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Lv Z, Yuan L, He J, Gao S, Xue Q, Mao Y. Time-dependent prognostic impact of circumferential resection margin in T3 thoracic esophageal squamous cell carcinoma. Dis Esophagus 2024:doae065. [PMID: 39140869 DOI: 10.1093/dote/doae065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/17/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024]
Abstract
Esophageal cancer presents a clinical challenge due to its high incidence and unfavorable prognosis. The prognostic role of the circumferential resection margin (CRM) remains highly controversial, potentially due to its temporal dynamics coupled with variability in follow-up durations across studies. We aimed to explore the time-dependent prognostic significance of CRM in T3 esophageal squamous cell carcinomas (ESCCs). We systematically reviewed literature from 1990 to 2023 to determine how follow-up duration influences the prognostic role of CRM in esophageal cancer. Concurrently, we performed a retrospective examination of 354 patients who underwent treatment at the National Cancer Center between 2015 and 2018. Integrating a time interaction term in the Cox regression analyses enabled us to not only identify independent risk factors affecting overall survival (OS) but also to specifically scrutinize the potential temporal variations in CRM's prognostic impact. Our literature review suggested that CRM's influence on prognosis diminishes with longer follow-up durations for both classifications, namely the Royal College of Pathologists (RCP) (β = -0.003, P < 0.001) and the College of American Pathologists (CAP) (β = -0.007, P < 0.001). Time-dependent multivariate Cox regression analysis emphasized the evolving nature of CRM's prognostic effect, and the inclusion of the time interaction term enhanced model accuracy. In conclusion, CRM is an independent prognostic factor for T3 thoracic ESCC patients. Its influence appears to decrease over extended follow-up periods, shedding light on the heterogeneity seen in previous studies. With the time interaction term, CRM becomes a more precise post-operative prognostic indicator for esophageal cancer.
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Affiliation(s)
- Zhuoheng Lv
- Department of Thoracic Surgery, National Cancer Center/ National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ligong Yuan
- Department of Thoracic Surgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/ National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shugeng Gao
- Department of Thoracic Surgery, National Cancer Center/ National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qi Xue
- Department of Thoracic Surgery, National Cancer Center/ National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yousheng Mao
- Department of Thoracic Surgery, National Cancer Center/ National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Norton BC, Aslam N, Telese A, Papaefthymiou A, Singh S, Sehgal V, Mitchison M, Jansen M, Banks M, Graham D, Haidry R. Risk of metastasis among patients diagnosed with high-risk T1 esophageal adenocarcinoma who underwent endoscopic follow-up. Dis Esophagus 2024; 37:doae027. [PMID: 38580314 DOI: 10.1093/dote/doae027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 04/07/2024]
Abstract
Esophagectomy and lymphadenectomy have been the standard of care for patients at high risk (HR) of lymph node metastasis following a diagnosis of early esophageal adenocarcinoma (OAC) after endoscopic resection (ER). However, recent cohorts suggest lymph node metastasis risk is lower than initially estimated, suggesting organ preservation with close endoscopic follow-up is a viable option. We report on the 3- and 5-year risk of lymph node/distant metastasis among patients diagnosed with early HR-T1 OAC undergoing endoscopic follow-up. Patients diagnosed with HR-T1a or T1b OAC following ER at a tertiary referral center were identified and retrospectively analyzed from clinical records between 2010 and 2021. Patients were included if they underwent endoscopic follow-up after resection and were divided into HR-T1a, low risk (LR)-T1b and HR-T1b cohorts. After ER, 47 patients underwent endoscopic follow-up for early HR OAC. In total, 39 patients had an R0 resection with a combined 3- and 5-year risk of LN/distant metastasis of 6.9% [95% confidence interval (CI): 1.8-25] and 10.9% (95% CI, 3.6-30.2%), respectively. There was no significant difference when stratifying by histopathological subtype (P = 0.64). Among those without persistent luminal disease on follow-up, the 5-year risk was 4.1% (95% CI, 0.6-26.1). Two patients died secondary to OAC with an all-cause 5-year survival of 57.5% (95% CI, 39.5-71.9). The overall risk of LN/distant metastasis for early HR T1 OAC was lower than historically reported. Endoscopic surveillance can be a reasonable approach in highly selected patients with an R0 resection and complete luminal eradication, but clear, evidence-based surveillance guidelines are needed.
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Affiliation(s)
- Benjamin Charles Norton
- Department of Gastroenterology, University College London Hospitals, London, UK
- Centre for Obesity Research, University College London, London, UK
- Department of Gastroenterology, Digestive diseases & Surgery Institute, Cleveland Clinic London, London, UK
| | - Nasar Aslam
- Department of Gastroenterology, University College London Hospitals, London, UK
| | - Andrea Telese
- Department of Gastroenterology, University College London Hospitals, London, UK
- Centre for Obesity Research, University College London, London, UK
| | | | - Shilpi Singh
- Department of Histopathology, University College London Hospitals, London, UK
| | - Vinay Sehgal
- Department of Gastroenterology, University College London Hospitals, London, UK
| | - Miriam Mitchison
- Department of Histopathology, University College London Hospitals, London, UK
| | - Marnix Jansen
- Department of Histopathology, University College London Hospitals, London, UK
| | - Matthew Banks
- Department of Gastroenterology, University College London Hospitals, London, UK
| | - David Graham
- Department of Gastroenterology, University College London Hospitals, London, UK
| | - Rehan Haidry
- Department of Gastroenterology, Digestive diseases & Surgery Institute, Cleveland Clinic London, London, UK
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Lu RD, Wei ZD, Liu YX, Tian D, Zhang HL, Shang QX, Hu WP, Yang L, Yang YS, Chen LQ. Increased resected lymph node stations improved survival of esophageal squamous cell carcinoma. BMC Cancer 2024; 24:177. [PMID: 38317075 PMCID: PMC10845591 DOI: 10.1186/s12885-024-11886-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 01/16/2024] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Neoadjuvant chemoradiotherapy (nCRT) and surgery have been recommended as the standard treatments for locally advanced esophageal squamous cell carcinoma (ESCC). In addition, nodal metastases decreased in frequency and changed in distribution after neoadjuvant therapy. This study aimed to examine the optimal strategy for lymph node dissection (LND) in patients with ESCC who underwent nCRT. METHODS The hazard ratios (HRs) for overall survival (OS) and disease-free survival (DFS) were calculated using the Cox proportional hazard model. To determine the minimal number of LNDs (n-LNS) or least station of LNDs (e-LNS), the Chow test was used. RESULTS In total, 333 patients were included. The estimated cut-off values for e-LNS and n-LNS were 9 and 15, respectively. A higher number of e-LNS was significantly associated with improved OS (HR: 0.90; 95% CI 0.84-0.97, P = 0.0075) and DFS (HR: 0.012; 95% CI: 0.84-0.98, P = 0.0074). The e-LNS was a significant prognostic factor in multivariate analyses. The local recurrence rate of 23.1% in high e-LNS is much lower than the results of low e-LNS (13.3%). Comparable morbidity was found in both the e-LNS and n-LND subgroups. CONCLUSION This cohort study revealed an association between the extent of LND and overall survival, suggesting the therapeutic value of extended lymphadenectomy during esophagectomy. Therefore, more lymph node stations being sampled leads to higher survival rates among patients who receive nCRT, and standard lymphadenectomy of at least 9 stations is strongly recommended.
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Affiliation(s)
- Run-Da Lu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Zheng-Dao Wei
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Yi-Xin Liu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Dong Tian
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Han-Lu Zhang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Wei-Peng Hu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Lin Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China.
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, No. 37 Guoxue Alley, 610041, Chengdu, China.
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Potdar A, Chen KC, Kuo SW, Lin MW, Liao HC, Huang PM, Lee YH, Wang HP, Han ML, Cheng CH, Hsu CH, Huang TC, Hsu FM, Lu SL, Lee JM. Prognostication and optimal criteria of circumferential margin involvement for esophageal cancer after chemoradiation and esophagectomy. Front Oncol 2023; 13:1111998. [PMID: 37503328 PMCID: PMC10369182 DOI: 10.3389/fonc.2023.1111998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 06/09/2023] [Indexed: 07/29/2023] Open
Abstract
Purpose Circumferential radial margin (CRM) involvement by tumor after resection for esophageal cancer has been suggested as a significant prognostic factor. However, the prognostic value of CRM involvement after surgery with neoadjuvant concurrent chemoradiotherapy (CCRT) is unclear. This study aimed to evaluate the prognostic value of and survival outcomes in CRM involvement as defined by the Royal College of Pathologists (RCP) and the College of American Pathologists (CAP) for patients with esophageal cancer undergoing neoadjuvant CCRT and esophagectomy. Methods A total of 299 patients with esophageal cancer who underwent neoadjuvant CCRT followed by esophagectomy between 2006 and 2016 were enrolled in our study. The CRM status of the specimens obtained was determined pathologically according to both the CAP and RCP criteria. Survival analyses were performed and compared according to the two criteria. Results Positive CRM was found in 102 (34.1%) and 40 (13.3%) patients according to RCP and CAP criteria, respectively. The overall and progression-free survival rates were significantly lower in the CRM-positive group than in the CRM-negative group according to both the RCP and CAP criteria. However, under multivariate analysis, in addition to pathological T and N staging of the tumor, only CAP-defined CRM positivity was a significant prognostic factor with adjusted hazard ratios of 2.64 (1.56-4.46) and 2.25 (1.34-3.78) for overall and progression-free survival, respectively (P < 0.001). Conclusion In patients with esophageal cancer undergoing neoadjuvant CRT followed by esophagectomy, CAP-defined CRM positivity is an independent predictor of survival. Adjuvant therapy should be offered to patients with positive CRM.
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Affiliation(s)
- Ankit Potdar
- Department of Gastroenterology, Global Hospital, Mumbai, India
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ke-Cheng Chen
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shuenn-Wen Kuo
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Mong-Wei Lin
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsien-Chi Liao
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Pei-Ming Huang
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yi-Hsuan Lee
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsiu-Po Wang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ming-Lun Han
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Hsien Cheng
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Hung Hsu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Ta-Chen Huang
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Feng-Ming Hsu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Shao-Lun Lu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Jang-Ming Lee
- Division of Thoracic Surgery, Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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Yang Y, Xin X, Chen P, Shi X, Yang C, Fan J, Zhang Y, Jia X. Left compared with right thoracic approach thoracotomy in esophageal cancer: a retrospective cohort study. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04765-4. [PMID: 37071207 DOI: 10.1007/s00432-023-04765-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 04/08/2023] [Indexed: 04/19/2023]
Abstract
BACKGROUND Esophagectomy is regarded as one of the optimal treatments for resectable esophageal cancer. However, the impact of surgical approach on the long-term prognosis of esophageal cancer remains controversial. This study attempted to compare the long-term survival outcomes of patients receiving left and right thoracic esophagectomy for esophageal cancer. METHODS A total of 985 patients underwent esophagectomy (including 453 left and 532 right thoracic approach) for esophageal cancer in Henan Cancer Hospital from January 2015 to December 2016 were enrolled. Their 5 year overall survival (OS) and disease-free survival (DFS) were retrospectively collected. Cox regression was performed to compare OS and DFS in patients who underwent left and right thoracic esophagectomy. Propensity score matching (PSM) analysis was used to balance confounding factors. RESULTS The 5 year OS rates were 60.21% in the left and 51.60% in the right thoracic esophagectomy, respectively (P = 0.67). The 5 year DFS rates were 56.73% in the left and 47.93% and in the right thoracic esophagectomy, respectively (P = 0.36). Cox regression analysis showed there was no significant difference in long-term survival between patients with left and right surgical access (OS: HR = 0.95, 95% CI 0.77-1.18; DFS: HR = 0.91, 95% CI 0.74-1.12). In the cohort of patients obtained by PSM, Cox regression analysis yielded the similar results. CONCLUSION For patients with resectable esophageal cancer, the surgical treatment through left thoracic approach can achieve the same long-term survival outcomes as the right thoracic approach.
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Affiliation(s)
- Yongli Yang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Xin Xin
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Peinan Chen
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China
| | - Xuezhong Shi
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Chaojun Yang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Jingwen Fan
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Yi Zhang
- Department of Medical Record, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, China
| | - Xiaocan Jia
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China.
