fatigue after stroke: what research tell us
TRANSCRIPT
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Workshops 1b:
Fatigue after stroke:
What research tell us
Professor Gillian Mead
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Blog June 2015
Post-stroke fatigue must be given the increased
investigation and wider public awareness it
urgently needs.
Diagnosis and treatment of this condition
desperately requires improvement for the
thousands of stroke survivors that struggle to
cope with fatigue day-to-day.
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Outline
1.Describe fatigue and how it appears in stroke
survivors
2.What the research tells us about fatigue after
stroke
3.To highlight what we don’t know
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What is fatigue?
Feeling of weariness,
unrelated to exertion, which
is not improved by rest.
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I never felt this tired...
Never felt tired like this
before.
I used to whizz round and
not even think about it, but
now it’s an effort.
Thinking about what I’m
actually going to say and
what I’m actually saying,
that’s what makes me tired
as well.
I have to keep stopping. Really
short spurts. Whereas you
could spend all day, now I’ll
perhaps do an hour and then
I’ll stop and then maybe start
again a bit later.
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Key points
• Common (23%-75%)
• In top ten priority areas (stroke survivors)
• Disabling
• Interferes with rehabilitation
• Affects return to work
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Workshop
1.To describe fatigue and how it appears
in stroke survivors
2.To outline what we know about
fatigue after stroke from research
3. To highlight what we don’t know
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There is some research
Fatigue and stroke: 200
Stroke and depression: 1227
Fatigue and cancer: 1931
Scientific papers
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Areas of research
1. What happens to fatigue over
time
2. Stroke lesion
3. Mood
4. Cognitive
5. Physical inactivity
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Fatigue probably persists for
months, at least
• Review of 9 studies that assessed fatigue at
more than one time point (from stroke onset to 3
years)
• Almost 1000 patients
• Frequency of fatigue decreased in seven studies
and increased in two studies
Duncan et al, J Psychosomatic Res 2012
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Areas of research
1. Time course of fatigue
2. Stroke lesion
3. Mood
4. Cognitive
5. Physical inactivity
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Type and site of stroke lesion
• No link between type of
stroke (haemorrhage or
ischaemic)
• No link with location of
stroke lesion
• No link with ‘background’
brain changes
• Standardised CT rating scores to determine associations with– White matter lesions
– Site of lesion
– Atrophy
• 90 patients: no clear association of neuroimaging features and fatigue at 1 month (Kutlubaev et al, Cerebrovascular Diseases Extra
2013)
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Areas of research
1. Time course of fatigue
2. Stroke lesion
3. Mood
4. Cognitive
5. Physical inactivity
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Fatigue, depression and anxiety
Fatigue
anxietydepression
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Areas of research
1. Time course of fatigue
2. Stroke lesion
3. Mood
4. Cognitive
5. Physical inactivity
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Associations with cognition
• 4 studies recruiting 300 patients
• The two larger studies both showed association
between fatigue and poorer attention and
processing speed
• But it’s not clear what this means…
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Areas of research
1. Time course of fatigue
2. Stroke lesion
3. Mood
4. Cognitive
5. Physical inactivity
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Is fatigue related to being less fit
and active?
• 136 patients with stroke
• Fatigue, step count and
fitness measured at
–1 month
–6 months
–12 months after stroke
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Fatigue, activity and fitness
Fatigue linked with lower step count
Fatigue not linked with fitness
So, increasing activity might improve fatigue
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Pre-strokeAcute Stroke
Unit
Rehabilitation
UnitDischarge
Pre-stroke fatigue
Trigger for fatigueStroke lesionInflammation?
Pain?Poor sleep
Physical inactivity
Perpetuating factorsPhysical inactivityLow mood, anxiety
Poor sleep
Perpetuating factorsPhysical inactivity
Low moodAnxiety
Poor sleep
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Workshop
1.To describe fatigue and how it appears
in stroke survivors
2.To outline what we know about fatigue
after stroke from research
3. To highlight what we don’t know
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Treatment of fatigue after stroke
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What I do
• Check medications (some may cause fatigue)
• Check for depression or anxiety
• Check for medical causes e.g. anaemia
• Advise
–Gentle increase in physical activity
–Balance exercise with rest
–Sleep ‘hygiene’
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Exercise after stroke
Collaboration between Stroke Association and
Later Life Training
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POSITIF trial
• Starts 2018
• Post-stroke fatigue
• 6 sessions with a nurse on telephone or
information about post-stroke fatigue
–Sessions aim to increase activity, challenge
beliefs about fatigue and improve sleep
• Recruitment via website
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Thanks to
• Stroke survivors who
participated in
research
• Research
collaborators
• Research funders