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Neuronal post-stroke plasticity in the adult

Paolo M Rossini, Gloria Dal Forno
2004 Restorative Neurology and Neuroscience  
stages after a brain tissue lesion has occurred and stabilized.  ...  Better understanding of these mechanisms can provide neurorehabilitation with powerful tools in designing and implementing new therapeutic approaches to stroke patients both in the acute and the chronic  ...  Structures normally not involved in a specific task, such as sensory cortex and secondary motor areas, are activated along with the displacement of primary motor peak activation both in subcortical [25  ... 
pmid:15502265 fatcat:ouhpkgax2vgkjgl64vregcgbfe

Upper Limb Recovery After Stroke Is Associated With Ipsilesional Primary Motor Cortical Activity: A Meta-Analysis

I. Favre, T. A. Zeffiro, O. Detante, A. Krainik, M. Hommel, A. Jaillard
2014 Stroke  
and Purpose-Although neuroimaging studies have revealed specific patterns of reorganization in the sensorimotor control network after stroke, their role in recovery remains unsettled.  ...  Results-When compared with healthy controls, patients showed higher activation likelihood estimation values in contralesional primary motor soon after stroke that abated with time, but were not related  ...  Displacement of primary sensorimotor cortex activation after subcortical stroke: a longitudinal PET study with clinical correlation. Neuroimage. 2003;19:1650-1654. 24.  ... 
doi:10.1161/strokeaha.113.003168 pmid:24525953 fatcat:44whwktfdnbura6aek2cnneqeq

Neuroimaging in Stroke Recovery: A Position Paper from the First International Workshop on Neuroimaging and Stroke Recovery

2004 Cerebrovascular Diseases  
Longitudinal studies employing passive rather than active movement are better suited to study patients with no residual movement in the early stages after stroke.  ...  These issues will require further empirical study. The Clinical Relevance of Brain Activation Patterns after Stroke: A Role for Transcranial Magnetic Stimulation?  ... 
doi:10.1159/000080293 pmid:15484327 pmcid:PMC3718532 fatcat:yitn2ruwwzbs5bjqoflpnisgim

Brain Connectivity Plasticity in the Motor Network after Ischemic Stroke

Lin Jiang, Huijuan Xu, Chunshui Yu
2013 Neural Plasticity  
The motor function is controlled by the motor system that comprises a series of cortical and subcortical areas interacting via anatomical connections.  ...  Here, we review recent studies employing models of anatomical, functional, and effective connectivity on neuroimaging data to investigate how ischemic stroke influences the connectivity of motor areas  ...  Acknowledgments This study was supported by the National Basic Research Program of China (973 program, 2011CB707804), the Natural Science Foundation of China (81271564), and the Natural Science Foundation  ... 
doi:10.1155/2013/924192 pmid:23738150 pmcid:PMC3655657 fatcat:sbptb37hwvf47bb3dosfj3tsn4

Non Invasive Neuromodulation in Motor Recovery after Stroke: State of the Art, Open Questions and Future Perspectives

Raffaella Chieffo MD Giancarlo Comi MD
2013 Journal of Neurology & Neurophysiology  
Non invasive brain stimulation (NIBS) techniques have been recognized as a promising intervention to improve motor recovery after stroke.  ...  We provide an overview of the rationale, open questions and future perspectives for NIBS after stroke.  ...  Acknowledgments Partially supported by the Joint Italian-Israeli laboratory San Raffaele-Weizmann (Italian Ministry of Foreign Affairs).  ... 
doi:10.4172/2155-9562.1000168 fatcat:ricetd6wlvehlkpezoy3feorfq

Multimodal lesion network mapping to predict sensorimotor behavior in stroke patients [article]

Antonio Jimenez-Marin, Nele De Bruyn, Jolien Gooijers, Alberto Llera, Sarah Meyer, Kaat Alaerts, Geert Verheyden, Stephan P Swinnen, Jesus M Cortes
2021 bioRxiv   pre-print
We applied the multimodal LNM to a cohort of 54 stroke patients with the aim of predicting sensorimotor behavior, as assessed through a combination of motor and sensory tests.  ...  Test scores were predicted using a Canonical Correlation Analysis with multimodal brain maps as independent variables, and cross-validation strategies were employed to overcome overfitting.  ...  the primary motor cortex and primary sensory cortex).  ... 
doi:10.1101/2021.12.23.473973 fatcat:auxezja455gcnbtolan4ii43k4

Delta Power Is Higher and More Symmetrical in Ischemic Stroke Patients with Cortical Involvement

Chiara Fanciullacci, Federica Bertolucci, Giuseppe Lamola, Alessandro Panarese, Fiorenzo Artoni, Silvestro Micera, Bruno Rossi, Carmelo Chisari
2017 Frontiers in Human Neuroscience  
Interestingly, in subcortical stroke patient brain activity is related with the clinical function. qEEG measures can be explicative of brain activity related to lesion location and they could allow precise  ...  Here, we tested whether cortical involvement could imply differences in band-specific activity and brain symmetry in post stroke patients with cortico-subcortical and subcortical strokes.  ...  The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.  ... 
doi:10.3389/fnhum.2017.00385 pmid:28804453 pmcid:PMC5532374 fatcat:p36nxqpzsjdaxlko4cp5zldfoe

