Interpolation over ectopic beats increases low frequency power in heart rate variability spectra

Author

Birkett, C.L. ; Kienzle, M.G. ; Myers, G.A.

Author_Institution

Iowa Univ., IA, USA

fYear

1991

fDate

23-26 Sep 1991

Firstpage

257

Lastpage

259

Abstract

The authors compared spectra of heart rate variability (HRV) computed from 24 and 48 hour Holter tapes on 34 patients with congestive heart failure. Spectra on each patient were computed in two ways: (A) Segments with ectopic beats were included in the analysis. In this method, the intervals corresponding to ectopic beats and three beats following the last ectopic beat were computed by interpolation, and (B) Segments with ectopic beats were discarded. Spectral components of HRV in the low (0-0.05 Hz) and mid (0.05-0.15 Hz) frequency ranges were significantly (p<0.05) higher in method A than in method B. High (0.02-0.5 Hz) frequency components of the spectra were not significantly different between these two types of analysis

Keywords

electrocardiography; interpolation; spectral analysis; 0 to 0.5 Hz; 24 hr; 48 hr; Holter tapes; congestive heart failure; heart rate variability spectra; interpolation over beats; low frequency power; Analysis of variance; Biomedical computing; Biomedical engineering; Cities and towns; Frequency; Heart rate variability; Interpolation; Power engineering and energy; Power engineering computing; Spline;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1991, Proceedings.

Conference_Location

Venice

Print_ISBN

0-8186-2485-X

Type

conf

DOI

10.1109/CIC.1991.169094

Filename

169094