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B-waves revisited


Spiegelberg, Andreas; Preuß, Matthias; Kurtcuoglu, Vartan (2016). B-waves revisited. Interdisciplinary Neurosurgery, 6:13-17.

Abstract

Reduced intracranial compliance is a key manifestation common to a number of pathological conditions of the brain. It is encountered in, but not limited to, traumatic brain injury, cerebral edema, and hydrocephalus. There are no clinically accepted methods to measure intracranial compliance available to date.
Intracranial pressure (ICP) waveform analysis is seeing a revival driven by advances in our understanding of cerebrospinal fluid and pressure dynamics. Its translation to widespread clinical use is dependent on the possibility to derive relevant metrics such as intracranial compliance reliably and non-invasively.
The B-wave is one of the features of the ICP waveform, reflecting vasogenic activity of cerebral autoregulation. B-waves were originally defined to occupy the 0.5 to 2 cycles per minute frequency range. Recently renamed and redefined as slow waves with an extended range of 0.33 to 3 cycles per minute, specific changes in their pattern of occurrence are considered to be indicative of reduced intracranial compliance.
With the still unmet need for a clinically acceptable method for acquiring intracranial compliance, and the revival of ICP waveform analysis, B-waves are moving back into the research focus. Herein we provide a concise review of the literature on B-waves, including a critical assessment of non-invasive methods for obtaining B-wave surrogates.

Abstract

Reduced intracranial compliance is a key manifestation common to a number of pathological conditions of the brain. It is encountered in, but not limited to, traumatic brain injury, cerebral edema, and hydrocephalus. There are no clinically accepted methods to measure intracranial compliance available to date.
Intracranial pressure (ICP) waveform analysis is seeing a revival driven by advances in our understanding of cerebrospinal fluid and pressure dynamics. Its translation to widespread clinical use is dependent on the possibility to derive relevant metrics such as intracranial compliance reliably and non-invasively.
The B-wave is one of the features of the ICP waveform, reflecting vasogenic activity of cerebral autoregulation. B-waves were originally defined to occupy the 0.5 to 2 cycles per minute frequency range. Recently renamed and redefined as slow waves with an extended range of 0.33 to 3 cycles per minute, specific changes in their pattern of occurrence are considered to be indicative of reduced intracranial compliance.
With the still unmet need for a clinically acceptable method for acquiring intracranial compliance, and the revival of ICP waveform analysis, B-waves are moving back into the research focus. Herein we provide a concise review of the literature on B-waves, including a critical assessment of non-invasive methods for obtaining B-wave surrogates.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Physiology
07 Faculty of Science > Institute of Physiology

04 Faculty of Medicine > Neuroscience Center Zurich
04 Faculty of Medicine > Center for Integrative Human Physiology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:2016
Deposited On:13 Feb 2017 13:02
Last Modified:08 Dec 2017 14:43
Publisher:Elsevier
ISSN:2214-7519
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.inat.2016.03.004

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