Advances in cryoablation for pancreatic cancer

Figure 9 Correlation between overall survival and the number of cryoablation treatments in patients with pancreatic cancer. A: Comparisons of overall survival in the cryoimmunotherapy group between 13 patients who underwent repeated cryoablation and 18 patients who received a single cryoablation procedure; B: Comparisons of overall survival in the cryotherapy group between 15 patients who underwent repeated cryoablation and 21 patients who underwent a single cryoablation procedure. The analyses were performed by the Kaplan-Meier method with long-rank tests.