Objective: The study aimed to explore the clinical efficacy of radiofrequency ablation (RFA) guided by high-density mapping on persistent atrial fibrillation (PsAF).
Method: A total of 190 patients with PsAF undergoing RFA were divided into a routine group (n = 105) and a high-density mapping group (n = 85). The indicators of therapeutic efficacy were collected and compared.
Results: A statistically significant difference was found in the overall rate of post-operative recurrence between the two groups (11.58% vs. 23.81%, χ2 = 5.055, p = 0.025). The effects of different treatment methods on SF-36 score varied (FSF-36 treatment = 43.142, p < 0.05), and SF-36 scores at 3, 6, and 12 months of both groups were in the same order: the high-density mapping group > the routine group. While surgery guided by high-density substrate mapping (odds ratio = 0.453, 95% confidence interval: [0.232-0.784], p < 0.001) was a protective factor for recurrence.
Conclusion: For patients with PsAF, more accurate mapping is conducted on the atrial substrate using a PentaRay electrode, which further verifies that the success rate of individualized ablation strategy is like mainstream procedures, and it significantly improves the subsequent health status of patients and reduces their incidence of adverse reactions.
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