Gilenya has several known side effects which include a decrease in heart rate and/or atrioventricular conduction after the first dose.

Dual-chamber pacemakers in the presence of normal atrioventricular conduction.

(2002) Walter Gaskell and the understanding of atrioventricular conduction and block.

It slows atrioventricular conduction so that the heartbeat slows down and very slightly increases contraction power (positive inotropic effect).

Atrioventricular conduction disease (AV block) describes impairment of the electrical continuity between the atria and ventricles.

It also increases conductivity of electrical impulses through the atrioventricular conduction system and increases the force of atrioventricular contraction.

Mice hearts presented with dilated cardiomyopathy and contraction-related dysfunctions such as abnormal atrioventricular conduction, slower heart rate, altered ventricular depolarization/repolarization and arrhythmias.

In 1899 he provided a description of irregular pulses due to partial blockage of atrioventricular conduction, creating a progressive lengthening of conduction time in cardiac tissue.

"She began to have a suggestion of increased excitability of her heart by having a few premature ventricular beats and a suggestion of a mild atrioventricular conduction defect which we picked up on the recorder."

The bundle of Kent is eponymously named for British physiologist Albert Frank Stanley Kent (1863-1958), who described lateral branches in the atrioventricular groove of the monkey heart (erroneously believing these constituted the normal atrioventricular conduction system).

The equivalent atrial pacing mode is AAI or AAIR which is the mode of choice when atrioventricular conduction is intact but the natural pacemaker the sinoatrial node is unreliable - sinus node disease (SND) or sick sinus syndrome.