PURPOSE: To evaluate the role of radiotherapy for patients with resected intrahepatic cholangiocarcinoma with concurrent macroscopic abdominal lymph node metastases. METHODS: We identified 90 patients with resected intrahepatic cholangiocarcinoma and concurrent regional lymph node metastases treated between 1999 and 2008, thereinto 24 patients received local limited external beam radiotherapy (classified as the radiotherapy group) with a median total dose of 50 Gy (range 34-60 Gy) in fractions of 2 Gy five times a week. The remaining 66 patients did not receive external beam radiotherapy (classified as the non-radiotherapy group). We studied survival and tumor response to radiotherapy, demonstrated by symptoms and results of imaging, by Kaplan-Meier method and Cox analysis. RESULTS: After radiotherapy, lymph nodes showed partial response in nine patients (37.5%) and complete response in nine patients (37.5%). Median survival was 19.1 months in the radiotherapy group and 9.5 months in the non-radiotherapy group (P = 0.011). Multivariate analysis showed that increasing age, multiple intrahepatic primary tumors, higher level of CA19-9, and non-radiotherapy group were related to a poorer prognosis. The most common cause of death was intrahepatic recurrence, and death resulting from lymph node-related complications was similar between the two groups. CONCLUSIONS: External beam radiotherapy seems to improve the prognosis of patients with resected intrahepatic cholangiocarcinoma and concurrent macroscopic lymph node metastases.
PURPOSE: To evaluate the role of radiotherapy for patients with resected intrahepatic cholangiocarcinoma with concurrent macroscopic abdominal lymph node metastases. METHODS: We identified 90 patients with resected intrahepatic cholangiocarcinoma and concurrent regional lymph node metastases treated between 1999 and 2008, thereinto 24 patients received local limited external beam radiotherapy (classified as the radiotherapy group) with a median total dose of 50 Gy (range 34-60 Gy) in fractions of 2 Gy five times a week. The remaining 66 patients did not receive external beam radiotherapy (classified as the non-radiotherapy group). We studied survival and tumor response to radiotherapy, demonstrated by symptoms and results of imaging, by Kaplan-Meier method and Cox analysis. RESULTS: After radiotherapy, lymph nodes showed partial response in nine patients (37.5%) and complete response in nine patients (37.5%). Median survival was 19.1 months in the radiotherapy group and 9.5 months in the non-radiotherapy group (P = 0.011). Multivariate analysis showed that increasing age, multiple intrahepatic primary tumors, higher level of CA19-9, and non-radiotherapy group were related to a poorer prognosis. The most common cause of death was intrahepatic recurrence, and death resulting from lymph node-related complications was similar between the two groups. CONCLUSIONS: External beam radiotherapy seems to improve the prognosis of patients with resected intrahepatic cholangiocarcinoma and concurrent macroscopic lymph node metastases.
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