Isopotential surface maps identified six types of pre-excitation patterns, providing more information on the location of the pre-excited area than conventional ECGs in 42 WPW patients.
Observational (n=42)
42 patients with Wolff-Parkinson-White syndrome.
Isopotential surface maps vs Conventional ECGs
Localization of the pre-excited area
Heart potentials were recorded from the entire chest surface in 42 patients suffering from Wolff-Parkinson-White syndrome. We were able to identify six types of surface maps, according to the location of the potential maximum and minimum during the delta wave. For each of these types we suggested the most likely location of the pre-excited region around the A-V rings (types 1 to 5) or in the interventricular septum (type 6). In 13 patients belonging to Types 1, 2, 3, 5 and 6 our hypotheses were in agreement with intracardiac recordings, epicardial maps or surgical results obtained by others. Isopotential surface maps provide more information on the location of the pre-excited area than conventional ECGs, particularly when these exhibit intermediate features between Types A and B.
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L. De Ambroggi
University of Milan
B Taccardi
University of Parma
Emilio Macchi
University of Parma
Circulation
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Ambroggi et al. (Sun,) conducted a observational in Wolff-Parkinson-White syndrome (n=42). Isopotential surface maps vs. Conventional ECGs was evaluated on Localization of the pre-excited area. Isopotential surface maps identified six types of pre-excitation patterns, providing more information on the location of the pre-excited area than conventional ECGs in 42 WPW patients.
synapsesocial.com/papers/6a23083f49ad601d9cd2732f — DOI: https://doi.org/10.1161/01.cir.54.2.251