Long-term outcomes in patients with duodenal adenocarcinoma

BackgroundBecause of the rarity of duodenal adenocarcinoma, little is known regarding its natural history or prognostic factors for survival. We therefore evaluated surgical treatment, and prognostic factors for survival in patients with duodenal adenocarcinoma. MethodsWe retrospectively reviewed the medical records of patients who were diagnosed with duodenal adenocarcinoma at Asan Medical Center between December 1999 and December 2009. ResultsOf the 76 patients, 47 (61%) underwent surgery with curative intent and 29 (39%) underwent palliative operation. Of the former, 25 underwent pancreaticoduodenectomy (PD), 19 underwent pylorus-preserving PD, 2 underwent segmental duodenectomy and 1 underwent transduodenal excision. The median survival of the 41 patients who achieved R0 resection was 25.1 months (range 4-134 months), with overall 1-, 3- and 5-year survival rates of 80.4%, 63.4% and 60.9%, respectively. Median survival was significantly longer in patients who underwent curative resection than in those who underwent palliative surgery (28.2 versus 6.6 months, P < 0.001). Univariate analysis showed that transfusion and lymph node metastasis were related to survival, and multivariate analysis revealed that lymph node metastasis was independently associated with survival (P = 0.036). Survival differences were observed between stages of the seventh edition of the American Joint Committee on Cancer staging system. ConclusionIn the absence of distant metastasis, curative resection enhances the long-term survival of patients with duodenal adenocarcinoma. Lymph node metastasis is prognostic factor of overall survival.