Effect of aminophylline and isoproterenol on spinal cord blood flow after impact injury

D. Dow-Edwards, V. DeCrescito, J. J. Tomasula, E. S. Flamm

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

A study of the effects of spinal cord injury upon spinal cord blood flow was carried out in cats. A 400 g-cm impact produced an overall reduction in spinal cord blood flow of 24% in the white matter and 30% in the gray matter, as determined by 14C-antipyrine autoradiography. At the level of the injury, white-matter flow was 8.1 ml/100 g/min, g/min, a reduction of 49%, and in the gray matter, 12.5 ml/100 g/min, a reduction of 76%. Treatment with aminophylline and isoproterenol improved the overall blood flow in the spinal cord. At the level of the injury, white-matter flow after this treatment was no longer significantly different from control values. The gray-matter flow remained decreased to 26.2 ml/100 g/min, a reduction of only 47%. It is proposed that aminophylline and isoproterenol may increase cyclic adenosine monophosphate (AMP) and prevent platelet aggregation along the endothelial surfaces of the microcirculation, and may thereby help to maintain improved perfusion of the injured spinal cord.

Original languageEnglish (US)
Pages (from-to)385-390
Number of pages6
JournalJournal of neurosurgery
Volume53
Issue number3
DOIs
Publication statusPublished - Jan 1 1980
Externally publishedYes

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ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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