Los problemas de sueño del SFC provienen del ritmo cardíaco?

[elipoarch]

Un interesante estudio asocia los problemas del sueño del los enfermos de Síndrome de Fatiga Crónica a las variaciones del ritmo cardíaco durante el sueño. Comparando los intervalos entre latidos, la estructura del sueño y la somnolencia entre pacientes con SFC y controles sanos, han encontrado diferencias que no aparecen en las polisomnografías que se realizan normalmente. Llegan a la conclusión que los intervalos entre latidos (RRI dynamics) o la actividad del sistema nervioso autónomo durante las fases no-REM del sueño pueden estar asociadas con los problemas de sueño no reparador (y la consecuente somnolencia) en los enfermos de SFC

[t]Heart rate variability during sleep and subsequent sleepiness in patients with chronic fatigue syndrome[/t]
Togo F, Natelson BH.

Educational Physiology Laboratory, Graduate School of Education, The University of Tokyo, Tokyo, Japan. Electronic address: [email protected].

Abstract
We determined whether alterations in heart rate dynamics during sleep in patients with chronic fatigue syndrome (CFS) differed from controls and/or correlated with changes of sleepiness before and after a night in the sleep laboratory. We compared beat-to-beat RR intervals (RRI) during nocturnal sleep, sleep structure, and subjective scores on visual analog scale for sleepiness in 18 CFS patients with 19 healthy controls aged 25-55 after excluding subjects with sleep disorders. A short-term fractal scaling exponent (α1) of RRI dynamics, analyzed by the detrended fluctuation analysis (DFA) method, was assessed after stratifying patients into those who reported more or less sleepiness after the night's sleep (a.m. sleepier or a.m. less sleepy, respectively). Patients in the a.m. sleepier group showed significantly (p<0.05) higher fractal scaling index α1 during non-rapid eye movement (non-REM) sleep (Stages 1, 2, and 3 sleep) than healthy controls, although standard polysomnographic measures did not differ between the groups. The fractal scaling index α1 during non-REM sleep was significantly (p<0.05) higher than that during awake periods after sleep onset for healthy controls and patients in the a.m. less sleepy group, but did not differ between sleep stages for patients in the a.m. sleepier group. For patients, changes in self-reported sleepiness before and after the night correlated positively with the fractal scaling index α1 during non-REM sleep (p<0.05). These results suggest that RRI dynamics or autonomic nervous system activity during non-REM sleep might be associated with disrupted sleep in patients with CFS.

enlace: http://www.ncbi.nlm.nih.gov/pubmed/23499514" onclick="window.open(this.href);return false;

[Matallana]

¡Qué interesante! Muchas gracias

[PEPE78]

Aunque solo sea un hipótesis, es un artículo muy interesante. Ojalá que fuese así, y se pudiesen llegar a mejorar los problemas de sueño, pues son mi máximo impedimento para desenvolverme en el día a día.

Gracias Eli!