Cerebrovascular reactivity and vasospasm after subarachnoid hemorrhage: A pilot study

J. A. Frontera, T. Rundek, J. M. Schmidt, J. Claassen, A. Parra, K. E. Wartenberg, R. E. Temes, S. A. Mayer, J. P. Mohr, R. S. Marshall

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


The authors performed serial transcranial Doppler (TCD) and carbon dioxide reactivity (CO2R) testing in 20 aneurysmal subarachnoid hemorrhage patients to determine whether impaired cerebrovascular reactivity was associated with symptomatic vasospasm. Symptomatic vasospasm occurred in 9 of 14 patients with abnormal CO2R and in none of 6 patients with preserved reactivity (p = 0.011). Abnormal CO2R preceded the onset of vasospasm in 7 of 9 patients. Abnormal standard TCD testing was not associated with vasospasm.

Original languageEnglish (US)
Pages (from-to)727-729
Number of pages3
Issue number5
StatePublished - Mar 2006
Externally publishedYes

ASJC Scopus subject areas

  • Clinical Neurology


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