Magnetic transcranial stimulation in non-haemorrhagic sylvian strokes: interest of facilitation for early functional prognosis

Catano, Antonio; Houa, Myriam; Caroyer, Jean-Marc; Ducarne, H.; Noël, Pierre

doi:10.1016/0924-980x(95)00127-7

Cited by 69 publications

(22 citation statements)

References 15 publications

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“…Care must be taken in patients whose clinical picture strictly mimics a hemispheric stroke. Indeed, some studies showed that near-normal MEPs may be present in the paretic (not plegic) muscles of a minority of patients with acute hemispheric ischemia [4,5,11,23,25]. Particularly, in those patients whose lesion affects the afferents to primary motor cortex, and in whom motor neglect is a prominent feature [6].…”

Section: Discussionmentioning

confidence: 98%

Diagnosis of psychogenic paralysis: The role of motor evoked potentials

Cantello

Boccagni

Comi

et al. 2001

Journal of Neurology

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Section: Discussionmentioning

confidence: 98%

Diagnosis of psychogenic paralysis: The role of motor evoked potentials

Cantello

Boccagni

Comi

et al. 2001

Journal of Neurology

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“…Heald et al 2 concluded that the patients with absent responses had a high risk of poor functional recovery after 1 year, even if some patients reached a functionally useful manual dexterity. In the study of Catano et al, 3 the patients who had no response generally recovered poorly, but there were exceptions. More recently, similar observations have been made by Escudero et al 4 However, in all these studies, the group with absent MEPs included patients with a variable degree of motor deficit.…”

Section: Discussionmentioning

confidence: 99%

Absence of Response to Early Transcranial Magnetic Stimulation in Ischemic Stroke Patients

Pennisi

Rapisarda

Bella

et al. 1999

Stroke

130

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Background and Purpose-Transcranial magnetic stimulation (TMS) has been proposed as a prognostic tool in stroke patients. Most of the previous studies agree in considering the presence of motor-evoked potentials (MEPs) in the first days after a stroke as an indicator of good outcome. In the present study, we have assessed the prognostic value of the absence of response to early TMS on hand motor recovery in stroke patients with complete hand palsy at onset due to ischemia in the area of the middle cerebral artery. Methods-Fifteen patients submitted to TMS within 48 hours of stroke onset (defined as day 1) and again after 1 year.They were also evaluated clinically on day 1 by a scale derived from the Medical Research Council (MRC) and by the National Institutes of Health (NIH) stroke scale; they were reevaluated by the same scales and by Barthel Index on day 365. Results-On day 1, all the patients had complete hand palsy and no response to TMS; their NIH scores showed great variability. After 1 year, 6 of 15 patients regained small and prolonged MEPs, together with a very poor and not functionally useful motor recovery. NIH scores were significantly improved. Barthel Index scores showed large interindividual differences and were not correlated with MRC scores. Conclusions-We conclude that in patients with complete hand palsy, the absence of response to TMS in the first hours is predictive of absent or very poor, not useful, hand motor recovery. (Stroke. 1999;30:2666-2670.)

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“…This increased contralesional activity is associated with a decrease of excitability and of CS output intensity from the ipsilesional cortex to the impaired hand (Alagona et al, 2001; Carey et al, 2006; Catano et al, 1995, 1996; Di Lazzaro et al, 2008; Heald et al, 1993; Jaillard et al, 2005; Liepert et al, 2000b; Manganotti et al, 2002; Marshall et al, 2000; Rapisarda et al, 1996). In animal studies, an acute increase of somatosensory evoked potentials in the contralesional cortex has also been reported in the hours following lesion (Hossmann et al, 1985; Meyer et al, 1985; Sakatani et al, 1990).…”

Section: The Role Of the Contralesional Hemisphere In Recovery After mentioning

confidence: 99%

Shaping plasticity to enhance recovery after injury

Dancause

Nudo

2011

Progress in Brain Research

171

127

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The past decade of neuroscience research has provided considerable evidence that the adult brain can undergo substantial reorganization following injury. For example, following an ischemic lesion, such as occurs following a stroke, there is a cascade of molecular, genetic, physiological and anatomical events that allows the remaining structures in the brain to reorganize. Often, these events are associated with recovery, suggesting that they contribute to it. Indeed, the term plasticity in stroke research has had a positive connotation historically. But more recently, efforts have been made to differentiate beneficial from detrimental changes. These notions are timely now that neurorehabilitative research is developing novel treatments to modulate, increase, or inhibit plasticity in targeted brain regions. We will review basic principles of plasticity and some of the new and exciting approaches that are currently being investigated to shape plasticity following injury in the central nervous system.

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Magnetic transcranial stimulation in non-haemorrhagic sylvian strokes: interest of facilitation for early functional prognosis

Cited by 69 publications

References 15 publications

Diagnosis of psychogenic paralysis: The role of motor evoked potentials

Diagnosis of psychogenic paralysis: The role of motor evoked potentials

Absence of Response to Early Transcranial Magnetic Stimulation in Ischemic Stroke Patients

Shaping plasticity to enhance recovery after injury

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