Format

Send to

Choose Destination
IEEE Eng Med Biol Mag. 2009 Nov-Dec;28(6):72-8. doi: 10.1109/MEMB.2009.934621.

Complexity of the short-term heart-rate variability.

Author information

1
Department ESAII, Universitat Politecnica de Catalunya, C/Pau Gargallo 5, 08028 Barcelona, Spain. jose.fernando.valencia@upc.edu

Abstract

This work has proposed a methodology based on the concept of entropy rates to study the complexity of the short-term heart-rate variability (HRV) for improving risk stratification to predict sudden cardiac death (SCD) of patients with established ischemic-dilated cardiomyopathy (IDC). The short-term HRV was analyzed during daytime and nighttime by means of RR series. An entropy rate was calculated on the RR series, previously transformed to symbol sequences by means of an alphabet. A statistical analysis permitted to stratify high- and low-risk patients of suffering SCD, with a specificity (SP) of 95% and sensitivity (SE) of 83.3%.

PMID:
19914891
DOI:
10.1109/MEMB.2009.934621
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for IEEE Engineering in Medicine and Biology Society
Loading ...
Support Center