Improve the accuracy of OTVA localization and broaden clinical
applications
Tanner
et al.[18] reported
that
stepwise endocardial and epicardial mapping using up to six anatomic
approaches could lead to successful RFCA. In all patients, activation
mapping was performed from the RVOT, including the pulmonary cusp or
trunk. If ablation was not achieved, epicardial mapping within the
GCV-AIV was performed. If ablation still failed, mapping of the ASC and
left ventricular endocardium below the ASC was performed via the femoral
artery. Owing to its benefit–risk ratio, the subxiphoid approach was
avoided.
The use of this simple ECG measurement algorithm
can
improve the accuracy of OTVA localization and has the advantage of
procedural simplification. Moreover, our algorithm avoided complicated
calculations and confusing diagnostic results acquired from different
ECG parameters, keeping the diagnostic algorithm simple, and contributes
to
generalized clinical application.