Kleine-Levin Syndrome
A rare sleep disorder involving recurrent episodes of excessive sleepiness lasting days to weeks, often with cognitive and behavioral changes, separated by periods of normal functioning.
Overview
Kleine-Levin syndrome is a rare disorder involving recurrent episodes of excessive sleepiness lasting days to weeks, often accompanied by cognitive changes, altered perception, and behavioral disturbances, with normal sleep, mood, and behavior between episodes.
Signs and Symptoms
Symptoms during episodes can include sleeping up to 20 hours a day, confusion, irritability, and, in some cases, disinhibited eating or behavior; symptoms resolve completely between episodes. Experiencing one or more of these symptoms does not necessarily mean that a person has this condition. Diagnosis requires an appropriate clinical evaluation.
Causes and Risk Factors
The exact cause is not fully understood, though it is more common in adolescent males and episodes are sometimes triggered by an infection or stressor.
Diagnosis
A diagnosis should be made by a qualified healthcare professional following a comprehensive clinical assessment. Clinicians may use established diagnostic frameworks such as DSM-5-TR and/or ICD-11 as part of a comprehensive assessment.
Treatment
Treatment depends on the individual’s symptoms, clinical history, severity, age, co-occurring conditions, and other relevant factors.
Psychotherapy
Supportive care during episodes and education for family and school are important given the episodic nature of the condition.
Medication
Certain medications may be considered to help reduce episode frequency or severity in some cases. Medication decisions should be made with a qualified prescribing healthcare professional. Do not start, stop, or change a prescribed medication based solely on information on this page.
Living With Kleine-Levin Syndrome
Planning ahead for school or work accommodations during episodes can reduce disruption.
When to Seek Professional Help
Professional evaluation may be appropriate if symptoms persist, worsen, cause significant distress, or interfere with work, school, or relationships.
Emergency Situations
If a person may be in immediate danger, is experiencing a medical or psychiatric emergency, or may harm themselves or another person, seek immediate assistance through appropriate local emergency services.
Outlook
Episodes typically become less frequent and often resolve over years, particularly by adulthood.
Related Conditions
Medical Information Disclaimer
Ratel Health provides general educational information and does not provide medical diagnosis, treatment, or individualized medical advice. Information on this page is not a substitute for evaluation or care from a qualified healthcare professional. Do not use this information to diagnose yourself or another person, or to start, stop, or change treatment or medication without consulting an appropriately qualified healthcare professional.
References
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).
- National Institutes of Health.
- Centers for Disease Control and Prevention.
- World Health Organization. International Classification of Diseases, 11th Revision.