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Variation of QRS morphology of premature ventricular contractions originate from the left‐ventricular outflow tract during ablation
Author(s) -
Qifang Liu,
Ye Tian,
Zhi Jiang,
Jing Huang,
Yidong Zhao,
Long Yang
Publication year - 2019
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/jce.14228
Subject(s) - medicine , cardiology , ablation , ventricular outflow tract , qrs complex , outflow , aortic sinus , catheter ablation , aorta , physics , meteorology
Abstract Idiopathic ventricular arrhythmias originating from the aortic sinus of Valsalva often show preferential conduction to the right‐ventricular outflow tract, which may render radiofrequency ablation more difficult. We describe a patient with symptomatic premature ventricular contractions of left‐ventricular outflow tract origin presenting with a variation of QRS morphology during ablation. The correlation between the characteristics of local voltage potentials and the real origin site of the ventricular arrhythmia is discussed.