Abstract
Vagus nerve stimulation (VNS) is used in pharmaco-resistant epilepsy to decrease the number of seizures. Although it is well known that VNS affects respiration, there are only a few reports concerning an effect of VNS on heart rate or heart rate variability (HRV). We investigated the relationship between respiratory frequency and the high frequency (HF) domain of the discrete Fourier transform (DFT) of the RR interval function during night sleep recordings of ten subjects treated with VNS. Our results show that VNS shifts the frequency of maximal power spectrum density (PSD) in the HF-band, decreases the related PSD and induces a partial cardiorespiratory decoupling.
| Original language | English |
|---|---|
| Pages (from-to) | 338-347 |
| Number of pages | 10 |
| Journal | Medical and Biological Engineering and Computing |
| Volume | 44 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Apr 2006 |
Funding
Acknowledgements We thank the technicians staff of University Hospital for the data recordings. This work was supported by Jules Verne University of Picardie, Regional University Hospital, Homme, Technologie Systèmes Complexes program (HTSC), Conseil Régional de Picardie, European Social Funds, Fondation pour l’Avenir and Cyberonics.
Keywords
- Cardiorespiratory coupling
- HRV
- Vagus nerve stimulation