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All patients with posterolateral thalamic hemorrhage had severe sensorimotor deficit.Neuropsychological disturbances in patients with posterolateral thalamic hemorrhage were prominent,with primarily transcortical aphasia in those with left-sided lesions and hemineglect and anosognosia in those with right-sided lesions.Several variants of vertical gaze dysfunction,skew ocular deviation,gaze preference toward the site of the lesion,and miotic pupils were frequent in posterolateral thalamic hemorrhage,particularly in the large type.Patients with small and large anterolateral thalamic hemorrhage were characterized by severe motor and sensory deficits;language and oculomotor disturbances were also observed, although less frequently than in posterolateral hemorrhage.Sensorimotor deficits were observed in patients with medial thalamic hemorrhage (moderate in small hemorrhages and severe in large hemorrhages because of involvement of the adjacent internal capsule).Language disturbances in patients with left-sided lesions and neglect in patients with right-sided lesions were seen only in large medial thalamic hemorrhage.Dorsal thalamic hemorrhage was rare and characterized by mild and transient sensorimotor disturbances.Among patients with dorsal thalamic hemorrhages,only those with large lesions had oculomotor and neuropsychological disturbances.We concluded that despite clinical similarity among the four types of thalamic hemorrhage,there was some discrepancy in the clinical features of small and large thalamic hemorrhages.The most important predictors of death were initial consciousness,nuchal rigidity,maximum size,volume and ventricular extension of hemorrhage,and occurrence of hydrocephalus. |
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anosognosia
aphasia
aphasia,global
aphasia,transcortical
CAT scan
CAT scan,abnormal
cerebrovascular accident
conjugate gaze,forced
downward gaze,paralysis of
eye movement,disorders of
gaze palsy,vertical
headache
hemorrhage,thalamic
hydrocephalus
intracerebral hemorrhage
intracerebral hemorrhage,location of
intracerebral hemorrhage,volume
intraventricular hemorrhage
miosis
mortality
nausea and vomiting
neglect
ocular motility,disorders of
prognosis
pupil,abnormality in neurologic disorders
review article
sensorimotor stroke
skew deviation
thalamic aphasia
upgaze,paralysis of
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