Ipsilateral hemiplegia caused by right internal capsule and thalamic hemorrhage

Hosokawa, Shinichi; Tsuji, Sadatoshi; Uozumi, Tohru; Matsunaga, Kimio; Toda, Kazuo; Ota, Shin

doi:10.1212/wnl.46.4.1146

Cited by 38 publications

(26 citation statements)

References 4 publications

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“…Each patient had various processes related to the motor deficit. The most common causes were related to ipsilateral projection from the primary motor cortex [13], congenitally uncrossed pyramidal tracts [14], lesions that affected the secondary motor area in the precentral insular cortex which bilaterally innervate the face and limbs, or cortical reorganization within the motor areas of the unaffected hemisphere [15]. …”

Section: Discussionmentioning

confidence: 99%

Existence of Ipsilateral Hemiparesis in Ischemic and Hemorrhagic Stroke: Two Case Reports and Review of the Literature

Saada

Antonios²

2013

Eur Neurol

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Supratentorial stroke presenting as contralateral hemiparesis is predominantly related to contralateral projection of the corticospinal tract. While most corticospinal fibers decussate at the level of the medulla, some tracts continue descending as ipsilateral ventral corticospinal fibers. In this systematic review of the literature and 2 case reports specifically seen in our institute, we describe the presence of ipsilateral hemiparesis in ischemic and hemorrhagic stroke patients. We compiled available information about the existence of uncrossed corticospinal tracts and/or the presence of bilateral operating motor cortical networks. There was an association in patients with congenital uncrossed corticospinal tracts and posterior fossa malformations. There was also a high correlation of ipsilateral hemiparesis in patients with remote infarction. A previous stroke was seen in 50% of the patients, all except for 1 case were ischemic in nature. Patients with previous infarcts do demonstrate an adaptive compensation for damaged or disconnected regions of an injured area. This emphasizes the need to consider the investigation for previous infarctions or underlying genetic structural defects by using certain imaging modality.

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Section: Discussionmentioning

confidence: 99%

Existence of Ipsilateral Hemiparesis in Ischemic and Hemorrhagic Stroke: Two Case Reports and Review of the Literature

Saada

Antonios²

2013

Eur Neurol

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“…gaze were reported to have right hemipareses after intracranial hemorrhages on the right [10,11], but these individuals were not genotyped. More recently, a single genotyped individual had diffusion tensor MRI that vividly illustrated ipsilateral anatomic projection of the ascending medial lemniscal and descending corticospinal pathways, but this individual had no clinical abnormalities beyond HGPPS.…”

Section: Discussionmentioning

confidence: 99%

Five new consanguineous families with horizontal gaze palsy and progressive scoliosis and novel ROBO3 mutations

Abu-Amero

Dhalaan

Zayed

et al. 2009

Journal of the Neurological Sciences

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“…Another possibility is that a small number of subjects with relatively large hemispheric motor asymmetry (many ipsilateral fibers to the left hand) may escape selectively from left hemiparesis after cerebral infarction in the right hemisphere. Because there is a report of a patient who exhibited ipsilateral hemiplegia after hemorrhagic stroke (in the right hemisphere), 28 there might be considerable variability in the amount of uncrossed motor fibers among individuals. Further characterization of ipsilateral motor pathways remains to be explored.…”

Section: Discussionmentioning

confidence: 99%

Near-Infrared Spectroscopic Topography as a Tool to Monitor Motor Reorganization After Hemiparetic Stroke

Kato

Izumiyama

Koizumi

et al. 2002

Stroke

108

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Background and Purpose-Motor functional recovery from stroke can occur, but the mechanisms underlying this restorative process remain to be elucidated. We used near-infrared spectroscopic (NIRS) topography in comparison with functional MRI (fMRI) to evaluate the compensatory motor activation of cortical regions in patients who recovered from hemiparesis after cortical cerebral infarction. Methods-We examined 6 right-handed patients who suffered cerebral infarction of the middle cerebral artery territory with minimal or mild residual contralateral hemiparesis (4 men and 2 women, 59 to 79 years old, all had left hemiparesis). Both fMRI and NIRS were studied during a hand movement task at chronic stages. Five right-handed, normal subjects (3 men and 2 women, 44 to 81 years old) served as controls. Results-fMRI and NIRS detected very similar cerebral cortical activation, although NIRS detected only superficial activation. The spatial resolution of NIRS was less than that of fMRI, but NIRS provided a dynamic profile of activation. Normal subjects activated predominantly the contralateral primary sensorimotor cortex and supplementary motor areas during each hand movement. All the stroke patients exhibited the normal activation pattern during normal hand movement. On affected hand movement, the stroke patients showed extended activation not only in the contralateral motor cortex but also in the ipsilateral motor cortex (primary motor cortex and supplementary motor areas). Conclusions-Both fMRI and NIRS studies provided evidence for the contribution of ipsilateral motor cortical compensation or reorganization to the recovery from poststroke hemiparesis. The result demonstrated that NIRS was a unique tool to monitor poststroke alterations in cortical motor functions.

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Ipsilateral hemiplegia caused by right internal capsule and thalamic hemorrhage

Cited by 38 publications

References 4 publications

Existence of Ipsilateral Hemiparesis in Ischemic and Hemorrhagic Stroke: Two Case Reports and Review of the Literature

Existence of Ipsilateral Hemiparesis in Ischemic and Hemorrhagic Stroke: Two Case Reports and Review of the Literature

Five new consanguineous families with horizontal gaze palsy and progressive scoliosis and novel ROBO3 mutations

Near-Infrared Spectroscopic Topography as a Tool to Monitor Motor Reorganization After Hemiparetic Stroke

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