Yiyang Wang1, Difan Zheng2, Jiajie Zheng1, Qingyuan Huang1, Baohui Han3, Jie Zhang4, Heng Zhao1, Haiquan Chen5,6. 1. Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China. 2. Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai, 200032, China. 3. Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China. 4. Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China. 5. Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai, 200032, China. hqchen1@yahoo.com. 6. Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China. hqchen1@yahoo.com.
Abstract
BACKGROUND: This retrospective research was designed to investigate the relationship between pT1N0M0 invasive adenocarcinoma (IADC) harboring solid (SOL) and/or micropapillary (MIP) components and its prognosis following lobectomy. METHODS: Clinical data of pT1N0M0 IADC patients were retrospectively collected from Shanghai Chest Hospital. Survival curves were plotted by Kaplan-Meier methods. Multivariable cox regressions were conducted to discover the independent risk factors of recurrence-free survival (RFS) and overall survival (OS), through which nomograms were performed to visualize the risk of recurrences and outcomes in personalized information. RESULTS: Totally, 1965 patients were enrolled, including 248 harboring SOL/MIP and 1717 not. IADC demonstrated worse 5-year RFS (81.9 vs. 92.2%, p < 0.001) and OS (85.7 vs. 94.4%, p < 0.001) when harboring SOL and/or MIP components. And this status became an independent factor associated with poorer RFS (HR 2.445, 95% CI 1.565-3.821, p < 0.001) and OS (HR 2.139, 95% CI 1.180-3.878, p = 0.012) instead of novel classification of IADC predominant patterns. No difference existed between SOL/MIP predominant and minor patterns. In addition, age > 60, smoking, post-chemotherapy and T1b were all indicating poorer RFS and smoking was also related with worse OS. The c-indexes of nomograms were 0.723 for RFS (95% CI, 0.662-0.784) and 0.703 for OS (95% CI, 0.629-0.777) respectively. CONCLUSIONS: Once the pT1N0M0 IADC harboring SOL/MIP, it strongly indicated the worse clinical recurrence and survival outcome, no matter whether the SOL and/or MIP was predominant. Smoking was correlated with worse prognosis for those patients. Age > 60 and stage T1b also indicated poorer RFS. Whether post-chemotherapy was harmful to pT1N0M0 IADC patients needed further research.
BACKGROUND: This retrospective research was designed to investigate the relationship between pT1N0M0 invasive adenocarcinoma (IADC) harboring solid (SOL) and/or micropapillary (MIP) components and its prognosis following lobectomy. METHODS: Clinical data of pT1N0M0 IADC patients were retrospectively collected from Shanghai Chest Hospital. Survival curves were plotted by Kaplan-Meier methods. Multivariable cox regressions were conducted to discover the independent risk factors of recurrence-free survival (RFS) and overall survival (OS), through which nomograms were performed to visualize the risk of recurrences and outcomes in personalized information. RESULTS: Totally, 1965 patients were enrolled, including 248 harboring SOL/MIP and 1717 not. IADC demonstrated worse 5-year RFS (81.9 vs. 92.2%, p < 0.001) and OS (85.7 vs. 94.4%, p < 0.001) when harboring SOL and/or MIP components. And this status became an independent factor associated with poorer RFS (HR 2.445, 95% CI 1.565-3.821, p < 0.001) and OS (HR 2.139, 95% CI 1.180-3.878, p = 0.012) instead of novel classification of IADC predominant patterns. No difference existed between SOL/MIP predominant and minor patterns. In addition, age > 60, smoking, post-chemotherapy and T1b were all indicating poorer RFS and smoking was also related with worse OS. The c-indexes of nomograms were 0.723 for RFS (95% CI, 0.662-0.784) and 0.703 for OS (95% CI, 0.629-0.777) respectively. CONCLUSIONS: Once the pT1N0M0 IADC harboring SOL/MIP, it strongly indicated the worse clinical recurrence and survival outcome, no matter whether the SOL and/or MIP was predominant. Smoking was correlated with worse prognosis for those patients. Age > 60 and stage T1b also indicated poorer RFS. Whether post-chemotherapy was harmful to pT1N0M0 IADC patients needed further research.
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