Spectral analysis of blood pressure variability in atrial fibrillation: The effect of tilting

Valentina D A Corino, Luca T. Mainardi, Federico Lombardi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Aim of this study was to assess changes of blood pressure (BP) variability spectrum in response to a sympathetic stimulation during a tilt-up stress test. Thirty patients (21 males, 69 ±10 years) with AF were included in the study. Surface ECG and non-invasive beat-to-beat BP were recorded for 10 minutes at rest and during tilt (in 19 patients). The systolic and diastolic BP series were resampled at 1Hz using cubic spline interpolation and spectral analysis was performed using autoregressive (AR) models. The total power was decomposed into M contributions, one for each pole. The poles whose frequency was in the Low Frequency (LF, 0.03-0.15 Hz) or High Frequency (HF, 0.15-0.4 Hz) were selected. LF component power increased during tilt in both systolic and diastolic BP (rest vs. tilt: systolic BP: 6.5 ± 5.3 vs. 13.0 ± 13.4 p

Original languageEnglish
Title of host publicationComputing in Cardiology
Pages1203-1206
Number of pages4
Volume40
Publication statusPublished - 2013
Event2013 40th Computing in Cardiology Conference, CinC 2013 - Zaragoza, Spain
Duration: Sep 22 2013Sep 25 2013

Other

Other2013 40th Computing in Cardiology Conference, CinC 2013
CountrySpain
CityZaragoza
Period9/22/139/25/13

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Computer Science(all)

Fingerprint Dive into the research topics of 'Spectral analysis of blood pressure variability in atrial fibrillation: The effect of tilting'. Together they form a unique fingerprint.

  • Cite this

    Corino, V. D. A., Mainardi, L. T., & Lombardi, F. (2013). Spectral analysis of blood pressure variability in atrial fibrillation: The effect of tilting. In Computing in Cardiology (Vol. 40, pp. 1203-1206). [6713599]