3

As per this article, https://www.ncbi.nlm.nih.gov/pubmed/12499712 insomnia is a common complaint after ischemic stroke. Why does ischemic stroke leads to insomnia ?

3

Sometimes, stroke may be associated with insomnia, not because of the brain tissue damage, but because of how it affects someone's life.

Insomnia is a likely long-term side effect of stroke, study finds (ScienceDaily, 2018):

Importantly researchers found that although sleep efficiency was reduced in patients, total sleep time between the groups was similar, suggesting that lesions in the brains' centres for sleep-wake regulation are unlikely to cause the insomnia. Rather researchers believe that sleep problems experienced by stroke patients are due to a number of contributory factors, such as greater psychological strain, pain and discomfort as well as reduced levels of physical activity.

The article What happens to sleep after a stroke? (Medscape) describes how different stroke locations can result in different types of insomnia:

  • A pontine stroke may be expected to affect REM sleep.
  • Particular lesion sites have been reported to cause narcolepsy, destruction of normal circadian sleep/wake patterns, and regional loss. of sleep spindles, but also loss of dream life, a peculiar bed-prone behavioral stereotypy, and visual hallucinations.
  • Subcortical strokes affecting basal ganglia may be more associated with excessive daytime sleepiness.
  • Immediately after a hemispheric stroke, REM sleep abnormalities are more common. Over a period of weeks after a hemispheric stroke, it is common to observe reduction in total sleep time, sleep efficiency, and sleep stages.
  • In one study of hemispheric strokes, one third of stroke patients slept more.
4
  • 1
    Interesting information, but it doesn't answer the question, which is why? – Carey Gregory Aug 28 '19 at 14:52
  • This is exactly what I answered. If you don't think so, you may want to say, what do you think is missing. – Jan Aug 28 '19 at 15:20
  • Psychological strain, pain and discomfort, and reduced levels of activity are features of many illnesses that aren't known to cause insomnia. I'm not criticizing your answer. I'm simply saying I think the answer is probably "we don't know why." – Carey Gregory Aug 28 '19 at 15:23
  • If you ask me, all those things can very well cause insomnia, regardless of the cause, including stroke. Anyway, I'm not sure when did you see my answer; it has two parts - the second part shows that they actually found few locations that can explain why exactly a certain damage causes insomnia. My point is that stroke can be associated with insomnia due to 1) patients' changed life or 2) directly due to brain damage. – Jan Aug 28 '19 at 15:32

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.