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Integrating Preoperative Computed Tomography and Clinical Factors for Lymph Node Metastasis Prediction in Esophageal Squamous Cell Carcinoma by Feature-Wise Attentional Graph Neural Network. Int J Radiat Oncol Biol Phys 2023:S0360-3016(23)00002-0. [PMID: 36641040 DOI: 10.1016/j.ijrobp.2022.12.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 01/13/2023]
Abstract
PURPOSE This study aimed to propose a regional lymph node (LN) metastasis prediction model for patients with esophageal squamous cell carcinoma (ESCC) that can learn and adaptively integrate preoperative computed tomography (CT) image features and nonimaging clinical parameters. METHODS AND MATERIALS Contrast-enhanced CT scans taken 2 weeks before surgery and 20 clinical factors, including general, pathologic, hematological, and diagnostic information, were collected from 357 patients with ESCC between October 2013 and November 2018. There were 999 regional LNs (857 negative, 142 positive) with pathologically confirmed status after surgery. All LNs were randomly divided into a training set (n = 738) and a validation set (n = 261) for testing. The feature-wise attentional graph neural network (FAGNN) was composed of (1) deep image feature extraction by the encoder of 3-dimensional UNet and high-level nonimaging factor representation by the clinical parameter encoder; (2) a feature-wise attention module for feature embedding with learnable adaptive weights; and (3) a graph attention layer to integrate the embedded features for final LN level metastasis prediction. RESULTS Among the 4 models we constructed, FAGNN using both CT and clinical parameters as input is the model with the best performance, and the area under the curve (AUC) reaches 0.872, which is better than manual CT diagnosis method, multivariable model using CT only (AUC = 0.797), multivariable model with combined CT and clinical parameters (AUC = 0.846), and our FAGNN using CT only (AUC = 0.853). CONCLUSIONS Our adaptive integration model improved the metastatic LN prediction performance based on CT and clinical parameters. Our model has the potential to foster effective fusion of multisourced parameters and to support early prognosis and personalized surgery or radiation therapy planning in patients with ESCC.
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Radulova-Mauersberger O, Distler M, Riediger C, Weitz J, Welsch T, Kirchberg J. How we do it-the use of peritoneal patches for reconstruction of vena cava inferior and portal vein in hepatopancreatobiliary surgery. Langenbecks Arch Surg 2022; 407:3819-3831. [PMID: 36136152 DOI: 10.1007/s00423-022-02662-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 08/21/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE Extended resections in hepatopancreatobiliary (HPB) surgery frequently require vascular resection to obtain tumor clearance. The use of alloplastic grafts may increase postoperative morbidity due to septic or thrombotic complications. The use of suitable autologous venous interponates (internal jugular vein, great saphenous vein) is frequently associated with additional incisions. The aim of this study was to report on our experience with venous reconstruction using the introperative easily available parietal peritoneum, focusing on key technical aspects. METHODS All patients who underwent HPB resections with venous reconstruction using peritoneal patches at our department between January 2017 and November 2021 were included in this retrospective analysis with median follow-up of 2 months (IQR: 1-8 months). We focused on technical aspects of the procedure and evaluated vascular patency and perioperative morbidity. RESULTS Parietal peritoneum patches (PPPs) were applied for reconstruction of the inferior vena cava (IVC) (13 patients) and portal vein (PV) (4 patients) during major hepatic (n = 14) or pancreatic (n = 2) resections. There were no cases of postoperative bleeding due to anastomotic leakage. Following PV reconstruction, two patients showed postoperative vascular stenosis after severe pancreatitis with postoperative pancreatic fistula and bile leakage, respectively. In patients with reconstruction of the IVC, no relevant perioperative vascular complications occurred. CONCLUSIONS The use of a peritoneal patch for reconstruction of the IVC in HPB surgery is a feasible, effective, and low-cost alternative to alloplastic, xenogenous, or venous grafts. The graft can be easily harvested and tailored to the required size. More evidence is still needed to confirm the safety of this procedure for the portal vein regarding long-term results.
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Affiliation(s)
- O Radulova-Mauersberger
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - M Distler
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.,National Center for Tumor Diseases (NCT/UCC), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany
| | - C Riediger
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.,National Center for Tumor Diseases (NCT/UCC), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany
| | - J Weitz
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany. .,National Center for Tumor Diseases (NCT/UCC), Dresden, Germany. .,German Cancer Research Center (DKFZ), Heidelberg, Germany. .,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. .,Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany.
| | - T Welsch
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - J Kirchberg
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.,National Center for Tumor Diseases (NCT/UCC), Dresden, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Dresden, Germany
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8
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Yang T, Huang S, Chen B, Chen Y, Liang W. A modified survival model for patients with esophageal squamous cell carcinoma based on lymph nodes: A study based on SEER database and external validation. Front Surg 2022; 9:989408. [PMID: 36157416 PMCID: PMC9489949 DOI: 10.3389/fsurg.2022.989408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/22/2022] [Indexed: 12/24/2022] Open
Abstract
Background The counts of examined lymph nodes (ELNs) in predicting the prognosis of patients with esophageal squamous cell carcinoma (ESCC) is a controversial issue. We conducted a retrospective study to develop an ELNs-based model to individualize ESCC prognosis. Methods Patients with ESCC from the SEER database and our center were strictly screened. The optimal threshold value was determine by the X-tile software. A prognostic model for ESCC patients was developed and validated with R. The model’s efficacy was evaluated by C-index, ROC curve, and decision curve analysis (DCA). Results 3,629 cases and 286 cases were screened from the SEER database and our center, respectively. The optimal cut-off value of ELNs was 10. Based on this, we constructed a model with a favorable C-index (training group: 0.708; external group 1: 0.687; external group 2: 0.652). The model performance evaluated with ROC curve is still reliable among the groups. 1-year AUC for nomogram in three groups (i.e., 0.753, 0.761, and 0.686) were superior to that of the TNM stage (P < 0.05). Similarly, the 3-year AUC and the 5-year AUC results for the model were also higher than that of the 8th TNM stage. By contrast, DCA showed the benefit of this model was better in the same follow-up period. Conclusion More than 10 ELNs are helpful to evaluate the survival of ESCC patients. Based on this, an improved model for predicting the prognosis of ESCC patients was proposed.
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Affiliation(s)
- Tianbao Yang
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Putian University, Putian, China
| | - Shijie Huang
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Putian University, Putian, China
| | - Boyang Chen
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Putian University, Putian, China
| | - Yahua Chen
- Department of Gastroenterology, The Affiliated Hospital of Putian University, Putian, China
- Correspondence: Wei Liang Yahua Chen
| | - Wei Liang
- Department of GastrointestinalEndoscopy, Fujian Provincial Hospital, Teaching Hospital of Fujian Medical University, Fuzhou, China
- Correspondence: Wei Liang Yahua Chen
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Shang QX, Yang YS, Xu LY, Yang H, Li Y, Li Y, Wu ZY, Fu JH, Yao XD, Xu XE, Wu JY, Chen LQ. Prognostic impact of lymph node harvest for patients with node-negative esophageal squamous cell carcinoma: a large-scale multicenter study. J Gastrointest Oncol 2021; 12:1951-1962. [PMID: 34790363 DOI: 10.21037/jgo-20-371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 07/28/2021] [Indexed: 02/05/2023] Open
Abstract
Background We examined the association between the number of resected lymph nodes and survival to determine the optimal lymphadenectomy for thoracic esophageal squamous cell carcinoma (ESCC) patients with negative lymph node. Methods We included 1,836 patients from Chinese three high-volumed hospitals with corresponding clinicopathological characters such as gender, age, tumor location, tumor grade and TNM stage of patients. The median follow-up of included patients was 45.7 months (range, 1.03-117.3 months). X-Tile plot was used to identify the lowest number of lymphadenectomy. The multivariate model's construction was in use of parameters with clinical significance for survival and a nomogram based on clinical variable with P<0.05 in Cox regression analysis. Both two models were validated using a cohort extracted from the Surveillance, Epidemiology, and End Results (SEER) 18 registries database between 1975 and 2016 (n=951). Results More lymphadenectomy numbers were significantly associated with better survival in patients both in training cohort [hazard ratio (HR) =0.980; 95% confidence interval (CI): 0.971-0.988; P<0.001] and validation cohort (HR =0.980; 95% CI: 0.968-0.991; P=0.001). Cut-off point analysis determined the lowest number of 9 for thoracic ESCC patients in N0 stage through training cohort (C-index: 0.623; sensitivity: 80.7%; 1 - specificity: 72.5%) when compared with 10 in validation cohort (C-index: 0.643; sensitivity: 78.2%; 1 - specificity: 63.0%). The cut-off points of 9 were examined in training cohort and validated in the divided cohort from validation cohort (all P<0.05). Meanwhile, nomograms for both cohorts were constructed and the calibration curves for both cohorts agreed well with the actual observations in terms of predicting 3- and 5-year survival, respectively. Conclusions Larger number for lymphadenectomy was associated with better survival in thoracic ESCC patients in N0 stage. Nine was what we got as the lowest number for lymphadenectomy in pN0 ESCC patients through this study, and our result should be confirmed further.
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Affiliation(s)
- Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Li-Yan Xu
- Department of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hong Yang
- Department of Thoracic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yin Li
- Department of Thoracic Surgery, Cancer Hospital Chinese Academy of Medical Sciences, Beijing, China
| | - Yi Li
- Department of Thoracic Surgery, Cancer Hospital Chinese Academy of Medical Sciences, Beijing, China
| | - Zhi-Yong Wu
- Department of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian-Hua Fu
- Department of Thoracic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiao-Dong Yao
- Department of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiu-E Xu
- Department of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian-Yi Wu
- Department of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
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10
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Mamdani H, Birdas T, Jalal SI. Role of surgery following neoadjuvant chemoradiation in patients with lymph node positive locally advanced esophageal adenocarcinoma: a national cancer database analysis. J Gastrointest Oncol 2021; 12:1944-1950. [PMID: 34790362 DOI: 10.21037/jgo-21-314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 09/29/2021] [Indexed: 01/03/2023] Open
Abstract
Background Concurrent chemoradiation (CRT) followed by surgery is a standard of care for locally advanced esophageal adenocarcinoma. It remains unclear if surgery following CRT offers any meaningful survival benefit compared to CRT alone in patients with clinical N3 disease who are at the highest risk of developing distant disease relapse. Methods We conducted analysis of the National Cancer Database (NCDB) to compare overall survival (OS) of patients with locally advanced esophageal adenocarcinoma (cTanyN1-3M0 based on AJCC 7th staging system) who underwent CRT with or without surgery and analyzed outcomes based on the cN stage. Results 7,520 patients were included in the analysis-74.7% had cN1 disease, 21.1% had cN2 disease, and 4.3% had cN3 disease. The median OS advantage offered by CRT followed by surgery was 22, 15.8, and 9.6 months compared to CRT alone in cN1, cN2, and cN3 patients, respectively. The 5-year OS estimates in the surgical group were 36.9%, 31.6% and 15.9% in cN1, cN2 and cN3 groups, respectively. Conclusions Surgery following CRT in patients with locally advanced esophageal adenocarcinoma leads to improvement in OS, with the largest benefit noted in patients with cN1 and cN2 disease. Surgery following CRT also confers meaningful long-term survival advantage for a subset of cN3 patients.
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Affiliation(s)
- Hirva Mamdani
- Department of Oncology, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA
| | - Thomas Birdas
- Department of Surgery, Thoracic Division, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, Indiana, USA
| | - Shadia I Jalal
- Department of Internal Medicine, Division of Hematology/Oncology, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, Indiana, USA
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11
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Liang L, Li C, Wang MD, Xing H, Diao YK, Jia HD, Lau WY, Pawlik TM, Zhang CW, Shen F, Huang DS, Yang T. The value of lymphadenectomy in surgical resection of perihilar cholangiocarcinoma: a systematic review and meta-analysis. Int J Clin Oncol 2021; 26:1575-1586. [PMID: 34160742 DOI: 10.1007/s10147-021-01967-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 06/03/2021] [Indexed: 12/25/2022]
Abstract
Surgical resection is the only potentially curative treatment for patients with resectable perihilar cholangiocarcinoma (PHC). There is still no consensus on the value of lymphadenectomy despite evidence indicating lymph node (LN) status is an important prognostic indicator for postoperative long-term survival. We sought to perform a meta-analysis to summarize the current evidence on the value of lymphadenectomy among patients undergoing surgery for PHC. The PubMed (OvidSP), Embase and Cochrane Library were systematically searched for studies published before July 2020 that reported on lymphadenectomy at the time of surgery for PHC after curative surgery. 7748 patients from 28 studies were included in the meta-analysis. No survival benefit was identified with increased number of LN resected (all P > 0.05). Meanwhile, overall LN status was an important prognostic factor. Patients with lymph node metastasis had a pooled estimate hazard ratio of death that was over two-fold higher than patients without lymph node metastasis (HR 2.07, 95% CI 1.65-2.59, P < 0.001). The examination of 5 LNs on histology was associated with better staging of lymph node status and stratification of patients into positive or negative LN groups. While the extent of LN dissection was not associated with a survival benefit, examination of more than 5 LNs better staged patients into positive or negative LN groups with a lower risk of nodal understaging.
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Affiliation(s)
- Lei Liang
- Department of Hepatobiliary, Pancreatic and Minimal Invasive Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, No. 158, Shangtang Road, Hangzhou, 310014, Zhejiang, China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou, China
| | - Chao Li
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China
| | - Ming-Da Wang
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China
| | - Hao Xing
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China
| | - Yong-Kang Diao
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China
| | - Hang-Dong Jia
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China
| | - Wan Yee Lau
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China.,Faculty of Medicine, Chinese University of Hong Kong, Prince of Wales Hospital, ShatinHong Kong SAR, N.T, China
| | - Timothy M Pawlik
- Department of Surgery, Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Cheng-Wu Zhang
- Department of Hepatobiliary, Pancreatic and Minimal Invasive Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, No. 158, Shangtang Road, Hangzhou, 310014, Zhejiang, China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou, China
| | - Feng Shen
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China
| | - Dong-Sheng Huang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou, China. .,School of Clinical Medicine, Hangzhou Medical College No, 481, Binwen Road, Hangzhou, 310014, Zhejiang, China.
| | - Tian Yang
- Department of Hepatobiliary, Pancreatic and Minimal Invasive Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, No. 158, Shangtang Road, Hangzhou, 310014, Zhejiang, China. .,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou, China. .,Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, the Second Military Medical University, Shanghai, China.
