Investigating the complexity of heart rate variability during anesthesia / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 554-557, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-342666
ABSTRACT
By use of the complexity analysis indices (approximate entropy, complexity), the heart rate variability signals obtained from 38 subjects' ECG during anesthesia were analyzed. The results showed that there is an obvious chaos change of heart rate variability during anesthesia, both the complexity and approximate entropy of heart rate variability during anesthesia are evidently less than those during consciousness (P<0.05). In this dissertation, we decompose the heart rate variability during anesthesia into 1/f part and non-fractal part, and then analyze these parts. The results reveal that the sensitivity of the complexity indices can be improved by decomposing the heart rate variability.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Physiology
/
Autonomic Nervous System
/
Signal Processing, Computer-Assisted
/
Models, Statistical
/
Entropy
/
Electrocardiography
/
Heart Rate
/
Anesthesia
Type of study:
Risk factors
Limits:
Adult
/
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2004
Type:
Article
Similar
MEDLINE
...
LILACS
LIS