S‐R difference in V1‐V2 is a novel criterion for differentiating the left from right ventricular outflow tract arrhythmias

Aim The correct estimation of the VA origin as RVOT or LVOT results in reduced ablation duration reduced radiation exposure and decreased number of vascular access. In our study, we aimed to detect the predictive value of S‐R difference in V1‐V2 for differentiating the left from right ventricular ou...

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Bibliographic Details
Published in:Annals of noninvasive electrocardiology 2018-05, Vol.23 (3), p.e12516-n/a
Main Authors: Kaypakli, Onur, Koca, Hasan, Sahin, Durmus Yıldıray, Karataş, Fadime, Ozbicer, Suleyman, Koç, Mevlüt
Format: Article
Language:English
Subjects:
Ablation
Adult
Arrhythmia
Cardiac arrhythmia
Catheters
Criteria
Diagnosis, Differential
EKG
Electrocardiography - methods
Exposure
Female
Heart
Heart Ventricles - physiopathology
Humans
Localization
Male
Medical instruments
Middle Aged
Original
Origins
Outflow
Patients
Predictions
Radiation
Radiation effects
radiofrequency ablation
Reproducibility of Results
Retrospective Studies
Sensitivity analysis
Sensitivity and Specificity
S‐R difference in V1‐V2
Ventricle
ventricular arrhythmias
Ventricular Outflow Obstruction - complications
Ventricular Outflow Obstruction - diagnosis
Ventricular Outflow Obstruction - physiopathology
Ventricular Premature Complexes - complications
Ventricular Premature Complexes - diagnosis
Ventricular Premature Complexes - physiopathology
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Summary:Aim The correct estimation of the VA origin as RVOT or LVOT results in reduced ablation duration reduced radiation exposure and decreased number of vascular access. In our study, we aimed to detect the predictive value of S‐R difference in V1‐V2 for differentiating the left from right ventricular outflow tract arrhythmias. Methods We included 123 patients with symptomatic frequent premature ventricular outflow tract contractions who underwent successful catheter ablation (70 male, 53 female; mean age 46.2 ± 13.9 years, 61 RVOT, 62 LVOT origins). S‐R difference in V1‐V2 was calculated with this formula on the 12‐lead surface ECG: (V1S + V2S) – (V1R + V2R). Conventional ablation was performed in 101 (82.1%) patients, CARTO electroanatomic mapping system was used in 22 (17.9%) patients. Results V1‐2 SRd was found to be significantly lower for LVOT origins than RVOT origins (p 
ISSN:1082-720X
1542-474X
DOI:10.1111/anec.12516