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12
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Xi K, Yu H. A Comparison of the Current N2 Classification and a Modified N2 Categorization in TNM Staging of Esophageal Cancer Patients. Front Oncol 2021; 10:561363. [PMID: 33552951 PMCID: PMC7856417 DOI: 10.3389/fonc.2020.561363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 11/24/2020] [Indexed: 12/09/2022] Open
Abstract
Objective To compare the effectiveness of the current N classification and a modified N2 categorization in TNM staging of esophageal cancer (EC) patients. Methodology A total of 2753 EC patients were enrolled in the study: 2283 EC patients from the Surveillance, Epidemiology, and End Results (SEER) database and 470 separate Chinese patients were used to verify the results of the SEER database. X-tile software was employed to determine the optimal cutoff points of the number of metastatic lymph nodes (LNs) in the N2 category. Univariate and multivariate Cox regression analyses were performed to identify the survival risk factors. Result Patients in the N2 category were divided into two groups based on the number of metastatic LNs. Patients with three and four metastatic LNs were categorized as N2a, while those with five and six metastatic LNs were categorized as N2b. The 3-year overall survival (OS) rate in the SEER database was 71.5%, 42.3%, 23.6%, 17.2%, and 10.7% for patients with N0, N1, N2a, N2b, and N3, respectively (P<0.001). Furthermore, a separate Chinese cohort was enrolled to validate the revised N2 category. Additionally, the 3-year OS rate was 71.5%, 42.3%, 23.6%, 17.2%, and 10.7% for patients with N0, N1, N2a, N2b, and N3, respectively (P<0.001). Conclusion The current N2 category should be further divided into two groups (N2a and N2b) to provide more accurate prognosis information that could further help in developing personalized therapeutic strategies.
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Affiliation(s)
- Kexing Xi
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hui Yu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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13
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Kitamura Y, Oshikiri T, Takiguchi G, Urakawa N, Hasegawa H, Yamamoto M, Kanaji S, Yamashita K, Matsuda T, Fujino Y, Tominaga M, Nakamura T, Suzuki S, Kakeji Y. Impact of Lymph Node Ratio on Survival Outcome in Esophageal Squamous Cell Carcinoma After Minimally Invasive Esophagectomy. Ann Surg Oncol 2021; 28:4519-4528. [PMID: 33393049 DOI: 10.1245/s10434-020-09451-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/11/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Esophageal squamous cell cancer (ESCC) is one of the deadliest cancers in the world. Esophagectomy remains the principal treatment, and minimally invasive esophagectomy (MIE) has been performed worldwide. This study aimed to clarify whether the lymph node ratio (LNR), defined as the ratio of metastatic lymph nodes (LNs) to examined, is a prognostic factor for ESCC after MIE. METHODS This study included 327 MIEs with the patient in the prone position at two institutions from 2010 to 2015. Cox proportional hazards regression analyses using clinicopathologic characteristics and the LNR were performed for the pN1 patients and the whole cohort. RESULTS In the multivariate analysis for all stages, independent prognostic factors were depth of tumor invasion (P < 0.0001), LNR (P = 0.014), operative time (P = 0.003), and pneumonia (P = 0.012). In the analysis of the pN1 subgroup, the optimum LNR cutoff level for overall survival (OS) was 9 based on receiver operation characteristic analysis. The LNR was significantly associated with depth of tumor invasion (P = 0.004) and number of metastatic LNs (P < 0.0001). The OS curve for the group with an LNR of 9 or higher was significantly worse than for the group with an LNR lower than 9 (P < 0.001). Multivariate analyses demonstrated that the LNR is a unique independent prognostic factor for the pN1 subgroup (hazard ratio, 6.811; 95% confidence interval, 2.009-23.087; P = 0.002). CONCLUSIONS The LNR is an independent prognostic factor in ESCC after MIE. Especially for patients with pN1 status, the LNR is more useful than the number of metastatic LNs for predicting survival outcome.
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Affiliation(s)
- Yu Kitamura
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Taro Oshikiri
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan.
| | - Gosuke Takiguchi
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Naoki Urakawa
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Hiroshi Hasegawa
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Masashi Yamamoto
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Shingo Kanaji
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Kimihiro Yamashita
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Takeru Matsuda
- Division of Minimally Invasive Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Yasuhiro Fujino
- Department of Gastroenterological Surgery, Hyogo Cancer Center, Akashi, Hyogo, Japan
| | - Masahiro Tominaga
- Department of Gastroenterological Surgery, Hyogo Cancer Center, Akashi, Hyogo, Japan
| | - Tetsu Nakamura
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Satoshi Suzuki
- Department of Social Community Medicine and Health Science, Division of Community Medicine and Medical Network, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Yoshihiro Kakeji
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
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14
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Zheng YZ, Li XQ, Wang JY, Yang H, Wen J, Zhai WY, Yuan LX, Fu SS, Liao HY, Fu JH. Impact of Examined Lymph Node Count for Esophageal Squamous Cell Carcinoma in Patients who Underwent Right Transthoracic Esophagectomy. Ann Surg Oncol 2020; 28:3025-3033. [PMID: 33073346 DOI: 10.1245/s10434-020-09217-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 09/12/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND The impact of the number of examined lymph nodes (ELNs) on stage correction and prognostication in patients with esophageal squamous cell carcinoma (ESCC) who underwent right transthoracic esophagectomy is still unclear. METHODS Patients with ESCC who underwent right transthoracic esophagectomy at Sun Yat-sen University Cancer Center between January 1997 and December 2013 were retrospectively enrolled. The Cox proportional hazards regression model was used to determine the effect of ELN count on overall survival. The impact of ELN count on stage correction was evaluated using the hypergeometric distribution and Bayes theorem and β-binomial distribution estimation, respectively. The threshold of ELNs was determined using the LOWESS smoother and piecewise linear regression. RESULTS Among the 875 included patients, greater ELNs were associated with a higher rate of nodal metastasis. Significant association between staging bias and the number of ELNs is only observed through the Bayes method. The ELN count did not impact 90-day mortality but significantly impacted long-term survival (adjusted hazard ratio [aHR] 0.986), especially in those patients with node-negative disease (aHR 0.972). In patients with node-negative disease, cut-point analysis showed a threshold ELN count of 21. CONCLUSIONS A greater number of ELNs is associated with more accurate node staging and better long-term survival in resected ESCC patients. We recommended harvesting at least 21 LNs to acquire accurate staging and long-term survival information for patients with declared node-negative disease using the right thoracic approach.
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Affiliation(s)
- Yu-Zhen Zheng
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation, Sun Yat-sen University Cancer Center, No.651, Dongfeng Road East, Guangzhou, 510060, Guangdong, China.,Department of Thoracic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Qiang Li
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jun-Ye Wang
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation, Sun Yat-sen University Cancer Center, No.651, Dongfeng Road East, Guangzhou, 510060, Guangdong, China
| | - Hong Yang
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation, Sun Yat-sen University Cancer Center, No.651, Dongfeng Road East, Guangzhou, 510060, Guangdong, China
| | - Jing Wen
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation, Sun Yat-sen University Cancer Center, No.651, Dongfeng Road East, Guangzhou, 510060, Guangdong, China
| | - Wen-Yu Zhai
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation, Sun Yat-sen University Cancer Center, No.651, Dongfeng Road East, Guangzhou, 510060, Guangdong, China
| | - Lian-Xiong Yuan
- Office of Research Service, Third Affiliation Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shen-Shen Fu
- Department of Ultrasonography, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hong-Ying Liao
- Department of Thoracic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Jian-Hua Fu
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation, Sun Yat-sen University Cancer Center, No.651, Dongfeng Road East, Guangzhou, 510060, Guangdong, China.
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15
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Zheng YZ, Li XQ, Wang JY, Yang H, Wen J, Zhai WY, Yuan LX, Fu SS, Liao HY, Fu JH. Impact of examined lymph node count for oesophageal squamous cell carcinoma in patients who underwent left transthoracic oesophagectomy. Eur J Surg Oncol 2020; 46:1956-1962. [PMID: 32439262 DOI: 10.1016/j.ejso.2020.04.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/22/2020] [Accepted: 04/25/2020] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The impact of the number of examined lymph nodes (ELNs) on stage correction and prognostication in patients with oesophageal squamous cell carcinoma (ESCC) who underwent left transthoracic oesophagectomy is still unclear. METHODS Patients with ESCC who underwent left transthoracic oesophagectomy at Sun Yat-sen University Cancer Center between January 1997 and December 2013 were retrospectively enrolled. The Cox proportional hazards regression model was used to determine the effect of ELN count on overall survival (OS). The association between ELN count and nodal status was investigated through scatter plot and binary logistic regression analyses. The impact of ELN count on stage correction was evaluated using the hypergeometric distribution and Bayes theorem. The threshold of ELNs was determined using the LOWESS smoother and piecewise linear regression. RESULTS Among the 1826 included patients, greater ELNs were associated with a higher rate of nodal metastasis (adjusted OR = 1.018). When the ELN count increased, the omission rate of positive lymph nodes (LNs) decreased. The ELN count did not impact 90-day mortality but significantly impacted long-term survival (adjusted HR = 0.983), especially in those with node-negative disease (adjust HR = 0.972). In patients with node-negative disease, cut point analysis showed a threshold ELN count of 18. CONCLUSIONS A greater number of ELNs is associated with more accurate node staging and better long-term survival in resected ESCC patients. We recommended harvesting at least 18 LNs to acquire accurate staging and long-term survival information for patients with declared node-negative disease in the left thoracic approach.
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Affiliation(s)
- Yu-Zhen Zheng
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China; Department of Thoracic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Qiang Li
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jun-Ye Wang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Hong Yang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Jing Wen
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Wen-Yu Zhai
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Lian-Xiong Yuan
- Office of Research Service, Third Affiliation Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shen-Shen Fu
- Department of Ultrasonography, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Hong-Ying Liao
- Department of Thoracic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Jian-Hua Fu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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16
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Lin Z, Chen W, Chen Y, Peng X, Yan S, He F, Fu R, Jiang Y, Hu Z. Achieving adequate lymph node dissection in treating esophageal squamous cell carcinomas by radical lymphadenectomy: Beyond the scope of numbers of harvested lymph nodes. Oncol Lett 2019; 18:1617-1630. [PMID: 31423229 PMCID: PMC6607061 DOI: 10.3892/ol.2019.10465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 04/15/2019] [Indexed: 12/26/2022] Open
Abstract
Previous studies have recommended harvesting a large number of lymph nodes (LNs) to improve the survival of patients with esophageal squamous cell carcinoma (ESCC). These studies or clinical guidelines focus on the total harvested LNs during lymphadenectomy; however, the extent of LN dissection (LND) required in patients with ESCCs remains controversial. The present study proposed a novel individualized adequate LND (ALND) strategy to compliment current guidelines to improve individualized therapeutic efficacy. For N0 cases, ALND was defined as an LN harvest of >55% of the LNs from nodal zones adjacent to the tumor location; and for N+ cases, ALND was defined as 8, 8, 8, 8 or 16 LNs dissected from the involved cervical, upper, middle, lower and celiac zones, respectively. Retrospective analysis of the ESCC cohort revealed that the ALND was associated with improved patient survival [hazard ratio (HR)=0.45 and 95% CI=0.30–0.66)]. Stratified analyses revealed that the protective role of ALND was prominent, with the exception of higher pN+ staged (pN2-3) cases (HR=0.52, 95% CI=0.23–1.18). Furthermore, ALND was associated with improved survival in local diseases (T1-3/N0-1; HR=0.50, 95% CI=0.30–0.84) and locally advanced diseases (T4/Nany or T1-3/N2-3; HR=0.32, 95% CI=0.15–0.68). These findings suggested that the proposed ALND strategy may effectively improve the survival of patients with ESCC.
