Why the study?
Electroanatomic mapping during open chest epicardial ablation is often limited by significant geometric distortions from nonstandard patch placements and exposed pericardial space conductance changes.
Judicious placement of mapping patches and the use of a saline bath within the pericardial space can minimize geometric distortions during open chest epicardial ablation with electroanatomic mapping.
Offers approach to minimize distortions in select open-chest cases; leaves open generalizability and outcomes in larger cohorts.
Although electroanatomic mapping techniques have been previously applied to open chest epicardial ablation procedures, such efforts have often been limited by significant geometric distortions introduced by the need to use nonstandard mapping patch placements and by intrathoracic conductance changes introduced by having the pericardial space exposed. In this article, we present a case of a patient with recurrent hemodynamically unstable ventricular tachycardia who underwent a successful open chest epicardial ablation procedure with electroanatomic mapping in which geometric distortions were minimized by judicious placement of mapping patches and the use of a saline bath within the pericardial space.
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Soto et al. (2019) studied this question.
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