Hydrocephalus Definition and Classification
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Questions and Answers

What is a characteristic of individuals with executive function impairment?

  • Difficulty with motivation
  • Poor planning and organisation (correct)
  • Thinking before acting
  • Enhanced ability to generalise
  • What is a common symptom of short term memory impairment?

  • Improved motivation
  • Increased attention span
  • Difficulty following detailed sequence of instructions (correct)
  • Enhanced comprehension
  • What is the meaning of the term 'Hydrocephalus'?

  • Water in the head (correct)
  • Head in the water
  • Brain in the water
  • Water in the brain
  • What is a possible consequence of altered concept of time?

    <p>No inclination to hurry</p> Signup and view all the answers

    What happens when there is a blockage in the circulation of CSF from spaces within the brain?

    <p>The ventricles expand and put pressure on the brain</p> Signup and view all the answers

    What is a common symptom of blocked shunt?

    <p>Loss of appetite</p> Signup and view all the answers

    What is the critical point of cerebral mantle thickness below which hydrocephalus becomes untreatable?

    <p>1 cm</p> Signup and view all the answers

    What is the term for the condition where the lower part of the brain goes further down the spinal cord than usual?

    <p>Arnold Chiari Malformation</p> Signup and view all the answers

    What is a characteristic of individuals with short attention span?

    <p>Difficulty keeping to task</p> Signup and view all the answers

    What is non-communicating hydrocephalus characterized by?

    <p>A blockage in the flow of CSF</p> Signup and view all the answers

    What is a possible treatment option for hydrocephalus?

    <p>Surgery only</p> Signup and view all the answers

    What is the main function of CSF?

    <p>To provide nutrients to the brain and spinal cord</p> Signup and view all the answers

    Which of the following is a cause of non-communicating hydrocephalus?

    <p>All of the above</p> Signup and view all the answers

    What is the composition of CSF?

    <p>Water, salt, glucose, and cells</p> Signup and view all the answers

    What is the primary function of cerebrospinal fluid in relation to the brain and spinal cord?

    <p>To act as a shock absorber between the skull and brain, and between the spinal cord and the spine</p> Signup and view all the answers

    What percentage of cerebrospinal fluid is produced by the choroid plexus?

    <p>50-80%</p> Signup and view all the answers

    What is the primary site of cerebrospinal fluid absorption?

    <p>Sagittal sinus</p> Signup and view all the answers

    What is a common symptom of hydrocephalus in infants?

    <p>Vomiting</p> Signup and view all the answers

    What is the term for the prominent forehead seen in children with hydrocephalus?

    <p>Frontal bossing</p> Signup and view all the answers

    What is a common long-term effect of hydrocephalus in children with spina bifida?

    <p>Learning problems and difficulty concentrating</p> Signup and view all the answers

    What is a common difficulty experienced by children with spina bifida and hydrocephalus?

    <p>Difficulty with fine motor skills</p> Signup and view all the answers

    What is a common complication of hydrocephalus in children with spina bifida?

    <p>Epilepsy</p> Signup and view all the answers

    What percentage of cerebrospinal fluid is produced by a process other than the choroid plexus?

    <p>20-50%</p> Signup and view all the answers

    What is the primary location of cerebrospinal fluid absorption?

    <p>Sagittal sinus</p> Signup and view all the answers

    What is the primary reason for the expansion of ventricles in paediatric hydrocephalus?

    <p>Blockage in the circulation of CSF from the ventricles</p> Signup and view all the answers

    What is a common physical characteristic of children with hydrocephalus?

    <p>Large head size</p> Signup and view all the answers

    What is the significance of the 'point of no return' in paediatric hydrocephalus?

    <p>It is the point beyond which treatment is no longer effective</p> Signup and view all the answers

    What is a common cognitive difficulty experienced by children with spina bifida and hydrocephalus?

    <p>Impaired spatial awareness</p> Signup and view all the answers

    What is the primary cause of communicating hydrocephalus?

    <p>Overproduction of CSF</p> Signup and view all the answers

    What is the term for the 'soft spots' found on the top of an infant's head?

    <p>Fontanelles</p> Signup and view all the answers

    What is the term for the condition characterized by excess cerebrospinal fluid in the brain?

    <p>Hydrocephalus</p> Signup and view all the answers

    What is the role of CSF in the brain and spinal cord?

    <p>It provides nutrients to the brain and spinal cord</p> Signup and view all the answers

    What is the characteristic of non-communicating hydrocephalus?

    <p>There is a blockage in the flow of CSF</p> Signup and view all the answers

    What is the role of cerebrospinal fluid in relation to the brain and spinal cord?

    <p>To act as a shock absorber</p> Signup and view all the answers

    What is a common complication of hydrocephalus in children with spina bifida?

    <p>Vision problems</p> Signup and view all the answers

    What is the term for the condition where the lower part of the brain goes further down the spinal cord than usual?

    <p>Arnold Chiari Malformation</p> Signup and view all the answers

    What is the composition of CSF?

    <p>Water, salt, glucose, and cells</p> Signup and view all the answers

    What is the critical point of cerebral mantle thickness below which hydrocephalus becomes untreatable?

