Abstract
To evaluate the safety, feasibility, and survival benefit of radiofrequency ablation in liver-only recurrence pancreatic cancer patients after radical pancreatectomy. The data and follow-up of pancreatic cancer patients who suffered liver-only recurrence after radical pancreatectomy from 2015 to 2021 were retrospectively collected. Finally, 19 liver metastases radiofrequency ablation patients were assigned to radiofrequency ablation group, and 41 patients were to systemic treatment group. (1) the baseline, perioperative characteristics, and pathological outcomes were well-balanced. (2) Recurrence pattern showed there were more multiple (> 3) recurrence tumors in systemic treatment patients (multiple one vs. 19, P = 0.005). (3) Median radiofrequency ablation operation time was 30.0min, median blood loss was 1.0ml, 4 (21.05%) patients suffered postoperative complications, and 94.74% liver metastases tumors got complete necrosis. The first efficacy evaluation showed a significantly better effect of radiofrequency ablation, complete and partial response rate 72.22% vs. 27.78%, P < 0.001. Overall survival from the initial surgery and after liver recurrence was significantly longer in the radiofrequency ablation group (43.0 vs. 22.0months, 29.0 vs. 14.0months, P = 0.003, 0.006, respectively). Progression-free survival after treatment was longer in the radiofrequency ablation group (6.0 vs. 5.0months, P = 0.029). For liver recurrence tumor ≤ 3, overall survival from the initial surgery and after liver recurrence was significantly longer in radiofrequency ablation patients (43.0 vs. 22.0months, 29.0 vs. 14.0months, P = 0.011, 0.013, respectively). Progression-free survival after treatment was longer in the radiofrequency ablation group (7.0 vs. 4.0months, P = 0.042). Radiofrequency ablation could get a curative purpose for patients with liver-only recurrence after pancreatectomy, improve progression-free survival and overall survival, and with minor surgery damage and risk.
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