Clinical efficacy of open‐irrigated electrode cooled with half‐normal saline for initially failed radiofrequency ablation of idiopathic outflow tract ventricular arrhythmias

2019 ◽  
Vol 30 (9) ◽  
pp. 1508-1516 ◽  
Author(s):  
Fa‐Po Chung ◽  
Jennifer Jeanne B. Vicera ◽  
Yenn‐Jiang Lin ◽  
Shih‐Lin Chang ◽  
Li‐Wei Lo ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Clinical Efficacy ◽  
Normal Saline ◽  
Ventricular Arrhythmias ◽  
Outflow Tract ◽  
Irrigated Electrode

scholarly journals Radiofrequency Ablation Using an Open Irrigated Electrode Cooled With Half-Normal Saline

2017 ◽  
Vol 3 (10) ◽  
pp. 1103-1110 ◽  
Author(s):  
Duy T. Nguyen ◽  
Edward P. Gerstenfeld ◽  
Wendy S. Tzou ◽  
Paul T. Jurgens ◽  
Lijun Zheng ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Normal Saline ◽  
Irrigated Electrode

scholarly journals Discrete potentials guided radiofrequency ablation for idiopathic outflow tract ventricular arrhythmias

EP Europace ◽  
2014 ◽  
Vol 17 (3) ◽  
pp. 453-460 ◽  
Author(s):  
E. Liu ◽  
G. Xu ◽  
T. Liu ◽  
L. Ye ◽  
Q. Zhang ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Ventricular Arrhythmias ◽  
Outflow Tract

Implication of the distinctive bipolar intracardiac electrograms for ventricular arrhythmias arising from different regions of ventricular outflow tract

EP Europace ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. 1367-1375
Author(s):  
Jia Li ◽  
Weiqian Lin ◽  
Cheng Zheng ◽  
Chi Zhang ◽  
Jiji Yu ◽  
...  
Keyword(s):  
Ventricular Arrhythmias ◽  
Ventricular Outflow Tract ◽  
High Amplitude ◽  
Outflow Tract ◽  
Correct Identification ◽  
Aortic Sinus ◽  
Distinctive Features ◽  
Long Duration ◽  
Target Sites ◽  
First Time

Abstract Aims To investigate the characteristics of bipolar intracardiac electrograms (bi-EGMs) in target sites of ventricular arrhythmias (VAs) originating from different regions of ventricular outflow tract (VOT). Methods and results Two hundred and seventy patients undergoing first-time ablation for VAs originated from distal great cardiac vein (DGCV), aortic sinus cusps (ASCs), or pulmonary sinus cusps (PSCs) were enrolled in present study. Local intracardiac bipolar recordings on 243 successful sites and 506 attempted but unsuccessful ablation sites were analysed. Specific potentials in bi-EGMs on successful sites were more common compared with unsuccessful sites (76.95%, 187/243 vs. 25.49%, 129/506, P < 0.05). A total of 60.00% (81/135) patients in ASCs group presented a presystolic short-duration fractionated potential, higher than 23.21% (13/56) in DGCV and 23.08% (12/52) in PSCs (all P < 0.05); 44.23% (23/52) patients in PSC group showed a presystolic high-amplitude discrete potential, while 1.79% (1/56) in DGCV and 2.22% (3/135) in ASCs (all P < 0.05); 41.07% (23/56) patients in DGCV group showed bi-EGMs of presystolic long-duration multicomponent fractionated potential, which was significantly higher than 3.85% (2/52) in PSCs and 4.44%(6/135) in ASCs (all P < 0.05). Conclusion Distinctive morphology of bi-EGMs during VAs can be found in different regions of VOT, which probably due to changes in the arrangements of myocardial sleeves. Correct identification and better understanding of the distinctive features of these bi-EGMs with regards to the anatomic location was important, the presence of specific potentials may add help in successful ablation.

scholarly journals P1114Electrocardiographic algorithms to guide management strategy of outflow tract ventricular arrhythmias

2017 ◽  
Vol 38 (suppl_1) ◽  
Author(s):  
B. Ludwik ◽  
K. Deutsch ◽  
M. Mazij ◽  
J. Sledz ◽  
A. Morka ◽  
...  
Keyword(s):  
Ventricular Arrhythmias ◽  
Management Strategy ◽  
Outflow Tract
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