Reorganization of Brain Function During Force Production After Stroke

Kristen J. Kokotilo, Janice J. Eng, Lara A. Boyd
2009 Journal of Neurologic Physical Therapy  
Furthermore, this effect may be amplified even further in subjects with less paretic arm usage, as increased activation in motor areas occurs in participants with less arm use after stroke.  ...  The following chapters (chapters 3 and 4) applied functional magnetic resonance imaging (fMRI) to examine the neural correlates of force production and modulation after stroke.  ...  Neural correlates of motor recovery after stroke: a longitudinal fMRI study. Brain. 126, 2476-2496. Ward, N. S., Brown, M. M., Thompson, A. J., and Frackowiak, R. S. (2003b).  ... 
doi:10.1097/npt.0b013e31819824f0 pmid:19265770 pmcid:PMC3186814 fatcat:uxsgu7lkhvhyhbb7eg4penesty

Stroke Research in the Modern Era: Images versus Dogmas

Jean-Claude Baron
2005 Cerebrovascular Diseases  
Which patients are likely to benefi t, Abstract Recovery of function following ischaemic stroke is a fascinating clinical observation.  ...  They also allow us to map resting synaptic activity and activation of neural networks during behaviour, opening a unique window on reorganisation, plasticity and secondary degeneration.  ...  Lassen (1927Lassen ( -1996 This work would not have been possible without the contribution from a large number of collaborators whom I warmly thank collectively on this occasion.  ... 
doi:10.1159/000087199 pmid:16088110 fatcat:5epb6qevtfa2xgngjclap7fg6i

2013 Canadian Stroke Congress Abstracts

2013 Stroke  
In a pooled analysis of 6 acute stroke patients (median time MRI to PET: 55 minutes; patients imaged within 6 hours after stroke) the best relative penumbral flow threshold was 0,53 on rCBF-CTP; 0,49 on  ...  In a region of interest-based approach, the performance of pCT was assessed using quantitative CBF-PET maps with respect to penumbral flow.  ...  This study reviewed the use of two caregiver outcome measurement tools in a community-based rehabilitation setting post stroke.  ... 
doi:10.1161/01.str.0000438095.11293.72 fatcat:wuapkkr73zcvbga266lrkjwdwy

Nuclear Medicine in Cerebrovascular Disease

David H. Lewis, Lauren K. Toney, Jean-Claude Baron
2012 Seminars in nuclear medicine  
Finally, Nuclear Medicine investigations of stroke recovery and cerebral plasticity appear to indicate that enhanced activity of preexisting networks, rather than substitution of function, represents the  ...  Many of the pathophysiologic processes and consequences that follow stroke, including completed infarct core, adjacent penumbra, and diaschisis, have been investigated with Nuclear Medicine, and stroke  ...  Finally, several studies have reported a displacement of the activation peak within SM1, inferiorly 210 and posteriorly, 211,212 after subcortical stroke.  ... 
doi:10.1053/j.semnuclmed.2012.06.002 pmid:23026361 fatcat:nopdgqbvnvejlac5c4xw376vfa

2014 Canadian Stroke Congress Abstracts

2014 Stroke  
Methods: Data is from the PRove-IT study, a prospective imaging study in patients with acute ischemic stroke. Presence of M1-MCA occlusions was confirmed on baseline CT-angio.  ...  Results: Results from the first 79 respondents indicate a high likelihood of treatment with tPA (mean likelihood = 90.3%) in response to a standardized clinical case depicting a patient with a left MCA  ...  Patients and families should be provided with information, support and access to services throughout transitions to the community following a stroke to optimize the return to life roles and activities"  ... 
doi:10.1161/ fatcat:hfhtgxtxazdrzg2emnjeehsvlq

Oral Presentations

2000 Stroke  
Objective: The aim of our study was to estimate the correlation between early CT findings and outcome of patients with acute stroke.  ...  Methods: In 10 patients (7 male, 3 female, 52-76 years) FMZ and H215O-PET studies were performed 2-12 h after onset of acute ischemic hemispheric stroke.  ...  We evaluated 4 patients within 24 hours after onset of stroke, of whom one underwent emergency carotid endarterectomy because of insufficient collateral flow.  ... 
doi:10.1161/01.str.31.1.275 fatcat:kzhua4mnzjcp3pqzu4rdidt3qu

Imaging correlates of motor recovery from cerebral infarction and their physiological significance in well-recovered patients

Dinesh G. Nair, Siobhan Hutchinson, Felipe Fregni, Michael Alexander, Alvaro Pascual-Leone, Gottfried Schlaug
2007 NeuroImage  
Wrist movements of the recovered arm resulted in significantly greater activation of the contralateral (lesional) and ipsilateral (contralesional) primary sensorimotor cortex (SM1), while comparing patients  ...  We studied motor representation in well-recovered stroke patients.  ...  We thank our patients for their commitment to the study and Astrid von Bueren Jarchow, Anders Green and Martin Kotynek-Friedl for their help with data collection.  ... 
doi:10.1016/j.neuroimage.2006.09.010 pmid:17070707 pmcid:PMC2577311 fatcat:e3vrafjovbgzdd5op7wwy6k35y

Brain plasticity and tumors [chapter]

H. Duffau
2008 Advances and technical standards in neurosurgery  
Beyond this dynamic organization of the primary sensorimotor cortex with its ability to reshape, such plasticity mechanisms also imply possible changes (a) in activity within the other ''non-primary''  ...  In this way, a recent combined PET and TMS study in right-handed patients with a left glioma, showed that all subjects had a significant activation of the left inferior frontal gyrus, and that they were  ... 
doi:10.1007/978-3-211-72283-1_1 fatcat:rboqk34zmfgfvkjww5xvcgkq5m
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