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Ke J, Xie Y, Huang S, Wang W, Zhao Z, Lin W. Comparison of esophageal cancer survival after neoadjuvant chemoradiotherapy plus surgery versus definitive chemoradiotherapy: A systematic review and meta-analysis. Asian J Surg 2024; 47:3827-3840. [PMID: 38448293 DOI: 10.1016/j.asjsur.2024.02.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/31/2023] [Accepted: 02/16/2024] [Indexed: 03/08/2024] Open
Abstract
Surgery after neoadjuvant chemoradiotherapy remains the gold standard for the treatment of resectable esophageal cancer (EC); however, chemoradiotherapy without surgery has been recommended in specific cases. The aim of this meta-analysis is to analyse the survival between surgeries after neoadjuvant chemoradiotherapy compared with definitive chemoradiotherapy in order to provide a theoretical basis for clinically individualised differential treatment. We conducted an initial search of MEDLINE (PubMed), the Cochrane Library, and Embase for English-only articles that compared treatment regimens and provided survival data. According to the final I2 value of the two survival indicators, the random effect model or fixed effect model was used to calculate the overall hazard ratio (HR) and 95% confidence intervals (CI). Cochrane's Q test was used to judge the heterogeneity of the studies, and a funnel plot was used to evaluate for publication bias. A sensitivity analysis was performed to verify the stability of the included studies. A total of 38 studies involving 29161 patients (neoadjuvant therapy: 15401, definitive chemoradiotherapy: 13760) were included in the analysis. The final pooled results (HR = 0.74, 95% CI: 0.67-0.82) showed a statistically significant increase in overall survival with neoadjuvant chemoradiotherapy plus surgery compared with definitive chemoradiotherapy. Subgroup analyses were performed to determine the effects of heterogeneity, additional treatment regimens, study types, and geographic regions, as well as histologic differences, complications, and recurrence, on the overall results. For people with esophageal cancer that can be removed, neoadjuvant chemoradiotherapy combined with surgery improves survival compared to definitive chemoradiotherapy. However, more research is needed to confirm these results and help doctors make decisions about treatment.
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Affiliation(s)
- Junli Ke
- Department of Thoracic Surgery, Gaozhou People's Hospital Affiliated to Guangdong Medical University, Maoming, China
| | - Yujie Xie
- Department of Thoracic Surgery, Gaozhou People's Hospital Affiliated to Guangdong Medical University, Maoming, China
| | - Shenyang Huang
- Department of Cardiothoracic Surgery, Guangdong Medical University, Zhanjiang, China
| | - Wei Wang
- Graduate School of Guangdong Medical University, Zhanjiang, China
| | - Zhengang Zhao
- Department of Cardiothoracic Surgery, Guangdong Medical University, Zhanjiang, China
| | - Wanli Lin
- Department of Thoracic Surgery, Gaozhou People's Hospital Affiliated to Guangdong Medical University, Maoming, China.
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2
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Chou SY, Lu HI, Chen YH, Lo CM, Lin YH, Huang TT, Fang FM, Chen LC, Chen Y, Chiu YC, Chou YP, Li SH, Wang YM. The Radiation Dose to the Left Supraclavicular Fossa is Critical for Anastomotic Leak Following Esophagectomy – A Dosimetric Outcome Analysis. Cancer Manag Res 2022; 14:1603-1613. [PMID: 35530530 PMCID: PMC9075167 DOI: 10.2147/cmar.s354667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/24/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Shang-Yu Chou
- Department of Radiation Oncology & Proton and Radiation Therapy Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hung-I Lu
- Department of Thoracic & Cardiovascular Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yen-Hao Chen
- Department of Hematology-Oncology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chien-Ming Lo
- Department of Thoracic & Cardiovascular Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yun-Hsuan Lin
- Department of Radiation Oncology & Proton and Radiation Therapy Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Tzu-Ting Huang
- Department of Radiation Oncology & Proton and Radiation Therapy Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Fu-Min Fang
- Department of Radiation Oncology & Proton and Radiation Therapy Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Li-Chun Chen
- Department of Thoracic & Cardiovascular Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu Chen
- Department of Thoracic & Cardiovascular Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Chun Chiu
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yeh-Pin Chou
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shau-Hsuan Li
- Department of Hematology-Oncology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- Shau-Hsuan Li, Department of Hematology-Oncology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, No. 123, Ta-Pei Road, Niaosong Dist., Kaohsiung, 833, Taiwan, Tel +886-7-7317123 ext. 8303, Fax +886-7-7322813, Email
| | - Yu-Ming Wang
- Department of Radiation Oncology & Proton and Radiation Therapy Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, Taiwan
- Correspondence: Yu-Ming Wang, Department of Radiation Oncology & Proton and Radiation Therapy Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, No. 129, Ta-Pei Road, Niaosong Dist., Kaohsiung, 833, Taiwan, Tel +886-7-7317123 ext. 7000, Fax +886-7-7322813, Email
