Mapping the Cerebellar Cognitive Affective Syndrome in Patients with Chronic Cerebellar Strokes. Chirino-Pérez, A., Marrufo-Meléndez, O. R., Muñoz-López, J. I., Hernandez-Castillo, C. R., Ramirez-Garcia, G., Díaz, R., Nuñez-Orozco, L., & Fernandez-Ruiz, J. Cerebellum (London, England), June, 2021.
doi  abstract   bibtex   
The cerebellar cognitive affective syndrome (CCAS) has been consistently described in patients with acute/subacute cerebellar injuries. However, studies with chronic patients have had controversial findings that have not been explored with new cerebellar-target tests, such as the CCAS scale (CCAS-S). The objective of this research is to prove and contrast the usefulness of the CCAS-S and the Montreal Cognitive Assessment (MoCA) test to evaluate cognitive/affective impairments in patients with chronic acquired cerebellar lesions, and to map the cerebellar areas whose lesions correlated with dysfunctions in these tests. CCAS-S and MoCA were administrated to 22 patients with isolated chronic cerebellar strokes and a matched comparison group. The neural bases underpinning both tests were explored with multivariate lesion-symptom mapping (LSM) methods. MoCA and CCAS-S had an adequate test performance with efficient discrimination between patients and healthy volunteers. However, only impairments determined by the CCAS-S resulted in significant regional localization within the cerebellum. Specifically, patients with chronic cerebellar lesions in right-lateralized posterolateral regions manifested cognitive impairments inherent to CCAS. These findings concurred with the anterior-sensorimotor/posterior-cognitive dichotomy in the human cerebellum and revealed clinically intra- and cross-lobular significant regions (portions of right lobule VI, VII, Crus I-II) for verbal tasks that overlap with the "language" functional boundaries in the cerebellum. Our findings prove the usefulness of MoCA and CCAS-S to reveal cognitive impairments in patients with chronic acquired cerebellar lesions. This study extends the understanding of long-term CCAS and introduces multivariate LSM methods to identify clinically intra- and cross-lobular significant regions underpinning chronic CCAS.
@article{chirino-perez_mapping_2021,
	title = {Mapping the {Cerebellar} {Cognitive} {Affective} {Syndrome} in {Patients} with {Chronic} {Cerebellar} {Strokes}},
	issn = {1473-4230},
	doi = {10.1007/s12311-021-01290-3},
	abstract = {The cerebellar cognitive affective syndrome (CCAS) has been consistently described in patients with acute/subacute cerebellar injuries. However, studies with chronic patients have had controversial findings that have not been explored with new cerebellar-target tests, such as the CCAS scale (CCAS-S). The objective of this research is to prove and contrast the usefulness of the CCAS-S and the Montreal Cognitive Assessment (MoCA) test to evaluate cognitive/affective impairments in patients with chronic acquired cerebellar lesions, and to map the cerebellar areas whose lesions correlated with dysfunctions in these tests. CCAS-S and MoCA were administrated to 22 patients with isolated chronic cerebellar strokes and a matched comparison group. The neural bases underpinning both tests were explored with multivariate lesion-symptom mapping (LSM) methods. MoCA and CCAS-S had an adequate test performance with efficient discrimination between patients and healthy volunteers. However, only impairments determined by the CCAS-S resulted in significant regional localization within the cerebellum. Specifically, patients with chronic cerebellar lesions in right-lateralized posterolateral regions manifested cognitive impairments inherent to CCAS. These findings concurred with the anterior-sensorimotor/posterior-cognitive dichotomy in the human cerebellum and revealed clinically intra- and cross-lobular significant regions (portions of right lobule VI, VII, Crus I-II) for verbal tasks that overlap with the "language" functional boundaries in the cerebellum. Our findings prove the usefulness of MoCA and CCAS-S to reveal cognitive impairments in patients with chronic acquired cerebellar lesions. This study extends the understanding of long-term CCAS and introduces multivariate LSM methods to identify clinically intra- and cross-lobular significant regions underpinning chronic CCAS.},
	language = {eng},
	journal = {Cerebellum (London, England)},
	author = {Chirino-Pérez, Amanda and Marrufo-Meléndez, Oscar René and Muñoz-López, José Ignacio and Hernandez-Castillo, Carlos R. and Ramirez-Garcia, Gabriel and Díaz, Rosalinda and Nuñez-Orozco, Lilia and Fernandez-Ruiz, Juan},
	month = jun,
	year = {2021},
	pmid = {34109552},
	keywords = {Cerebellar cognitive affective syndrome, Cerebellar cognitive affective syndrome scale, Cerebellar stroke, Lesion-symptom mapping, Magnetic resonance imaging},
}

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