Atrial Impulses at the Atrioventricular Node: Arrival versus Conduction during Atrial Fibrillation

2015 ◽  
pp. 100-103
Author(s):  
L. Iozzia ◽  
G. Garoldi ◽  
F. Sandberg ◽  
V. D. A. Corino ◽  
L. T. Mainardi ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Atrioventricular Node

scholarly journals 10-year trend analysis of atrioventricular node ablation in patient with atrial fibrillation: 2005–2014 United State hospitalization

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
L Wu ◽  
B Narasimhan ◽  
A.N Shah ◽  
Y.Y Zheng ◽  
K Bhatia ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Atrioventricular Node ◽  
Health Care Research ◽  
Progressive Increase ◽  
Pharmacological Therapy ◽  
Af Ablation ◽  
Diagnosis Codes ◽  
Increasing Trend ◽  
Quality Guideline ◽  
Pacemaker Insertion

Abstract Introduction Atrial fibrillation (AF) ablation and Atrioventricular Node (AVN) ablation are both important non-pharmacological therapy of AF. In spite of increased availability of AF ablation data, that of AVN ablation per se is limited. Method AF ablation was identified using ICD-9 procedure code with principle diagnosis of AF from United States National Inpatient Sample database 2005–2014. From procedure and diagnosis codes of pacemaker insertion followed by ablation, the cohort who underwent AVN ablation was identified. Patients hospitalization with any diagnosis of other type of arrythmia or epicardial ablation were excluded. Complications were defined as per the Agency for Health Care Research and Quality guideline. Results Total AF ablation was noted to increase from 2005- 2011, and declined steadily from 2011–2014. In contrast, the number of AVN ablations increased from 4505 cases to 5175 (Figure 1). AVN ablation were mainly performed in elderly patient (mean age 72), and increasingly in patient with higher Charlson Commobidity index (0.9 to 1.7)and higher CHA2DS2-VASc score (2.8 to 3.7) (Table 1). An increasing trend in procedure complications but no significant change in mortalitywere observed with AVN ablation. Progressive increase in the length of stay and the hospitalization cost were also observed over the years with AVN ablation. Conclusion AVN ablation is being performed at a steady volume, and increasingly in patients with multiple comorbidities. This trend although was not associated with increased mortality, it was associated with increased hospital complications. Funding Acknowledgement Type of funding source: None

Acute and Long-Term Safety of Same-Day Pacemaker Implant and Atrioventricular Node Ablation for Management of Atrial Fibrillation

2018 ◽  
Vol 27 ◽  
pp. S146
Author(s):  
A. Quah ◽  
M. Tung ◽  
P. Novak ◽  
C. Lane ◽  
L. Sterns ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Atrioventricular Node

Introduction

ESC CardioMed ◽  
2018 ◽  
pp. 2049-2050
Author(s):  
Carina Blomström-Lundqvist
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Atrial Tachycardia ◽  
Atrioventricular Node ◽  
Supraventricular Arrhythmia ◽  
Atrioventricular Nodal Reentrant Tachycardia ◽  
Reentrant Tachycardia ◽  
Atrioventricular Reentrant Tachycardia ◽  
Dc Cardioversion ◽  
Premature Beats

Supraventricular arrhythmias encompass atrial premature beats, supraventricular tachycardias (SVTs), and atrial fibrillation. SVT is used to describe tachycardias in which the mechanism involves tissue from the His bundle or above, thus including atrial tachycardias, atrioventricular nodal reentrant tachycardia, and atrioventricular reentrant tachycardia due to accessory pathways. Atrial fibrillation is not included among the SVTs and is described elsewhere. The term tachycardia refers to atrial and/or ventricular rates greater than 100 beats per minute at rest. Atrial premature beats, the most common supraventricular arrhythmia, can be seen in Holter recordings in the majority of healthy individuals, and increase in frequency with age and presence of structural heart disease. Paroxysmal SVTs that can be terminated by vagal manoeuvres are usually reentrant tachycardias involving the atrioventricular node, such as atrioventricular nodal reentrant tachycardia or atrioventricular reentrant tachycardia. Symptoms may result in a poor quality of life. Rarely, patients with the Wolff–Parkinson–White syndrome develop atrial fibrillation that may degenerate into ventricular fibrillation in case the anterograde refractory period of the accessory pathway is very short and permanent forms of SVTs result in tachycardiomyopathy with left ventricular dysfunction. Paroxysmal SVT can be terminated by vagal manoeuvres, adenosine, overdrive pacing, and DC cardioversion. Atrial flutter, the most common atrial tachycardia, is a macro-reentrant atrial tachycardia that can be terminated by drugs, overdrive atrial pacing, and DC cardioversion. Most SVTs can be successfully treated by catheter ablation facilitated by modern electroanatomical mapping systems. Long-term antiarrhythmic drug therapy may be required for patients who are not suitable for or cured by catheter ablation.

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