Surgery and Thermal Hepatic Ablation Combined With Chemotherapy in Hepatic Oligometastatic Pancreatic Cancer

The goal of this clinical trial is to compare the overall survival of thermal ablation combined with chemotherapy and chemotherapy alone in the patients with liver oligometastasis after pancreatic ductal adenocarcinoma (PDAC) surgery. The main question it aims to answer is: whether thermal ablation combined with chemotherapy can effectively prolong the overall survival in the patients with liver oligometastasis after pancreatic ductal adenocarcinoma (PDAC) surgery. The participants in the treatment group will receive systemic chemotherapy combined with liver thermal ablation, while the participants in the control group will receive chemotherapy alone. All participants will be followed up to evaluate the overall survival after treatment.