Why the study?
In patients with a low premature ventricular contraction (PVC) burden, linking PVCs to an individual arrhythmia substrate can be challenging, motivating an evaluation of CMR's role in guiding PVC ablation.
CMR with late gadolinium enhancement is a useful tool for identifying arrhythmia substrates and risk stratifying patients with premature ventricular contractions to guide ablation.
The diagnosis of premature ventricular contractions (PVC) is presumptively based on the presence of frequent symptoms. Particularly in patients with a relatively low PVC burden, the relationship between the PVCs and an individual arrhythmia substrate can be challenging to ascertain. Late gadolinium enhancement (LGE) on cardiac magnetic resonance imaging (CMR) has been found to be beneficial in identifying the presence of potential individual arrhythmia substrates even in patients with normal left ventricular function. Consequently, CMR has been useful in risk stratification of patients with PVCs. The authors aimed to demonstrate and discuss the current role and future use of CMR in the diagnostic algorithm to guide PVC ablation.
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Sohns et al. (2021) studied this question.
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