scholarly journals Comparing the 7th and 8th editions of UICC/AJCC staging system for nasopharyngeal carcinoma in the IMRT era

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Tao He ◽  
Ruo-Nan Yan ◽  
Hua-Ying Chen ◽  
Yuan-Yuan Zeng ◽  
Zhong-Zheng Xiang ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Staging System ◽  
Free Survival ◽  
Intensity Modulated ◽  
7Th Edition ◽  
Staging Systems ◽  
N Classification ◽  
Ajcc Staging System ◽  
Ajcc Staging ◽  
T Classification

Abstract Background To compare the prognostic value of 7th and 8th editions of the Union for International Cancer Control/American Joint Committee on Cancer (UICC/AJCC) staging system for patients with nonmetastatic nasopharyngeal carcinoma (NPC) treated with intensity-modulated radiotherapy and simultaneous integrated boost– intensity-modulated radiation therapy (SIB-IMRT). Methods Patients with NPC (n = 300) who received SIB-IMRT were included. Survival by T-classification, N-classification, and stage group of each staging system was assessed. Results For T-classification, nonsignificant difference was observed between T1 and T3 and between T2 and T3 disease (P = 0.066 and 0.106, respectively) for overall survival (OS) in the 7th staging system, whereas all these differences were significant in the 8th staging system (all P < 0.05). The survival curves for disease-free survival (DFS) and locoregional recurrence-free survival (LRRFS) in both staging systems were similar, except for the comparison of T2 and T4 disease for LRRFS (P = 0.070 for 7th edition; P = 0.011 for 8th edition). For N-classification, significant differences were observed between N2 and N3 diseases after revision (P = 0.046 and P = 0.043 for OS and DFS, respectively). For staging system, no significant difference was observed between IVA and IVB of 7th edition. Conclusion The 8th AJCC staging system appeared to have superior prognosis value in the SIB-IMRT era compared with the 7th edition.

scholarly journals Comparison of The 7th and 8th Editions of The Union for International Cancer Control /American Joint Committee on Cancer Staging System for Nonmetastatic Nasopharyngeal Carcinoma in The Intensity-Modulated Radiotherapy Era

2020 ◽  
Author(s):  
Tao He ◽  
Ruo-Nan Yan ◽  
Hua-Ying Chen ◽  
Yuan-Yuan Zeng ◽  
Zhong-Zheng Xiang ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Intensity Modulated Radiotherapy ◽  
Cancer Control ◽  
Staging System ◽  
Intensity Modulated ◽  
7Th Edition ◽  
N Classification ◽  
Ajcc Staging System ◽  
Ajcc Staging ◽  
T Classification

Abstract Background: To compare the prognostic value of 7th and 8th editions of the Union for International Cancer Control /American Joint Committee on Cancer (AJCC) staging system for patients with nonmetastatic nasopharyngeal carcinoma (NPC) treated with intensity-modulated radiotherapy and simultaneous integrated boost– intensity-modulated radiation therapy (SIB-IMRT).Methods: Patients with NPC (n = 300) who received SIB-IMRT were included. Survival by T-classification, N-classification, and stage group of each staging system was assessed.Results: For T-classification, nonsignificant difference was observed between T1 and T2 and between T2 and T3 disease (P = 0.066 and 0.106, respectively) for overall survival (OS) in the 7th staging system, whereas all these differences were significant in the 8th staging system (all P < 0.05). The survival curves for disease-free survival (DFS) and LRFS in both staging systems were similar, except for the comparison of T2 and T4 disease for LRFS (P = 0.07 for 7th edition; P = 0.011 for 8th edition). For N-classification, significant differences were observed between N2 and N3 diseases after revision (P = 0.046 and P = 0.043 for OS and DFS, respectively). For staging system, no significant difference was observed between IVA and IVB of 7th edition.Conclusion: The 8th AJCC staging system appeared to have superior prognosis value in the SIB-IMRT era compared with the 7th edition.

scholarly journals Validation and Modification of Staging Systems for Poorly Differentiated Pancreatic Neuroendocrine Carcinoma

2019 ◽  
Author(s):  
Haihong Wang ◽  
Zhenyu Lin ◽  
Guiling Li ◽  
Dejun Zhang ◽  
Dandan Yu ◽  
...  
Keyword(s):  
Stage Iv ◽  
Staging System ◽  
Risk Groups ◽  
Tnm Staging ◽  
7Th Edition ◽  
Staging Systems ◽  
Significant Difference ◽  
Ajcc Staging System ◽  
Poorly Differentiated ◽  
Ajcc Staging

Abstract Background The American Joint Committee on Cancer (AJCC) staging classifications and the European Neuroendocrine Tumor Society (ENETS) are two broadly used systems for pancreatic neuroendocrine tumors. This study aims to identify the most accurate and useful TNM staging system for poorly differentiated pancreatic neuroendocrine carcinomas(pNECs). Methods An analysis was performed to evaluate the application of the ENETS, 7th edition (7th) AJCC and 8th edition (8th) AJCC staging classifications using the Surveillance, Epidemiology, and End Results (SEER) registry (N = 568 patients). A modified system was proposed based on analysis of the 7th AJCC classification. Results In multivariable analyses, only the 7th AJCC staging system allocated patients into four different risk groups, compared with the 8th AJCC staging system and ENETS staging system, although there was no significant difference. We modified the staging classification by maintaining the T and M definitions of the 7th AJCC staging and adopting new staging definitions. An increased hazard ratio (HR) of death was also observed from class I to class IV for the modified 7th (m7th) staging system (compared with stage I disease; HR for stage II =1.23, 95% confidence interval (CI)= 0.73-2.06, P =0.44; HR for stage III =2.20, 95% CI =1.06-4.56, P=0.03; HR for stage IV =4.95, 95% CI =3.20-7.65, P < 0.001).The concordance index (C-index) was higher for local disease with the m7th AJCC staging system than with the 7th AJCC staging system. Conclusions The m7th AJCC staging system for pNECs proposed in this study provides improvements and may be assessed for potential adoption in the next edition.

