Sleep EEG Characteristics in Young and Elderly Patients with Obstructive Sleep Apnea Syndrome
Psychiatry Investigation
;
: 217-221, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-44784
ABSTRACT
OBJECTIVE:
In the present study, it was hypothesized that the sleep electroencephalogram (EEG) characteristics of young (55 yrs) OSAS patients would differ.METHODS:
We analyzed 76 sleep EEG recordings from OSAS patients (young group n=40, mean age 24.3±4.9 yrs; elderly group n=36, mean age 59.1±4.9 yrs), which were obtained during nocturnal polysomnography. The recordings were assessed via spectral analysis in the delta (0.5–4.5 Hz), theta (4.5–8 Hz), alpha (8–12 Hz), beta (12–32 Hz), slow sigma (11–13 Hz), and fast sigma (13–17 Hz) frequency bands.RESULTS:
Apnea Hypopnea Index (AHI) and sleep efficiency (%) did not differ significantly between the two groups (19.8±14.4 vs. 25.9±16.0, p=0.085; 84.4±12.6 vs. 80.9±11.0, p=0.198, respectively). After adjusting for gender, the slow/fast sigma ratio was not significantly correlated with AHI in the elderly group (r=-0.047, p=0.790) but AHI was inversely correlated with the slow/fast sigma ratio in the young group (r=-0.423, p=0.007). A multiple linear regression analysis revealed that a higher AHI was related with a lower slow/fast sigma ratio in the young group (β=-0.392, p=0.028) but not the elderly.CONCLUSION:
In the present study, sleep EEG activity differed between young and elderly OSAS patients. The slow/fast sigma ratio was associated with OSAS severity only in young patients, suggesting that young OSAS patients may have a distinctive brain plasticity compared with elderly patients.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Apneia
/
Plásticos
/
Encéfalo
/
Modelos Lineares
/
Polissonografia
/
Apneia Obstrutiva do Sono
/
Eletroencefalografia
Limite:
Idoso
/
Humanos
Idioma:
Inglês
Revista:
Psychiatry Investigation
Ano de publicação:
2016
Tipo de documento:
Artigo
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