Abstract
There have been few case reports of perioral myoclonia with absences (POMA) because of the lack of videopolygraphic recordings clarifying the electroencephalogram (EEG)-electromyogram (EMG) correlations. We describe one of the first video-polygraphic studies of POMA in a patient who underwent repeated and prolonged split-screen video-polygraphic recordings. The ictal EEG showed generalized and irregular discharges of spikes or multiple spikes and slow waves, while two concomitant EMG patterns appeared: (1) a rhythmic enhancement of the orbicularis oris and masseter muscles on both sides with minimal asymmetry corresponding to perioral movements, and (2) a progressive increase in muscular tone in the mylohyoideus muscle corresponding to oro-alimentary automatisms. Myoclonic jerks were inconstantly time-locked to the spike component of the spike-wave complex. The evidence of a complex pattern of activation of the facial muscles suggests that the involvement of subcortical central pattern generators, related to masticatory activity, through the disinhibitory effect of the spike-wave discharge is a possible pathophysiological mechanism underlying POMA.
| Original language | Italian |
|---|---|
| Pages (from-to) | 122-124 |
| Number of pages | 3 |
| Journal | Bollettino - Lega Italiana contro l'Epilessia |
| Issue number | 144 |
| Publication status | Published - May 2012 |
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ASJC Scopus subject areas
- Clinical Neurology
Cite this
Studio video-poligrafico nella sindrome delle assenze con mioclonie periorali. / Trivisano, M.; D'Orsi, G.; Pascarella, M. G.; Carapelle, E.; Grasso, R.; Demaio, V.; Specchio, L. M.
In: Bollettino - Lega Italiana contro l'Epilessia, No. 144, 05.2012, p. 122-124.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Studio video-poligrafico nella sindrome delle assenze con mioclonie periorali
AU - Trivisano, M.
AU - D'Orsi, G.
AU - Pascarella, M. G.
AU - Carapelle, E.
AU - Grasso, R.
AU - Demaio, V.
AU - Specchio, L. M.
PY - 2012/5
Y1 - 2012/5
N2 - There have been few case reports of perioral myoclonia with absences (POMA) because of the lack of videopolygraphic recordings clarifying the electroencephalogram (EEG)-electromyogram (EMG) correlations. We describe one of the first video-polygraphic studies of POMA in a patient who underwent repeated and prolonged split-screen video-polygraphic recordings. The ictal EEG showed generalized and irregular discharges of spikes or multiple spikes and slow waves, while two concomitant EMG patterns appeared: (1) a rhythmic enhancement of the orbicularis oris and masseter muscles on both sides with minimal asymmetry corresponding to perioral movements, and (2) a progressive increase in muscular tone in the mylohyoideus muscle corresponding to oro-alimentary automatisms. Myoclonic jerks were inconstantly time-locked to the spike component of the spike-wave complex. The evidence of a complex pattern of activation of the facial muscles suggests that the involvement of subcortical central pattern generators, related to masticatory activity, through the disinhibitory effect of the spike-wave discharge is a possible pathophysiological mechanism underlying POMA.
AB - There have been few case reports of perioral myoclonia with absences (POMA) because of the lack of videopolygraphic recordings clarifying the electroencephalogram (EEG)-electromyogram (EMG) correlations. We describe one of the first video-polygraphic studies of POMA in a patient who underwent repeated and prolonged split-screen video-polygraphic recordings. The ictal EEG showed generalized and irregular discharges of spikes or multiple spikes and slow waves, while two concomitant EMG patterns appeared: (1) a rhythmic enhancement of the orbicularis oris and masseter muscles on both sides with minimal asymmetry corresponding to perioral movements, and (2) a progressive increase in muscular tone in the mylohyoideus muscle corresponding to oro-alimentary automatisms. Myoclonic jerks were inconstantly time-locked to the spike component of the spike-wave complex. The evidence of a complex pattern of activation of the facial muscles suggests that the involvement of subcortical central pattern generators, related to masticatory activity, through the disinhibitory effect of the spike-wave discharge is a possible pathophysiological mechanism underlying POMA.
KW - Classification
KW - Electromyography
KW - Idiopathic generalized epilepsy
KW - Perioral myoclonia with absences
KW - Videopolygraphy
UR - http://www.scopus.com/inward/record.url?scp=84887235060&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887235060&partnerID=8YFLogxK
M3 - Articolo
AN - SCOPUS:84887235060
SP - 122
EP - 124
JO - Bollettino - Lega Italiana contro l'Epilessia
JF - Bollettino - Lega Italiana contro l'Epilessia
SN - 0394-560X
IS - 144
ER -