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.
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.
Authors: Clare Kelly; Roberto Toro; Adriana Di Martino; Christine L Cox; Pierre Bellec; F Xavier Castellanos; Michael P Milham Journal: Neuroimage Date: 2012-03-13 Impact factor: 6.556
Authors: Amir Abdolahi; Geoffrey C Williams; Curtis G Benesch; Henry Z Wang; Eric M Spitzer; Bryan E Scott; Robert C Block; Edwin van Wijngaarden Journal: Addict Behav Date: 2015-07-06 Impact factor: 3.913
Authors: Ruth Ruscheweyh; Michael Deppe; Hubertus Lohmann; Heike Wersching; Catharina Korsukewitz; Thomas Duning; Saskia Bluhm; Christoph Stehling; Simon S Keller; Stefan Knecht Journal: Hum Brain Mapp Date: 2012-07-19 Impact factor: 5.038
Authors: Eun Kyoung Kang; Hae Min Sohn; Moon-Ku Han; Won Kim; Tai Ryoon Han; Nam-Jong Paik Journal: J Korean Med Sci Date: 2009-12-26 Impact factor: 2.153