Deteriorating memory Flashcards

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1
Q

Which investigations should be done for a patient with memory loss?

A
  • Urinanalysis
    Checking for UTI which could cause delirium or confusion
  • Bloods
    As part of confusion screen
  • CT or MRI brain scan
    Could help detecting harmorrhages/clots, space-occupying lesions, and atrophy
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2
Q

What should you ask in a memory loss history?

A

HPC:

  • What has the patient been forgetting?
  • How are their daily activities?
  • Do they remember and recognise people?
  • Do they remember names?
  • Do they remember significant dates?
  • How have they been eating?
  • Do they get lost?
  • Do they put their belongings in strange places?
  • Do they forget that people have passed away?
  • How is their vocabulary?
  • How is their concentration?
  • How are they sleeping?
  • Do they feel any paranoia?
  • Do they intermittently seem ‘normal’?
  • Have they had any falls?
  • Have they had any changes in personality?

Check PMH, FHx, and SHx.

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3
Q

How does normal pressure hydrocephalus present?

A
  • Memory loss
  • Magnetic gait
  • Incontinence
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4
Q

How does Huntington’s disease present?

A
  • Memory loss
  • Progressive cognitive deficits
  • Choreic movements
  • Family history
  • Relatively young onset
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5
Q

How does a traumatic brain injury present?

A
  • History of fall or trauma
  • Possibly reduced or fluctuating GCS
  • Acute onset of deficits
  • Focal signs
  • Well defined, less progressive signs
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6
Q

How does the ACE III test work?

A
The ACE III is used in testing cognitive function
Comprehensive assessment of
- Memory
- Attention
- Fluency
- Visuospatial skills
- Language

A score less than 82 is suggestive of possible dementia. Not diagnostic (dementia is a clinical diagnosis)

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7
Q

What is an alternative cognitive test to the ACE III?

A

The MOCA (Montral Cognitive Assessment)

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8
Q

What are the different types of dementia?

A
  • Alzheimer’s dementia
  • Lewy-body dementia (memory before motor)
  • Fronto-temporal dementia
  • Parkinson’s dementia (motor before memory
  • Vascular dementia
  • Wilson’s dementia
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9
Q

What are some differentials for dementia?

A
  • Huntington’s disease
  • Spino-cerebellar degenerations
  • HIV/AIDS dementia
  • MND/MS dementia
  • Alcohol-related dementias
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10
Q

What signs are seen in temporal lobe impairment?

A
  • Prospagnosia (difficulty recognising faces
  • Difficulty understanding words
  • Short term memory loss
  • Semantic memory loss
  • Inability to categorise objects
  • Difficulty identifying and verbalising
  • Visuo-spatial neglect
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11
Q

What signs are seen in parietal lobe impairment?

A
  • Anomia (cannot identify objects
  • Dysgraphia
  • Agnosia (body parts)
  • L-R disorientation
  • Dyscalculia
  • Apraxia
  • Visuo-spatial neglect
  • Loss of tactile perception
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12
Q

What is Gerstamnn’s syndrome?

A
  • Dominant parietal lobe lesion
  • Agnosia (finger
  • Agraphia
  • Acalculia
  • L-R disorientation
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13
Q

What signs are seen in frontal lobe impairment?

A
  • Difficulty sequencing
  • Loss of spontaneity
  • Loss of cognitive flexibility
  • Difficulty conceptialising
  • Poor concentration
  • Poor impulse control
  • Difficulty problem solving
  • Difficulty expressing language (Broca’s aphasia)
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14
Q

What is the scoring for MOCA?

A
  • Score out of 30
  • Takes 10-15 minutes
  • Score less than 26 gives high sensitivity but low specificity
  • Less than 26 - MCI
  • Less than 17 - Dementia
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15
Q

How would you assess function?

A
  • Functional activities questionnaire
  • Activities of daily living assessment
  • Bristol functional assessment
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16
Q

How would you assess psychological symptoms?

A

Neuropsychiatric inventory (NPI)

17
Q

How would you assess caregiver strain?

