Progressive ventricular dilatation following pneumoencephalography
| Autor: | Mannie M. Schechter, Richard L. Rovit, Benbienizi Ortega, Ray A. Brinker |
|---|---|
| Rok vydání: | 1972 |
| Předmět: |
Adult
Male medicine.medical_specialty Intracranial Pressure medicine.medical_treatment Cerebral Ventricles Cerebrospinal fluid Normal pressure hydrocephalus Internal medicine Cisterna Magna medicine Humans Pneumoencephalography Reduction (orthopedic surgery) Cerebrospinal Fluid Cistern business.industry Middle Aged medicine.disease Occult Cerebrospinal Fluid Shunts Hydrocephalus Normal Pressure Surgery Hydrocephalus medicine.anatomical_structure Cardiology business Ependyma |
| Zdroj: | Journal of Neurosurgery. 36:50-59 |
| ISSN: | 0022-3085 |
| DOI: | 10.3171/jns.1972.36.1.0050 |
| Popis: | ✓ Eight patients with “normal pressure hydrocephalus” are presented who demonstrated radiographic and occasional clinical evidence of progressive dilatation of the ventricles following pneumoencephalography. The characteristic pneumographic signs of tentorial obstruction to the flow of cerebrospinal fluid (CSF) had been documented in the original air contrast study. The authors postulate that pneumoencephalography in patients with normal pressure hydrocephalus may result in a sudden displacement of CSF from the ventricles into the already compromised basal cisterns, leading to further obstruction of CSF outflow and progressive ventricular dilatation. Other mechanisms such as reduction in the potential resorptive capacity of the ventricular ependyma by air replacing ventricular fluid may play a part. The value of repeat radiological studies 24 and 48 hours after the original pneumogram is emphasized both as an aid in the radiological diagnosis of normal pressure hydrocephalus and as an additional parameter for studying problems in CSF flow and absorption. |
| Databáze: | OpenAIRE |
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