摘要
Abstract
Objective To systematically review the safety and efficacy of irreversible electroporation(IRE)combined with immunotherapy in patients with unresectable pancreatic cancer.Methods This study was conducted according to the PRISMA guideline,with a PROSPERO registration unmber of CRD42024531984.Datebases including PubMed,Embase the Cochrane Library,Web of Science,CNKI,Wanfang Data,and VIP were searched for related articles on IRE combined with immunotherapy for unresectable pancreatic cancer published up to February 2024.The articles were screened and related data were extracted according to the established inclusion and exclusion criteria,and the quality of the articles was assessed.Review Manager 5.3 and Stata 17.0 software were used to perform the meta-analysis.Results Six studies were finally included,with three prospective studies,two retrospective studies,and one randomized controlled trial.There were 376 patients with unresectable pancreatic cancer in total,among whom there were 222 patients in the IRE group and 154 patients in the IRE+immunotherapy group.The meta-analysis showed that compared with IRE alone,IRE combined with immunotherapy significantly prolonged progression-free survival(hazard ratio[HR]=0.82,95%confidence interval[CI]:0.72-0.92,P=0.001)and overall survival(HR=0.86,95%CI:0.80-0.93,P=0.000 1),increased T lymphocyte count in the patients(mean difference=217.93,95%CI:192.87-242.99,P<0.000 01),and improved the immune function of patients.However,there were no significant differences between the two groups in reducing the incidence rate of adverse events(odds ratio[OR]=1.43,95%CI:0.76-2.72,P=0.27)and improving the objective remission rate of patients(OR=1.49,95%CI:0.87-2.56,P=0.15).Conclusion IRE combined with immunotherapy is safe and effective in patients with unresectable pancreatic cancer and can significantly improve overall survival and progression-free survival and enhance immune function,with little effect on objective remission rate and the incidence rate of adverse events.关键词
胰腺肿瘤/消融技术/免疫抑制法/Meta分析Key words
Pancreatic Neoplasms/Ablation Techniquesl/Immunosuppression/Meta-Analysis
