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Purpose : Histologic studies have revealed ectopic location and hypoplasia of sinus nodal tissue in left atrial isomerism. The purpose of this study is to characterize the atrial rhythms corresponding to these histologic abnormalities in left atrial isomerism. Electrocardiograms in left atrial isomerism are characterized by multiple atrial rhythms with abnormal P-wave axes, but the complex nature of atrial rhythms... |
