Inter-Holter Reproducibility
Although a single Holter monitor per patient was used for derivation and validation of the novel parameters, 25/69 patients (36%) from both cohorts underwent multiple ambulatory ECGs prior to ablation. 44 supplemental Holter monitors (mean 1.8 per patient) were available to test reproducibility. When using the CoV ≥ 0.7 parameter, supplemental Holters agreed with the original prediction in 87.0%. When using the VE < 50 parameter, agreement with the original prediction was 91.3%.