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J Neurosci Rural Pract. 2019 Jan-Mar;10(1):145-147. doi: 10.4103/jnrp.jnrp_258_18.

Wake-Up Sleepyhead: Unilateral Diencephalic Stroke Presenting with Excessive Sleepiness.

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Department of Neurology, MS Ramaiah Medical College, Bengaluru, Karnataka, India.


Altered sleep architecture and stroke share a reciprocal relationship. More than half of the stroke patients display sleep abnormalities including hypersomnia, insomnia, parasomnia, periodic limb movements, or sleep-disordered breathing. Conversely, one of the major causes of severe organic hypersomnia is acute brainstem strokes, involving thalamic infarctions, which may be reversible over 6-12 months. Here, we report a patient with increased lethargy and drowsiness who was diagnosed to have a right thalamic and hypothalamic ischemic stroke.


Drowsiness with stroke; paramedian thalamic stroke; thalamic infarction; thalamic stroke

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