scholarly journals Catheter ablation of atrial fibrillation: When turn to the right atrium?

2019 ◽  
Vol 36 (1) ◽  
pp. 82-83
Author(s):  
Minglong Chen
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Right Atrium ◽  
The Right

scholarly journals Electroanatomic Mapping and Catheter Ablation of Breakthroughs From the Right Atrium to the Superior Vena Cava in Patients With Atrial Fibrillation

Circulation ◽  
2002 ◽  
Vol 106 (11) ◽  
pp. 1317-1320 ◽  
Author(s):  
Masahiko Goya ◽  
Feifan Ouyang ◽  
Sabine Ernst ◽  
Marius Volkmer ◽  
Matthias Antz ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Superior Vena Cava ◽  
Right Atrium ◽  
Superior Vena ◽  
Vena Cava ◽  
Electroanatomic Mapping ◽  
The Right

scholarly journals Linear Catheter Ablation of the Right Atrium for Rapid Atrial Pacing-Induced Sustained Atrial Fibrillation in Dogs

2012 ◽  
Vol 53 (6) ◽  
pp. 375-382 ◽  
Author(s):  
Ichiro Watanabe ◽  
Yasuo Okumura ◽  
Rikitake Kogawa ◽  
Naoko Sasaki ◽  
Kimie Ohkubo ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Right Atrium ◽  
Atrial Pacing ◽  
The Right

Regional isolation in the right atrium with disruption of intra‐atrial conduction after catheter ablation of atrial tachycardia

2019 ◽  
Vol 30 (10) ◽  
pp. 1773-1785 ◽  
Author(s):  
Steven M. Markowitz ◽  
Daniel Y. Choi ◽  
Foysal Daian ◽  
Christopher F. Liu ◽  
Jim W. Cheung ◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Right Atrium ◽  
Atrial Tachycardia ◽  
The Right

Power and Temperature Guided Radiofrequency Catheter Ablation of the Right Atrium in Pigs

1994 ◽  
Vol 17 (10) ◽  
pp. 1610-1620 ◽  
Author(s):  
ERIK KONGSGAARD ◽  
ARNOLD FOERSTER ◽  
HALFDAN AASS ◽  
STEINAR MADSEN ◽  
JAN P. AMLIE
Keyword(s):  
Catheter Ablation ◽  
Right Atrium ◽  
Radiofrequency Catheter Ablation ◽  
The Right

Acetylcholine release by a stimulus train lowers atrial fibrillation threshold

1987 ◽  
Vol 253 (4) ◽  
pp. H863-H868 ◽  
Author(s):  
D. E. Euler ◽  
P. J. Scanlon
Keyword(s):  
Atrial Fibrillation ◽  
Action Potential ◽  
Right Atrium ◽  
Single Pulse ◽  
Monophasic Action Potential ◽  
Adrenergic Blockade ◽  
The Right ◽  
Alpha Chloralose ◽  
Electrical Stimuli ◽  
Local Release

This study was designed to evaluate the importance of local release of autonomic neuromediators when electrical stimuli are applied to the right atrium to measure the atrial fibrillation threshold (AFT). Experiments were performed in 16 open-chest dogs anesthetized with alpha-chloralose. The dogs were denervated by bilateral transection of the stellates and cervical vagi. The AFT was determined in 11 dogs by delivering either a train of stimuli (14 pulses, 4 ms, 100 Hz) or a single stimulus (10 ms) to the right atrium during its vulnerable period. In eight dogs, beta-adrenergic blockade with timolol (0.1 mg/kg) had no effect on the AFT determined with either method. Atropine (0.2 mg/kg), given after timolol, significantly increased the train-of-pulses AFT from 4.7 +/- 0.4 to 32.3 +/- 4.6 mA (P less than 0.001). The single-pulse AFT increased from 16.5 +/- 1.5 to 17.8 +/- 1.5 mA (P less than 0.05). Atropine had a similar effect on the AFT when it was given in the absence of timolol (n = 3). In five additional dogs, a monophasic action potential was recorded while a 10-mA train was delivered to the atrium during its absolute refractory period. There was marked shortening of the monophasic action potential duration (55 +/- 6 ms) in the first beat after the train. The shortening was totally abolished by atropine (0.2 mg/kg). The results suggest that a train of stimuli liberates local stores of acetylcholine, which cause a shortening of atrial repolarization time and a profound decrease in the current necessary to evoke fibrillation.

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