SEEG in Frontal Lobe Epilepsy

Invasive Studies of the Human Epileptic Brain ◽

10.1093/med/9780198714668.003.0023 ◽

2018 ◽

pp. 299-311

Author(s):

Aileen McGonigal ◽

Patrick Chauvel

Keyword(s):

Frontal Lobe ◽

Functional Organization ◽

Clinical Spectrum ◽

Frontal Lobe Epilepsy ◽

Motor Behaviour ◽

Physiological Factors ◽

Complex Motor ◽

Integrated Or ◽

Rostrocaudal Gradient ◽

Frontal Lobe Seizures

Frontal lobe epilepsy (FLE) constitutes a challenge for presurgical evaluation because of specific anatomical and physiological factors. Semiological expression of frontal lobe seizures is notably varied and complex but nevertheless certain distinct patterns can be characterized, associated with different sublobar epilepsy localizations. These electro-clinical patterns have been largely demonstrated by stereo-electroencephalographic (SEEG) studies. An electro-clinical spectrum of semiological expression has been shown, with the most anterior prefrontal regions being associated with complex motor behaviour, distal stereotypies, and an integrated or naturalistic appearance; posterior prefrontal regions associated with proximal stereotypies sometimes associated with tonic posture; and motor/premotor regions associated with elementary motor signs. This rostrocaudal gradient is in keeping with current theories of frontal lobe functional organization. This chapter discusses issues specific to SEEG exploration of FLE, reviews historical investigations of frontal semiology, and highlights different patterns of semiological expression in both focal and widespread frontal seizures, as elucidated by SEEG.

Download Full-text

Frontal Lobe Epilepsy Presenting as a Psychotic Disorder With Delusions and Hallucinations: A Case Study

CNS Spectrums ◽

10.1017/s1092852900012207 ◽

1999 ◽

Vol 4 (9) ◽

pp. 64-66,82 ◽

Cited By ~ 4

Author(s):

Bonnie J. Ramsey

Keyword(s):

Temporal Lobe Epilepsy ◽

Frontal Lobe ◽

Psychotic Disorder ◽

Temporal Lobe ◽

Psychotic Disorders ◽

Psychotic Symptoms ◽

Frontal Lobe Epilepsy ◽

Unique Case ◽

Frontal Lobe Seizures

AbstractAlthough psychotic symptoms are a recognized manifestation of epilepsy, these are more often associated with seizures of the temporal lobe type. While 10% of children with temporal lobe epilepsy develop a psychotic disorder by adulthood, the literature does not report any cases of psychotic disorders associated with frontal lobe seizures in children. This article presents a unique case of a girl whose frontal lobe seizures were associated with delusional psychotic symptoms. Once her seizure disorder was identified through electroencephalography (EEG) and appropriate anticonvulsant therapy was initiated, her associated psychotic symptoms resolved.

Download Full-text

Choking at Night: A Case of Opercular Nocturnal Frontal Lobe Epilepsy

Case Reports in Pediatrics ◽

10.1155/2013/606385 ◽

2013 ◽

Vol 2013 ◽

pp. 1-3 ◽

Cited By ~ 1

Author(s):

Geetanjali Rathore ◽

Paul Larsen ◽

Manish Parakh ◽

Cristina Fernandez

Keyword(s):

Motor Activity ◽

Sleep Disorders ◽

Frontal Lobe ◽

High Frequency ◽

Frontal Lobe Epilepsy ◽

Nocturnal Frontal Lobe Epilepsy ◽

Ictal Eeg ◽

Extrapyramidal Features ◽

Video Eeg ◽

Frontal Lobe Seizures

Frontal lobe seizures have a tendency to occur in sleep and in most cases occur exclusively insleep; these individuals are said to have nocturnal frontal lobe (NFLE). NFLE can be difficult to distinguish clinically from various other sleep disorders, particularly parasomnias, which also present with paroxysmal motor activity in sleep. Interictal and ictal EEG findings are frequently unremarkable or nonspecific in both parasomnias and NFLE making the diagnosis even more difficult. Nocturnal epilepsy should be suspected in patients with paroxysmal events at night characterized by high frequency, repetition, extrapyramidal features, and marked stereotypy of attacks. Here we present a 13-year-old female who was extensively worked up for choking episodes at night. On repeat video EEG she was found to have frontal opercular seizures. Once on Carbamazepine, her seizures completely resolved.

Download Full-text