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  Thalamic sensory strokes with and without pain: Differences in lesion patterns in the ventral posterior thalamus

Krause, T., Brunecker, P., Pittl, S., Taskin, B., Laubisch, D., Winter, B., et al. (2012). Thalamic sensory strokes with and without pain: Differences in lesion patterns in the ventral posterior thalamus. Journal of Neurology, Neurosurgery & Psychiatry, 83(8), 776-784. doi:10.1136/jnnp-2011-301936.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-B6C4-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-B11F-3
Genre: Journal Article

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 Creators:
Krause, Thomas1, 2, Author
Brunecker, Peter1, Author
Pittl, Sandra1, Author
Taskin, Birol3, 4, Author              
Laubisch, Dinah1, Author
Winter, Benjamin1, 2, Author
Lentza, Malamati Eleni1, Author
Malzahn, Uwe4, Author
Villringer, Kersten1, Author
Villringer, Arno2, 3, Author              
Jungehulsing, Gerhard J.1, 2, Author
Affiliations:
1Center for Stroke Research, Charité University Medicine Berlin, Germany, ou_persistent22              
2Department of Neurology, Charité University Medicine Berlin, Germany, ou_persistent22              
3Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
4Institute of Clinical Epidemiology and Biometry, Julius Maximilian University, Würzburg, Germany, ou_persistent22              

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 Abstract: Objective: Vascular lesions of the posterolateral thalamus typically result in a somatosensory syndrome in which some patients develop central neuropathic post-stroke pain (CPSP). Damage to the spinothalamic tract terminus is assumed to be a prerequisite for thalamic CPSP. At the nuclear level, it remains a matter of debate whether the ventral posterolateral nucleus (VPL) or the posterior portion of the ventral medial nucleus (VMpo) constitutes the decisive lesion site. The hypothesis of the study was that lesion location in thalamic CPSP patients differs from that in thalamic stroke patients without pain, and the aim was to identify whether this difference comprises the VPL and/or the VMpo. Design: 30 patients with chronic thalamic stroke and a persistent contralateral somatosensory syndrome were examined. CPSP patients (n=18) were compared with non-pain control patients. By coregistration of a digitised thalamic atlas with T1 weighted MR images, lesion clusters were allocated to the thalamic nuclei. Results: VPL was affected in both groups, but CPSP lesion clusters comprised the more posterior, inferior and lateral parts of the VPL compared with controls. Additional partial involvement of the VMpo was seen in only three pain patients. In three other pain patients, lesions involved neither the VPL nor the VMpo, but mainly affected the anterior pulvinar. Conclusion: This study specifies the role of the VPL in thalamic CPSP and shows that the posterolateratal and inferior parts in particular are critically lesioned in pain patients. In this thalamic subregion, afferents of the spinothalamic tract are known to terminate. In contrast, the data do not support a pivotal impact of the VMpo on thalamic CPSP.

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Language(s): eng - English
 Dates: 2012-04-232011-11-302012-04-282012-06-132012-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1136/jnnp-2011-301936
PMID: 22696587
Other: Epub 2012
 Degree: -

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Title: Journal of Neurology, Neurosurgery & Psychiatry
Source Genre: Journal
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Publ. Info: London : British Medical Association
Pages: - Volume / Issue: 83 (8) Sequence Number: - Start / End Page: 776 - 784 Identifier: ISSN: 0022-3050
CoNE: https://pure.mpg.de/cone/journals/resource/111085522793000