scholarly journals Validation and Modification of Staging Systems for Poorly Differentiated Pancreatic Neuroendocrine Carcinoma

2020 ◽  
Author(s):  
Haihong Wang ◽  
Zhenyu Lin ◽  
Guiling Li ◽  
Dejun Zhang ◽  
Dandan Yu ◽  
...  
Keyword(s):  
Stage Iv ◽  
Staging System ◽  
Risk Groups ◽  
Tnm Staging ◽  
7Th Edition ◽  
Staging Systems ◽  
Significant Difference ◽  
Ajcc Staging System ◽  
Poorly Differentiated ◽  
Ajcc Staging

Abstract Background: The American Joint Committee on Cancer (AJCC) and the European Neuroendocrine Tumor Society (ENETS) staging classifications are two broadly used systems for pancreatic neuroendocrine tumors. This study aims to identify the most accurate and useful tumor–node–metastasis (TNM) staging system for poorly differentiated pancreatic neuroendocrine carcinomas(pNECs).Methods: An analysis was performed to evaluate the application of the ENETS, 7th edition (7th) AJCC and 8th edition (8th) AJCC staging classifications using the Surveillance, Epidemiology, and End Results (SEER) registry (N = 568 patients), and a modified system based on the analysis of the 7th AJCC classification was proposed Results: In multivariable analyses, only the 7th AJCC staging system allocated patients into four different risk groups, although there was no significant difference. We modified the staging classification by maintaining the T and M definitions of the 7th AJCC staging and adopting new staging definitions. An increased hazard ratio (HR) of death was also observed from class I to class IV for the modified 7th (m7th) staging system (compared with stage I disease; HR for stage II =1.23, 95% confidence interval (CI)= 0.73-2.06, P =0.44; HR for stage III =2.20, 95% CI =1.06-4.56, P=0.03; HR for stage IV =4.95, 95% CI =3.20-7.65, P < 0.001).The concordance index (C-index) was higher for local disease with the m7th AJCC staging system than with the 7th AJCC staging system. Conclusions: The m7th AJCC staging system for pNECs proposed in this study provides improvements and may be assessed for potential adoption in the next edition.

Prognostic Accuracy of the Eighth Edition of TNM Classification Compared with the Seventh and Sixth Edition for Perihilar Cholangiocarcinoma

2020 ◽  
Author(s):  
Hans Michael Hau ◽  
Felix Meyer ◽  
Sebastian Rademacher ◽  
Robert Sucher ◽  
Daniel Seehofer
Keyword(s):  
Liver Resection ◽  
Tnm Classification ◽  
Staging System ◽  
Perihilar Cholangiocarcinoma ◽  
7Th Edition ◽  
Prognostic Accuracy ◽  
Staging Systems ◽  
Ajcc Staging System ◽  
Ajcc Staging ◽  
8Th Edition

Abstract Background This study was conducted to evaluate and compare the prognostic value and performance of the 6th, 7th, and 8th editions of the American Joint Committee on Cancer (AJCC) staging system when applied to patients undergoing surgery for perihilar cholangiocarcinoma (PHC). Methods Patients undergoing liver resection with curative intention for PHC between 2002 and 2019 were identified from a prospective database. Histopathological parameters and stage of the PHC were assessed according to the 6th, 7th, and 8th editions of the tumor node metastasis (TNM) classification. The prognostic accuracy between staging systems was compared using the area under the receiver operating characteristic curve (AUC) model. Results Data for a total of 95 patients undergoing liver resection for PHC were analyzed. The median overall survival time was 21 months (95% CI 8.1–33.9), and the 3- and 5-year survival rates were 46.1% and 36.2%, respectively. Staging according to the 8th edition versus the 7th edition resulted in reclassification of 25 patients (26.3%). The log-rank p-values for the 7th and 8th edition were highly statistically significant (p ≤ 0.01) compared to the 6th edition (p = 0.035). The AJCC 8th edition staging system had a slightly better discrimination ability, with an AUC of 0.69 (95% CI: 0.52–0.84) compared to 0.61 (95% CI: 0.51–0.73) for the 7th edition. Multivariate survival analysis revealed male gender, age > 65 years, positive resection margins, presence of distant metastases, poorly tumor differentiation, lymph node involvement such as no caudate lobe resection as independent predictors of poor survival (p < 0.05). Conclusion The newly released 8th edition of the AJCC staging system demonstrated a poor to moderate ability to predict prognosis of patients undergoing liver resection for perihilar cholangiocarcinoma; the result was only slightly better than the previous 7th edition. Further refinements are needed to improve the prognostic ability of the AJCC staging system for perihilar cholangiocarcinoma and to identify other prognostic factors that can potentially improve individual patient prognostication.

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