Results
The main features of the patients are shown in Table 1.
Table 2 displays the findings, statistical analysis, and results of the invasive electrophysiological study for all patients. No significant differences in electrophysiological parameters were observed between the two groups.
There were no significant differences in demographic features, left atrial size, or ejection fraction as illustrated in Table 1 and Table 2. The annual mean of syncope before the procedure was similar. The mean annual syncope rate prior to the procedure was similar. Electrophysiological parameters also exhibited equivalence, as shown in Table 2. While the mean follow-up duration did not differ significantly, the NoECVS group, which underwent CNA without denervation confirmation by ECVS, experienced a significantly higher number of relapses, as indicated in Table 1 and Figure 4.
The syncope recurrence-free survival curves, Figure 1, demonstrate a significantly lower syncope recurrence rate in the ECVS group with confirmed denervation, as indicated by a Log-Rank p-value of 0.04, Figure 4-A. Furthermore, the Hazard Ratio analysis revealed that the risk of syncope recurrence was five times higher in the NoECVS group, as depicted in, Figure 4-B.
Figure 4
Additional data from the study as presented in Table 3 will be further debated in the discussion.