Prognostic impact of postoperative circulating tumor DNA as a molecular minimal residual disease marker in patients with pancreatic cancer undergoing surgical resection.

Abstract excerpt

PURPOSE: We aimed to clarify the prognostic impact of postoperative circulating tumor DNA (ctDNA) shortly after pancreatectomy in patients with pancreatic ductal adenocarcinoma (PDAC). METHODS: Preoperative and paired postoperative blood samples were obtained from 66 patients in patients with PDAC. Cell-free DNA was extracted from the plasma, and KRAS mutations, as a benchmark of ctDNA, were examined using...

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