AV junction

AV junc·tion

imprecisely defined zone surrounding and including the AV node and the adjacent atrial and ventricular myocardium.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
The atria and ventricles beat independent of each other under the control of a separate pacemaker foci: one in the sinoatrial node and the other in the AV junction. The ECG showed that all R-R intervals were equal (0.46 seconds), and no rS complex was conducted with the P waves.
a prolonged rest period in the upper AV junction following retrograde conduction ...
The presence of a common AV junction from the subcostal (en-face) view.
The identification of a common AV junction from the subcostal view had been the gold standard for diagnosis of AVSD in all the previous reports.
Data from previous studies show that AV junction ablation can improve quality of life, although it does not appear to have an impact on hospitalization rates, mortality rates, or abilities on exercise function tests; quantitative findings from elderly patients are few.
This study revealed an .overall ablation success rate of 95%: 100% for AV junction ablation, 97% for AV node reentrant tachycardia ablation, and 93% for AP ablation and an overall recurrence rate of 6%.
Since the sinus node is the normal pacer, latent pacing sites at the AV junction or ventricular Purkinje fibers are driven to low resting potentials by the sinus node and have lower rates of normal automaticity (Abraham, 1992).
Nonsurgical direct current (DC) catheter ablation of the AV junction in patients with supraventricular tachycardia was documented in 1982.[9,10] High-energy electrical shocks are delivered to the tissue by a percutancous catheter and produce barotrauma and necrosis.
a prolonged rest period in the upper AV junction following retrograde conduction." (1) Their final conclusion stated, "The application of the concept of supernormal conduction in conjunction with that of concealed conduction and of unidirectional block permits a satisfactory interpretation of some otherwise inexplicable features of AV block encountered in clinical electrocardiography." (1)