Childhood epilepsy with centrotemporal spikes (CECTS) is the most common type of “self-limited focal epilepsies.” In its typical presentation, CECTS is a condition reflecting non-lesional cortical hyperexcitability of rolandic regions. The benign evolution of this disorder is challenged by the frequent observation of associated neuropsychological deficits and behavioral impairment. The abundance (or frequency) of interictal centrotemporal spikes (CTS) in CECTS is considered a risk factor for deficits in cognition. Herein, we captured the hemodynamic changes triggered by the CTS density measure (i.e., the number of CTS for time bin) obtained in a cohort of CECTS, studied by means of video electroencephalophy/functional MRI during quite wakefulness. We aim to demonstrate a direct influence of the diurnal CTS frequency on epileptogenic and cognitive networks of children with CECTS. A total number of 8,950 CTS (range between 27 and 801) were recorded in 23 CECTS (21 male), with a mean number of 255 CTS/patient and a mean density of CTS/30 s equal to 10,866 ± 11.46. Two independent general linear model models were created for each patient based on the effect of interest: “individual CTS” in model 1 and “CTS density” in model 2. Hemodynamic correlates of CTS density revealed the involvement of a widespread cortical–subcortical network encompassing the sensory-motor cortex, the Broca's area, the premotor cortex, the thalamus, the putamen, and red nucleus, while in the CTS event-related model, changes were limited to blood–oxygen-level-dependent (BOLD) signal increases in the sensory-motor cortices. A linear relationship was observed between the CTS density hemodynamic changes and both disease duration (positive correlation) and age (negative correlation) within the language network and the bilateral insular cortices. Our results strongly support the critical role of the CTS frequency, even during wakefulness, to interfere with the normal functioning of language brain networks.

Mapping the Effect of Interictal Epileptic Activity Density During Wakefulness on Brain Functioning in Focal Childhood Epilepsies With Centrotemporal Spikes / Vaudano, A. E.; Avanzini, P.; Cantalupo, G.; Filippini, M.; Ruggieri, A.; Talami, F.; Caramaschi, E.; Bergonzini, P.; Vignoli, A.; Veggiotti, P.; Guerra, A.; Gessaroli, G.; Santucci, M.; Canevini, M. P.; Piccolo, B.; Pisani, F.; Gobbi, G.; Dalla Bernardina, B.; Meletti, S.. - In: FRONTIERS IN NEUROLOGY. - ISSN 1664-2295. - 10:(2019), pp. 1316-1329. [10.3389/fneur.2019.01316]

Mapping the Effect of Interictal Epileptic Activity Density During Wakefulness on Brain Functioning in Focal Childhood Epilepsies With Centrotemporal Spikes

Vaudano A. E.;Avanzini P.;Filippini M.;Talami F.;Caramaschi E.;Gessaroli G.;Santucci M.;Meletti S.
2019

Abstract

Childhood epilepsy with centrotemporal spikes (CECTS) is the most common type of “self-limited focal epilepsies.” In its typical presentation, CECTS is a condition reflecting non-lesional cortical hyperexcitability of rolandic regions. The benign evolution of this disorder is challenged by the frequent observation of associated neuropsychological deficits and behavioral impairment. The abundance (or frequency) of interictal centrotemporal spikes (CTS) in CECTS is considered a risk factor for deficits in cognition. Herein, we captured the hemodynamic changes triggered by the CTS density measure (i.e., the number of CTS for time bin) obtained in a cohort of CECTS, studied by means of video electroencephalophy/functional MRI during quite wakefulness. We aim to demonstrate a direct influence of the diurnal CTS frequency on epileptogenic and cognitive networks of children with CECTS. A total number of 8,950 CTS (range between 27 and 801) were recorded in 23 CECTS (21 male), with a mean number of 255 CTS/patient and a mean density of CTS/30 s equal to 10,866 ± 11.46. Two independent general linear model models were created for each patient based on the effect of interest: “individual CTS” in model 1 and “CTS density” in model 2. Hemodynamic correlates of CTS density revealed the involvement of a widespread cortical–subcortical network encompassing the sensory-motor cortex, the Broca's area, the premotor cortex, the thalamus, the putamen, and red nucleus, while in the CTS event-related model, changes were limited to blood–oxygen-level-dependent (BOLD) signal increases in the sensory-motor cortices. A linear relationship was observed between the CTS density hemodynamic changes and both disease duration (positive correlation) and age (negative correlation) within the language network and the bilateral insular cortices. Our results strongly support the critical role of the CTS frequency, even during wakefulness, to interfere with the normal functioning of language brain networks.
2019
10
1316
1329
Mapping the Effect of Interictal Epileptic Activity Density During Wakefulness on Brain Functioning in Focal Childhood Epilepsies With Centrotemporal Spikes / Vaudano, A. E.; Avanzini, P.; Cantalupo, G.; Filippini, M.; Ruggieri, A.; Talami, F.; Caramaschi, E.; Bergonzini, P.; Vignoli, A.; Veggiotti, P.; Guerra, A.; Gessaroli, G.; Santucci, M.; Canevini, M. P.; Piccolo, B.; Pisani, F.; Gobbi, G.; Dalla Bernardina, B.; Meletti, S.. - In: FRONTIERS IN NEUROLOGY. - ISSN 1664-2295. - 10:(2019), pp. 1316-1329. [10.3389/fneur.2019.01316]
Vaudano, A. E.; Avanzini, P.; Cantalupo, G.; Filippini, M.; Ruggieri, A.; Talami, F.; Caramaschi, E.; Bergonzini, P.; Vignoli, A.; Veggiotti, P.; Guer...espandi
File in questo prodotto:
File Dimensione Formato  
2020_Vaudano_fneur-BECTS.pdf

Open access

Tipologia: Versione pubblicata dall'editore
Dimensione 1.08 MB
Formato Adobe PDF
1.08 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1208504
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 14
social impact