    <p>1 cm</p> Signup and view all the answers

    What is a characteristic of individuals with executive function impairment?

    <p>Difficulty following detailed sequence of instructions</p> Signup and view all the answers

    What is a possible cause of experiencing difficulty with comprehension?

    <p>Difficulty following detailed sequence of instructions</p> Signup and view all the answers

    What is a possible symptom of hydrocephalus in infants?

    <p>Bulging fontanelle and increasing head size</p> Signup and view all the answers

    What is a possible treatment option for hydrocephalus?

    <p>All of the above</p> Signup and view all the answers

    What is a characteristic of individuals with short attention span?

    <p>Difficulty keeping to task and daydreaming</p> Signup and view all the answers

    What is a possible symptom of blocked shunt?

    <p>All of the above</p> Signup and view all the answers

    Study Notes

    Definition of Hydrocephalus

    • Hydrocephalus occurs when there is a blockage in the circulation of CSF from spaces within the brain (ventricles) out over the surface of the brain and down the spinal cord.
    • When too much CSF gets trapped in the pathway, the ventricles expand and put pressure on the brain.

    Aetiology-Based Classification

    • Primary (Brain Malformation): Dysgenetic (Focal - Aqueductal Stenosis, Global - Holoprosencephaly)
    • Secondary: Trauma, Aneurysmal Subarachnoid Haemorrhage, Infection, Tumour

    Classification

    • Communicating Hydrocephalus: occurs when more CSF is produced than can be reabsorbed (e.g. meningitis, traumatic brain injury)
    • Non-Communicating Hydrocephalus: blockage in the flow of CSF (e.g. spina bifida, tumours, meningitis)

    CSF

    • CSF is a clear, colourless fluid that provides nutrients to the brain and spinal cord and takes away waste products.
    • It acts as a shock absorber between the skull and the brain, and between the spinal cord and the spine.

    CSF Production and Absorption

    • 50-80% of CSF is produced by the Choroid Plexus through an energy-dependent process.
    • 20-50% is a by-product of CNS metabolism.
    • Primary site of absorption is the Sagittal Sinus, through a passive process.

    Symptoms

    • High-pitched cry, poor feeding, vomiting, large head, full and hard fontanelles.
    • Headache, lethargy, and sunset eyes (where the white of the eye can be seen at the top of the eye).

    Signs

    • Large head size or rapidly growing head.
    • Full fontanelles ('soft spot') in a baby.
    • 'Sunset eyes' and frontal bossing (the forehead more prominent).

    Long-term Effects

    • Children with spina bifida may have physical problems, learning difficulties, and difficulty concentrating.
    • Some may have vision problems, epilepsy, headaches, and early onset of puberty.
    • Fine motor skills may be impaired, affecting drawing and sports.
    • Short-term memory impairment, short attention span, and diminished motivation/initiation.

    Management

    • Drainage, surgery, and medication.
    • Third ventriculostomy and shunt management (with potential complications of blocked shunt).

    Definition of Hydrocephalus

    • Hydrocephalus occurs when there is a blockage in the circulation of CSF from spaces within the brain (ventricles) out over the surface of the brain and down the spinal cord.
    • When too much CSF gets trapped in the pathway, the ventricles expand and put pressure on the brain.

    Aetiology-Based Classification

    • Primary (Brain Malformation): Dysgenetic (Focal - Aqueductal Stenosis, Global - Holoprosencephaly)
    • Secondary: Trauma, Aneurysmal Subarachnoid Haemorrhage, Infection, Tumour

    Classification

    • Communicating Hydrocephalus: occurs when more CSF is produced than can be reabsorbed (e.g. meningitis, traumatic brain injury)
    • Non-Communicating Hydrocephalus: blockage in the flow of CSF (e.g. spina bifida, tumours, meningitis)

    CSF

    • CSF is a clear, colourless fluid that provides nutrients to the brain and spinal cord and takes away waste products.
    • It acts as a shock absorber between the skull and the brain, and between the spinal cord and the spine.

    CSF Production and Absorption

    • 50-80% of CSF is produced by the Choroid Plexus through an energy-dependent process.
    • 20-50% is a by-product of CNS metabolism.
    • Primary site of absorption is the Sagittal Sinus, through a passive process.

    Symptoms

    • High-pitched cry, poor feeding, vomiting, large head, full and hard fontanelles.
    • Headache, lethargy, and sunset eyes (where the white of the eye can be seen at the top of the eye).

    Signs

    • Large head size or rapidly growing head.
    • Full fontanelles ('soft spot') in a baby.
    • 'Sunset eyes' and frontal bossing (the forehead more prominent).

    Long-term Effects

    • Children with spina bifida may have physical problems, learning difficulties, and difficulty concentrating.
    • Some may have vision problems, epilepsy, headaches, and early onset of puberty.
    • Fine motor skills may be impaired, affecting drawing and sports.
    • Short-term memory impairment, short attention span, and diminished motivation/initiation.

    Management

    • Drainage, surgery, and medication.
    • Third ventriculostomy and shunt management (with potential complications of blocked shunt).

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    Description

    Learn about the definition and causes of hydrocephalus, including primary and secondary aetiology-based classification.

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