Prostaglandin D2 monitoring in human CSF after subarachnoid hemorrhage: the possible role of prostaglandin D2 in the genesis of cerebral vasospasm

P. Gaetani, V. Silvani, M. T. Crivellari, T. Viganò, R. Rodriguez Y Baena, P. Paoletti

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Abstract

Experimental and clinical studies indicate that cerebral vasospasm following subarachnoid hemorrhage (SAH) may be caused by changed biochemical properties of the endothelium and vascular smooth muscle cell exposed to vasoactive substances synthetized by cerebral arteries and released in clotted blood. Many compounds have been identified in CSF from SAH patients: Thromboxanes A2 and B2, Prostaglandins F, E2 and D2 are the major prostanoids incriminated in the causation of cerebral arterial spasm. We have monitored the CSF PGD2 concentrations with serial lumbar punctures at different intervals from the hemorrhage in 16 patients admitted for SAH: PGD2 was measured with radioimmunoassay as its 9-methoxy derivative. The lumbar CSF PGD2 concentration ranges from 0,11 to 1.53 ng/ml. In 7 cases vasospasm was angiographically demonstrated. 9 patients presented no clinical or radiological evidence of vasospasm. In 5 cases cisternal CSF samples were available at the operation by cisternal punctures. There was no correlation between CSF PGD2 concentration and clinical course. In the 7 cases with evidence of vasospasm a significant increase of CSF PGD2 corresponded to neurological deterioration. In all 9 cases without evidence of vasospasm CSF PGD2 concentration trend was in a steady-state. The cisternal CSF PGD2 concentration was higher than lumbar CSF concentration in cases with arterial spasm. This suggests the importance of the clotting phenomenon in vasospasm onset after SAH. PGD2 is one of the most important spasmogens in clotted blood. Although its role in the genesis of vasospasm onset remains to be defined, its vasospatic action, in addition to that of other analogous compounds, seems to be relevant.

Original languageEnglish
Pages (from-to)81-88
Number of pages8
JournalItalian Journal of Neurological Sciences
Volume7
Issue number1
DOIs
Publication statusPublished - Feb 1986

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Keywords

  • cerebral vasospasm
  • Intracranial aneurysm
  • prostaglandin D
  • subarachnoid hemorrhage

ASJC Scopus subject areas

  • Neuroscience(all)
  • Clinical Neurology

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