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Affiliation(s)
- Zheng Lin
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Weilin Chen
- Department of Radiation Oncology, Affiliated Zhangzhou Hospital of Fujian Medical University, Zhangzhou, Fujian 363000, P.R. China
| | - Yuanmei Chen
- Department of Thoracic Surgery, Fujian Provincial Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Xiane Peng
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Siyou Yan
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Fei He
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Rong Fu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Yixian Jiang
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Zhijian Hu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
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17
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Xia W, Liu S, Mao Q, Chen B, Ma W, Dong G, Xu L, Jiang F. Effect of lymph node examined count on accurate staging and survival of resected esophageal cancer. Thorac Cancer 2019; 10:1149-1157. [PMID: 30957414 PMCID: PMC6501022 DOI: 10.1111/1759-7714.13056] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/11/2019] [Accepted: 03/13/2019] [Indexed: 12/17/2022] Open
Abstract
Background We examined the association between numbers of lymph nodes examined (LNEs) and accurate staging and survival to determine the optimal LNE count during esophagectomy using data from the Surveillance, Epidemiology, and End Results (SEER) cancer registry and the Department of Thoracic Surgery of a single institution (SI). Methods A total of 7356 EC patients met our inclusion criteria from the SEER database and 1275 patients from SI. We applied multivariate models to investigate the relationship between the LNE count and LN metastasis and cancer‐specific survival (CSS). Odds ratios (ORs) and hazard ratios (HRs) generated by the multivariate models were fitted with Locally Weighted Scatterplot Smoothing, and the structural breakpoints were determined by the Chow test. Results Higher numbers of LNEs were linked to a higher proportion of LN metastasis and better CSS in both cohorts. Cut‐point analysis determined a threshold of LNEs of 12 for adenocarcinoma and 14 for esophageal squamous cell cancer (ESCC) considering accurate staging, and 15 for adenocarcinoma and 14 for ESCC considering OS. The cut‐points for CSS were examined in the SEER database and validated in the divided cohort from SI (all P < 0.05). Conclusion A greater number of LNEs are significantly associated with more accurate N staging and better survival in EC patients. We recommend 15 and 14 as the threshold LNE counts for adenocarcinoma and ESCC patients, respectively.
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Affiliation(s)
- Wenjie Xia
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China.,The Fourth Clinical College of Nanjing Medical University, Nanjing, China
| | - Suyao Liu
- The Fourth Clinical College of Nanjing Medical University, Nanjing, China.,Department of Hematology and Oncology, Geriatric Lung Cancer Research Laboratory, Jiangsu Province Geriatric Hospital, Nanjing, China
| | - Qixing Mao
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China.,The Fourth Clinical College of Nanjing Medical University, Nanjing, China
| | - Bing Chen
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China.,The Fourth Clinical College of Nanjing Medical University, Nanjing, China
| | - Weidong Ma
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China.,The Fourth Clinical College of Nanjing Medical University, Nanjing, China
| | - Gaochao Dong
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China
| | - Lin Xu
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China
| | - Feng Jiang
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.,Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Cancer Institute of Jiangsu Province, Nanjing, China
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Chen D, Wang W, Chen Y, Hu J, Yang M, Mo J, Wen Z. Recurrence and prognostic model for identifying patients at risk for esophageal cancer after surgery. Cancer Manag Res 2018; 10:6109-6120. [PMID: 30538559 PMCID: PMC6252785 DOI: 10.2147/cmar.s186194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective The aim of this study was to construct a risk model to assess overall survival (OS) and disease-free survival (DFS) in patients with esophageal cancer (EC) after surgery. Patients and methods A total of 872 consecutive EC patients who had undergone surgery between February 2009 and October 2012 were retrospectively analyzed. The cutoff for risk value (RV) was inferred by receiver operating characteristic curves and the Youden index. A log-rank test was used to compare the survival curves, and a Cox regression analysis was performed to clarify the significant prognostic factors. Results The area under the curve was 0.688 for OS and 0.645 for DFS. The survival rates were 69.4% (259/373) and 39.1% (195/499), and the rates of recurrence were 19.2% (70/364) and 27.6% (132/479), respectively, for RV<0.218 and RV≥0.218 (c2=78.83, P<0.001; c2=9.07, P=0.003; respectively). A multivariate Cox regression analysis identified cases suffering from higher overall mortalities with RV≥0.218 compared to RV<0.218 (HR=1.45; 95% CI, 1.21–2.02; P=0.015); similar results were also found for DFS (HR=1.38; 95% CI, 1.03–1.86; P=0.033). Kaplan–Meier survival curves showed that cases with RV<0.218 had better OS and DFS than cases with RV≥0.218 (log rank = 75.80, P<0.001; log rank = 24.78, P<0.001). Conclusion This model could be applied to an integrated assessment of recurrence and prognostic risk after the surgical treatment of EC.
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Affiliation(s)
- Dongni Chen
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Weidong Wang
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Youfang Chen
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Jia Hu
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Men Yang
- Department of Cardio-Thoracic Surgery, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518000, China
| | - Junxian Mo
- Department of Cardio-Thoracic Surgery, The Seventh Affiliated Hospital of Guangxi Medical University, Wuzhou, Guangxi 543000, China
| | - Zhesheng Wen
- Department of Thoracic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
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Yao J, Shen X, Li H, Xu J, Shao S, Huang JX, Lin M. LncRNA-ECM is overexpressed in esophageal squamous cell carcinoma and promotes tumor metastasis. Oncol Lett 2018; 16:3935-3942. [PMID: 30128011 DOI: 10.3892/ol.2018.9130] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 06/13/2018] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to investigate the expression of long non-coding(lnc) RNA-extracellular matrix (ECM) in esophageal squamous cell carcinoma (ESCC) and its effect on ESCC metastasis. Using reverse transcription-quantitative polymerase chain reaction (RT-qPCR), the expression of lncRNA-ECM in ESCC tissues was investigated and compared with that in corresponding adjacent tissues. In addition, the expression of lncRNA-ECM in the human ESCC cell lines TE-1, EC9706, KYSE150, Eca109 and KYSE30 was also detected and compared with that in the normal esophageal mucosal epithelial cell line HET-1A. The clinicopathological association between lncRNA-ECM and ESCC was assessed. Silencing and overexpression of lncRNA-ECM in ESCC TE-1 and Eca109 cells determined the correlation between lncRNA-ECM expression and ESCC invasion and metastasis. The possible target genes of lncRNA-ECM were predicted and verified by bioinformatics analysis and experimental results. The expression level of intercellular adhesion molecule 1 (ICAM1) was detected in ESCC tissues by RT-qPCR and the correlation between the expression of ICAM1 and lncRNA-ECM was analyzed. Changes in the expression of ICAM1 in ESCC TE-1 and Eca109 cell lines were evaluated after knocking down lncRNA-ECM and transfection of lncRNA-ECM overexpression plasmids. The expression level of lncRNA-ECM in the tissues of ESCC with lymph node metastasis were significantly increased compared with ESCC with no lymph metastasis (P<0.05). LncRNA-ECM silencing notably reduced the invasion and metastasis of TE-1 and Eca109 cells, while lncRNA-ECM overexpression promoted the invasion and metastasis of the two cell lines. The expression level of ICAMI was directly correlated with the expression of lncRNA-ECM, suggesting that ICAM1 may be the downstream target gene of lncRNA-ECM. LncRNA-ECM was revealed as being overexpressed in ESCC. LncRNA-ECM expression was positively correlated with metastasis and may affect the metastasis of ESCC through ICAMI regulation. These findings indicate that lncRNA-ECM may be promising as a novel biomarker for the diagnosis and prediction of prognosis for ESCC, and it may also serve as a novel therapeutic target for ESCC.
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Affiliation(s)
- Juan Yao
- Department of Oncology, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Xiaozhou Shen
- Department of Oncology, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Hongzhi Li
- Department of Oncology, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Jie Xu
- Department of Oncology, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Shanshan Shao
- Department of Oncology, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Jun-Xing Huang
- Department of Oncology, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Mei Lin
- Institute of Clinical Medicine, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, Jiangsu 225300, P.R. China
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Walker R, Wood T, LeSouder E, Cleghorn M, Maganti M, MacNeill A, Quereshy FA. Comparison of two novel staging systems with the TNM system in predicting stage III colon cancer survival. J Surg Oncol 2018; 117:1049-1057. [PMID: 29473957 DOI: 10.1002/jso.25009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/15/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND OBJECTIVES Adaptations of the TNM staging system that incorporate the Lymph Node Ratio (LNR) have been proposed for stage III colon cancer. This study compared the concordance of two novel staging systems and the TNM system with observed survival outcomes in stage III patients. METHODS A review of patients who underwent surgery for stage III colon cancer between January 2002 and April 2015 at a tertiary care centre was performed. The Kaplan-Meier method was used to estimate the 5-year overall (OS) and disease free survival (DFS) rates, and the concordance probability was calculated to evaluate the discriminatory power of the staging systems. RESULTS Two hundred and sixty-one patients were identified. For TNM stages IIIA, IIIB, and IIIC, 5-year OS was 83.4%, 67.6%, and 38.3%, respectively (P < 0.001). All three staging systems were independently predictive of OS and DFS (P < 0.001). However, the novel staging system by Sugimoto et al18 was the most favourable prognostic tool, with a concordance of 0.646 for DFS and 0.659 for OS. CONCLUSIONS The novel staging system by Sugimoto et al18 was superior to the TNM system. Incorporating LNR into staging models for node positive colon cancers may improve survival information available to patients and potentially aid treatment decisions.
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Affiliation(s)
- Richard Walker
- Division of General Surgery, University Health Network, Toronto, Ontario, Canada
| | - Trevor Wood
- Division of General Surgery, University Health Network, Toronto, Ontario, Canada
| | - Emily LeSouder
- Division of General Surgery, University Health Network, Toronto, Ontario, Canada
| | - Michelle Cleghorn
- Division of General Surgery, University Health Network, Toronto, Ontario, Canada
| | - Manjula Maganti
- Department of Biostatistics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Andrea MacNeill
- BC Cancer Agency and Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Fayez A Quereshy
- Division of General Surgery, University Health Network, Toronto, Ontario, Canada
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21
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Yu S, Zhang W, Ni W, Xiao Z, Wang X, Zhou Z, Feng Q, Chen D, Liang J, Fang D, Mao Y, Gao S, Li Y, He J. Nomogram and recursive partitioning analysis to predict overall survival in patients with stage IIB-III thoracic esophageal squamous cell carcinoma after esophagectomy. Oncotarget 2018; 7:55211-55221. [PMID: 27487146 PMCID: PMC5342412 DOI: 10.18632/oncotarget.10904] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/10/2016] [Indexed: 12/20/2022] Open
Abstract
We have developed statistical models for predicting survival in patients with stage IIB-III thoracic esophageal squamous cell carcinoma (ESCC) and assessing the efficacy of adjuvant treatment. From a retrospective review of 3,636 patients, we created a database of 1,004 patients with stage IIB-III thoracic ESCC who underwent esophagectomy with or without postoperative radiation. Using a multivariate Cox regression model, we assessed the prognostic impact of clinical and histological factors on overall survival (OS). Logistic analysis was performed to identify factors to include in a recursive partitioning analysis (RPA) to predict 5-year OS. The nomogram was evaluated internally based on the concordance index (C-index) and a calibration plot. The median survival time in the training dataset was 30.9 months, and the 5-year survival rate was 33.9%. T stage, differentiated grade, adjuvant treatment, tumor location, lymph node metastatic ratio (LNMR), and the presence of vascular carcinomatous thrombi were statistically significant predictors of 5-year OS. The C-index of the nomogram was 0.70 (95% CI 0.67-0.73). RPA resulted in a three-class stratification: class 1, LNMR ≤ 0.15 with adjuvant treatment; class 2, LNMR ≤ 0.15 without adjuvant treatment and LNMR > 0.15 with adjuvant treatment; and class 3, LNMR > 0.15 without adjuvant treatment. The three classes were statistically significant for OS (P < 0.001). Thus, the nomogram and RPA models predicted the prognosis of stage IIB-III ESCC patients and could be used in decision-making and clinical trials.
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Affiliation(s)
- Shufei Yu
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Wencheng Zhang
- Department of Radiation Oncology, Tianjing Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Tianjin 300000, China
| | - Wenjie Ni
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zefen Xiao
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Xin Wang
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zongmei Zhou
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Qinfu Feng
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Dongfu Chen
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Jun Liang
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Dekang Fang
- Department of Thoracic Surgery, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021, China
| | - Yousheng Mao
- Department of Thoracic Surgery, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021, China
| | - Shugeng Gao
- Department of Thoracic Surgery, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021, China
| | - Yexiong Li
- Department of Radiation Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Jie He
- Department of Thoracic Surgery, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021, China
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22
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Prognostic Significant or Not? The Positive Circumferential Resection Margin in Esophageal Cancer. Ann Surg 2017; 266:988-994. [DOI: 10.1097/sla.0000000000001995] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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The prognostic significance of celiac lymph node metastasis in patients with locally advanced esophageal squamous cell carcinoma receiving curative concurrent chemoradiotherapy. Oncotarget 2017; 8:96190-96202. [PMID: 29221198 PMCID: PMC5707092 DOI: 10.18632/oncotarget.21878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/23/2017] [Indexed: 12/23/2022] Open
Abstract
Background To evaluate the clinical outcomes of celiac lymph node (LN) metastasis in patients with locally advanced esophageal squamous cell carcinoma (ESCC) receiving curative concurrent chemoradiotherapy (CCRT). Materials and Methods A total of 375 stage III ESCC patients were identified, including 51 patients with celiac LN metastasis and 324 patients without celiac LN metastasis. Among these 324 patients without celiac LN metastasis, 51 were matched with the 51 patients with celiac LN metastasis using the propensity score matching method. Results Overall, the celiac LN metastasis group had worse progression-free survival (PFS) and overall survival (OS) than the non-celiac LN metastasis group and the matched non-celiac LN metastasis group. For the ESCC patients with celiac LN metastasis, lower third ESCC was significantly associated with superior PFS and OS. For patients with upper/middle third ESCC, the celiac LN metastasis group had worse PFS and OS than the non-celiac LN metastasis group and the matched non-celiac LN metastasis group. For patients with lower third ESCC, there were no significant differences in PFS and OS between these groups. Conclusions Our study suggests celiac LN metastasis is a poor prognostic factor for locally advanced ESCC patients receiving curative CCRT. Among these ESCC patients with celiac LN metastasis, tumor location is a strongly prognostic factor, indicating patients with lower third ESCC have better PFS and OS than those with upper/middle third ESCC. The 6th American Joint Committee on Cancer staging system seems more favorable than 7th edition in the definition of celiac LNs for those patients.
