Pacemaker mediated tachycardia
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and keywords: PMT
Overview
It is a possible complication of dual-chamber artificial pacemakers.
Pathophysiology
Pacemaker mediated tachycardia is a form of AV nodal reentrant tachycardia. 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
The treatment of PMT typically involves reprogramming the pacemaker.