Position-dependent changes in vagal modulation after coronary artery bypass grafting

  • Authors:
  • Jurij-Matija Kalisnik;Viktor Avbelj;Roman Trobec;Borut Gersak

  • Affiliations:
  • Department of Cardiovascular Surgery, University Medical Center, Zaloska 7, SI-1000 Ljubljana, Slovenia;Department of Communications and Computer Networks, Jozef Stefan Institute, Jamova, SI-1000 Ljubljana, Slovenia;Department of Communications and Computer Networks, Jozef Stefan Institute, Jamova, SI-1000 Ljubljana, Slovenia;Department of Cardiovascular Surgery, University Medical Center, Zaloska 7, SI-1000 Ljubljana, Slovenia

  • Venue:
  • Computers in Biology and Medicine
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

Reduced cardiac vagal modulation increases propensity to arrhythmias. Right decubitus position is a vagal enhancer in coronary and congestive heart disease. We evaluated vagal modulation before and after coronary artery bypass grafting (CABG) in 30 patients. Heart rate variability (HRV) indexes in frequency domain were calculated from 10-min digital electrocardiograms. Kolmogorov-Smirnov and paired t-tests were applied, p