BACKGROUND: Lymph node (LN) metastases are a major negative prognostic factor for peri-hilar cholangiocarcinoma (PCC). Prognostic significance of the extent of LN dissection, number of metastatic LN and the lymph node ratio (LNR) are still under debate. AIMS: The aims of the present study were to evaluate the prognostic value of the LN status, the total number of LNs evaluated and LNR in PCC. METHODS: Between 1990 and 2008, 62 patients with PCC submitted to surgical resection with curative intent were retrospectively evaluated. Number and status of harvested LN were recorded. RESULTS: In 53 patients (85.4%) regional lymphadenectomy was performed. Median number of LNs examined was 7 (range 1-25). Median survival was 41.9 months in patients with N0 compared with 22.7 months in 21 patients (39.6%) with N+ (P= 0.03). Median survival was 3, 18.5 and 29 months for patients with 0, 1-3 and >3 LN retrieved, respectively (P < 0.01). Five-year survival for patients above and below the LNR cut-off value of 0.25 was 0% and 22.5%, respectively (P= 0.03). CONCLUSIONS: LN metastases are a major prognostic factor for survival after surgical resection of PCC. The number of LN harvested and LNR showed high prognostic value.
BACKGROUND: Lymph node (LN) metastases are a major negative prognostic factor for peri-hilar cholangiocarcinoma (PCC). Prognostic significance of the extent of LN dissection, number of metastatic LN and the lymph node ratio (LNR) are still under debate. AIMS: The aims of the present study were to evaluate the prognostic value of the LN status, the total number of LNs evaluated and LNR in PCC. METHODS: Between 1990 and 2008, 62 patients with PCC submitted to surgical resection with curative intent were retrospectively evaluated. Number and status of harvested LN were recorded. RESULTS: In 53 patients (85.4%) regional lymphadenectomy was performed. Median number of LNs examined was 7 (range 1-25). Median survival was 41.9 months in patients with N0 compared with 22.7 months in 21 patients (39.6%) with N+ (P= 0.03). Median survival was 3, 18.5 and 29 months for patients with 0, 1-3 and >3 LN retrieved, respectively (P < 0.01). Five-year survival for patients above and below the LNR cut-off value of 0.25 was 0% and 22.5%, respectively (P= 0.03). CONCLUSIONS: LN metastases are a major prognostic factor for survival after surgical resection of PCC. The number of LN harvested and LNR showed high prognostic value.
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