A separate form of AV nodal reentrant tachycardia is pacemaker-mediated tachycardia (PMT), a possible complication of dual-chamber artificial pacemakers is. In PMT, the artificial pacemaker forms the anterograde (atrium to ventricle) limb of the circuit and the atrioventricular (AV) node forms the retrograde limb (ventricle to atrium) of the circuit. Treatment of PMT typically involves reprogramming the pacemaker.
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