Successful cryoablation of ventricular extrasystoles originating from the vicinity of the left anterior fascicle.
Takatsugu KajiyamaYusuke KondoMasahiro NakanoKazuo MiyazawaMiyo NakanoTomohiko HayashiRyo ItoHaruhiro TakahiraYoshio KobayashiPublished in: Journal of arrhythmia (2020)
A 32-year-old male received catheter ablation of frequent ventricular extrasystoles (VEs). His electrocardiogram showed monomorphic VEs with an inferior axis and early precordial transitional zone. During electrophysiological testing, a 10-pole catheter positioned in the left ventricular outflow tract recorded sharp pre-potentials just before the ventricular activation during VEs as well as sinus beats. Three-dimensional mapping was performed by annotating the sharp pre-potentials to reveal that the earliest activation site was deemed to be close to the left anterior fascicle. A cryoablation catheter was introduced into the left ventricle and freezing for 240 seconds successfully eliminated the clinical VEs without any complications.
Keyphrases
- catheter ablation
- left ventricular
- left atrial
- atrial fibrillation
- left atrial appendage
- heart failure
- mitral valve
- acute myocardial infarction
- hypertrophic cardiomyopathy
- high resolution
- ultrasound guided
- pulmonary artery
- pulmonary hypertension
- genome wide
- cardiac resynchronization therapy
- risk factors
- coronary artery
- dna methylation
- pulmonary arterial hypertension