Why the study?
Does right ventricular apex pacing during orthodromic atrioventricular reentrant tachycardia improve bypass tract localization in patients with Wolff-Parkinson-White syndrome?
Does right ventricular apex pacing during orthodromic atrioventricular reentrant tachycardia improve bypass tract localization in patients with Wolff-Parkinson-White syndrome?
The entrainment index is a feasible and effective method for localizing bypass tracts in patients with Wolff-Parkinson-White syndrome, offering higher derivability than the preexcitation index.
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Entrainment index may aid bypass tract localization during RV pacing in AVRT; leaves open prospective validation before changing practice in WPW.
McBride et al. (1990) studied this question.
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