High-density Grid Use for Left Lateral Accessory Pathway

Paskman, Chelsea; Hammond, A. K.; Harding, John J.; Sangrigoli, Robert

doi:10.19102/icrm.2021.120106s

Cited by 1 publication

(1 citation statement)

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“…9 Subsequently, the OWM technique has been further reported in case reports. [14][15][16] OWM has significant advantages over conventional mapping techniques because there is no need to identify atrial, ventricular or pathway EGMs, which can be difficult to see in some cases, particularly with widely spaced bipolar mapping ablation catheters, and can depend on operator experience. Rather, in OWM, both atrial and ventricular EGM signals are included in the WOI and there is automatic algorithm-driven detection of local signals demonstrating the maximum change in voltage over time (dV/dt).…”

Section: Open Window Mappingmentioning

confidence: 99%

Open Window Mapping of Accessory Pathways: A Literature Review and Practical Guide

Dulai,

Bangash,

Sharma

et al. 2023

Arrhythm Electrophysiol Rev

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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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