Long-term prognosis of surgical treatment for early ampullary cancers and implications for local ampullectomy.

BACKGROUND: Early ampullary cancers present with good prognosis. Pancreaticoduodenectomy (PD) has been standard treatment for ampullary cancers, but it remains high rate of postoperative complications. So there raises a discussion on the role of local ampullectomy for early ampullary cancers (mainly focusing on pT1).

METHODS: 89 patients with pT1 ampullary cancer who underwent surgical treatment between 1978 and 2010 were retrospectively studied.

RESULTS: Rate of postoperative complications, especially post-operative pancreatic fistula (P = 0.009), after PD was higher than after local ampullectomy, . Multivariate analysis showed that tumor size (HR 2.204; P = 0.014), lymph node metastasis (HR 4.362; P < 0.001), lymph vascular invasion (HR 4.258; P < 0.001), and perineural invasion (HR 4.467; P < 0.001), gross morphology (HR 2.536; P = 0.004) and tumor grade (HR 4.213; P = 0.001) were independent risk factors for long-term survival, as well as risk factors for failure of ampullectomy in early ampullary cancer. For patients absent of these factors, local ampullectomy would achieve a good prognosis.

CONCLUSIONS: Because of high rate of lymph node metastasis, PD should be preferably performed for radical resection. Local ampullectomy could be an alternative for patients in high operative risk; and would achieve a good outcome in patients whose tumors were well differentiated and showed polypoid gross morphology and size ≤1 cm.