A new thermoelectric ECG model: Influence of bundle branch block and variations in body temperature

Abstract The present work proposes a novel 2D thermoelectric model to investigate the behavior of specific pathological situation, such as bundle branch block. This model incorporates the heart, lungs, torso, and blood cavities. The dynamics of this system are governed by the Fitzhugh-Nagumo equations that simulate the electrical activity of cardiac myocytes coupled with temperature equations. Then, the parameters of the bundle branch block are considered to analyze their impact on the electrocardiogram. As results, we establish that the presence of bundle branch block significantly affects electrocardiogram morphology, leading to changes in wave amplitude and interval durations. Moreover, our results reveal that variations in body temperature deteriorate this pathological state, leading to further distortions of the electrocardiogram. These results clearly show that our thermoelectric model provides valuable insights into the behavior of bundle branch block under temperature variations. This knowledge could contribute to the development of new treatment and management strategies using thermal control to improve outcomes for patients with similar symptoms.