Cerebrospinal fluid circulation following subarachnoid hemorrhage.

1 33 6 165 Yes 1 yr. Complete recovery Alterations in the cerebrospinal fluid (CSF) cir culation may follow subarachnoid hemorrhage a! though the frequency and extent to which this occurs is unknown. Accurate definition of these abnormali ties is important because in some instances they result in symptomatic communicating hydrocephalus (1 ,2) . Current methods of assessing the patency of the subarachnoid space and ventricular size in dude pneumoencephalography and ventriculography. These techniques provide excellent anatomic de tail but give little direct information about the func tional integrity of the CSF circulation. CSF pressure measurements often are of no help because they may be normal in the presence of marked ventricular dilatation (3). Radioisotope cisternography has been shown to be useful in the study of CSF circulation in a variety of disease states (4,5) . The purpose of this report is to describe the cisternographic patterns of CSF cir culation in nine patients 1—6months after subarach noid hemorrhage. METHODS AND MATERIALS