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A prolonged rhythmic midtemporal discharge in a child without seizures
Ahmad Fawaz1, Wassim Nasreddine1, Stephanie Bustros1
1Department of Neurology, American University of Beirut Medical Center, Beirut, Lebanon.
Clinical EEG and Neuroscience
|May 28, 2014
Summary
Rhythmic midtemporal discharge (RMTD) can present as prolonged, rhythmic brain activity. This case study documents an unusually long RMTD event lasting over 80 minutes in a child.
Area of Science:
- Neurophysiology
- Clinical Neurology
- Pediatric Epilepsy
Background:
- Rhythmic midtemporal discharge (RMTD) is recognized as a benign epileptiform variant.
- Typically, RMTD presents as brief bursts of 4-Hz to 7-Hz activity, localized to the midtemporal region.
Purpose of the Study:
- To report a rare case of exceptionally prolonged RMTD in a pediatric patient.
- To analyze the characteristics of this extended discharge event.
Main Methods:
- Diagnostic electroencephalographic (EEG) monitoring combined with closed-circuit television (CCTV) surveillance.
- Analysis of discharge frequency and morphology during the prolonged event.
Main Results:
- A pediatric patient exhibited prolonged rhythmic monomorphic discharges alternating between midtemporal areas.
- The longest discharge persisted for an unprecedented 82 minutes, maintaining a monomorphic frequency throughout.
Conclusions:
- The observed prolonged discharges were consistent with RMTD, albeit of unusual and extended duration.
- This case expands the known spectrum of RMTD presentation in pediatric EEG.
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