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Circadian and ultradian rhythmicity in patients with disorders of consciousness
Camargo Fernandez Baca, Aldo; Blandiaux, Séverine; Piarulli, Andrea et al.
2018In European Journal of Neurology, 25 (S2)
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Keywords :
disorders of consciousness; actigraphy; ultradian; circadian
Abstract :
[en] Background and aims: The Unresponsive Wakefulness Syndrome and Minimally Conscious State (UWS; MCS) are characterized by the absence or the presence but severe disordered signs of consciousness in spite of the presence of preserved sleep-wake cycles. Spectral entropy has used to find periodicity on EEG signals of DOC (disorders of consciousness) patients. Circadian and ultradian are fisiological rhythmits found in all living organisms. Methods: We used data from 126 patients (controls, EMCS, LIS, MCS, MCS+, MCS-, MCS*, and UWS). We recorded the movements on the wrist for 7 consecutive days, then we use average 5 complete days in 24 hours to compute the circadian rhythmicity and in 120 min to compute the ultradian rhythmicity. Spectral entropy is used to compute to find the signficant diffference inthe amplitude of the movements and its periodicity (spectral amplitude) is used to find the rhythmicity. Results: We have found a circadian rhythmicity in DOC patients within 18 hours in average and and ultradian rhythmicity between 40 to 80 min. Conclusion: The actigraphy can give useful information about the circadian and ultradian rhytmicity in DOC patients.
Research center :
Giga-consciousness
Disciplines :
Neurology
Author, co-author :
Camargo Fernandez Baca, Aldo ;  Université de Liège - ULiège > GIGA : Coma Group
Blandiaux, Séverine ;  Université de Liège - ULiège > GIGA : Coma Group
Piarulli, Andrea  ;  Université de Liège - ULiège > GIGA : Coma Group
Wolff, Audrey ;  Université de Liège - ULiège > GIGA : Coma Group
Gosseries, Olivia  ;  Université de Liège - ULiège > GIGA-CRC In vivo Imaging
Thibaut, Aurore ;  Université de Liège - ULiège > GIGA : Coma Group
Laureys, Steven  ;  Université de Liège - ULiège > GIGA : Coma Group
Language :
English
Title :
Circadian and ultradian rhythmicity in patients with disorders of consciousness
Publication date :
2018
Event name :
4th Congress of the European Academy of Neurology
Event place :
Lisbon, Portugal
Event date :
16 au 19 juin 2018
Audience :
International
Journal title :
European Journal of Neurology
ISSN :
1351-5101
eISSN :
1468-1331
Publisher :
Blackwell, Oxford, United Kingdom
Special issue title :
Abstracts of the 4th Congress of the European Academy of Neurology, Lisbon, Portugal, June 2018
Volume :
25
Issue :
S2
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 August 2018

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