"Catatrenia": un trastorno del sueño poco conocido: descripción de tres casos clínicos pediátricos / Catathrenia: unknown sleep disorder: report 3 cases in pediatric patients

Catatrenia (gemido nocturno) es una condición rara caracterizada por sonidos irregulares que ocurren durante el sueño. Los comportamientos ocurren intermitentemente durante cualquiera de las dos etapas de sueño, REM o NREM y se caracterizan por gemidos prolongados, a menudo muy fuertes, socialmente perturbadores, durante la expiración. Es poco conocido y espera más definición y estudios terapéuticos. Hay pocos reportes y en su mayoría de pacientes adultos. Se presentan 3 casos en pacientes pediátricos.

Catathrenia (nocturnal groaning) is a rare condition characterized by irregular sounds that occur during sleep. The behaviors occur intermittently during either REM or NREM sleep and are characterized by prolonged, often very loud, socially disruptive groaning sounds during expiration. It is poorly understood and awaits further definition and therapeutic studies. There are few reports mostly adult patients are presented below 3 cases in pediatric patients.

Purposeless Groaning in Parkinson's Disease

Purposeless groaning has been reported in advanced progressive supranuclear palsy. We present a case of purposeless groaning occurring as a primary complaint in a patient with advanced Parkinson's disease. Purposeless groaning is thought to be a manifestation of disinhibition and perseveration due to frontal-subcortical dysfunction. Proper recognition of this phenomenon will help clinicians to avoid unnecessary investigations and treatment (e.g., prescription of opioid medications).

Case of a 19-Year-Old Male with Nocturnal Groaning (Catathrenia) / 수면정신생리

Catathrenia is a rare sleep disease characterized by monotonous groaning sounds that appear to be related with prolonged expiration, commonly experienced during rapid eye movement (REM) sleep. Catathrenia is also known as nocturnal groaning or sleep-related groaning and is currently categorized as a sleep-related breathing disorder. We present a rare case of a 19-year-old male with nocturnal groaning during non-REM sleep. We suggest that if catathrenia is suspected, polysomnography should be utilized to differentiate it from various sleep disorders such as snoring, central sleep apnea, sleep talking, parasomnia, and sleep-related movement disorders.