[Possibilities of the combined use of transesophageal electrostimulation of the heart and physical load in the diagnosis of paroxysmal reciprocal atrioventricular tachycardia].

Possibilities of using transesophageal electrostimulation of the heart in combination with a physical load were studied in 38 patients with paroxysms of reciprocal atrioventricular (AV) tachycardia. The study has shown that the physical load exerts a pronounced influence on the induction, persistence, and electrophysiological parameters of AV tachycardia, significantly increases the functional capacity of the anterograde conduction along the anomalous tract, and reduces the efficacy of vagal techniques in alleviating paroxysms of AV tachycardia.