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Thomas M, Mortensen HR, Hoffmann L, Møller DS, Troost EGC, Muijs CT, Berbee M, Bütof R, Nicholas O, Radhakrishna G, Defraene G, Nafteux P, Nordsmark M, Haustermans K. Proposal for the delineation of neoadjuvant target volumes in oesophageal cancer. Radiother Oncol 2020; 156:102-112. [PMID: 33285194 DOI: 10.1016/j.radonc.2020.11.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE To define instructions for delineation of target volumes in the neoadjuvant setting in oesophageal cancer. MATERIALS AND METHODS Radiation oncologists of five European centres participated in the following consensus process: [1] revision of published (MEDLINE) and national/institutional delineation guidelines; [2] first delineation round of five cases (patient 1-5) according to national/institutional guidelines; [3] consensus meeting to discuss the results of step 1 and 2, followed by a target volume delineation proposal; [4] circulation of proposed instructions for target volume delineation and atlas for feedback; [5] second delineation round of five new cases (patient 6-10) to peer review and validate (two additional centres) the agreed delineation guidelines and atlas; [6] final consensus on the delineation guidelines depicted in an atlas. Target volumes of the delineation rounds were compared between centres by Dice similarity coefficient (DSC) and maximum/mean undirected Hausdorff distances (Hmax/Hmean). RESULTS In the first delineation round, the consistency between centres was moderate (CTVtotal: DSC = 0.59-0.88; Hmean = 0.2-0.4 cm). Delineations in the second round were much more consistent. Lowest variability was obtained between centres participating in the consensus meeting (CTVtotal: DSC: p < 0.050 between rounds for patients 6/7/8/10; Hmean: p < 0.050 for patients 7/8/10), compared to validation centres (CTVtotal: DSC: p < 0.050 between validation and consensus meeting centres for patients 6/7/8; Hmean: p < 0.050 for patients 7/10). A proposal for delineation of target volumes and an atlas were generated. CONCLUSION We proposed instructions for target volume delineation and an atlas for the neoadjuvant radiation treatment in oesophageal cancer. These will enable a more uniform delineation of patients in clinical practice and clinical trials.
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Affiliation(s)
- Melissa Thomas
- KU Leuven - University of Leuven, Department of Oncology - Laboratory of Experimental Radiotherapy, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Belgium.
| | - Hanna R Mortensen
- Aarhus University Hospital, Danish Center of Particle Therapy, Denmark
| | - Lone Hoffmann
- Aarhus University Hospital, Department of Oncology, Denmark
| | - Ditte S Møller
- Aarhus University Hospital, Department of Oncology, Denmark
| | - Esther G C Troost
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, and Helmholtz-Zentrum Dresden-Rossendorf, Germany; Institute of Radiooncology - OncoRay, Helmholtz-Zentrum Dresden-Rossendorf, Germany
| | - Christina T Muijs
- University Medical Center Groningen, University of Groningen, Department of Radiation Oncology, The Netherlands
| | - Maaike Berbee
- Maastricht University Medical Centre, Department of Radiation Oncology (Maastro), GROW School for Oncology, the Netherlands
| | - Rebecca Bütof
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, and Helmholtz-Zentrum Dresden-Rossendorf, Germany
| | - Owen Nicholas
- Swansea NHS Trust, Department of Clinical Oncology, Swansea, UK
| | - Ganesh Radhakrishna
- Christie NHS Foundation Trust, Department of Clinical Oncology, Manchester, UK
| | - Gilles Defraene
- KU Leuven - University of Leuven, Department of Oncology - Laboratory of Experimental Radiotherapy, Belgium
| | - Philippe Nafteux
- University Hospitals Leuven, Department of Thoracic Surgery, Belgium
| | | | - Karin Haustermans
- KU Leuven - University of Leuven, Department of Oncology - Laboratory of Experimental Radiotherapy, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Belgium
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Zhang W, Zhao J, Han W, Zhang H, Wang X, Li C, Chen J, Wang X, Zhao Y, Qiao X, Zhou Z, Han C, Zhu S, Shen W, Wang L, Ge X, Sun X, Zhang K, Hu M, Li L, Hao C, Li G, Xu Y, Wang Y, Lu N, Liu M, Qian S, Xiao Z, Wang P, Pang Q. Dose escalation of 3D radiotherapy is effective for esophageal squamous cell carcinoma: a multicenter retrospective analysis (3JECROG R-03). ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1140. [PMID: 33240989 PMCID: PMC7576038 DOI: 10.21037/atm-20-4672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background To evaluate the impact of radiation dose escalation on overall survival (OS) in patients with non-metastatic esophageal squamous cell carcinoma (ESCC) treated with radical radiotherapy. Methods The clinical data of ESCC patients treated with three-dimensional (3D) radiotherapy alone or chemoradiotherapy were collected from multiple institutes and retrospectively analyzed. Patients who received radiation dose ≥40 Gy were included. Radiation dose as a continuous variable was entered into the Cox regression model by using penalized spline regression to allow for a nonlinear relationship between radiation dose and OS to be identified. Patients were stratified into five groups according to EQD2. The Kaplan-Meier method was used to assess the OS in different dose groups. Univariate and multivariate analyses were performed to evaluate the factors associated with OS. Results A total of 2,469 patients were included from 10 institutes across China. The median follow-up time was 58.3 months [95% confidence interval (CI): 56.4–60.2 