Brain Scintigraphy in Normal Versus Kleine-Levin Syndrome Subjects

Study Overview
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Brief Summary
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The investigators perform neuropsychological tests and brain scintigraphy in 30 healthy subjects. These results will be compared with data obtained out of episode in patients with Kleine-Levin syndrome (KLS). The investigators want to determine if brain functional imaging and cognitive abnormalities persist during asymptomatic period in a large series of patients with KLS, and to find predictors of these abnormalities.

Detailed Description
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3 steps in the protocol : Brain ECD-SPECT (marking brain perfusion in relation to brain active/hypoactive area) superimposed on a template T1-weighted brain MRI. Extensive cognitive tests of executive functions, verbal memory and fluency , visuospatial ability and memory, reasoning abilities: spontaneous memory complaint, Stroop Color Word Test, Trail Making Test A and B, Direct and Reverse Digit Span Test, Letter and Semantic Fluency Test, Free and Cued Selective Reminding Test, Rey-Osterrieth Complex Figure, Mini-Mental test, Progressive matrice of Raven (PM-38) KLS-inventory and face to face interview of patients and parents by neurologist for patients. Modified KLS-inventory for healthy subjects. Main outcome : Number of patients with persisting hypoperfused brain area (compared to controls), location of these area, number of patients with at least -1SD in one cognitive domain Correlation between KLS severity (disease course, number of episode, mean duration of episodes, time incapacitated, number of symptoms) and brain perfusion and cognitive abnormalities

Official Title
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Brain Scintigraphy in Normal Versus Kleine-Levin Syndrome Subjects

Conditions
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Healthy Subjects, Kleine-Levin Syndrome

Intervention / Treatment
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* Radiation: Brain scintigraphy with injection of Neurolite® (ECD)


Participation Criteria
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Eligibility Criteria
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Inclusion criteria : Subjects males and females with more than 18 y.o, age and sex-matched with patients with Kleine-Levin Syndrome with the same educational level and dominant hand than patients with Kleine-Levin Syndrome without any brain disease or sleep disease (Epworth score < 11/24) known. with social security french language for women : nonpregnant taking effective contraception Exclusion criteria : Minor subjects adults under protection subjects with neurologic, psychiatric, somatic or sleep diseases and/or receiving a psychotropic medication interfering with the results. subjects with history of seizures or loss of consciousness subjects with excessive alcohol consumption (more than 3 doses /day) subjects without any social security subjects non fluent in french for women : no effective contraception or lactation period

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| healthy subjects<br> | Radiation: Brain scintigraphy with injection of Neurolite® (ECD)<br>* Brain scintigraphy with injection of Neurolite® (ECD) 1 injection<br>|
| patients with Kleine-Levin Syndrome<br> | Radiation: Brain scintigraphy with injection of Neurolite® (ECD)<br>* Brain scintigraphy with injection of Neurolite® (ECD) 1 injection<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Brain perfusion. | Brain perfusion measured by scintigraphy with injection of Neurolite® (ECD) with a voxel by voxel approach | day 0 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Brain scintigraphy