A

MBRC caregiver strain instrument

18
Q

What medications are given to manage dementia?

A

Three main types of medication to manage Alzheimer’s and Lewy Body dementia:

  • Cholinstereterase inhibitors (donepezil, galantamine)
  • Butyrycholinesterase and acetylcholinesterase inhibitors (rivastigmine)
  • NMDA receptor blockers (memantine)

The role of medication is to slow progress of disease

19
Q

What are the non-cognitive symptoms of dementia?

A
  • Hallucinations
  • Delusions
  • Anxiety
  • Marked agitation
  • Aggressive behaviour

These can also be pharmacologically managed

20
Q

How should dementia be managed?

A
  • Explain diagnosis and give written information
  • Identify patient wishes for future care whilst they still have capacity
  • Monitor physical and mental health and function
  • Discuss driving

Treatments:

  • Non-pharmacological interventions(structured group cognitive stimulation programmes
  • Pharmacological interventions (acetylcholinesterase inhibitors)

Ask about behavioural and psychological symptoms of dementia (BPSD)

  • Treat reversible causes
  • Consider non-pharmalcoogical intervention (aromatherapy, exercise, animal-assisted therapy)

Antipsychotics should not be given

Home occupational therapy and physiotherapy interventions
- Assessment of home, safety, neglect risk

21
Q

What investigations need to be completed before starting pharmacological treatment of a patient with dementia?

A

Investigations

  • ECG - Assess heart rate, presence of conduction abnormalities and QTc interval
    Cholinesterase inhibitors are contraindicated for patients with bradykinesia, Left Bundle Branch Block and a prolonged QTc interval
  • U&E – Memantine can cause acute renal failure

BNF: cholinesterase inhibitors should be used with caution in patients with a history of a gastric ulcers and seizures. Mind other medications that can increase ulcer or seizure risk

Side effects:

  • Diarrhoea
  • Dizziness
  • Anorexia
  • Weight loss
  • Nausea
  • Vomiting
  • Insomnia.
22
Q

What psychological treatments are available for BPSD?

A
  • Cognitive stimulation therapy
  • CBT
  • Reminiscience therapy
  • Aromatherapy
  • Sensory stimulation
  • Music therapy
23
Q

What is dementia?

A

A collection of symptoms
- Chronic disorder or mental processes caused by brain disease/injury

Symptoms:

  • Memory disorders
  • Personality changes
  • Impaired reasoning
24
Q

What are the risk factors for developing dementia?

A
  • Age
  • Gender (female AD, male VD)
  • Ethnicity (South Asian VD, African AD)
  • Depression in mid-life or later life
  • Head injuries (Parkinson’s dementia)
  • Lifestyle factors (smoking, alcohol, exercise, education)
25
Q

What constitutes mild dementia?

A
  • Memory loss interferes with daily activities
  • Difficulty learning and registering new information
  • MMSE 20-24
  • Able to manage independent life
26
Q

What constitutes moderate dementia?

A
  • Memory loss representing a serious handicap to independent living
  • Only very familiar material is retained
  • New information is retained occasionally/briefly
  • MMSE 10-21
  • Need help with ADLs
27
Q

What constitutes severe dementia?

A
  • Memory loss causes complete inability to retain information
  • Only fragments of previously learnt information retain
  • Unable to learn new infomation
  • MMSE <10
  • Completely dependent for ADLs
28
Q

What are the criteria for a diagnosis of dementia?

A
  • Memory loss
  • Decline in emotional control or motivation
  • Emotional lability
  • Irritability
  • Apathy
  • Coarsening of social behaviour

Exclusion criteria:

  • Absence of delirium
  • Symptoms present for at least 6 months
  • Should be irreversible
29
Q

How does Alzheimer’s dementia present?

A
  • Aphasia
  • Agnosia
  • Apraxia
  • Decreased motivation and drive
  • Early or late onset
  • Slow progression

Investigations:
- CT/MRI brain - cerebral atrophy