Basic Research in Cardiology

, 114:41 | Cite as

Carotid baroreceptor stimulation suppresses ventricular fibrillation in canines with chronic heart failure

  • Jing Wang
  • Mingyan Dai
  • Quan Cao
  • Qiao Yu
  • Qiang Luo
  • Ling Shu
  • Yijie Zhang
  • Mingwei BaoEmail author
Original Contribution


Carotid baroreceptor stimulation (CBS) has been shown to improve cardiac dysfunction and pathological structure remodelling. This study aimed to investigate the effects of CBS on the ventricular electrophysiological properties in canines with chronic heart failure (CHF). Thirty-eight beagles were randomized into control (CON), CHF, low-level CBS (LL-CBS), and moderate-level CBS (ML-CBS) groups. The CHF model was established with 6 weeks of rapid right ventricular pacing (RVP), and concomitant LL-CBS and ML-CBS were applied in the LL-CBS and ML-CBS groups, respectively. After 6 weeks of RVP, ventricular electrophysiological parameters and left stellate ganglion (LSG) neural activity and function were measured. Autonomic neural remodelling in the LSG and left ventricle (LV) and ionic remodelling in the LV were detected. Compared with the CHF group, both LL-CBS and ML-CBS decreased spatial dispersion of action potential duration (APD), suppressed APD alternans, reduced ventricular fibrillation (VF) inducibility, and inhibited enhanced LSG neural discharge and function. Only ML-CBS significantly inhibited ventricular repolarization prolongation and increased the VF threshold. Moreover, ML-CBS inhibited the increase in growth-associated protein-43 and tyrosine hydroxylase-positive nerve fibre densities in LV, increased acetylcholinesterase protein expression in LSG, and decreased nerve growth factor protein expression in LSG and LV. Chronic RVP resulted in a remarkable reduction in protein expression encoding both potassium and L-type calcium currents; these changes were partly amended by ML-CBS and LL-CBS. In conclusion, CBS suppresses VF in CHF canines, potentially by modulating autonomic nerve and ion channels. In addition, the effects of ML-CBS on ventricular electrophysiological properties, autonomic remodelling, and ionic remodelling were superior to those of LL-CBS.


Carotid baroreceptor stimulation Ventricular arrhythmias Left stellate ganglion Autonomic remodelling Ionic remodelling 



The authors are grateful for kind support from Dan Hu1,2,3, Yanhong Tang1,2,3, Xi Wang1,2,3 and Teng Wang1,2,3 (1Renmin Hospital of Wuhan University; 2Cardiovascular Research Institute, Wuhan University; 3Hubei Key Laboratory of Cardiology, Wuhan, China). This work was supported by the National Natural Science Foundation of China [Grant numbers 81570460, 81770507, 81700443]; the Health and Family Planning Commission Key Support Project of Hubei Province [Grant number WJ2017Z003], and the Fundamental Research Funds for the Central Universities [Grant number 2042017kf0064].

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Jing Wang
    • 1
    • 2
    • 3
  • Mingyan Dai
    • 1
    • 2
    • 3
  • Quan Cao
    • 1
    • 2
    • 3
  • Qiao Yu
    • 1
    • 2
    • 3
  • Qiang Luo
    • 1
    • 2
    • 3
  • Ling Shu
    • 1
    • 2
    • 3
  • Yijie Zhang
    • 1
    • 2
    • 3
  • Mingwei Bao
    • 1
    • 2
    • 3
    Email author
  1. 1.Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanPeople’s Republic of China
  2. 2.Cardiovascular Research InstituteWuhan UniversityWuhanPeople’s Republic of China
  3. 3.Hubei Key Laboratory of CardiologyWuhanPeople’s Republic of China

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