1
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Pi F, Tang G, Xie C, Cao Y, Yang S, Wei Z. A retrospective study analyzing if lymph node ratio carbon nanoparticles predict stage III rectal cancer recurrence. Front Oncol 2023; 13:1238300. [PMID: 38023220 PMCID: PMC10643199 DOI: 10.3389/fonc.2023.1238300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 09/19/2023] [Indexed: 12/01/2023] Open
Abstract
Background Lymph node ratio has garnered increasing attention as a prognostic marker for rectal cancer; however, few studies have investigated the relationship between lymph node ratio and rectal cancer recurrence. Additionally, Carbon Nanoparticle tracking is a safe and effective strategy for locating tumors and tracking lymph nodes. However, no studies have reported the relationship between Carbon Nanoparticles and rectal cancer recurrence. Methods Patients with stage III rectal cancer who underwent radical resection between January 2016 and 2020 were analyzed. The primary outcome was tumor recurrence. 269 patients with stage III rectal cancer were included in this study. The effects of lymph node ratio, Carbon Nanoparticles, and other clinicopathological factors on rectal cancer recurrence were assessed using univariate, multivariate analyses and the t-test. Results Univariate analysis determined tumor recurrence using cytokeratin 19 fragment, CA-199, CEA, N-stage, positive lymph nodes, total lymph nodes, and lymph node ratio(positive/total); with the lymph node ratio being the most relevant. Receiver operating characteristic (ROC) analysis determined lymph node ratio =0.38 as the optimal cutoff value. The analysis of lymph node ratio ≥0.38 and <0.38 showed statistical differences in three indicators: tumor recurrence, CEA, and use of Carbon Nanoparticles. Conclusion Lymph node ratio is a strong predictor of stage III rectal cancer recurrence and may be considered for inclusion in future tumor-node-metastasis staging and stage III rectal cancer stratification. In addition, we found that Carbon Nanoparticles use significantly increased total lymph nodes and decreased lymph node ratio.
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Affiliation(s)
| | | | | | | | | | - Zhengqiang Wei
- Department Of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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2
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Park SS, Park SC, Kim H, Lee DE, Oh JH, Sohn DK. Assessment of the learning curve for the novel transanal minimally invasive surgery simulator model. Surg Endosc 2022; 36:6260-6270. [PMID: 35467141 DOI: 10.1007/s00464-022-09214-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 11/16/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Transanal minimally invasive surgery (TAMIS) is technically demanding and requires extensive training. We developed the TAMIS simulator model by remodeling an existing laparoscopic training system to educate trainees and analyzed their learning curves. METHODS Between March 2020 and June 2020, 12 trainees performed TAMIS simulator training sessions. The total operative time, including specimen removal and wound closure, was recorded. The wound closure and specimen quality, trainee self-confidence, and supervisor evaluation of technical performance were documented. A moving average was used to analyze the number of training sessions required to stabilize the procedure time, while a cumulative sum analysis was performed to identify that required to reach proficiency with each item. RESULTS Each trainee completed 20 TAMIS simulator training sessions. The median total procedure time was 13 min (range, 4-60 min), which stabilized after 15 training sessions. The median times for specimen removal and wound closure were 3 min (range, 1-18 min) and 10 min (range, 2-50 min), respectively, which stabilized after 7 and 15 training sessions, respectively. The mean specimen and wound closure quality scores were 2.9 ± 0.9 (on a scale from 1 to 4) and 2.3 ± 1.1 (on a scale from 1 to 4), respectively, competencies in which were achieved after 16 and 20 training sessions, respectively. The mean trainee self-confidence and supervisor evaluation of technical performance scores were 2.4 ± 1.2 (on a scale from 1 to 5) and 2.7 ± 1.2 (on a scale from 1 to 5), respectively, competencies in which were achieved after 20 and 17 training sessions, respectively. CONCLUSION Trainees required 15 training sessions to stabilize the procedure time and 16-20 training sessions to demonstrate competencies with the TAMIS simulator model. We expect this simulator model may help surgeons more rapidly acquire the skills required for TAMIS.
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Affiliation(s)
- Sung Sil Park
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi, 10408, South Korea
| | - Sung Chan Park
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi, 10408, South Korea
| | - Hongrae Kim
- Division of Convergence Technology, Research Institute and Hospital, National Cancer Center, Goyang, South Korea
| | - Dong-Eun Lee
- Biostatistics Collaboration Team, Research Institute and Hospital, National Cancer Center, Goyang, South Korea
| | - Jae Hwan Oh
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi, 10408, South Korea
| | - Dae Kyung Sohn
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi, 10408, South Korea.
- Division of Convergence Technology, Research Institute and Hospital, National Cancer Center, Goyang, South Korea.
