Intracranial pressure oscillations (B-waves) caused by oscillations in cerebrovascular volume
| Autor: | I. Sayama, Ludwig M. Auer |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
medicine.medical_specialty
Blood Volume Intracranial Pressure business.industry Blood volume Cerebrovascular Circulation Cerebral blood volume Transmural pressure Volume (thermodynamics) Vasoconstriction Anesthesia Internal medicine Cats medicine Cardiology Animals Surgery Autoregulation Neurology (clinical) medicine.symptom business Intracranial pressure |
| Zdroj: | Acta Neurochirurgica. 68:93-100 |
| ISSN: | 0942-0940 0001-6268 |
| DOI: | 10.1007/bf01406205 |
| Popis: | In experiments during stepwise increases in intracranial pressure, B-waves could be provoked synchronously with pial vascular diameter oscillations. The vascular oscillations are known to be a sign of myogenic cerebrovascular regulation. An increase in their amplitude indicates vessel wall relaxation and impending failure of myogenic autoregulation. Therefore, vascular oscillations provoked during intracranial hypertension can be ascribed to a fall in transmural pressure and vessel wall tension. The resulting oscillations in the cerebral blood volume are reflected by ICP oscillations and lead to synchronous variation in ICP, the so-called "B-waves" with a frequency of 0.5 to 2 per minute. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink