Fenghao Sun1, Li Chen1, Mengkun Shi1, Xiaodong Yang1, Ming Li1,2, Xinyu Yang1,2, Xiyu Dai1,2, Cheng Zhan3, Yu Shi4, Qun Wang1. 1. Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China. 2. Eight-Year Program Clinical Medicine, Grade of 2014, Shanghai Medical College, Fudan University, Shanghai, 200032, China. 3. Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China. czhan10@fudan.edu.cn. 4. Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China. shi.yu@zs-hospital.sh.cn.
Abstract
PURPOSE: Video-assisted thoracoscopic surgery (VATS) is widely used in thoracic surgery and increasingly applied to pulmonary metastasectomy. The purpose of this study was to identify prognostic factors of patients undergoing VATS pulmonary metastasectomy from colorectal cancer (CRC). METHODS: Between January 2005 and June 2015, a total of 154 patients underwent VATS pulmonary metastasectomy from CRC. Patient demographic data and characteristics of the primary tumor and pulmonary metastasis were analyzed to identify factors significantly correlated with prognosis. RESULTS: The median follow-up period after pulmonary resection was 37 months. The cumulative 5-year overall survival rate after VATS pulmonary metastasectomy from CRC was 71.3%. History of metastasis to other sites (p = 0.035), status of mediastinal lymph nodes (p < 0.001), and preoperative carcinoembryonic antigen (CEA) level (p = 0.013) were identified as independent prognostic factors. Subgroup analysis with a combination of these three independent prognostic factors revealed 5-year OS rates of 91.0, 70.0, 30.3, and 0.0% for patients with zero, one, two, and three risk factors, respectively. Other factors, such as sex, disease-free interval, T stage of primary tumor, and status of lymph node near the primary tumor, were not significantly associated with prognosis. CONCLUSION: VATS pulmonary metastasectomy is efficacious for patients with CRC pulmonary metastases. History of metastasis to other sites, status of mediastinal lymph nodes, and preoperative CEA level were identified as independent prognostic factors. The number of risk factors significantly influenced patient survival.
PURPOSE: Video-assisted thoracoscopic surgery (VATS) is widely used in thoracic surgery and increasingly applied to pulmonary metastasectomy. The purpose of this study was to identify prognostic factors of patients undergoing VATS pulmonary metastasectomy from colorectal cancer (CRC). METHODS: Between January 2005 and June 2015, a total of 154 patients underwent VATS pulmonary metastasectomy from CRC. Patient demographic data and characteristics of the primary tumor and pulmonary metastasis were analyzed to identify factors significantly correlated with prognosis. RESULTS: The median follow-up period after pulmonary resection was 37 months. The cumulative 5-year overall survival rate after VATS pulmonary metastasectomy from CRC was 71.3%. History of metastasis to other sites (p = 0.035), status of mediastinal lymph nodes (p < 0.001), and preoperative carcinoembryonic antigen (CEA) level (p = 0.013) were identified as independent prognostic factors. Subgroup analysis with a combination of these three independent prognostic factors revealed 5-year OS rates of 91.0, 70.0, 30.3, and 0.0% for patients with zero, one, two, and three risk factors, respectively. Other factors, such as sex, disease-free interval, T stage of primary tumor, and status of lymph node near the primary tumor, were not significantly associated with prognosis. CONCLUSION: VATS pulmonary metastasectomy is efficacious for patients with CRC pulmonary metastases. History of metastasis to other sites, status of mediastinal lymph nodes, and preoperative CEA level were identified as independent prognostic factors. The number of risk factors significantly influenced patient survival.
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