Atrial
fibrillation (AF) ablation targeting the
circumferential isolation of pulmonary veins (PVI) is an established therapeutic
alternative in symptomatic AF patients resistant to anti-arrhythmic medications.
The procedure technically challenging and multiple difficulties must be
overcome in order to achieve a successful outcome. The magnetic navigation
system (MNS) is a remote catheter control technology
that has an advantages such as an atraumatic catheter
design that improves the procedural safety, a reduced amount of radiation
exposure to both the patient and physician, unrestricted and reproducible
catheter manoeuvrability that allows the access to difficult anatomical
situations, and an improved catheter
stability lead to better energy delivery. Due to these advantages, MNS is increasingly
being used for AF ablation and both acute and
chronic success rates are comparable with the conventional technique. However,
MNS is related to longer radiofrequency (RF) application duration and
procedure time. But, the new developments in navigation systems,
catheters and sheaths used, combination of MNS and a new three-dimensional
mapping systems are very promising to obviate these
concerns.
Credits: Tolga AKSU; Serdar BOZYEL; Ebru GOLCUK; Kývanc YALIN; Tumer Erdem Guler