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Biomedical subjects

L Septien

Publications and source records attributed to L Septien.

At least 19 recordsLinked to original sources

Decrease in cerebellar blood flow in patients with Friedreich's ataxia: A TC-HMPAO SPECT study of three cases.

Three cases of Friedreich's ataxia were submitted to diverse neuroradiological procedures in order to determine the extent of atrophic processes in the central nervous system. All patients underwent computerized-tomography scan, Magnetic Resonance Imaging, and HMPA-single Photon emission computerized tomography studies, focusing in cerebellar lobes. A slight atrophy was observed in the vermis and the cerebellar lobes with CT scan and MRI. In contrast a significant decrease in cerebellar blood flow was shown by TC-HMPAE SPECT study. The significance of these findings in understanding physiopathological mechanisms in Friedreich's ataxia is discussed.

Adult↗

Depression and partial epilepsy: relevance of laterality of the epileptic focus.

In a prospective study of 50 epileptic patients (20 with a left hemisphere epileptic focus, 20 with a right one and 10 with a cryptogenic generalized epilepsy), the authors show that depression as appreciated by the H.A.R.D. score, is more frequent and severe in partial epilepsy in males, and when the epileptic focus is localized on left hemisphere. This association is related to the duration of epilepsy, the number of seizures, but not to age or medication status. Vulnerability of left hemisphere to depression is analysed, and neuro-chemical mechanisms are discussed.

Adult↗

[Agenesis of the corpus callosum and epilepsy. 26 cases].

Agenesis of the corpus callosum is a cerebral malformation diagnosed by CT scan. Beside mental retardation, the most frequent clinical manifestation is epilepsy. In a personal study of 26 cases, the authors analysed the clinical features of epileptic seizures observed with this malformation. They put the stress on the paradoxical presence of generalized seizures.

Abnormalities, Multiple↗

Sphenoidal electrode insertion under local analgesia in children.

The indications for method and the results of sphenoidal electrode insertion under local analgesia are evaluated in children. This technique makes it possible to study the hippocampal area, which cannot be studied by other extracranial electrodes. It also localizes in a temporal lobe some complex seizures without electrical events on surface recordings, complex seizures with bilateral temporal spikes or a frontotemporal focus of spikes, as well as those with a temporal focus with bilateral synchronous spikes in standard EEG. Therefore, sphenoidal electrodes inserted without heavy general analgesia enable temporal seizures to be identified and localized, leading to more specific neuroradiological and neurophysiological explorations and helping in this way to select possible patients for epileptic surgery.

Adolescent↗

[REM-sleep behavior disorder and olivo-ponto-cerebellar atrophy: a case report].

The authors report the observation of REM-sleep behavior disorder in a patient also suffering from an olivo-ponto-cerebellar atrophy. They discuss the place of this sleep disorder among the parasomnias, its pathophysiological basis and its features similar to those of the somnambulism. Only a polysomnography study can help to make the diagnosis.

Female↗

[Acute anterior bi-opercular syndrome of critical origin in epilepsy with rolandic spikes].

We report the fifth case of a palsy of the lips, the tongue and the pharynx corresponding to an acute pseudo-bulbar syndrome causing speech arrest, and hyper-sialorrhea. The clinical examination and the electroencephalograms showed a partial motor status with spikes discharges in the two central regions, in a 10-year old boy known to have epilepsy with rolandic spikes. The status epilepticus ceased with phenytoin therapy. Although epilepsy with rolandic spikes is a benign one without any cerebral lesion, a partial motor status epilepticus is possible and does not change prognosis.

Brain Diseases↗

[Difficulties in diagnosis of frontal syndrome in epileptic children: clinical, diagnostic, physiopathological aspects. Apropos of 6 cases].

The authors report 6 cases of acute frontal syndrome following severe seizures of frontal origin. The study of the 6 cases shows the place of disorders in affectivity, behavior, judgement and motor activity; such features changing over time. The relationship between the frontal syndrome and epilepsy is suggested by the fact that the frontal syndrome appears after an increased frequency of frontal seizures, with prolonged discharges of generalized or frontal spikes. The frontal syndrome disappears slowly with the epileptic discharges, and no frontal lesion is found on CT-Scan. Such cases suggest that the frontal syndrome is functional, linked to the localization of the epileptic discharges; it may be regarded as a post-critic deficit, and must be differentiated from a post-critic delirium or a psychotic state.

Adolescent↗

[Dopa-sensitive muscular dystonia. Segawa's syndrome. A case report].

A four-year-old girl developed difficulty in walking due to dystonia of the right then left foot, rest tremor in both hands, and rigidity. These symptoms worsened upon exertion and in the evening and were remarkably responsive to L. dopa, suggesting the diagnosis of fluctuating muscular dystonia or Segawa syndrome.

Child, Preschool↗

[Electrophysiologic investigation of the anterior temporal and frontal lobes: sphenoidal and intraorbital electrodes].

The authors have evaluated the interest of sphenoidal electrodes in detection of internal temporal spikes, and intra-orbital electrodes in the detection of orbito-frontal spikes. From a study of 26 patients, 21 with sphenoidal electrodes, 3 with intra-orbital electrodes and 2 with both electrodes, they observed the sensitivity and specificity of such electrodes in detecting spikes with no traduction upon extra-cranial electrodes, or with an unsuspected traduction as spikes at a distance from deep electrodes, or spikes on 2 foci, or bisynchronous discharges. Sphenoidal and intra-oribital electrodes constitute a non-invasive method that provides excellent information in the exploration of the mesiobasal cerebral face. Indications for the use of such a method are complex absences without EEG traduction or with an unsuspected traduction and without abnormalities on CT scan, in the context of functional surgery of epilepsy.

Adolescent↗

Migraine in patients with history of centro-temporal epilepsy in childhood: a Hm-PAO SPECT study.

The authors report the results of a retrospective controlled study on the incidence of migraine in centro-temporal epilepsy compared to absence epilepsy, partial epilepsy and a group of patients with cranial trauma without epilepsy. The following observations from this series of 129 patients were made. Migraine was present in 63% of the patients with centro-temporal epilepsy (rolandic epilepsy), in 33% with absence epilepsy, in 7% with partial epilepsy and in 9% of the cranial trauma group. These results suggest that the association of centro-temporal epilepsy and migraine is non-fortuitous and also to a lesser degree in absence epilepsy. The role of neurotransmitters in this association is discussed. No decrease in cerebral blood flow was observed in 12 patients with rolandic epilepsy on a Hm-PAO SPECT study.

Adolescent↗

[Identification of temporal epilepsy in children: contribution of sphenoidal electrodes].

The authors have evaluated the indications, method and results of utilising sphenoidal electrodes in epilepsy. This method makes it possible to study the hippocampal area which cannot be studied by extra-cranial electrodes. It also localizes in the temporal lobe complex seizures without investigation by an electroencephalogram, or with a non-specific electroencephalographic picture. Thus, sphenoidal electrodes enable temporal seizures to be identified and localized, leading to more specific neuroradiological exploration, and therefore to the selection of patients for specific surgery.

Adolescent↗