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Comparative Quantitative Lymph Node Assessment in Localized Esophageal Cancer Patients After R0 Resection With and Without Neoadjuvant Chemoradiation Therapy. J Gastrointest Surg 2017; 21:1377-1384. [PMID: 28664255 DOI: 10.1007/s11605-017-3478-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 06/13/2017] [Indexed: 01/31/2023]
Abstract
INTRODUCTION The effects of neoadjuvant chemoradiation therapy on lymph node retrieval during esophagectomy for patients with esophageal cancer are unclear. The aim of this study was to quantify lymph node retrieval after R0 esophagectomy and to assess its impact on overall survival in induction therapy patients. METHODS One hundred seventy-four consecutive patients underwent esophagectomy with or without induction therapy from 2008 to 2015 for esophageal cancer. Total lymph nodes, positive lymph nodes, and lymph node ratios were compared between two groups of patients: those treated with either upfront surgery or those treated with neoadjuvant chemoradiation therapy followed by surgery. Comparisons were made using Student's t test. Overall survival was obtained and compared using Kaplan Meier survival curves. RESULTS Total lymph node counts were less in the induction therapy group (p = 0.027), while positive lymph node counts and lymph node ratios did not differ between groups (p = 0.262 and p = 0.310, respectively). In the neoadjuvant chemoradiation followed by surgery group, overall survival was significantly shorter for patients who had any positive lymph nodes in the pathologic specimen (p = 0.0065). CONCLUSIONS Total lymph node counts were significantly lower in the induction therapy group, while positive lymph node counts and lymph node ratios did not differ from the upfront surgery group. Although overall survival was not different between groups, it was decreased within the induction therapy cohort among those who had any positive lymph nodes retrieved at surgery. This study confirms that unstratified gross lymph node counts do not substantially relate to prognosis in the heterogeneous population of locally advanced esophageal cancer patients who may or may not have had neoadjuvant chemoradiation.
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Zhao Y, Zhong S, Li Z, Zhu X, Wu F, Li Y. Pathologic lymph node ratio is a predictor of esophageal carcinoma patient survival: a literature-based pooled analysis. Oncotarget 2017; 8:62231-62239. [PMID: 28977940 PMCID: PMC5617500 DOI: 10.18632/oncotarget.19258] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/11/2017] [Indexed: 12/31/2022] Open
Abstract
The positive lymph node ratio (LNR) has been suggested as a predictor of survival in patients with esophageal carcinoma (EC). However, existed evidences did not completely agree with each other. We sought to examine whether LNR was associated with overall survival (OS). Electronic database was searched for eligible literatures. The primary outcome was the relationship between LNR and OS, which was presented as hazard ratio (HR) with 95% confidence intervals (CIs). All statistical analyses were performed using STATA 11.0 software. A total of 18 relevant studies which involved 7,664 cases were included. Patients with an LNR of 0.3 or greater had an increased risk of death compared to those with an LNR of less than 0.3(HR = 2.33; 95% CI 2.03-2.68; P<0.01). Similarly, patients with an LNR greater than 0.5 was also associated with a decreased OS(HR = 1.95; 95% CI 1.52-2.50; P<0.01). No publication bias was found. This meta-analysis confirmed that LNR was a significant predictor of survival in patients with EC and should be considered in prognostication.
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Affiliation(s)
- Yuming Zhao
- Department of Cardiothoracic Surgery, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China
| | - Shengyi Zhong
- Department of Cardiothoracic Surgery, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China
| | - Zhenhua Li
- Department of Cardiothoracic Surgery, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China
| | - Xiaofeng Zhu
- Department of Cardiothoracic Surgery, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China
| | - Feima Wu
- Department of Cardiothoracic Surgery, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China
| | - Yanxing Li
- Department of Cardiothoracic Surgery, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning 437100, China
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Fu X, Liu Q, Luo K, Wen J, Yang H, Hu Y, Wang X, Lin P, Fu J. Lymph node station ratio: Revised nodal category for resected esophageal squamous cell carcinoma patients. J Surg Oncol 2017; 116:939-946. [DOI: 10.1002/jso.24758] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 06/10/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Xiayu Fu
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Qianwen Liu
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Kongjia Luo
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Jing Wen
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Hong Yang
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Yi Hu
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Xinye Wang
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Peng Lin
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
| | - Jianhua Fu
- Department of Thoracic Oncology; Sun Yat-sen University Cancer Centre; Guangzhou China
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Collaborative Innovation Centre of Cancer Medicine; Guangzhou China
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Impact of Extent of Lymphadenectomy on Survival, Post Neoadjuvant Chemotherapy and Transthoracic Esophagectomy. Ann Surg 2017; 265:750-756. [DOI: 10.1097/sla.0000000000001737] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Shao Y, Geng Y, Gu W, Ning Z, Huang J, Pei H, Jiang J. Assessment of Lymph Node Ratio to Replace the pN Categories System of Classification of the TNM System in Esophageal Squamous Cell Carcinoma. J Thorac Oncol 2016; 11:1774-84. [PMID: 27393473 DOI: 10.1016/j.jtho.2016.06.019] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/24/2016] [Accepted: 06/09/2016] [Indexed: 01/16/2023]
Abstract
INTRODUCTION The seventh edition of the TNM staging system for esophageal cancer outlined by the American Joint Committee on Cancer (AJCC) defines the N classification on the basis of the number of metastatic lymph nodes. However, this classification is dependent on the actual number of examined lymph nodes. Here in this study, we have focused on revising this N classification system with the metastatic lymph nodes ratio (LNR) and also assessing whether this modification to the current AJCC staging system can better define the prognostic characteristics of esophageal squamous cell carcinoma (ESCC). METHODS We retrospectively reviewed 916 patients with ESCC who underwent curative resection. Prognostic performance of two staging systems was compared using the Akaike information criterion value and receiver operating characteristics curve. In addition, decision curve analysis evaluated the clinical practical usefulness of the prediction models by quantifying their net benefits. RESULTS The univariate and multivariate Cox regression analyses indicated that LNR was an independent risk factor for overall survival. The modified staging system based on LNR had better discriminatory ability, monotonicity, homogeneity, and stratification than the TNM staging system in determining the prognosis of patients with ESCC. However, the decision curves analysis suggested that the modified staging based on LNR has poor clinical practical value over the AJCC TNM staging system. CONCLUSIONS LNR can supplement the pN categorization system for more effective evaluation of prognosis. But the modified staging system based on LNR has a poor clinical practical value for patients with ESCC compared with the current TNM system and is not superior to AJCC pN staging for ESCC.
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Affiliation(s)
- Yingjie Shao
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China
| | - Yiting Geng
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China
| | - Wendong Gu
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China
| | - Zhonghua Ning
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China
| | - Jin Huang
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China
| | - Honglei Pei
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China
| | - Jingting Jiang
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, People's Republic of China.
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Cao J, Yuan P, Ma H, Ye P, Wang Y, Yuan X, Bao F, Lv W, Hu J. Log Odds of Positive Lymph Nodes Predicts Survival in Patients After Resection for Esophageal Cancer. Ann Thorac Surg 2016; 102:424-32. [PMID: 27180928 DOI: 10.1016/j.athoracsur.2016.03.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND The number of lymph node metastases (LNMs) and the positive lymph node ratio (LNR) have been shown to be significant independent prognostic factors in predicting overall survival in patients with esophageal cancer. Our aim was to evaluate whether a novel prognostic indicator-the log odds of positive lymph nodes (LODDS)-predicts survival in esophageal cancer. METHODS Patients who underwent esophagectomy for esophageal cancer between 1988 and 2007 were identified from the Surveillance, Epidemiology, and End Results (SEER) database of 18 registries, and a Chinese patient cohort was subjected to validation. The prognostic efficacy of LNM, LNR, and LODDS was compared. Prognostic performance was measured using Harrell's C-index statistic, Schemper's proportion of explained variation, and the Akaike information criterion (AIC). RESULTS A total of 4,123 patients in the SEER database and 134 patients in the Chinese cohort met our criteria in this study. LODDS gave a better prognostic performance than either LNM or LNR in both the SEER database and the Chinese cohort. Multivariate analyses showed significant values for LNM, LNR, and LODDS as prognostic factors (p < 0.001). However, only LODDS was a significant prognostic factor regardless of the number of lymph nodes retrieved (p = 0.677). Furthermore, after stratification of patients with no nodes involved or all nodes involved, the values of LODDS still distinguished the heterogeneity efficiently. CONCLUSIONS LODDS predicts survival more accurately than either LNM or LNR in patients undergoing resection for esophageal cancer, especially for patients with an insufficient number of lymph nodes retrieved.
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Affiliation(s)
- Jinlin Cao
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ping Yuan
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Honghai Ma
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Peng Ye
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yiqing Wang
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoshuai Yuan
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Feichao Bao
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wang Lv
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jian Hu
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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Kambakamba P, Linecker M, Slankamenac K, DeOliveira ML. Lymph node dissection in resectable perihilar cholangiocarcinoma: a systematic review. Am J Surg 2015. [PMID: 26212390 DOI: 10.1016/j.amjsurg.2015.05.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Perihilar cholangiocarcinoma is usually unresectable at the time of diagnosis. Only few patients are candidates for a potential curative treatment. For those patients, prognosis is strongly related to negative resection margin and lymph node status. Thus, a certain benchmark of lymph node count is necessary to secure relevant lymph node recovery and to avoid understaging. However, the required minimum number of retrieved lymph nodes remains unclear for perihilar cholangiocarcinoma. The 7th American Joint Committee on Cancer tumor, nodes, metastases edition increased the requirement for the histologic examination of lymph nodes in perihilar cholangiocarcinoma patients from 3 to 15. The applicability of such recommendation appears difficult and questionable. Therefore, the purpose of this systematic review is to evaluate the number of retrieved lymph nodes for staging of patients undergoing surgery for perihilar cholangiocarcinoma. METHODS The MEDLINE, EMBASE, and The Cochrane Library databases were systematically screened up to December 2014. All studies reporting the number of lymph node count in perihilar cholangiocarcinoma were included and assessed for eligibility. RESULTS A total of 725 abstracts were screened and 20 studies were included for analysis, comprising almost 4,000 patients. The cumulative median lymph node count was 7 (2 to 24). A median lymph node count greater than or equal to 15 was reported in 9% of perihilar cholangiocarcinoma patients and could only be achieved in extended lymphadenectomy. Subgroup analysis revealed a median lymph node count of 7 (range 7 to 9), which was associated with the detection of most lymph node positive patients and showed the lowest risk for understaging patients. Lymph node count greater than or equal to 15 did not increase detection rate of lymph node positive patients. CONCLUSIONS This systematic analysis suggests that lymph node count greater than or equal to 7 is adequate for prognostic staging, while lymph node count greater than or equal to 15 does not improve detection of patients with positive lymph nodes.
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Affiliation(s)
- Patryk Kambakamba
- Department of Surgery, Swiss HPB and Transplant Surgery, University Hospital Zurich, Raemistrasse 100, Zurich 8091, Switzerland
| | - Michael Linecker
- Department of Surgery, Swiss HPB and Transplant Surgery, University Hospital Zurich, Raemistrasse 100, Zurich 8091, Switzerland
| | - Ksenija Slankamenac
- Department of Surgery, Swiss HPB and Transplant Surgery, University Hospital Zurich, Raemistrasse 100, Zurich 8091, Switzerland
| | - Michelle L DeOliveira
- Department of Surgery, Swiss HPB and Transplant Surgery, University Hospital Zurich, Raemistrasse 100, Zurich 8091, Switzerland.
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Chen SB, Weng HR, Wang G, Zou XF, Liu DT, Chen YP, Zhang H. Lymph node ratio-based staging system for esophageal squamous cell carcinoma. World J Gastroenterol 2015; 21:7514-7521. [PMID: 26139998 PMCID: PMC4481447 DOI: 10.3748/wjg.v21.i24.7514] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 01/06/2015] [Accepted: 03/19/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze a modified staging system utilizing lymph node ratio (LNR) in patients with esophageal squamous cell carcinoma (ESCC).
