Vectorcardiography demonstrates very clearly the method of auricular activation and shows its spatial development. This is illustrated and discussed in this paper as it occurs in normal subjects, in a patient with an ectopic auricular pacemaker, and in patients with pulmonary heart disease. Changes similar to those seen in patients with cor pulmonale have been observed in dogs after partial occ...

It is usual for various investigators to use their own system of vectorcardiography. Such a system is characterized by the place of the electrodes and the way in which the vectorcardiogram is deduced from the potential differences obtained. At present the system according to Duchosal and Sulzer (1949) and the one proposed by Wilson et al. (1947) are much in use. The equilateral tetrahedron prop...

Vectorcardiography is being used increasingly as a supplement to conventional electrocardiography. In particular, the scalar tracings may not help in the recognition of right ventricular hypertrophy, because the usually accepted criteria are diverse and unreliable (Sokolow and Lyon, 1949; Milnor, 1957; Wasserburger and Brown, 1958). We have chosen a measurable quantity, namely mean pulmonary ar...

Three cases of endocardial fibroelastosis with vectorcardiographic findings suggestive of an anterior myocardial infarct are presented. It had been previously reported that such vectorcardiographic features were diagnostic of anomalous origin of the left coronary artery. We conclude that the two diseases can not be differentiated on the basis of electrocardiography or vectorcardiography alone. ...

CASTELLANOS, A., JR & LEMBERG, L. (1966) Post-infarction conduction disturbances, Vectorcardiography-1965 (Ed. by I. Hoffman and R. C. Taymor), p. 219. North-Holland, Amsterdam. ROBERTSON, P.G.C., EMSLIE-SMITH, D., LOWE, K.G. & WATSON, H. (1963) The association of type B ventricular pre-excitation and right bundle-branch block. Brit. Heart J. 25, 755. SCOTT, R.C. (1965) Left bundle-branch block...

Electrocardiographic aspects in Brugada syndrome (BrS) and early repolarization (ER) may confuse the diagnosis, especially when located in the anteroseptal region of the rest-ECG (V1-V3). Vectorcardiography (VCG) is useful to differentiate the two situations, both through visual characteristics of vector loops and quantification of certain measurements. The objective of this study was to define...