Analysis of a Baroreflex Model for the Study of the Chronotropic Response to Vagal Nerve Stimulation

David Ojeda (1) , Virginie Le Rolle (1, 2) , Olivier Rossel (3) , Nicole Karam (4, 5) , Albert Hagège (6, 4, 5) , Jean-Luc Bonnet (7) , Philippe Mabo (8, 1) , Guy Carrault (1) , Alfredo I. Hernandez (1)

1 LTSI - Laboratoire Traitement du Signal et de l'Image
2 Centre Hospitalier Universitaire [Rennes]
3 DEMAR - Artificial movement and gait restoration
4 HEGP - Hôpital Européen Georges Pompidou [APHP]
5 PARCC - UMR-S U970 - Paris-Centre de Recherche Cardiovasculaire
6 Service de cardiologie [CHU HEGP]
7 Sorin Group [Clamart]
8 Service de cardiologie et maladies vasculaires [Rennes] = Cardiac, Thoracic, and Vascular Surgery [Rennes]

This paper describes the integration of computational models of the cardiovascular system, the cardiac electrical activity and the baroreceptor reflex of the autonomic nervous system, with a model representing vagal nerve stimulation (VNS). Sensitivity analyses are performed in order to find the model parameters that produce significant effects on heart rate (chronotropic effect). The most significant parameters are adjusted in order to reproduce real data acquired from sheep suffering from heart failure, during VNS periods. Results show the potential of the model to generate realistic chronotropic responses to VNS.

Keywords: Heart-failure; System; Dog

Domains: Life Sciences [q-bio]; Bioengineering

David Ojeda, Virginie Le Rolle, Olivier Rossel, Nicole Karam, Albert Hagège, et al.. Analysis of a Baroreflex Model for the Study of the Chronotropic Response to Vagal Nerve Stimulation. NER: Neural Engineering, Apr 2015, Montpellier, France. pp.541-544, ⟨10.1109/NER.2015.7146679⟩. ⟨hal-01380108⟩