[P-synchronized ventricular stimulation in supraventricular tachycardia].
The author used P-synchronized stimulation of the ventricles to prevent tachycardia paroxysms in patients with frequent drug-resistant paroxysms of supraventricular tachycardia (SVT). Electrophysiologic examinations revealed additional conductive pathways functioning during tachycardia in the retrograde direction in 12 patients whereas in 6 cases tachycardia was accounted for by the mechanism of the re-entry of the excitation wave inside the atrioventricular node. The detected mechanisms of SVT development made it possible to use a method of its prevention by ventricular electrostimulation in the P-synchronized mode. Stimulation parameters were determined by a specially devised technique during electrophysiological examination. Following this stimulation, tachycardia attacks were completely prevented and attempts to provoke them by various types of stimulation were unsuccessful.
D000328:Adult; D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013614:Tachycardia, Paroxysmal / Q000503:physiopathology / Q000517:prevention & control*
P-sinkhronizirovannaia stimuliatsiia zheludochkov pri supraventrikuliarnykh takhikardiiakh.