10 Result(s)
within
Chapter
Matthew Garnett
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Chapter
Lower Breakpoint of Intracranial Amplitude-Pressure Relationship in Normal Pressure Hydrocephalus
The relationship between intracranial pulse amplitude (AMP) and mean intracranial pressure (ICP) has been previously described. Generally, AMP increases proportionally to rises in ICP. However, at low ICP a lo...
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Chapter
Global Cerebral Autoregulation, Resistance to Cerebrospinal Fluid Outflow and Cerebrovascular Burden in Normal Pressure Hydrocephalus
Introduction: We previously examined the relationship between global autoregulation pressure reactivity index (PRx), mean arterial blood pressure (ABP), Resistance to cerebral spinal fluid (CSF) outflow (Rout) a...
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Chapter
The Role of Cerebrospinal Fluid Dynamics in Normal Pressure Hydrocephalus Diagnosis and Shunt Prognostication
Background: Over the years, there have been several reports and trials of the resistance to cerebrospinal fluid (CSF) outflow (Rout) in normal pressure hydrocephalus (NPH). This work aimed to revisit the utility...
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Chapter
Single Center Experience in Cerebrospinal Fluid Dynamics Testing
Normal pressure hydrocephalus is more complex than a simple disturbance of the cerebrospinal fluid (CSF) circulation. Nevertheless, an assessment of CSF dynamics is key to making decisions about shunt insertio...
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Chapter
Differences in Cerebrospinal Fluid Dynamics in Posttraumatic Hydrocephalus Versus Atrophy, Including Effect of Decompression and Cranioplasty
Introduction: Challenges in diagnosing post-traumatic hydrocephalus (PTH) have created a need for an accurate diagnostic tool. We aim to report CSF dynamics in PTH and atrophy, along with differences before and ...
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Chapter
Comparison of Assessment for Shunting with Infusion Studies Versus Extended Lumbar Drainage in Suspected Normal Pressure Hydrocephalus
Introduction: Tools available for diagnosis of normal pressure hydrocephalus (NPH) and prediction of shunt-response are overnight ICP monitoring, infusion studies, and extended lumbar drainage (ELD). We investig...
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Chapter and Conference Paper
Are Slow Waves of Intracranial Pressure Suppressed by General Anaesthesia?
Objectives: Slow waves of intracranial pressure (ICP) are spontaneous oscillations with a frequency of 0.3–4 cycles/min. They are often associated with pathological conditions, following vasomotor activity in th...
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Chapter and Conference Paper
Is There a Link Between ICP-Derived Infusion Test Parameters and Outcome After Shunting in Normal Pressure Hydrocephalus?
Objective: The term “hydrocephalus” encompasses a range of disorders characterised by clinical symptoms, abnormal brain imaging and derangement of cerebrospinal fluid (CSF) dynamics. The ability to elucidate whi...
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Chapter
Shunt Testing In Vivo: Observational Study of Problems with Ventricular Catheter
Most shunt obstructions happen at the inlet of the ventricular catheter. Three hundred six infusion studies from 2007 to 2011 were classified as having a typical pattern of either proximal occlusion or patency...
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Chapter
Hydrocephalus
Hydrocephalus is defined as the abnormal accumulation of cerebrospinal fluid (CSF), within all or part of the ventricular system, which is currently, or has been, at an abnormally high pressure. The increased ...
