What respiratory physicians should know about parasomnias

Area of Science:

• Sleep Medicine
• Neurology

Background:

• Parasomnias are sleep disorders with significant quality-of-life, prognostic, and forensic implications.
• These disorders involve undesirable physical events or experiences during sleep, arising from NREM or REM stages.
• While common in childhood, they can persist or emerge in adulthood.

Purpose of the Study:

• To elucidate the common features of NREM and REM parasomnias.
• To differentiate the causes of motor behaviors during sleep.
• To discuss the comprehensive treatment approach for NREM and REM parasomnias.

Main Methods:

• Clinical history, including collateral information, is essential for identifying characteristic features.
• Video polysomnography aids in analyzing sleep architecture, behavioral events, and coexisting sleep pathologies.
• Differential diagnosis, particularly sleep-related hypermotor epilepsy, is considered.

Main Results:

• Parasomnias manifest as movements, behaviors, emotions, perceptions, dreams, or autonomic activity during sleep.
• NREM parasomnias include confusional arousals, sleepwalking, sleep terrors, and sleep-related eating disorder.
• REM parasomnias encompass REM sleep behavior disorder, recurrent isolated sleep paralysis, and nightmare disorder.

Conclusions:

• Accurate diagnosis and management of parasomnias require understanding their pathophysiology and clinical presentation.
• Treatment involves a multimodal approach including safety measures, sleep hygiene, and pharmacotherapy (e.g., clonazepam, melatonin).
• Effective management improves sleep consolidation and reduces disruptive behavioral activity for patients and partners.