Microelectrode studies on concealment of multiple premature atrial responses.

the conduction of premature responses has resulted from the precise and degwtff W@kW& by Langendorf, a n d K a t z a n d P i cardiograms of patients with arrhythmias. The elaborate associates on experimentally evoked arrhythmias have further increased our knowledge of conduction of premature responses. Recently, Moe et al. demonstrated that as many as six premature atrial responses can be concealed in succession. Since only atrial and ventricular electrograms were recorded in these studies, it was not possible to define the site or mechanism of AV block of the premature atrial response.