Frank vectorcardiogram in common ventricle: correlation with anatomic findings.
The influence on the Frank vectorcardiogram of anatomic features in common ventricle was analyzed by comparison of Frank vectorcardiograms in 51 patients who had common ventricle with those of 36 patients who had large ventricular septal defect, 14 of whom had levotransposition of the great arteries and 22 of whom had dextrotransposition. Frank vector loops in common ventricle differed from those in ventricular septal defect by the frequent occurrence of clockwise horizontal rotation, most common in patients with type C common ventricle (no outflow chamber). There was a statistically significant difference in the amplitude of early forces between patients with common ventricle and those with large ventricular septal defect. The degree of overlap of vectorcardiographic features between the two groups is sufficiently great that the vectorcardiogram has limited usefulness in establishing the diagnosis of common ventricle in any individual patient.
D003936:Diagnosis, Computer-Assisted; D003937:Diagnosis, Differential; D006321:Heart / Q000503:physiopathology*; D006330:Heart Defects, Congenital / Q000175:diagnosis* / Q000503:physiopathology; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis / Q000503:physiopathology; D006352:Heart Ventricles / Q000002:abnormalities*; D006801:Humans; D009862:Online Systems; D014188:Transposition of Great Vessels / Q000175:diagnosis / Q000503:physiopathology; D014672:Vectorcardiography / Q000379:methods