, 1975 Fein JM, Willis J, Hamilton J, et al: Polarographical measurement of local cerebral blood flow in the conscious and anesthetized primate. Stroke 6:42–51, 1975
Flohr H, , Brock M, & Pöll W: Spinal cord blood flow. Prog Brain Res 35:245–262, 1972 Flohr H, Brock M, Pöll W: Spinal cord blood flow. Prog Brain Res 35:245–262, 1972
Fried LC, & Goodkin R: Microangiographic observations of the experimentally traumatized spinal cord. J Neurosurg 35:709–714, 1971 Fried LC, Goodkin R: Microangiographic observations of the experimentally traumatized spinal cord. J Neurosurg 35:709–714, 1971
Goodkin R, & Campbell JB: Sequential pathologic changes in spinal cord injury: a preliminary report. Surg Forum 20:430–432, 1969 Goodkin R, Campbell JB: Sequential pathologic changes in spinal cord injury: a preliminary report. Surg Forum 20:430–432, 1969
Griffiths IR: Spinal cord blood flow in dogs: the effect of blood pressure. J Neurol Neurosurg Psychiatry 36:914–920, 1973 Griffiths IR: Spinal cord blood flow in dogs: the effect of blood pressure. J Neurol Neurosurg Psychiatry 36:914–920, 1973
Griffiths IR: Spinal cord blood flow in dogs: 2. The effect of the blood gases. J Neurol Neurosurg Psychiatry 36:42–49, 1973 Griffiths IR: Spinal cord blood flow in dogs: 2. The effect of the blood gases. J Neurol Neurosurg Psychiatry 36:42–49, 1973
Hadjidimos AA, , Reulen HJ, & Brock M, et al: rCBF, tissue water content and tissue lactate in brain tumors, in Ross Russell RW (ed): Brain and Blood Flow: Fourth International Symposium on the Regulation of Cerebral Blood Flow. London: Pitman Med Sci, 1971, pp 378–385 Hadjidimos AA, Reulen HJ, Brock M, et al: rCBF, tissue water content and tissue lactate in brain tumors, in Ross Russell RW (ed): Brain and Blood Flow: Fourth International Symposium on the Regulation of Cerebral Blood Flow. London: Pitman Med Sci, 1971, pp 378–385
Häggendal E: Blood flow autoregulation of the cerebral grey matter with comments on its mechanism. Acta Neurol Scand (Suppl) 14:104–110, 1965 Häggendal E: Blood flow autoregulation of the cerebral grey matter with comments on its mechanism. Acta Neurol Scand (Suppl) 14:104–110, 1965
Haining JL, , Turner MD, & Pantall RM: Measurement of local cerebral blood flow in the unanesthetized rat using a hydrogen clearance method. Circ Res 23:313–324, 1968 Haining JL, Turner MD, Pantall RM: Measurement of local cerebral blood flow in the unanesthetized rat using a hydrogen clearance method. Circ Res 23:313–324, 1968
Harper AM, & Glass HI: Effect of alterations in the arterial carbon dioxide tension on the blood flow through the cerebral cortex at normal and low arterial blood pressures. J Neurol Neurosurg Psychiatry 28:449–452, 1965 Harper AM, Glass HI: Effect of alterations in the arterial carbon dioxide tension on the blood flow through the cerebral cortex at normal and low arterial blood pressures. J Neurol Neurosurg Psychiatry 28:449–452, 1965
Hernández-Pérez MJ, , Raichle ME, & Stone HL: The role of the peripheral sympathetic nervous system in cerebral blood flow autoregulation. Stroke 6:284–292, 1975 Hernández-Pérez MJ, Raichle ME, Stone HL: The role of the peripheral sympathetic nervous system in cerebral blood flow autoregulation. Stroke 6:284–292, 1975
