title: High resolution atrial depolarization of MZ twins detected by surface signal averaging technique.
abstract: High resolution tracings of atrial depolarization can be obtained by surface signal averaging technique. A study was conducted on 4 male and 4 female healthy MZ twin pairs aged 10.4 +/- 1.3 yrs. Each subject underwent 3 or more recordings, at 10-days intervals. The essential reproducibility could be confirmed, with personal characteristics, as well as the reliability of the technique and the electrophysiological value of the spikes complex. In 3/8 pairs the cotwins showed a significant likeness of the atriogram, while in 5/8 pairs the tracings were not quite resembling between the twins and that is attributed to variations in the chronogenetic characteristics of MZ twins.
mesh_terms: D016275:Atrial Function; D002648:Child; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male; D011247:Pregnancy; D013997:Time Factors; D014427:Twins; D014430:Twins, Monozygotic