METHODS: Clinical data of 2011 patients with ESCC who underwent surgical resection alone between January 1995 and June 2010 at the Cancer Hospital of Shantou University Medical College were reviewed. The LNR, or node ratio (Nr) was defined as the ratio of metastatic LNs ompared to the total number of resected LNs. Overall survival between groups was compared with the log-rank test. The cutoff point of LNR was established by grouping patients with 10% increment in Nr, and then combining the neighborhood survival curves using the log-rank test. A new TNrM staging system, was constructed by replacing the American Joint Committee on Cancer (AJCC) N categories with the Nr categories in the new TNM staging system. The time-dependent receiver operating characteristic curves were used to evaluate the predictive performance of the seventh edition AJCC staging system and the TNrM staging system.
RESULTS: The median number of resected LNs was 12 (range: 4-44), and 25% and 75% interquartile rangeswere8 and 16. Patients were classified into four Nr categories with distinctive survival differences (Nr0: LNR = 0; Nr1: 0% < LNR ≤ 10%; Nr2: 10% < LNR ≤ 20%; and Nr3: LNR > 20%). From N categories to Nr categories, 557 patients changed their LN stage. The median survival time (MST) for the four Nr categories (Nr0-Nr3) was 155.0 mo, 39.0 mo, 28.0 mo, and 19.0 mo, respectively, and the 5-year overall survival was 61.1%, 41.1%, 33.0%, and 22.9%, respectively (P < 0.001). Overall survival was significantly different for the AJCC N categories when patients were subgrouped into 15 or more vs fewer than 15 examined nodes, except for the N3 category (P = 0.292). However, overall survival was similar when the patients in all four Nr categories were subgrouped into 15 or more vs fewer than 15 nodes. Using the time-dependent receiver operating characteristic, we found that the Nr category and TNrM stage had higher accuracy in predicting survival than the AJCC N category and TNM stage.
CONCLUSION: A staging system based on LNR may have better prognostic stratification of patients with ESCC than the current TNM system, especially for those undergoing limited lymphadenectomy.
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Can lymph node ratio replace pn categories in the tumor-node-metastasis classification system for esophageal cancer? J Thorac Oncol 2015; 9:1214-21. [PMID: 25157776 DOI: 10.1097/jto.0000000000000216] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND We evaluated the prognostic value of lymph node ratio (LNR) in esophageal squamous cell carcinoma (ESCC) patients after tri-incisional esophagectomy by making comparisons with pN categories in the UICC/AJCC (International Union Against Cancer/American Joint Committee on Cancer) classification system (seventh edition). METHODS Seven hundred ESCC patients underwent tri-incisional esophagectomy at our center (1988-2008) without neoadjuvant therapy. The adjusted X-tile cutoff values for LNR of 0 and 0.25 were compared with those in UICC/AJCC pN categories. RESULTS Univariate and multivariate analyses identified LNR as a significant prognostic factor regardless of the number of retrieved LNs. Spearman's correlation analysis showed close linear correlations between the number of examined and metastatic LNs (r = 0.205, p < 0.001), but not between the number of examined LNs and LNR (r = 0.058, p = 0.123). Significant prognostic differences were seen among LNR categories in all pT categories (p < 0.05), but not in pN categories stratified by tumor status (except T3: p < 0.001). Significant prognostic difference was seen among LNR categories in all pN categories (p < 0.05), but not between pN categories in all LNR categories (p > 0.05). Significant differences in 5-year cancer-specific survival rates were found among retrieved-node groups in the same pN category (except N2+3: p = 0.733), but not within the same LNR category (except N0: p < 0.001). CONCLUSIONS LNR is an independent prognostic factor after tri-incisional esophagectomy, regardless of the number of retrieved LNs. In ESCC, LNR might reduce stage migration, have more potential for predicting patient outcomes, and compensate for deficiencies in UICC/AJCC pN categories.
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Locally advanced esophageal carcinoma: is there still a role of surgery alone without neoadjuvant treatment? J Gastrointest Surg 2015; 19:587-93. [PMID: 25652343 DOI: 10.1007/s11605-015-2762-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 01/23/2015] [Indexed: 01/31/2023]
Abstract
OBJECTIVE The aim of this study is to evaluate the impact of upfront surgery without neoadjuvant pretreatment on survival in patients with clinically staged locally advanced esophageal carcinoma before the new era of neoadjuvant therapy regimes. MATERIAL AND METHODS This is a retrospective analysis of prospectively collected data of patients with clinically advanced esophageal cancer (cT3) and without neoadjuvant treatment who underwent transthoracic esophagectomy (TTE) in curative intent between 1992 and 2009. Locally advanced esophageal cancer was defined based on presurgical computertomography, endoscopy, and endosonography findings as a tumor infiltrating the paraesophageal tissue or the adjacent structures, with or without lymph node affection. RESULTS Histological subtypes included 131 squamous cell carcinomas (SCC) and 81 adenocarcinomas (AC). Complete resection (R0) was achieved in 84.0% of all 212 patients. Thirty-day mortality rate was 7.1%. Final pathology revealed 50 patients (23.5%) with pT1 or pT2 carcinomas which were preoperatively overstaged. Median overall survival following TTE for SCC was 13.7 months (95% CI; 10.1-17.2 months) and 24.8 months (95% CI; 14.5-35.1 months) for AC, respectively (p = 0.007). The 5-year survival rates were 14% for SCC and 26% for AC, respectively. In median, 27 lymph nodes were resected. On multivariable analyses, histological type, tumor localization, tumor grading, and resection status remained independent factors influencing overall survival. CONCLUSION Our results in the treatment of patients with locally advanced esophageal carcinoma undergoing primary TTE are comparable to the results reported for patients undergoing neoadjuvant chemo-radio-therapy followed by surgery in the pre-CROSS-study era. Histological subtypes show different survival rates and should therefore be separately examined in future trials.
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van der Schaaf M, Johar A, Wijnhoven B, Lagergren P, Lagergren J. Extent of lymph node removal during esophageal cancer surgery and survival. J Natl Cancer Inst 2015; 107:djv043. [PMID: 25748792 DOI: 10.1093/jnci/djv043] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND It is unclear how the extent of surgical lymph node clearance influences prognosis after surgery for esophageal cancer. METHODS This nationwide, population-based cohort study included 1044 esophageal cancer patients who had undergone esophagectomy between 1987 and 2010 in Sweden, with follow-up until 2012. The independent role of lymph node removal in relation to survival was analyzed using Cox proportional hazards regression, providing hazard ratios (HRs) with 95% confidence intervals (CIs), adjusted for age, sex, comorbidity, tumor (T) stage, neo-adjuvant treatment, surgeon volume, and calendar period. Statistical tests were two-sided, except tests for trend. RESULTS Analyzed as a linear variable, a higher number of lymph nodes removed did not influence the overall five-year mortality (adjusted HR = 1.00, 95% CI = 0.99 to 1.01). Patients in the third (7-15 nodes) and fourth (16-114 nodes) quartiles of removed nodes did not demonstrate any decreased overall five-year mortality compared with those in the lowest two quartiles (<7 nodes) (HR = 1.13, 95% CI = 0.95 to 1.35 and HR = 1.17, 95% CI = 0.94 to 1.46, respectively). In early T stages (Tis-T1) the hazard ratios indicated a worse survival with more lymphadenectomy using the median as cutoff (HR = 1.53, 95% CI = 1.13 to 2.06). Increased lymph node removal did not decrease mortality in any specific T stage. A greater number of metastatic nodes and a higher positive-to-negative node ratio were associated with strongly increased mortality. All results were similar when disease-specific mortality was analyzed. CONCLUSION This population-based study indicates that more extensive lymph node clearance during surgery for esophageal cancer may not improve survival. These results challenge current clinical guidelines, and further research is needed to change clinical practice.
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Affiliation(s)
- Maartje van der Schaaf
- Department of Molecular medicine and Surgery, Karolinska Institutet, Stockholm, Sweden (MvdS, AJ, PL, JL); Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands (BW); Division of Cancer Studies, King's College London, London, UK (JL)
| | - Asif Johar
- Department of Molecular medicine and Surgery, Karolinska Institutet, Stockholm, Sweden (MvdS, AJ, PL, JL); Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands (BW); Division of Cancer Studies, King's College London, London, UK (JL)
| | - Bas Wijnhoven
- Department of Molecular medicine and Surgery, Karolinska Institutet, Stockholm, Sweden (MvdS, AJ, PL, JL); Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands (BW); Division of Cancer Studies, King's College London, London, UK (JL)
| | - Pernilla Lagergren
- Department of Molecular medicine and Surgery, Karolinska Institutet, Stockholm, Sweden (MvdS, AJ, PL, JL); Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands (BW); Division of Cancer Studies, King's College London, London, UK (JL)
| | - Jesper Lagergren
- Department of Molecular medicine and Surgery, Karolinska Institutet, Stockholm, Sweden (MvdS, AJ, PL, JL); Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands (BW); Division of Cancer Studies, King's College London, London, UK (JL).
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Wang J, Wu N, Zheng QF, Yan S, Lv C, Li SL, Yang Y. Evaluation of the 7 th edition of the TNM classification in patients with resected esophageal squamous cell carcinoma. World J Gastroenterol 2014; 20:18397-18403. [PMID: 25561808 PMCID: PMC4277978 DOI: 10.3748/wjg.v20.i48.18397] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 10/19/2014] [Accepted: 11/11/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the prognostic factors and tumor stages of the 7th edition TNM classification for esophageal cancer.
METHODS: In total, 1033 patients with esophageal squamous cell carcinoma (ESCC) who underwent surgical resection with or without (neo)adjuvant therapy between January 2003 and June 2012 at the Thoracic Surgery Department II of the Beijing Cancer Hospital, Beijing, China were included in this study. The following eligibility criteria were applied: (1) squamous cell carcinoma of the esophagus or gastroesophageal junction identified by histopathological examination; (2) treatment with esophagectomy plus lymphadenectomy with curative intent; and (3) complete pathologic reports and follow-up data. Patients who underwent non-curative (R1) resection and patients who died in hospital were excluded. Patients who received (neo)adjuvant therapy were also included in this analysis. All patients were restaged using the 7th edition of the Union for International Cancer Control and the American Joint Committee on Cancer TNM staging systems. Univariate and multivariate analyses were performed to identify the prognostic factors for survival. Survival curves were plotted using the Kaplan-Meier method, and the log-rank test was used to evaluate differences between the subgroups.
RESULTS: Of the 1033 patients, 273 patients received (neo)adjuvant therapy, and 760 patients were treated with surgery alone. The median follow-up time was 51.6 mo (range: 5-112 mo) and the overall 5-year survival rate was 36.4%. Gender, “pT” and “pN” descriptors, (neo)adjuvant therapy, and the 7th edition TNM stage grouping were independent prognostic factors in the univariate and multivariate analyses. However, neither histologic grade nor cancer location were independent prognostic factors in the univariate and multivariate analyses. The 5-year stage-based survival rates were as follows: IA, 84.9%; IB, 70.9%; IIA, 56.2%; IIB, 43.3%; IIIA, 37.9%; IIIB, 23.3%; IIIC,12.9% and IV, 3.4%. There were significant differences between each adjacent staging classification. Moreover, there were significant differences between each adjacent pN and pM subgroup. According to the pT descriptor, there were significant differences between each adjacent subgroup except between pT3 and pT4 (P = 0.405). However, there was no significant difference between each adjacent histologic grade subgroup and between each adjacent cancer location subgroup.
CONCLUSION: The 7th edition is considered to be valid for patients with resected ESCC. However, the histologic grade and cancer location were not prognostic factors for ESCC.
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Liu ZQ, Xiao ZW, Luo GP, Liu L, Liu C, Xu J, Long J, Ni QX, Yu XJ. Effect of the number of positive lymph nodes and lymph node ratio on prognosis of patients after resection of pancreatic adenocarcinoma. Hepatobiliary Pancreat Dis Int 2014; 13:634-41. [PMID: 25475867 DOI: 10.1016/s1499-3872(14)60264-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The prognostic factors related to lymph node involvement [lymph node status, the number of positive lymph nodes, lymph node ratio (LNR)] and the number of nodes evaluated in patients with pancreatic adenocarcinoma after pancreatectomy are poorly defined. METHODS A total of 167 patients who had undergone resection of pancreatic adenocarcinoma from February 2010 to August 2011 were included in this study. Histological examination was performed to evaluate the tumor differentiation and lymph node involvement. Univariate and multivariate analyses were made to determine the relationship between the variables related to nodal involvement and the number of nodes and survival. RESULTS The median number of total nodes examined was 10 (range 0-44) for the entire cohort. The median number of total nodes examined in node-negative (pN0) patients was similar to that in node-positive (pN1) patients. Patients with pN1 diseases had significantly worse survival than those with pN0 ones (P=0.000). Patients with three or more positive nodes had a poorer prognosis compared with those with the negative nodes (P=0.000). The prognosis of the patients with negative nodes was similar to that of those with one to two positive nodes (P=0.114). The median survival of patients with an LNR ≥0.4 was shorter than that of patients with an LNR <0.4 in the pN1 cohort (P=0.014). No significance was found between the number of total nodes examined and the prognosis, regardless of the cutoff of 10 or 12 and in the entire cohort or the pN0 and pN1 groups. Based on the multivariate analysis of the entire cohort and the pN1 group, the nodal status, the number of positive nodes and the LNR were all associated with survival. CONCLUSIONS In addition to the nodal status, the number of positive nodes and the LNR can serve as comprehensive factors for the evaluation of nodal involvement. This approach may be more effective for predicting the survival of patients with pancreatic adenocarcinoma after pancreatectomy.
