Static mechanical allodynia (SMA) is a paradoxical painful hypo-aesthesia: Observations derived from neuropathic pain patients treated with somatosensory rehabilitation.
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| Title: | Static mechanical allodynia (SMA) is a paradoxical painful hypo-aesthesia: Observations derived from neuropathic pain patients treated with somatosensory rehabilitation. |
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| Authors: | Spicher, C. J. (AUTHOR), Mathis, F. (AUTHOR), Degrange, B. (AUTHOR), Freund, P. (AUTHOR), Rouiller, E. M. (AUTHOR) |
| Source: | Somatosensory & Motor Research. Mar2008, Vol. 25 Issue 1, p77-92. 16p. 1 Color Photograph, 4 Diagrams, 6 Charts, 2 Graphs. |
| Subjects: | Somatosensory evoked potentials, Allergies, Neurological disorders, Pain, Medical research |
| Abstract: | The present study aimed at investigating the time span it takes to remove a static mechanical allodynia (SMA) in humans suffering from chronic peripheral neuropathic pain. Forty-three subjects were included in the study and, during somatosensory rehabilitation, their SMA territory was precisely mapped. They then underwent distant vibrotactile counter stimulation (DVCS) treatment. It was observed that, with DVCS, SMA disappeared in all cases, and was transformed into an underlying hypoaesthesia. It was found that the "tenderness to touch" symptom (which is SMA) was located in the same territory as the underlying hypoaesthesia, which was located on a part of the cutaneous territory of a partially damaged nerve. These results demonstrate that treating patients suffering from neuropathic pain with DVCS revealed a skin territory of denervation that was previously masked by SMA. Thus, SMA can be considered as a paradoxical painful hypoaesthesia. Furthermore, mapping SMA is a valuable source of information for our understanding of abnormal sensory processing in neuropathic pain patients. We conclude that the mapping of the zone of hypersensitivity on the skin in humans suffering from chronic peripheral neuropathic pain improves diagnosis. The mapping of the zone of hypersensitivity is a tool to presume which branch of the peripheral nerve is damaged. The location of the axonal lesions is at the periphery, while the mechanism of pain sensitization is probably central and referred peripherally to the skin by a painful hypoaesthesia. [ABSTRACT FROM AUTHOR] |
| Copyright of Somatosensory & Motor Research is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 31291199 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Static mechanical allodynia (SMA) is a paradoxical painful hypo-aesthesia: Observations derived from neuropathic pain patients treated with somatosensory rehabilitation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Spicher%2C+C%2E+J%2E%22">Spicher, C. J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mathis%2C+F%2E%22">Mathis, F.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Degrange%2C+B%2E%22">Degrange, B.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Freund%2C+P%2E%22">Freund, P.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rouiller%2C+E%2E+M%2E%22">Rouiller, E. M.</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Somatosensory+%26+Motor+Research%22">Somatosensory & Motor Research</searchLink>. Mar2008, Vol. 25 Issue 1, p77-92. 16p. 1 Color Photograph, 4 Diagrams, 6 Charts, 2 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Somatosensory+evoked+potentials%22">Somatosensory evoked potentials</searchLink><br /><searchLink fieldCode="DE" term="%22Allergies%22">Allergies</searchLink><br /><searchLink fieldCode="DE" term="%22Neurological+disorders%22">Neurological disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Pain%22">Pain</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+research%22">Medical research</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The present study aimed at investigating the time span it takes to remove a static mechanical allodynia (SMA) in humans suffering from chronic peripheral neuropathic pain. Forty-three subjects were included in the study and, during somatosensory rehabilitation, their SMA territory was precisely mapped. They then underwent distant vibrotactile counter stimulation (DVCS) treatment. It was observed that, with DVCS, SMA disappeared in all cases, and was transformed into an underlying hypoaesthesia. It was found that the "tenderness to touch" symptom (which is SMA) was located in the same territory as the underlying hypoaesthesia, which was located on a part of the cutaneous territory of a partially damaged nerve. These results demonstrate that treating patients suffering from neuropathic pain with DVCS revealed a skin territory of denervation that was previously masked by SMA. Thus, SMA can be considered as a paradoxical painful hypoaesthesia. Furthermore, mapping SMA is a valuable source of information for our understanding of abnormal sensory processing in neuropathic pain patients. We conclude that the mapping of the zone of hypersensitivity on the skin in humans suffering from chronic peripheral neuropathic pain improves diagnosis. The mapping of the zone of hypersensitivity is a tool to presume which branch of the peripheral nerve is damaged. The location of the axonal lesions is at the periphery, while the mechanism of pain sensitization is probably central and referred peripherally to the skin by a painful hypoaesthesia. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Somatosensory & Motor Research is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/08990220801942748 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 77 Subjects: – SubjectFull: Somatosensory evoked potentials Type: general – SubjectFull: Allergies Type: general – SubjectFull: Neurological disorders Type: general – SubjectFull: Pain Type: general – SubjectFull: Medical research Type: general Titles: – TitleFull: Static mechanical allodynia (SMA) is a paradoxical painful hypo-aesthesia: Observations derived from neuropathic pain patients treated with somatosensory rehabilitation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Spicher, C. J. – PersonEntity: Name: NameFull: Mathis, F. – PersonEntity: Name: NameFull: Degrange, B. – PersonEntity: Name: NameFull: Freund, P. – PersonEntity: Name: NameFull: Rouiller, E. M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 08990220 Numbering: – Type: volume Value: 25 – Type: issue Value: 1 Titles: – TitleFull: Somatosensory & Motor Research Type: main |
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