months]. The median OS and PFS time were 24.3 months (95% CI: 22.5–26.2 months) and 18.0 months (95% CI: 16.4–19.6 months), respectively. The risk of death decreased sharply with a dose up to 60 to 62 Gy, before increasing slightly after the dose was elevated beyond 62 Gy. Multivariate analysis indicated that the chance of death was significantly decreased in patients who received radiotherapy doses of 60–62 Gy [P=0.028, hazard ratio (HR) 0.85, 95% CI: 0.73–0.98)], compared with those who received radiotherapy doses of 40–60 Gy. Conclusions Our results reveal radiation dose is a significant prognostic factor of survival for ESCC patients. Higher radiation dose contributes to much more favorable survival outcomes for ESCC patients receiving radical radiotherapy by modern techniques, and 60 Gy or above might be the most optimal radiation dose.
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Affiliation(s)
- Wencheng Zhang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Jingjing Zhao
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Weiming Han
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hualei Zhang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Xin Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chen Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junqiang Chen
- Department of Radiation Oncology, Fujian Cancer Hospital/Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Xiaomin Wang
- Department 4th of Radiation Oncology, Anyang Cancer Hospital, Anyang, China
| | - Yidian Zhao
- Department 4th of Radiation Oncology, Anyang Cancer Hospital, Anyang, China
| | - Xueying Qiao
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhiguo Zhou
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chun Han
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shuchai Zhu
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wenbin Shen
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lan Wang
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaolin Ge
- Department of Radiation Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xinchen Sun
- Department of Radiation Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Kaixian Zhang
- Department of Oncology, Tengzhou Central People's Hospital, Tengzhou, China
| | - Miaomiao Hu
- Department of Oncology, Tengzhou Central People's Hospital, Tengzhou, China
| | - Ling Li
- Department of Oncology, Tengzhou Central People's Hospital, Tengzhou, China
| | - Chongli Hao
- Department of Oncology, Tengzhou Central People's Hospital, Tengzhou, China
| | - Gaofeng Li
- Department of Radiation Oncology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Yonggang Xu
- Department of Radiation Oncology, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Yadi Wang
- Department of Radiation Oncology, The Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Na Lu
- Department of Radiation Oncology, The Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Miaoling Liu
- Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding, China
| | - Shuai Qian
- Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding, China
| | - Zefen Xiao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ping Wang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Qingsong Pang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
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Voeten DM, den Bakker CM, Heineman DJ, Ket JCF, Daams F, van der Peet DL. Definitive Chemoradiotherapy Versus Trimodality Therapy for Resectable Oesophageal Carcinoma: Meta-analyses and Systematic Review of Literature. World J Surg 2019; 43:1271-1285. [PMID: 30607604 DOI: 10.1007/s00268-018-04901-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Standard therapy for loco-regionally advanced, resectable oesophageal carcinoma is trimodality therapy (TMT) consisting of neoadjuvant chemoradiotherapy and oesophagectomy. Evidence of survival advantage of TMT over organ-preserving definitive chemoradiotherapy (dCRT) is inconclusive. The aim of this study is to compare survival between TMT and dCRT. METHODS A systematic review and meta-analyses were conducted. Randomised controlled trials and observational studies on resectable, curatively treated, oesophageal carcinoma patients above 18 years were included. Three online databases were searched for studies comparing TMT with dCRT. Primary outcomes were 1-, 2-, 3- and 5-year overall survival rates. Risk of bias was assessed using the Cochrane risk of bias tools for RCTs and cohort studies. Quality of evidence was evaluated according to Grading of Recommendation Assessment, Development and Evaluation. RESULTS Thirty-two studies described in 35 articles were included in this systematic review, and 33 were included in the meta-analyses. Two-, three- and five-year overall survival was significantly lower in dCRT compared to TMT, with relative risks (RRs) of 0.69 (95% CI 0.57-0.83), 0.76 (95% CI 0.63-0.92) and 0.57 (95% CI 0.47-0.71), respectively. When only analysing studies with equal patient groups at baseline, no significant differences for 2-, 3- and 5-year overall survival were found with RRs of 0.83 (95% CI 0.62-1.10), 0.81 (95% CI 0.57-1.14) and 0.63 (95% CI 0.36-1.12). CONCLUSION These meta-analyses do not show clear survival advantage for TMT over dCRT. Only a non-significant trend towards better survival was seen, assuming comparable patient groups at baseline. Non-operative management of oesophageal carcinoma patients might be part of a personalised and tailored treatment approach in future. However, to date hard evidence proving its non-inferiority compared to operative management is lacking.
