Acute hydrocephalus in nonaneurysmal Perimesencephalic hemorrhage: Evidence of CSF block at the tentorial hiatus

Gabriel J.E. Rinkel*, E. F.M. Wijdicks, M. Vermeulen, J. Th J. Tans, D. Hasan, J. van Gijn

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)

Abstract

The acute hydrocephalus in patients with nonaneurys-mal perimesencephalic hemorrhage suggests an extraventricular obstruction of CSF flow. We studied the occurrence of acute hydrocephalus and the site of cisternal blood in 40 consecutive patients with perimesencephalic hemorrhage. In all 11 patients with hydrocephalus, all perimesencephalic cisterns were filled with blood; this occurred in only five of the 29 patients (17%) without hydrocephalus (p < 0.0001). We conclude that in the absence of intraventricular blood, filling of all perimesencephalic cisterns with blood is a necessary factor for the development of acute hydrocephalus.

Original languageEnglish
Pages (from-to)1805-1807
Number of pages3
JournalNeurology
Volume42
Issue number9
Publication statusPublished - 1 Jan 1992

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