Hills GJ, & Ives DJG: The hydrogen electrode, in Ives DJG, & Jenz GJ (eds): Reference Electrodes: Theory and Practice. New York: Academic Press, 1961, pp 71–126 Hills GJ, Ives DJG: The hydrogen electrode, in Ives DJG, Jenz GJ (eds): Reference Electrodes: Theory and Practice. New York: Academic Press, 1961, pp 71–126
Kety S, & Schmidt CF: The effects of altered arterial tensions of carbon dioxide and oxygen on cerebral blood flow and cerebral oxygen consumption of normal young men. J Clin Invest 27:484–492, 1948 Kety S, Schmidt CF: The effects of altered arterial tensions of carbon dioxide and oxygen on cerebral blood flow and cerebral oxygen consumption of normal young men. J Clin Invest 27:484–492, 1948
Kobrine AI, , Doyle TF, & Martins AN: Local spinal cord blood flow in experimental traumatic myelopathy. J Neurosurg 42:144–149, 1975 Kobrine AI, Doyle TF, Martins AN: Local spinal cord blood flow in experimental traumatic myelopathy. J Neurosurg 42:144–149, 1975
Kuschinsky W, , Wahl M, & Bosse O, et al: Perivascular potassium and pH as determinants of local pial arterial diameter in cats: a microapplication study. Circ Res 31:240–247, 1972 Kuschinsky W, Wahl M, Bosse O, et al: Perivascular potassium and pH as determinants of local pial arterial diameter in cats: a microapplication study. Circ Res 31:240–247, 1972
McDowall DG: The effects of clinical concentrations of halothane on the blood flow and oxygen uptake of the cerebral cortex. Br J Anaesthesiol 39:186–196, 1967 McDowall DG: The effects of clinical concentrations of halothane on the blood flow and oxygen uptake of the cerebral cortex. Br J Anaesthesiol 39:186–196, 1967
Meyer JS, , Fukuuchi Y, & Kanda T, et al: Regional measurement of cerebral blood flow and metabolism using intracarotid injection of hydrogen, in Ross Russell RW (ed): Brain and Blood Flow: Fourth International Symposium on the Regulation of Cerebral Blood Flow, London: Pitman Med Sci, 1971, pp 71–80 Meyer JS, Fukuuchi Y, Kanda T, et al: Regional measurement of cerebral blood flow and metabolism using intracarotid injection of hydrogen, in Ross Russell RW (ed): Brain and Blood Flow: Fourth International Symposium on the Regulation of Cerebral Blood Flow, London: Pitman Med Sci, 1971, pp 71–80
Neely WA, , Turner MD, & Hardy JD, et al: The use of the hydrogen electrode to measure tissue blood flow. J Surg Res 5:363–369, 1965 Neely WA, Turner MD, Hardy JD, et al: The use of the hydrogen electrode to measure tissue blood flow. J Surg Res 5:363–369, 1965
Palleske H: Experimental investigations on the regulation of the blood circulation of the spinal cord. II. Acta Neurochir 19:217–232, 1968 Palleske H: Experimental investigations on the regulation of the blood circulation of the spinal cord. II. Acta Neurochir 19:217–232, 1968
Pasztor E, , Symon L, & Dorsch NWC, et al: The hydrogen clearance method in assessment of blood flow in cortex, white matter and deep nuclei of baboons. Stroke 4:556–567, 1973 Pasztor E, Symon L, Dorsch NWC, et al: The hydrogen clearance method in assessment of blood flow in cortex, white matter and deep nuclei of baboons. Stroke 4:556–567, 1973
Petruk KC, , Weir BK, & Overton TR, et al: The effect of graded hypocapnia and hypocapnia on regional cerebral blood flow and cerebral vessel caliber in the rhesus monkey; study of cerebral hemodynamics following subarachnoid hemorrhage and traumatic internal carotid spasm. Stroke 5:230–246, 1974 Petruk KC, Weir BK, Overton TR, et al: The effect of graded hypocapnia and hypocapnia on regional cerebral blood flow and cerebral vessel caliber in the rhesus monkey; study of cerebral hemodynamics following subarachnoid hemorrhage and traumatic internal carotid spasm. Stroke 5:230–246, 1974
