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Strokes restricted to the insular cortex
Cereda, C.. - : Université de Lausanne, Faculté de biologie et médecine, 2004
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Strokes restricted to the insular cortex.
In: Neurology, vol. 59, no. 12, pp. 1950-1955 (2002)
Abstract: OBJECTIVE: To characterize clinically acute insular strokes from four patients with a first ever acute stroke restricted to the insula on MRI. METHODS: The authors studied the clinical presentation of four patients with a first ever acute stroke restricted to the insula on MRI. RESULTS: The authors found five main groups of clinical presentations: 1) somatosensory deficits in three patients with posterior insular stroke (two with a transient pseudothalamic sensory syndrome, one with partial distribution); 2) gustatory disorder in a patient with left posterior insular infarct; 3) vestibular-like syndrome, with dizziness, gait instability, and tendency to fall, but no nystagmus, in three patients with posterior insular strokes; 4) cardiovascular disturbances, consisting of hypertensive episodes in a patient with a right posterior insular infarct; and 5) neuropsychological disorders, including aphasia (left posterior insula), dysarthria, and transient somatoparaphrenia (right posterior insula). CONCLUSION: Strokes restricted to the posterior insula may present with pseudothalamic sensory and vestibular-like syndromes as prominent clinical manifestations, but also dysarthria and aphasia (in left lesions), somatoparaphrenia (right lesions) and gustatory dysfunction and blood pressure with hypertensive episodes in right lesions; we did not find acute dysphagia reported in anterior, insular strokes.
Keyword: Aged; Cardiovascular Diseases/etiology; Cerebral Cortex/pathology; Cerebral Cortex/physiopathology; Electrocardiography; Female; Follow-Up Studies; Hemodynamics; Humans; Magnetic Resonance Imaging; Male; Middle Aged; Nervous System Diseases/etiology; Registries; Somatosensory Disorders/etiology; Stroke/complications; Stroke/pathology; Taste Disorders/etiology; Tomography; Vestibular Diseases/etiology; X-Ray Computed
URL: https://serval.unil.ch/notice/serval:BIB_2E92476F13E4
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