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Affiliation(s)
- Daan M Voeten
- Department of Gastrointestinal Surgery, VU University Medical Center, De Boelelaan 1117, 7F020, 1081 HV, Amsterdam, The Netherlands.
| | - Chantal M den Bakker
- Department of Gastrointestinal Surgery, VU University Medical Center, De Boelelaan 1117, 7F020, 1081 HV, Amsterdam, The Netherlands
| | - David J Heineman
- Department of Gastrointestinal Surgery, VU University Medical Center, De Boelelaan 1117, 7F020, 1081 HV, Amsterdam, The Netherlands
| | | | - Freek Daams
- Department of Gastrointestinal Surgery, VU University Medical Center, De Boelelaan 1117, 7F020, 1081 HV, Amsterdam, The Netherlands
| | - Donald L van der Peet
- Department of Gastrointestinal Surgery, VU University Medical Center, De Boelelaan 1117, 7F020, 1081 HV, Amsterdam, The Netherlands
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Chen Y, Zhu HP, Wang T, Sun CJ, Ge XL, Min LF, Zhang XW, Jia QQ, Yu J, Yang JQ, Allgayer H, Abba ML, Zhang XZ, Sun XC. What is the optimal radiation dose for non-operable esophageal cancer? Dissecting the evidence in a meta-analysis. Oncotarget 2017; 8:89095-89107. [PMID: 29179502 PMCID: PMC5687672 DOI: 10.18632/oncotarget.18760] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 06/05/2017] [Indexed: 11/25/2022] Open
Abstract
The standard radiation dose 50.4 Gy with concurrent chemotherapy for localized inoperable esophageal cancer as supported by INT-0123 trail is now being challenged since a radiation dose above 50 Gy has been successfully administered with an observable dose-response relationship and insignificant untoward effects. Therefore, to ascertain the treatment benefits of different radiation doses, we performed a meta-analysis with 18 relative publications. According to our findings, a dose between 50 and 70 Gy appears optimal and patients who received ≥ 60 Gy radiation had a significantly better prognosis (pooled HR = 0.78, P = 0.004) as compared with < 60 Gy, especially in Asian countries (pooled HR = 0.75, P = 0.003). However, contradictory results of treatment benefit for ≥ 60 Gy were observed in two studies from Western countries, and the pooled treatment benefit of ≥ 60 Gy radiation was inconclusive (pooled HR = 0.86, P = 0.64). There was a marginal benefit in locoregional control in those treated with high dose (> 50.4/51 Gy) radiation when compared with those treated with low dose (≤ 50.4/51 Gy) radiation (pooled OR = 0.71, P = 0.06). Patients that received ≥ 60 Gy radiation had better locoregional control (OR = 0.29, P = 0.001), and for distant metastasis control, neither the > 50.4 Gy nor the ≥ 60 Gy treated group had any treatment benefit as compared to the groups that received ≤ 50.4 Gy and < 60 Gy group respectively. Taken together, a dose range of 50 to 70 Gy radiation with CCRT is recommended for non-operable EC patients. A dose of ≥ 60 Gy appears to be better in improving overall survival and locoregional control, especially in Asian countries, while the benefit of ≥ 60 Gy radiation in Western countries still remains controversial.
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Affiliation(s)
- Yong Chen
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Hui-Ping Zhu
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Medical Oncology, Zhangjiagang First People's Hospital, Zhangjiagang, Jiangsu, China
| | - Tao Wang
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Chang-Jiang Sun
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Xiao-Lin Ge
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ling-Feng Min
- Department of Respiratory Medicine, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Xian-Wen Zhang
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Qing-Qing Jia
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Jie Yu
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Jian-Qi Yang
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Heike Allgayer
- Department of Experimental Surgery-Cancer Metastasis, Medical Faculty Mannheim, University of Heidelberg, Germany and Centre for Biomedicine and Medical Technology, Medical Faculty Mannheim, University of Heidelberg, Germany
| | - Mohammed L. Abba
- Department of Experimental Surgery-Cancer Metastasis, Medical Faculty Mannheim, University of Heidelberg, Germany and Centre for Biomedicine and Medical Technology, Medical Faculty Mannheim, University of Heidelberg, Germany
| | - Xi-Zhi Zhang
- Department of Medical Oncology, Northern Jiangsu People's Hospital, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Xin-Chen Sun
- Department of Radiotherapy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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