Aggravation of poststroke sensory symptoms after a second stroke on the opposite side.
The role of the ipsilateral hemisphere in sensory functions remains unknown. The author describes 5 patients who presented with hemisensory symptoms due to unilateral strokes occurring in the left putamen, left thalamus, right putamen, right lateral medulla and left thalamic-internal capsular area, respectively. Sensory symptoms had gradually improved or remained stable after the initial events. However, when another stroke occurred on the contralateral thalamic-occipital, frontoparietal, lateral medulla, temporoparietal and pontine areas, respectively, previous sensory symptoms significantly worsened and became painful. These observations suggest that ipsilateral sensory pathways play a role in the modulation of sensory functions.
Kim
J S
JS
Department of Neurology, University of Ulsan, Asan Medical Center, Seoul, Korea. jongskim@www.amc.seoul.kr
D000328:Adult; D000368:Aged; D001921:Brain / Q000473:pathology* / Q000503:physiopathology; D004292:Dominance, Cerebral; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009415:Nerve Net / Q000473:pathology / Q000503:physiopathology; D010146:Pain / Q000188:drug therapy / Q000209:etiology*; D010291:Paresis / Q000209:etiology* / Q000503:physiopathology; D010292:Paresthesia / Q000209:etiology* / Q000503:physiopathology; D012008:Recurrence; D020521:Stroke / Q000150:complications* / Q000473:pathology / Q000503:physiopathology*