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Affiliation(s)
- Zu-Qiang Liu
- Department of Pancreatic and Hepatobiliary Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University; Pancreatic Cancer Institute, Fudan University, Shanghai 200032, China.
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Ravishankaran P, Krishnamurthy A. Prognostic value of metastatic lymph nodal ratio in squamous cell carcinoma of esophagus: A three-step extrapolative study. South Asian J Cancer 2014; 3:213-6. [PMID: 25422807 PMCID: PMC4236699 DOI: 10.4103/2278-330x.142976] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background: Transthoracic esophagectomy (TTE) and transhiatal esophagectomy (THE) are the two most common surgical approaches for carcinoma esophagus. Several studies have shown lymph nodal involvement to be one of the most important prognostic factors in carcinoma esophagus. Aims: The primary objective of this study was to explore the effectiveness of the ratio of positive lymph nodes to excised lymph nodes, namely the metastatic lymph nodal ratio (MLNR) as a prognostic factor in the survival of patients with carcinoma esophagus. Settings and Design: Retrospective analysis of a prospective database. Materials and Methods: A review of the operated esophageal cancer patients treated at a tertiary cancer center in South India between January 2002 and December 2006. Statistical analysis was done with the help of SPSS version 17 software (SPSS Inc., Chicago, IL). Proportions were compared using the Chi-square test. Survival data was generated using life table methods. Differences in survival estimates were compared using log-rank test. Results and Conclusions: Our study emphatically showed that the survival outcomes of patients with squamous cell carcinoma of the esophagus can be discriminated based on the MLNR groups, and it can be a reliable prognostic indicator. The overall survival for patients undergoing TTE, or THE for the entire cohort of patients was however not statistically significant. Whether a more aggressive TTE is a better esophageal cancer operation or whether MLNR is the factor that can significantly impact survival regardless of the technique is an issue that would require further investigation.
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Affiliation(s)
- Praveen Ravishankaran
- Departments of Surgical Oncology, Cancer Institute, Adyar, Chennai, Tamil Nadu, India
| | - Arvind Krishnamurthy
- Departments of Surgical Oncology, Cancer Institute, Adyar, Chennai, Tamil Nadu, India
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Ema A, Waraya M, Yamashita K, Kokubo K, Kobayashi H, Hoshi K, Shinkai Y, Kawamata H, Nakamura K, Nishimiya H, Katada N, Watanabe M. Identification of EGFR expression status association with metastatic lymph node density (ND) by expression microarray analysis of advanced gastric cancer. Cancer Med 2014; 4:90-100. [PMID: 25154973 PMCID: PMC4312122 DOI: 10.1002/cam4.311] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 06/12/2014] [Accepted: 06/15/2014] [Indexed: 01/02/2023] Open
Abstract
Metastatic lymph node density (ND) has been reproducibly proven to be a prognostic factor in gastric cancer. The molecular mechanisms that underlie this aggressiveness are underexplored. Here, we aimed to identify molecules associated with this unique phenotype. Tumor specimens from patients with stage III gastric cancer with high or low ND (n = 4 for both) were compared at the mRNA level using Affymetrix microarray (harboring 54,675 genes). The expression data were prioritized, and genes that correlated with ND were selected. Ultimately, the EGFR was validated as such a candidate molecule in patients with primary advanced gastric cancer who underwent standard treatment (n = 167). Expression data of the microarray were prioritized based on gene expression ratio and frequency of gene expression. The first priority genes to be selected were genes that are known to be amplified in cancer, which included NKX2.1, CHST9, CTNND2, SLC25A27, FGFR2, EGFR, and PTGER1. Of these genes, the EGFR gene was of particular interest. EGFR expression in primary gastric cancer was examined using immunohistochemistry (IHC). The Student's t-test elucidated a significant difference in EGFR expression between IHC 2+/3+ and IHC 1+ according to ND (P = 0.0035). The Chi-square test also indicated a significant difference between high and low levels of EGFR immunohistochemical staining (IHC2+/3+ and IHC1+, respectively) and ND status (P = 0.0023). According to the least squares method, as ND increased, the risk that EGFR staining levels changed from IHC 1+ to IHC 2+ also increased. In this study, we determined that high EGFR expression may underlie the aggressive mechanism of advanced gastric cancer with high ND.
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Affiliation(s)
- Akira Ema
- Department of Surgery, Kitasato University School of Medicine, Kitasato 1-15-1, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan
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Zhu Z, Chen H, Yu W, Fu X, Xiang J, Li H, Zhang Y, Sun M, Wei Q, Zhao W, Zhao K. Number of negative lymph nodes is associated with survival in thoracic esophageal squamous cell carcinoma patients undergoing three-field lymphadenectomy. Ann Surg Oncol 2014; 21:2857-63. [PMID: 24740827 DOI: 10.1245/s10434-014-3665-y] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND The number of negative lymph nodes (NLNs) can be used for predicting clinical outcomes for patients with esophageal carcinoma as it is believed to reflect the extent of lymphadenectomy. However, when patients are treated with the same surgical procedure, its prognostic value is not clear. METHODS We reviewed the records of 332 patients with thoracic esophageal squamous cell carcinoma (ESCC) who underwent three-field lymphadenectomy (3FLND) and had at least 15 lymph nodes removed. We used Kaplan-Meier estimates to compute overall survival (OS), the log-rank tests to assess the equality of survival rates, and Cox regression analyses to evaluate the association between survival and NLN count after adjusting for potential confounders. RESULTS At a median follow-up interval of 36 months, the median OS was 47 months and the 5-year survival rate was 47.0 %. NLN count was independently associated with OS, and higher numbers of NLNs were linked to better OS (hazard ratio [HR] 0.970; 95 % confidence interval [CI] 0.955-0.986); the effect did not change after we stratified patients into node-negative (HR 0.966; 95 % CI 0.933-1.000) and node-positive (HR 0.973; 95 % CI 0.955-0.991) groups. CONCLUSION The NLN count is an important independent prognostic factor for patients with thoracic ESCC treated with 3FLND.
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Affiliation(s)
- Zhengfei Zhu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
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Dusch N, Weiss C, Ströbel P, Kienle P, Post S, Niedergethmann M. Factors predicting long-term survival following pancreatic resection for ductal adenocarcinoma of the pancreas: 40 years of experience. J Gastrointest Surg 2014; 18:674-81. [PMID: 24241965 DOI: 10.1007/s11605-013-2408-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 10/29/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Long-term survival after resection for pancreas carcinoma has rarely been reported. Factors influencing long-term survival are still under debate. The aim of this study was to define predictors for long-term survival. METHODS Between 1972 and 2004, a total of 415 patients underwent resection. Data were collected in a prospective data base. Data of 360 patients were available for further analysis in 2011. All specimens of long-term survivors were histologically reviewed. RESULTS Long-term survivors (n = 69) had a median survival of 91 months. Pathological re-evaluation of all specimens re-confirmed the diagnosis. Predictive factors for long-term survival in univariate analysis were no preoperative biliary stent, low CA 19-9 level, lack of blood transfusion, R0 resection, tumour diameter, and -grading, absence of lymph node or distant metastases, lymphangiosis, and perineural infiltration. Adjuvant chemotherapy showed a significant influence on overall survival but not on long-term survival. In multivariate analysis, lymph node ratio and volume of blood transfusion were predictors of long-term survival. CONCLUSION Nearly 20% of patients with pancreas carcinoma who undergo surgical resection have a chance of long-term survival. Survival beyond 5 years is predicted by clinical and tumour-specific factors. Adjuvant chemotherapy might prolong overall survival but is, according to these results, unable to contribute to long-term survival. There is still a risk of recurrence after a 5- or even a 12-year mark. Survival beyond 5 or even 12 years, therefore, does not assure cure.
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Affiliation(s)
- Niloufar Dusch
- Department of Surgery, Faculty of Medicine Mannheim, University Medical Centre Mannheim, University of Heidelberg, 68167, Mannheim, Germany
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Kang MJ, Jang JY, Chang YR, Kwon W, Jung W, Kim SW. Revisiting the concept of lymph node metastases of pancreatic head cancer: number of metastatic lymph nodes and lymph node ratio according to N stage. Ann Surg Oncol 2014; 21:1545-51. [PMID: 24419758 DOI: 10.1245/s10434-013-3473-9] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Some suggest that metastatic lymph node ratio (LNR) may be prognostic of survival in patients with pancreatic cancer. However, this phenomenon was confused by inclusion of node-negative patients in the analysis. The present study was designed to evaluate the prognostic impact of metastatic LNR and the absolute number of metastatic LNs in patients resected for pancreatic cancer. METHODS Data were collected from 398 patients who underwent curative surgery for pancreatic head cancer at Seoul National University Hospital. Long-term survival was analyzed according to LNR and absolute number of metastatic LNs. RESULTS Of the patients, 227 (57.0 %) had LN metastasis. The mean numbers of total retrieved and metastatic LNs were 19.5 and 1.9, respectively, and the mean LNR was 0.11. Median overall survival (OS) of patients was significantly higher in N0 than in N1 patients after curative resection (25.4 vs. 14.8 months, p < 0.001). Median OS was significantly lower in patients with 1 than in those with 0 positive LNs (17.3 vs. 25.4 months, p = 0.001). Among N1 patients, those with 0 < LNR ≤ 0.2 had comparable prognosis than those with >0.2 LNR (median OS 17.2 vs. 12.8 months, p = 0.096), and the number of metastatic LNs did not correlate with median OS (p = 0.365). CONCLUSIONS The presence of a single positive metastatic LN was associated with significantly poorer OS in patients with pancreatic cancer. When LN metastasis was present, the number of metastatic LNs and LNR had limited prognostic relevance.
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Affiliation(s)
- Mee Joo Kang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Yam PC, Tong D, Law S. Comparisons of sixth and seventh edition of the American Joint Cancer Committee staging systems for esophageal cancer. Ann Surg Oncol 2013; 21:583-8. [PMID: 24197762 DOI: 10.1245/s10434-013-3335-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Indexed: 11/18/2022]
Abstract
BACKGROUND In the seventh edition of the AJCC TNM system for esophageal cancer, modifications have been made with regard to definition of nodal status; histological grade and tumor location are also added in overall staging. The aim of this study is to evaluate the prognostic value of this new system. PATIENTS AND METHODS From 1995 to 2009, 200 patients with squamous cell carcinoma who underwent esophagectomy with curative intent (R0 resection) without neoadjuvant or postoperative treatment were studied. RESULTS For nodal staging, survival difference was found between pN0 and pN + groups of the sixth edition. If nodal status was recoded according to the seventh edition, survival distinction was found between different groups except between pN1 (1-2 nodes) and pN2 (3-6 nodes) (p = 0.47). When pN1 and pN2 were pooled together (pN1+2), survival distinction between pN0 and pN1+2 (p = 0.003), and pN1+2 and pN3 (7 or more nodes) (p < 0.001) were identified. For overall staging, stage distributions were stage I = 17, stage II = 80, stage III = 89, and stage IV = 14 according to the sixth edition. The respective numbers were stage I = 20, stage II = 69, stage III = 111, using the seventh edition. Using the sixth edition, survival differences between stages were distinct except between stage III and stage IV (p = 0.38). In the seventh edition, survival differences were found among all stages: between stage I and II (p = 0.01) and between stage II and III (p < 0.001). On multivariate analysis, pT and pN were two independent prognostic factors for both editions. In the seventh edition, histological grade and tumor location were not statistically significant prognostic factors. CONCLUSIONS The new staging system provides better survival distinction between stages. pT and pN were independent prognostic factors whereas histological grade and tumor location were not. Nodal metastases may be better reassigned to three groups: pN0, pN1 (1-6), and pN2 (7 or more).
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Affiliation(s)
- Po-Chu Yam
- Department of Surgery, Kwong Wah Hospital, Hong Kong, Hong Kong
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Tan Z, Chen Y, Ma G, Meng Y, Fu J, Zhang L, Long H, Rong T, Lin P. Validation of the 7th edition American Joint Committee on cancer staging system for esophageal squamous cell carcinoma. Thorac Cancer 2013; 4:410-415. [PMID: 28920222 DOI: 10.1111/1759-7714.12039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 02/24/2013] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The purpose of this study is to investigate the ability of the 7th edition of the American Joint Committee on Cancer tumor-nodes-metastasis (AJCC/TNM) staging system to distinguish between patients at higher risk and to predict the overall survival in patients who underwent surgical resection for esophageal squamous cell carcinoma (ESCC). METHODS Between 1998 and 2008, 560 patients with ESCC underwent R0 tri-incisional esophagectomy at our center without neoadjuvant or adjuvant therapy. We performed univariate and multivariate analyses to identify prognostic factors for survival. RESULTS The five-year overall survival rate was 44.1%, with a median survival of 44 months. Gender, pT status, pN status, and the retrieved lymph nodes (LNs) category (<15 vs. ≥15) were found to be significant prognostic factors, whereas histology grade and tumor location were not significant prognostic factors in our analysis. When classified as all eight sub-stages, there were similar survival curves between stages IB and IIA (P = 0.799), and stages IIIC and IV (P = 0.635). Multivariate Cox proportional hazard regression analysis indicated that gender, pT category, pN category, and the retrieved LNs category (<15 vs. ≥15) were significantly associated with patient survival. CONCLUSION The 7th edition AJCC staging system proposed a new descriptor for "N" classification. Further stratification of pN status according to number of positive LNs in the 7th edition is valuable. However, we did not find tumor location and histology grade were significant prognostic factors. Moreover, adding a substantially higher threshold of LNs retrieved in the next revision of the AJCC/TNM staging system for ESCC may be more valuable.
