Successful Radiofrequency Catheter Ablation (successful + radiofrequency_catheter_ablation)

Distribution by Scientific Domains


Selected Abstracts


Successful Radiofrequency Catheter Ablation of Epicardial Left Ventricular Outflow Tract Tachycardia from the Anterior Interventricular Coronary Vein

JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 12 2005
YASUHIRO HIRASAWA M.D.
We report a case of idiopathic left ventricular outflow tract (LVOT) tachycardia that was eliminated by a radiofrequency application from the anterior interventricular coronary vein (AIV). The ECG exhibited QRS complexes with an inferior axis and atypical left bundle branch block pattern with an early transition of the precordial R waves at V3. Several radiofrequency applications from the coronary cusps and endocardial LVOT were not effective. Radiofrequency applications in the AIV, where the activation preceded the onset of the QRS by 30 msec, successfully eliminated the tachycardia. The AIV may be an optional site for radiofrequency ablation of idiopathic epicardial LVOT tachycardia. [source]


Successful Radiofrequency Catheter Ablation of Ventricular Tachycardia Originating from Underneath the Mechanical Prosthetic Aortic Valve

PACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 5 2008
TAKUMI YAMADA M.D.
A 67-year-old man who developed sustained ventricular tachycardia (VT) 4 years after a prosthetic aortic valve replacement, underwent electrophysiologic testing and catheter ablation. The mechanism of the VT was suggested to be triggered activity because the VT could be induced by programmed ventricular stimulation, and burst ventricular pacing demonstrated overdrive suppression without a transient entrainment. Successful catheter ablation using a transseptal approach was achieved underneath the mechanical prosthetic aortic valve on the blind side for that approach. This case demonstrated that catheter mapping and ablation of the entire LV using a transseptal approach might be possible. [source]


Radiofrequency Catheter Ablation of Idiopathic Ventricular Tachycardia Originating in the Main Stem of the Pulmonary Artery

JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 3 2002
CARL TIMMERMANS M.D.
Idiopathic Pulmonary Artery Ventricular Tachycardia. We report the case of a patient in whom successful radiofrequency catheter ablation of an idiopathic ventricular tachycardia (VT) originating in the main stem of the pulmonary artery was performed. After successful ablation of the index arrhythmia, which was an idiopathic right ventricular outflow tract VT, a second VT with a different QRS morphology was reproducibly induced. Mapping of the second VT revealed the presence of myocardium approximately 2 cm above the pulmonary valve. Application of radiofrequency energy at this site resulted in termination and noninducibility of this VT. After 6-month follow-up, the patient remained free from VT recurrences. [source]


Successful Catheter Ablation of Reentrant Junctional Tachycardia in a Patient with Asplenia Syndrome before Total Cavo-Pulmonary Connection

PACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 5 2010
KEIKO TOYOHARA M.D.
Asplenia syndrome is commonly associated with complex structural cardiac malformations, and junctional tachycardia (JT), which may compromise hemodynamic status, has been reported in association with asplenia syndrome.1,We report successful radiofrequency catheter ablation of reentrant JT in a patient with asplenia syndrome. (PACE 2010; e43,e45) [source]