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Understanding Other Specified Hypersomnolence Disorder
- May 7, 2024
- Posted by: SEETHALAKSHMI SIVAKUMAR
- Category: Sleep Disorders

Understanding Other Specified Hypersomnolence Disorder
Other Specified Hypersomnolence Disorder (OSHD) is a sleep disorder characterized by excessive daytime sleepiness despite getting enough sleep at night. It falls under the umbrella of central disorders of hypersomnolence, along with other conditions like narcolepsy and idiopathic hypersomnia. OSHD is a relatively new diagnosis and was introduced in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) in 2013.
Common Types of Other Specified Hypersomnolence Disorder
OSHD is a broad category that encompasses various subtypes. While the exact causes and mechanisms behind each subtype are not fully understood, here are some common types of OSHD:
Recurrent Hypersomnia
Recurrent hypersomnia refers to episodes of excessive sleepiness that occur periodically. These episodes can last for days or even weeks, during which individuals experience an overwhelming need to sleep for extended periods. The frequency and duration of these episodes can vary from person to person.
Posttraumatic Hypersomnia
Posttraumatic hypersomnia is characterized by excessive daytime sleepiness following a traumatic event, such as a head injury or psychological trauma. The exact mechanisms behind this subtype are not fully understood, but it is believed to be related to disruptions in the brain’s sleep-wake cycle.
Idiopathic Recurrent Hypersomnia
Idiopathic recurrent hypersomnia refers to excessive daytime sleepiness that occurs periodically without any known cause. Individuals with this subtype experience recurrent episodes of prolonged sleepiness, often lasting for several days. The cause of idiopathic recurrent hypersomnia remains unknown, and further research is needed to understand its underlying mechanisms.
Symptoms of Other Specified Hypersomnolence Disorder
The primary symptom of OSHD is excessive daytime sleepiness (EDS), which is characterized by an overwhelming and persistent need to sleep during the day, despite getting enough sleep at night. Individuals with OSHD may also experience:
- Difficulty waking up in the morning
- Difficulty maintaining alertness during the day
- Frequent napping or prolonged daytime sleep episodes
- Feeling unrefreshed after sleep
- Impaired cognitive function, such as difficulty concentrating or remembering
- Low energy levels
- Depression or irritability
How to Identify Other Specified Hypersomnolence Disorder
If you suspect that you or someone you know may have OSHD, it is important to consult with a healthcare professional for an accurate diagnosis. The diagnostic process typically involves:
- Medical History: The healthcare professional will ask about your sleep patterns, symptoms, and any underlying medical conditions that may contribute to excessive sleepiness.
- Physical Examination: A physical examination may be conducted to rule out any other potential causes of excessive sleepiness.
- Sleep Studies: Polysomnography and multiple sleep latency tests (MSLT) may be recommended to assess sleep patterns and measure daytime sleepiness.
It is important to note that a diagnosis of OSHD can only be made by a qualified healthcare professional based on the specific criteria outlined in the DSM-5.
Treatment for Other Specified Hypersomnolence Disorder
While there is no cure for OSHD, there are various treatment options available to manage the symptoms and improve quality of life:
- Stimulant Medications: Stimulant medications, such as modafinil or armodafinil, may be prescribed to help promote wakefulness during the day.
- Behavioral Therapy: Cognitive-behavioral therapy for insomnia (CBT-I) may be beneficial in improving sleep quality and managing excessive daytime sleepiness.
- Lifestyle Modifications: Adopting healthy sleep habits, such as maintaining a consistent sleep schedule, avoiding caffeine and alcohol, and creating a conducive sleep environment, can help manage symptoms.
- Supportive Therapies: Support groups and counseling can provide emotional support and coping strategies for individuals living with OSHD.
It is important to work closely with a healthcare professional to develop an individualized treatment plan that addresses your specific needs and symptoms.
Conclusion
Other Specified Hypersomnolence Disorder is a sleep disorder characterized by excessive daytime sleepiness despite adequate sleep at night. It encompasses various subtypes, including recurrent hypersomnia, posttraumatic hypersomnia, and idiopathic recurrent hypersomnia. The primary symptom is excessive daytime sleepiness, and a proper diagnosis requires consultation with a healthcare professional. Treatment options include medication, behavioral therapy, lifestyle modifications, and supportive therapies. With the right management approach, individuals with OSHD can improve their quality of life and effectively manage their symptoms.