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Suggs LD, Tonnessen JB, Pavri BB. Differential Effects of Vagal Activation on the Sinus and Atrioventricular Nodes: Report of 2 Cases. JACC Case Rep. 2020;2(11):1748-1752doi: 10.1016/j.jaccas.2020.05.085.
Suggs, L. D., Tonnessen, J. B., & Pavri, B. B. (2020). Differential Effects of Vagal Activation on the Sinus and Atrioventricular Nodes: Report of 2 Cases. JACC. Case reports, 2(11), 1748-1752. https://doi.org/10.1016/j.jaccas.2020.05.085
Suggs, Lauren D, et al. "Differential Effects of Vagal Activation on the Sinus and Atrioventricular Nodes: Report of 2 Cases." JACC. Case reports vol. 2,11 (2020): 1748-1752. doi: https://doi.org/10.1016/j.jaccas.2020.05.085
Suggs LD, Tonnessen JB, Pavri BB. Differential Effects of Vagal Activation on the Sinus and Atrioventricular Nodes: Report of 2 Cases. JACC Case Rep. 2020 Aug 05;2(11):1748-1752. doi: 10.1016/j.jaccas.2020.05.085. eCollection 2020 Sep. PMID: 34317050; PMCID: PMC8311999.
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JACC Case Rep. 2020 Aug 05;2(11):1748-1752. doi: 10.1016/j.jaccas.2020.05.085. eCollection 2020 Sep.

Differential Effects of Vagal Activation on the Sinus and Atrioventricular Nodes: Report of 2 Cases.

JACC. Case reports

Lauren D Suggs, Julia B Tonnessen, Behzad B Pavri

Affiliations

  1. Division of Cardiology, Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
  2. Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania.

PMID: 34317050 PMCID: PMC8311999 DOI: 10.1016/j.jaccas.2020.05.085

Abstract

Vagal activation usually affects both sinus and atrioventricular (AV) nodes, manifesting as sinus slowing accompanied by varying degrees of AV block. AV block accompanying sinus acceleration as during treadmill testing is usually considered pathologic. We report 2 cases of vagally mediated reflex AV block accompanied by sinus tachycardia and acceleration. (

© 2020 The Authors.

Keywords: AV, atrioventricular; ECG, electrocardiographic; autonomic function; electrocardiography; heart block; vagal activation

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