Summary
Fifteen cases with several forms of dextro‐cardia were examined by vectorcardiography according to the Frank system. In cases of isolated dextrocardia with concordant viscero‐atrial and atrioventricular situs, without transposition, heart disease or with small left to right shunt, the results corresponded to the ECG. The VCG differed only slightly from the mirror image of inscriptions with inverted electrode placement. In situs inversus totalis with mirror image dextrocardia and in transposition complexes, the usual VCG records were more distorted and did not correspond to the ECGs. Further investigations are necessary with the inverted electrode placement. The spatial half area QRS‐T angle appeared to be useful in estimating ventricular hypertrophy and was not influenced by the position of the heart.