Porter JC, , Hines MFM, & Smith KR, et al: Quantitative evaluation of local blood flow of the adenohypophysis in rats. Endocrinology 80:583–598, 1967 Porter JC, Hines MFM, Smith KR, et al: Quantitative evaluation of local blood flow of the adenohypophysis in rats. Endocrinology 80:583–598, 1967
Smith AL, , Larson CP Jr, & Hoff JT: Effects of halothane on regional cerebral blood flow in experimental focal ischemia. Anesthesiology 39:377–381, 1973 Smith AL, Larson CP Jr, Hoff JT: Effects of halothane on regional cerebral blood flow in experimental focal ischemia. Anesthesiology 39:377–381, 1973
Smith AL, & Marque JJ: Anesthetics and cerebral edema. Anesthesiology 45:64–72, 1976 Smith AL, Marque JJ: Anesthetics and cerebral edema. Anesthesiology 45:64–72, 1976
Smith AL, , Pender JW, & Alexander SC: Effects of PCO2 on spinal cord blood flow. Am J Physiol 216:1158–1163, 1969 Smith AL, Pender JW, Alexander SC: Effects of PCO2 on spinal cord blood flow. Am J Physiol 216:1158–1163, 1969
Symon L, , Crockard HA, & Dorsch NWC, et al: Local cerebral blood flow and vascular reactivity in a chronic stable stroke in baboons. Stroke 6:482–492, 1975 Symon L, Crockard HA, Dorsch NWC, et al: Local cerebral blood flow and vascular reactivity in a chronic stable stroke in baboons. Stroke 6:482–492, 1975
Symon L, , Held K, & Dorsch NWC, et al: On the myogenic nature of the autoregulatory mechanism in the cerebral circulation. Eur Neurol 6:11–13, 1971 Symon L, Held K, Dorsch NWC, et al: On the myogenic nature of the autoregulatory mechanism in the cerebral circulation. Eur Neurol 6:11–13, 1971
Wagner FC Jr, , Dohrmann GJ, & Bucy PC: Histopathology of transitory traumatic paraplegia in the monkey. J Neurosurg 35:272–276, 1971 Wagner FC Jr, Dohrmann GJ, Bucy PC: Histopathology of transitory traumatic paraplegia in the monkey. J Neurosurg 35:272–276, 1971
Wahl M, , Deetjen P, & Therua K, et al: Micropuncture evaluation of the importance of perivascular pH for the arteriolar diameter on the brain surface. Pfluegers Arch 316:152–163, 1970 Wahl M, Deetjen P, Therua K, et al: Micropuncture evaluation of the importance of perivascular pH for the arteriolar diameter on the brain surface. Pfluegers Arch 316:152–163, 1970
Waltz AG: Effect of PaCO2 on blood flow and microvasculature of ischemic and nonischemic cerebral cortex. Stroke 1:27–37, 1970 Waltz AG: Effect of PaCO2 on blood flow and microvasculature of ischemic and nonischemic cerebral cortex. Stroke 1:27–37, 1970
Yamaguchi T, , Waltz AG, & Okazaki H: Hyperemia and ischemia in experimental cerebral infarction: correlation of histopathology and regional cerebral blood flow. Neurology 21:565–578, 1971 Yamaguchi T, Waltz AG, Okazaki H: Hyperemia and ischemia in experimental cerebral infarction: correlation of histopathology and regional cerebral blood flow. Neurology 21:565–578, 1971
Yoshida K, , Meyer JS, & Sakamoto K, et al: Autoregulation of cerebral blood flow. Circ Res 19:726–738, 1966 Yoshida K, Meyer JS, Sakamoto K, et al: Autoregulation of cerebral blood flow. Circ Res 19:726–738, 1966
| All Time | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 403 | 107 | 5 |
| Full Text Views | 200 | 23 | 0 |
| PDF Downloads | 82 | 17 | 0 |
| EPUB Downloads | 0 | 0 | 0 |