Resumen

BERMUDEZ-ARIAS, F et al. La interpretación deductiva de las doce derivaciones (y no tres) del Ecg-12d mejora la determinación de las vías accesorias en 78 casos de síndrome de Wolff-Parkinson-White (Swpw). AVFT [online]. 2003, vol.22, n.1, pp.60-72. ISSN 0798-0264.

ABSTRACT     Introduction and objectives: The Wolff-Parkinson-White syndrome (Short PR interval and functional blockade of branch) is related with accessory pathways bundle (atrial/ventricular) identified originally through 12D-EKG as patterns A, B and C. Gallagher, using electrophysiological methods identified 10 sites, but without direction and orientation of the ventricular vectors. The purpose of this study was to establish the initial point and spatial orientation of the initial ventricular vector plus delta wave and abnormal bundle using the 12D-EKG and pointing the left or right, top or bottom and anterior or posterior positions. Methods: Were studied 78 patients with ages between 2 and 65 years old. 71 of them do not show any other disease and 5 show hypertension and 2 Ebstein disease. Results: According to bundle position, patients were classified in two groups: a) with left ventricular bundles: bundles 9 (C1) and 7 (A1), according to the SIC, with 11 and 10 cases respectively. b) With right ventricular bundles: bundles 1 (B2), 2 (B1), 3(A2), 4, and 6 (A3), according to the Sociedad Internacional de Cardiología (SIC) with 26, 5, 21 and 5 cases respectively. All the results agree with electrophysiological patterns: C1(5), A1(4), B2(7), B1(4), A2(7), A3(5 cases). Conclusions: Detection of abnormal bundles using 12D-EKG will help the electrophysiological studies and thereby the solution of the main complication, arrhythmias, for patient benefit.

Palabras clave : Wolff-Parkinson-White Syndrome; Electrocardiography; Electrophysiology.