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  • Title: Coronary sinus mapping to differentiate left versus right ventricular outflow tract tachycardias.
    Author: Arya A, Haghjoo M, Emkanjoo Z, Sadr-Ameli MA.
    Journal: Europace; 2005 Sep; 7(5):428-32. PubMed ID: 16087105.
    Abstract:
    Outflow tract ventricular tachycardia (OT-VT) can originate from several different segments of the outflow tract. Various ECG criteria have been proposed for localization of OT-VTs. We present two patients, one with left and one with right OT-VT. We used local ventricular electrograms in the coronary sinus to localize the focus of the OT-VT. Mapping of local ventricular electrograms in the coronary sinus may be a simple and effective method for differentiating right versus left ventricular outflow tract tachycardias. However, the diagnostic value and precision of this method should be evaluated in a series of patients before its implementation in the OT-VT ablation decision algorithm.
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