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Affiliation(s)
- Zihui Tan
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yuan Chen
- Institute of Hepatology, University College London, Royal Free Hospital, London, UK
| | - Guowei Ma
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yuqi Meng
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jianhua Fu
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lanjun Zhang
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Hao Long
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Tiehua Rong
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Peng Lin
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
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Use of the metastatic lymph node ratio to evaluate the prognosis of esophageal cancer patients with node metastasis following radical esophagectomy. PLoS One 2013; 8:e73446. [PMID: 24039944 PMCID: PMC3767826 DOI: 10.1371/journal.pone.0073446] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 07/22/2013] [Indexed: 12/26/2022] Open
Abstract
Objectives The objective of this study was to investigate the number of metastatic lymph nodes (pN) and the metastatic lymph node ratio (MLR) on the post-surgical prognosis of Chinese patients with esophageal cancer (EC) and lymph node metastasis. Methods We enrolled 353 patients who received primary curative resection for EC from 1990 to 2003. The association of pN and MLR with 5-year overall survival (OS) was examined by receiver operating characteristic (ROC) and area under the curve (AUC) analysis. The Kaplan-Meier method was used to calculate survival rates, and survival curves were compared with the log-rank test. The Cox model was employed for univariate and multivariate analyses of factors associated with 5-year OS. Results The median follow-up time was 41 months, and the 1-, 3- and 5-year OS rates were 71.2%, 30.4%, and 19.5%, respectively. Univariate analysis showed that age, pN stage, and the MLR were prognostic factors for OS. Patients with MLRs less than 0.15, MLRs of 0.15-0.30, and MLRs greater than 0.30 had 5-year OS rates of 30.1%, 17.8%, and 9.5%, respectively (p < 0.001). Patients classified as pN1, pN2, and pN3 had 5-year OS rates of 23.7%, 11.4%, and 9.9%, respectively (p < 0.001). Multivariate analysis indicated that a high MLR and advanced age were significant and independent risk factors for poor OS. Patients classified as pN2 had significantly worse OS than those classified as pN1 (p = 0.022), but those classified as pN3 had similar OS as those classified as pN1 (p = 0.166). ROC analysis indicated that MLR (AUC = 0.585, p = 0.016) had better predictive value than pN (AUC = 0.565, p = 0.068). Conclusions The integrated use of MLR and pN may be suitable for evaluation of OS in Chinese patients with EC and positive nodal metastasis after curative resection.
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The Prognostic Value of the Number of Negative Lymph Nodes in Esophageal Cancer Patients After Transthoracic Resection. Ann Thorac Surg 2013; 96:995-1001. [DOI: 10.1016/j.athoracsur.2013.04.098] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 04/08/2013] [Accepted: 04/29/2013] [Indexed: 11/22/2022]
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Feng JF, Huang Y, Chen L, Zhao Q. Prognostic analysis of esophageal cancer in elderly patients: metastatic lymph node ratio versus 2010 AJCC classification by lymph nodes. World J Surg Oncol 2013; 11:162. [PMID: 23866060 PMCID: PMC3729418 DOI: 10.1186/1477-7819-11-162] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 07/08/2013] [Indexed: 02/07/2023] Open
Abstract
Background Recent studies have proposed a new prognostic factor (metastatic lymph node ratio, or MLNR) for patients with esophageal cancer (EC). However, to the best of our knowledge, there have been no studies conducted to date regarding MLNR in elderly patients. The aim of this study was to determine the prognostic value of MLNR staging compared with the 2010 American Joint Committee on Cancer (AJCC) N staging in elderly patients with EC. Methods From January 2001 to December 2009, a retrospective analysis of 132 consecutive patients older than 70 years of age with esophageal squamous cell carcinoma (ESCC) was conducted. Prognostic factors for disease-specific survival were analyzed. Receiver operating characteristic curves were also plotted to verify the accuracy of MLNR staging and N staging for survival prediction. Results The disease-specific survival rates of N0, N1, N2 and N3 patients according to the AJCC Cancer Staging Manual Seventh Edition N staging were 65.5%, 42.9%, 22.2% and 0, respectively (N0 vs N1, P = 0.017; N1 vsN2, = 0.050; N2 vs N3, P < 0.001). The disease-specific survival rates of MLNR0, MLNR1, MLNR2 and MLNR3 patients were 65.5%, 45.0%, 21.1% and 0, respectively (MLNR0 vsMLNR1, P = 0.026; MLNR1 vs MLNR2, P = 0.033; MLNR2 vs MLNR3, P = 0.015). The areas under the curve were 0.731 for the 2010 AJCC N staging and 0.737 for the MLNR staging. Conclusion MLNR is an independent predictor of survival in elderly patients with ESCC. MLNR staging predicts survival after EC similarly to the 2010 AJCC N classifications and should be considered an alternative to current N staging.
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Situ D, Wang J, Lin P, Long H, Zhang L, Rong T, Ma G. Do tumor location and grade affect survival in pT2N0M0 esophageal squamous cell carcinoma? J Thorac Cardiovasc Surg 2013; 146:45-51. [PMID: 23490249 DOI: 10.1016/j.jtcvs.2013.01.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 10/23/2012] [Accepted: 01/21/2013] [Indexed: 01/02/2023]
Abstract
BACKGROUND The TNM staging system for esophageal cancer in the seventh edition of the AJCC Cancer Staging Manual incorporates tumor grade and location for staging pT2-3N0M0 esophageal squamous cell carcinoma. Patients with pT2N0M0, classified as stage IIA according to the sixth edition of the AJCC Cancer Staging Manual, can now be classified as stage IB, IIA, or IIB. We discuss whether these changes lead to a better prediction of the prognosis of these patients and aimed to find out other factors to forecast patient prognosis. METHODS We retrospectively analyzed 317 patients with postoperative pathologic stage T2N0M0 who underwent esophagectomy between 1990 and 2005 at Sun Yat-sen University Cancer Center. We performed univariate and multivariate analyses to identify prognostic factors for survival and used the Kaplan-Meier method to demonstrate the prognostic efficacy of each prognostic factor, including tumor grade and location. RESULTS The 5-year overall survival was 57%, with a median survival of 84.5 months (6.94 years). Univariate analysis indicated that age, alcohol consumption, and tumor grade were associated with survival. Multivariate Cox proportional hazard regression analysis revealed that alcohol consumption and tumor grade were independent prognostic factors. Survival analysis using the Kaplan-Meier method demonstrated age, cigarette smoking, alcohol consumption, tumor grade, and location as prognostic factors. CONCLUSIONS For pT2N0M0 esophageal squamous cell carcinoma, the seventh edition of the AJCC Cancer Staging Manual does not provide a more distinguishable prediction of prognosis compared with the sixth edition. Tumor grade is an independent prognostic factor in patients with pT2N0M0 esophageal squamous cell carcinoma, whereas tumor location is not. Furthermore, alcohol consumption is an independent prognostic factor that may imply a worse prognosis.
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Affiliation(s)
- Dongrong Situ
- Cancer Center, Sun Yat-sen University State Key Laboratory of Oncology in South China, Guangzhou, China
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Wen J, Luo KJ, Hu Y, Yang H, Fu JH. Metastatic lymph node CHIP expression is a potential prognostic marker for resected esophageal squamous cell carcinoma patients. Ann Surg Oncol 2013; 20:1668-75. [PMID: 23429937 DOI: 10.1245/s10434-012-2733-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Indexed: 11/18/2022]
Abstract
BACKGROUND C-terminal Hsp-interacting protein (CHIP) is an HSP70 and HSP90 interacting co-chaperone and an E3 ubiquitin ligase. Previous studies have reported the role of CHIP in cancer progression by targeting protein degradation. However, its role and clinical significance in esophageal squamous cell carcinoma (ESCC) has not been elucidated. We investigated the correlation of CHIP expression and clinical outcome in a group of T3N1-3M0 surgically resected ESCCs. METHODS Tissue microarrays constructed of 234 surgically resected T3N1-3M0 ESCC primary tumors (PTs) and 163 paired metastatic lymph nodes (MLNs), and sections of 56 cancer-adjacent normal epithelial blocks were used for CHIP evaluation by immunohistochemistry. The clinical and prognostic significance of CHIP expression was analyzed statistically. RESULTS The expression level of CHIP in ESCC MLNs was significantly higher than that in PTs (P < 0.001). Patients with low MLNs' CHIP expression demonstrated better overall survival than those with high CHIP expression (median, 44 vs. 17.9 months; P = 0.010). Multivariate analysis showed that the MLNs' CHIP expression level was an independent prognostic factor in ESCC (relative risk, 2.157; P = 0.028). CONCLUSIONS High expression of CHIP in MLNs suggests poor prognosis for patients with resected T3N1-3M0 ESCC. The result suggests that considering the protein expression of metastatic tumors is important for prognostic prediction.
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Affiliation(s)
- Jing Wen
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou, People's Republic of China
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Wu N, Chen Z, Pang L, Ma Q, Chen G. Prognostic significance of lymph node characteristics on survival in esophageal squamous cell carcinomas. Wien Klin Wochenschr 2013; 125:26-33. [PMID: 23292643 DOI: 10.1007/s00508-012-0310-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 11/29/2012] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To investigate the prognostic significance of lymph node characteristics (total number of resected lymph nodes, metastatic lymph node ratio, and metastatic lymph nodes site) on survival in patients with esophageal squamous cell carcinoma. METHODS Patients who underwent esophagectomy at Huashan Hospital, Fudan University, between October 1, 2003, and December 31, 2008, were reviewed. Survival data and clinicopathological characteristics were collected. RESULTS Among 205 patients, the median overall survival time was 48.0 months and the overall 5-year survival rate was 44.7 %. The independent risk factors for disease-free survival were the metastatic lymph node ratio (P < 0.001) and the number of positive lymph nodes (P < 0.001) and not the total number of resected lymph nodes (Χ (2) = 3.063, P = 0.216). There was no difference in survival between patients with extrathoracic and intrathoracic lymph node metastasis (Χ (2) = 0.295, P = 0.587). No significant relation was found between tumor location and the site of metastatic lymph nodes (rs = 0.125, P = 0.245). CONCLUSIONS Our finding revealed that the ratio and the number, but not the site, of metastatic lymph nodes were independent prognostic risk factors in esophageal squamous cell carcinomas. We suggest taking these factors into consideration for better estimation of prognosis.
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Affiliation(s)
- Ning Wu
- Department of Cardiothoracic Surgery, Huashan Hospital of Fudan University, 200040 Shanghai, PR China
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Hou X, Wei JC, Xu Y, Luo RZ, Fu JH, Zhang LJ, Lin P, Yang HX. The positive lymph node ratio predicts long-term survival in patients with operable thoracic esophageal squamous cell carcinoma in China. Ann Surg Oncol 2012; 20:1653-9. [PMID: 23247981 DOI: 10.1245/s10434-012-2794-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND Controversy exists concerning the optimal cutoff points for the positive lymph node ratio (PLNR) to predict overall survival. We aim to propose reasonable PLNR categories for the discrimination of the survival difference between groups. METHODS We used data from two centers to establish a training (n = 1006) and a validation (n = 783) cohort. All of the patients underwent curative surgical treatment. Martingale residuals from a Cox proportional hazards regression model were used to determine the optimal cutoff points for PLNR to predict overall survival. The survival rate was calculated using the Kaplan-Meier method, and a log-rank test was used to assess the survival differences between groups. The results obtained from the training cohort were tested with the validation cohort at each step. RESULTS We classified the patients into four revised nodal categories: R-pN0 (PLNR = 0), R-pN1 (0< PLNR ≤0.1), R-pN2 (0.1< PLNR ≤0.3), and R-pN3 (PLNR >0.3). Subgroup analysis for the pT2 and pT3 cases showed that the survival differences could be well discriminated between groups based on PLNR in both the training cohort and validation cohort. When we modified the current staging system using revised nodal categories (based on PLNR) instead of the AJCC nodal categories, the survival rate could also be easily distinguished between patients in different stages in both cohorts of patients. CONCLUSIONS The survival rate of ESCC can be discriminated between four groups: PLNR = 0, 0< PLNR ≤0.1, 0.1< PLNR ≤0.3, and PLNR >0.3. Further studies are required to confirm these results.
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Affiliation(s)
- Xue Hou
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, People's Republic of China
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