Key result
Open window mapping using 3D navigational systems is a novel technique that enables rapid high-density point collection to quickly identify and ablate accessory pathways.
Why the study?
Conventional accessory pathway mapping relies on point-by-point assessment of local electrograms, which can be challenging and time consuming.
Open window mapping is a promising high-density 3D mapping technique that simplifies the localization of accessory pathways by eliminating the need to manually identify specific electrograms, potentially improving procedural efficiency.
OWM may streamline accessory pathway mapping; leaves open comparative efficacy and safety versus conventional techniques.
Catheter ablation is the treatment of choice for patients with symptomatic accessory pathways (APs) causing recurrent atrioventricular reciprocating tachycardia or in situations where APs conduct rapidly, posing a risk of sudden cardiac death. Conventional AP mapping relies on point-by-point assessment of local electrograms looking closely for pathway electrograms or early atrial or ventricular electrograms, which may be challenging and time consuming. Recently, open window mapping (OWM) using 3D navigational systems has emerged as a novel technique to help localise and ablate APs. OWM has significant advantages over conventional point-by-point mapping techniques. The purpose of this review is to summarise the currently available literature on the OWM technique and to highlight the technical aspects and mapping considerations for OWM, including specific cases demonstrating its utility.
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Dulai et al. (2023) conducted a review in Accessory pathways (Wolff-Parkinson-White syndrome). Open window mapping (OWM) vs. Conventional mapping was evaluated. Open window mapping using 3D navigational systems is a novel technique that enables rapid high-density point collection to quickly identify and ablate accessory pathways.
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