Prognostic relevance of lymph node ratio and number of resected nodes after curative resection of ampulla of Vater carcinoma

Annals of Surgical Oncology
Massimo FalconiPaolo Pederzoli

Abstract

Nodal metastasis is considered a major prognostic factor in patients with ampulla of Vater carcinoma (AVC). No study has investigated the significance of the ratio between metastatic and resected/examined lymph nodes (LNR) in patients with AVC. Demographic, operative, and pathology data, including number of resected/evaluated nodes and LNR, were collected from patients who underwent pancreaticoduodenectomy with radical intent for invasive AVC from 1990 to 2005. Survival rates and recurrence patterns were evaluated and predictors were identified. In 90 evaluable patients (51 males, 39 females, median age 62.5 years), 5-year disease-specific survival (DSS) was 61%. The median number of resected/evaluated nodes was 16 (range: 5-47); 50% of the patients had nodal metastases. The 5-year DSS according to LNR was 75%, 49%, 38%, and 0% for LNR = 0, LNR >0 and < or =0.2, LNR >0.2, and < or =0.4, and LNR >0.4 (P = 0.002), respectively. The 5-year DSS was 81% in patients with >16 resected/evaluated nodes compared with 45% in those with < or =16 resected/evaluated nodes (P = 0.001). On multivariate analysis LNR and a number of resected/evaluated nodes >16 were significant predictors of survival; a number of resected/evaluated nodes >16 was...Continue Reading

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