Cardioplegia can be used as a novel mapping technique to guide selective transcoronary alcohol ablation for incessant ventricular tachycardia, potentially preventing unnecessary myocardial damage.
May facilitate isthmus mapping in refractory VT; leaves open utility pending prospective validation.
Incessant scar-related reentrant ventricular tachycardia is an important cause of morbidity and mortality. In patients not amenable to emergent radiofrequency catheter ablation, selective transcoronary alcohol ablation has been successfully performed. In our case study, we introduce the novel use of cardioplegia as a mapping technique for identification of the critical ventricular tachycardia isthmus to guide efficient transcoronary alcohol ablation and prevent unnecessary myocardial damage.
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Kim et al. (2016) studied this question.
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