Functional Lesion Network Mapping of Sensory Deficits After Ischemic Stroke
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Functional Lesion Network Mapping of Sensory Deficits After Ischemic Stroke. / Schlemm, Eckhard; Cheng, Bastian; Thomalla, Götz; Kessner, Simon S.
in: STROKE, Jahrgang 54, Nr. 11, 11.2023, S. 2918-2922.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › Kurzpublikation › Forschung › Begutachtung
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TY - JOUR
T1 - Functional Lesion Network Mapping of Sensory Deficits After Ischemic Stroke
AU - Schlemm, Eckhard
AU - Cheng, Bastian
AU - Thomalla, Götz
AU - Kessner, Simon S
PY - 2023/11
Y1 - 2023/11
N2 - BACKGROUND: Sensory deficits are common after stroke, leading to disability and poor quality of life. Although lesion locations and patterns of structural brain network disruption have been associated with sensory disturbances, the relation with functional lesion connectivity has not yet been established.METHODS: Retrospective analysis of a prospective cohort study of patients with acute ischemic stroke. Indirect functional lesion network mapping to identify brain regions remote from the primary lesion associated with deficits on the Rivermead Assessment of Somatosensory Performance test. Associations between Rivermead Assessment of Somatosensory Performance scores and functional connectivity of the lesion site with prespecified components of the somatosensory system.RESULTS: One hundred one patients (mean age, 62 years; 32% women) from the TOPOS study (Topological and Clinical Prospective Study About Somatosensation in Stroke). Lesion network mapping identified a bilateral fronto-parietal network associated with sensory deficits in the acute phase after stroke. There were graded associations between deficits and functional lesion connectivity to sensory cortices, but not the thalamus.CONCLUSIONS: Infarcts in brain regions remote from, but functionally connected, to the somatosensory network are associated with somatosensory deficits measured by the Rivermead Assessment of Somatosensory Performance test, reflecting the hierarchical functional anatomy of sensory processing. Further research is needed to translate these findings into improved prognosis and personalized rehabilitation strategies.
AB - BACKGROUND: Sensory deficits are common after stroke, leading to disability and poor quality of life. Although lesion locations and patterns of structural brain network disruption have been associated with sensory disturbances, the relation with functional lesion connectivity has not yet been established.METHODS: Retrospective analysis of a prospective cohort study of patients with acute ischemic stroke. Indirect functional lesion network mapping to identify brain regions remote from the primary lesion associated with deficits on the Rivermead Assessment of Somatosensory Performance test. Associations between Rivermead Assessment of Somatosensory Performance scores and functional connectivity of the lesion site with prespecified components of the somatosensory system.RESULTS: One hundred one patients (mean age, 62 years; 32% women) from the TOPOS study (Topological and Clinical Prospective Study About Somatosensation in Stroke). Lesion network mapping identified a bilateral fronto-parietal network associated with sensory deficits in the acute phase after stroke. There were graded associations between deficits and functional lesion connectivity to sensory cortices, but not the thalamus.CONCLUSIONS: Infarcts in brain regions remote from, but functionally connected, to the somatosensory network are associated with somatosensory deficits measured by the Rivermead Assessment of Somatosensory Performance test, reflecting the hierarchical functional anatomy of sensory processing. Further research is needed to translate these findings into improved prognosis and personalized rehabilitation strategies.
U2 - 10.1161/STROKEAHA.123.044470
DO - 10.1161/STROKEAHA.123.044470
M3 - Short publication
C2 - 37795591
VL - 54
SP - 2918
EP - 2922
JO - STROKE
JF - STROKE
SN - 0039-2499
IS - 11
ER -