scholarly journals Discrete prepotentials with an isoelectric segment at the successful ablation site in the right ventricular outflow tract and pulmonary artery junction in a case with a ventricular arrhythmia

2015 ◽  
Vol 1 (5) ◽  
pp. 348-351 ◽  
Author(s):  
Shinsuke Miyazaki ◽  
Hitoshi Hachiya ◽  
Junji Matsuda ◽  
Takamitsu Takagi ◽  
Tomonori Watanabe ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Ventricular Arrhythmia ◽  
Right Ventricular ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Successful Ablation ◽  
The Right

scholarly journals Life-Threatening Ventricular Arrhythmia and Brugada-Type ST-Segment Elevation Associated With Acute Ischemia of the Right Ventricular Outflow Tract

2017 ◽  
Vol 81 (3) ◽  
pp. 322-329 ◽  
Author(s):  
Rena Nakamura ◽  
Mitsuhiro Nishizaki ◽  
Kiko Lee ◽  
Masato Shimizu ◽  
Hiroyuki Fujii ◽  
...  
Keyword(s):  
Ventricular Arrhythmia ◽  
Right Ventricular ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Acute Ischemia ◽  
St Segment Elevation ◽  
St Segment ◽  
Life Threatening ◽  
The Right

Perioperative Evaluation and Surgical Management of a Patient With a Pericardial Hemangioma Abutting the Right Ventricular Outflow Tract and Main Pulmonary Artery

2019 ◽  
Vol 33 (5) ◽  
pp. 1362-1366
Author(s):  
Tulsi Akikwala ◽  
Dhaval Trivedi ◽  
Gary Kochamba ◽  
Kartik Kansagra ◽  
Sreevathsan Sridhar ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Right Ventricular ◽  
Surgical Management ◽  
Main Pulmonary Artery ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
The Right

Pressure Load-Sensing Assessments of the Right Ventricular Outflow Tract and Main Pulmonary Artery

2011 ◽  
Vol 24 (2) ◽  
pp. 77-80 ◽  
Author(s):  
N. Barka ◽  
M. Kopcak ◽  
T. Kelly ◽  
M. Schendel ◽  
A. Hill ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Right Ventricular ◽  
Main Pulmonary Artery ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Load Sensing ◽  
Pressure Load ◽  
The Right

Electrocardiographic predictors of successful ablation of tachycardia or bigeminy arising in the right ventricular outflow tract

1999 ◽  
Vol 84 (10) ◽  
pp. 1266-1268 ◽  
Author(s):  
Matthew A Flemming ◽  
Hakan Oral ◽  
Michael H Kim ◽  
Hung Fat Tse ◽  
Frank Pelosi ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Successful Ablation ◽  
The Right

scholarly journals Target Characteristics and Voltage Mapping of the Matrix in Idiopathic Premature Ventricular Contractions Originating from the Right Ventricular Outflow Tract

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Zhiyong Zhang ◽  
Xiaofeng Hou ◽  
Zhiyong Qian ◽  
Jianghong Guo ◽  
Jiangang Zou
Keyword(s):  
Right Ventricular ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Premature Ventricular Contractions ◽  
Bipolar Voltage ◽  
Successful Ablation ◽  
Voltage Mapping ◽  
Significant Difference ◽  
The Right

Background. The study was aimed at exploring the electrophysiological characteristics (EPS) of the optimal ablation site and its relationship with electroanatomic voltage mapping (EVM) in idiopathic premature ventricular contractions (PVCs) originating from the right ventricular outflow tract (RVOT). Methods. A total of 28 patients with idiopathic RVOT PVCs underwent successful ablation and EVM using a 3D electroanatomical mapping (CARTO) system. Results. Both bipolar and unipolar EVM showed a similar band-like lower-voltage area (LVA) under the pulmonary valve in all the patients; 21.4% of the targets were located in the band-like LVA. 42.9% of the targets were at the border of the band-like LVA on the bipolar voltage map, but unipolar mapping showed that 53.6% of the targets were located in the band-like LVA, and 35.7% of the targets at the border of the band-like LVA. A significant difference was found in both unipolar and bipolar voltage values between the regions within 0-5 mm above the optimal ablation site and the other regions. A similar difference was observed only in unipolar voltage values below the optimal ablation site. At the ablation site, there were frequent occurrences of a fragmented wave and voltage reversion in the bipolar electrograms, frustrated falling limbs, W bottom, and a QS configuration width > 150  ms in the unipolar electrograms. Conclusions. EVM showed that the band-like LVA was an interesting area for the search of the optimal ablation sites of idiopathic RVOT-PVCs, especially the border area. There was focal microscarring around the ablation targets; some characteristics of EPS proved significant for successful ablation.

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