Oscillating Cerebral Blood Volume: The Origin of B-Waves
Lundberg, in his comprehensive description of ventricular fluid pressure measurements in patients, described rhythmic pressure variations with a frequency of 2-0.5/min. at normal and increased ICP (Lundberg 1960); these oscillations, called “B-waves”, were observed only under pathological circumstances and hence considered as clinically relevant even when observed at normal ICP-levels. Searching for the origin of these rhythms, a connection with changes of cerebrovascular resistance during intracranial hypertension was suggested (Symon et al. 1972, Sørensen et al. 1980).
KeywordsMean Arterial Pressure Intracranial Pressure Intracranial Hypertension Cerebral Blood Volume Transmural Pressure
Unable to display preview. Download preview PDF.
- 1.Auer LM (1978a) The pathogenesis of hypertensive encephalopathy. Acta Neurochir Suppl 27: 1–111Google Scholar
- 3.Auer LM, Haydn F (1979) Multichannel videoangiometry for continuous measurement of pial microvessels. Acta Neurol Scand 60:208–209Google Scholar
- 4.Auer LM (1981) Rhythmic patterns of pial vessels to neurogenic and metabolic stimuli and blood pressure changes. In: Cervos-Navarro J, Fritschka E (eds) Cerebral microcirculation and metabolism. Raven Press, New York P 271–277Google Scholar
- 6.Auer LM, Sayama I, Johansson BB, Leber K (1982) Sympathoadrenergic modulation of cerebral blood volume during increased ICP. Proc. 5th International Symposium on Intracranial Pressure Tokyo, Springer, New YorkGoogle Scholar
- 7.Lundberg N (1960) Continuous recording and control of ventricular fluid pressure in neurosurgical practice. Acta Psych Scand 36:1–193Google Scholar