Conditions associated with REM sleep behaviour disorder: Description of a hospital series. / Patologías asociadas al trastorno de conducta de sueño REM. Descripción de una serie hospitalaria.

INTRODUCTION: REM sleep behaviour disorder (RBD) is characterised by violent behaviours (screaming, kicking, vivid dreams) during REM sleep. It has a prevalence of 1% to 2% of the general population and is especially frequent in men and the population older than 60. In the last decade, RBD has been suggested to be a prodrome of neurodegenerative disease. We analysed associated neurological diseases and responses to drug treatment in 33 patients with RBD treated in the multidisciplinary sleep disorders unit at Hospital Infanta Sofía. PATIENTS AND METHODS: We conducted an observational descriptive retrospective analysis of patients diagnosed with RBD and treated in our multidisciplinary sleep disorders unit between October 2012 and December 2015. We recorded age, sex, associated diseases, and treatments administered to these patients. RESULTS: A total of 365 patients were attended at our unit, including 33 with RBD: 13 women (40%) and 20 men (60%). Mean age was 62.72 years. An associated disorder was identified in 48%, with the most common being mild cognitive impairment (69%). The percentage of patients with RBD and an associated disorder among patients older than 60 was 68%. Eighty-two percent of the patients required treatment. The most commonly used drug was clonazepam (76%), followed by melatonin (9%), gabapentin (6%), and trazodone (3%). DISCUSSION: In our series, 48% of the patients had an associated disorder. The likelihood of detecting an associated disorder increases with patients' age. The vast majority of patients required drug treatment due to symptom severity; the most frequently administered drug was clonazepam (76%).

[Sleep apnoea-hypopnoea syndrome and narcolepsy. Description of a series of hospital patients]. / Sindrome de apneas-hipopneas y narcolepsia. Descripcion de una serie hospitalaria.

INTRODUCTION: Sleep disorders are highly prevalent among the general population, although very few cases of sleep apnoea-hypopnoea syndrome (SAHS) have been reported in patients with narcolepsy. This study reviews the sleep disorders found in patients with narcolepsy, the prevalence of SAHS associated with these patients and their response to the different treatments. PATIENTS AND METHODS: We conducted an observation-based retrospective descriptive analysis of 25 patients diagnosed with narcolepsy, who were treated in our centre between October 2012 and December 2016. RESULTS: Of 470 patients evaluated in the specialised neurology consultation unit, 25 patients were diagnosed with narcolepsy (5.31%); 65% were males and the remaining 35% were females; the mean age at the time of diagnosis was 40 years. 60% presented other associated sleep disorders, the most frequent being SAHS (36%). The efficacy rate of treatment with continuous positive airway pressure (CPAP) is 66% in patients with SAHS with an indication of CPAP. CONCLUSIONS: Altogether, 60% of patients with narcolepsy have a second associated sleep disorder (greater than the incidence of coexistence in the general population, of 20-25% of patients), and those reported are also the most frequent among the general population (SAHS, restless legs syndrome, periodic limb movement disorder). 36% of patients with narcolepsy have SAHS as an associated condition. Of these, 78% have reached a suitable degree of control over respiratory events; 57% have achieved control with CPAP, and the remaining 43% did not require CPAP for event correction with other methods.

TITLE: Sindrome de apneas-hipopneas y narcolepsia. Descripcion de una serie hospitalaria.Introduccion. Los trastornos del sueño son muy prevalentes en la poblacion general; sin embargo, la asociacion de sindrome de apneas-hipopneas (SAHS) en pacientes con narcolepsia se ha descrito en pocas ocasiones. Se revisan los trastornos del sueño encontrados en pacientes con narcolepsia, la prevalencia de SAHS asociado a estos pacientes y su respuesta a los tratamientos. Pacientes y metodos. Analisis descriptivo retrospectivo observacional de 25 pacientes, con diagnostico de narcolepsia, atendidos en nuestro centro desde octubre de 2012 hasta diciembre de 2016. Resultados. De 470 pacientes valorados en la consulta monografica de neurologia, hemos diagnosticado a 25 pacientes con narcolepsia (5,31%); el 65% eran hombres, y el 35%, mujeres. Edad media en el momento del diagnostico: 40 años. El 60% presenta otros trastornos del sueño asociados, el mas frecuente es el SAHS (36%). La eficacia del tratamiento con presion aerea positiva continua nasal (CPAP) es del 66% en los pacientes con SAHS con indicacion de CPAP. Conclusiones. El 60% de los pacientes con narcolepsia asocia un segundo trastorno del sueño (mayor que la incidencia de coexistencia en la poblacion general, del 20-25% de los pacientes), y los descritos tambien son los mas frecuentes en la poblacion general (SAHS, sindrome de piernas inquietas, movimientos periodicos de las piernas). El 36% de los pacientes con narcolepsia asocia SAHS. De ellos, en el 78% se ha conseguido un control de eventos respiratorios adecuado; el 57% se ha controlado con CPAP y el 43% restante no ha precisado CPAP por correccion de eventos con otros metodos.