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3
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Kim MJ, Lee TG. Transanal minimally invasive surgery using laparoscopic instruments of the rectum: A review. World J Gastrointest Surg 2021; 13:1149-1165. [PMID: 34754384 PMCID: PMC8554714 DOI: 10.4240/wjgs.v13.i10.1149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 07/18/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023] Open
Abstract
Transanal minimally invasive surgery (TAMIS) was first described in 2010 as an alternative to transanal endoscopic microsurgery (TEM). The TAMIS technique can be access to the proximal and mid-rectum for resection of benign and early-stage malignant rectal lesions and also used for noncurative intent surgery of more advanced lesions in patients who are not candidates for radical surgery. TAMIS has a shorter learning curve, reduced device setup time, flexibility in instrument use, and versatility in application than TEM. Also, TAMIS shows similar results in a view of the operation time, conversion rate, reoperation rate, and complication to TEM. For these reasons, TAMIS is an easily accessible, technically feasible, and cost-effective alternative to TEM. Overall, TAMIS has enabled the performance of high-quality local excision of rectal lesions by many colorectal surgeons. As TAMIS becomes more broadly utilized such as pelvic abscess drainage, rectal stenosis, and treatment of anastomotic dehiscence, the acquisition of appropriate training must be ensured, and the continued assessment and assurance of outcome must be maintained.
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Affiliation(s)
- Myung Jo Kim
- Department of Surgery, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju 28644, South Korea
| | - Taek-Gu Lee
- Department of Surgery, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju 28644, South Korea
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4
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Caycedo-Marulanda A, Patel SV, Verschoor CP, Uscategui JP, Chadi SA, Moeslein G, Chand M, Maeda Y, Monson JRT, Wexner SD, Mayol J. A Snapshot of the International Views of the Treatment of Rectal Cancer Patients, a Multi-regional Survey: International Tendencies in Rectal Cancer. World J Surg 2020; 45:302-312. [PMID: 33033856 DOI: 10.1007/s00268-020-05795-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Management of rectal cancer has a number of potentially appropriate alternatives for each patient. Despite acceptance of standards, practices may vary among regions. There is significant paucity of data in this area. The objective was to create a snapshot of the regional differences. DESIGN This online survey included 10 questions. Enquiries focused on controversial topics, on surgeon and hospital volume, surgical margins, appropriateness of surgical approaches and techniques, watch-and-wait strategies, and total neoadjuvant therapy. Major colorectal surgery societies around the world were asked to invite their members to complete the survey. OUTCOME MEASURES Frequency of responses across regions within each question was compared by Fisher's exact test. RESULTS Seven hundred and fifty-three participants from 60 countries responded. Eight regions were identified, and four had sufficient representation for comparisons. Similarities and differences in the therapies among these regions were identified. Robotic surgery penetrance is higher in North America, and watch and wait is more accepted in South America. Patients in Oceania are more likely to be diverted; Europe has more usage of taTME. DISCUSSION This online survey was practical as a mean to provide a rapid assessment of the international picture on consistency and variability of rectal cancer patients' care, and to potentially identify opportunities to standardized care to patients. Medical surveys have inherent limitations; pertinence to our study is selection bias. CONCLUSIONS The management of rectal cancer varies among different regions. Identification of differences is important when considering global efforts to improve management and interpret data.
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Affiliation(s)
- Antonio Caycedo-Marulanda
- Department of Surgery, Queens University, Kingston, Canada. .,Health Sciences North Research Institute, Sudbury, Canada. .,Kingston General Hospital, Kingston, Canada.
| | - Sunil V Patel
- Department of Surgery, Queens University, Kingston, Canada
| | | | | | - Sami A Chadi
- Department of Surgery University Health Network (UHN), Toronto, Canada
| | - Gabriela Moeslein
- Department of Surgery, University of Witten/Herdecke, Witten, Germany
| | - Manish Chand
- Department of Surgery, University College London, London, UK
| | - Yasuko Maeda
- Department of Colorectal Surgery, Western General Hospital, Edinburgh, Scotland, UK
| | - John R T Monson
- Center for Colon and Rectal Surgery, Digestive Health and Surgery Institute, AdventHealth Orlando, Orlando, USA
| | - Steven D Wexner
- Department of Surgery, Cleveland Clinic Florida, Weston, USA
| | - Julio Mayol
- Department of Surgery, Hospital Clinico San Carlos, Madrid, Spain
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5
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Zhang X, Wu Q, Gu C, Hu T, Bi L, Wang Z. The effect of increased body mass index values on surgical outcomes after radical resection for low rectal cancer. Surg Today 2019; 49:401-409. [PMID: 30778736 DOI: 10.1007/s00595-019-01778-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/21/2018] [Indexed: 02/05/2023]
Abstract
PURPOSES This study aimed to explore the effect of increased body mass index (BMI) values (overweight: BMI ≥ 25-30 kg/m2; obese: BMI ≥ 30 kg/m2) on surgical outcomes after radical resection for low rectal cancer (LRC). METHODS Patients with LRC who underwent radical surgery from January 2009 to December 2013 were included. The patients were divided into three groups according to their BMI values (control group: BMI < 25 kg/m2; overweight group: BMI 25 to < 30 kg/m2; obese group: BMI ≥ 30 kg/m2). The patients' clinicopathological characteristics and survival data were collected and analyzed. RESULTS A total of 792 patients were enrolled in this study finally (control, n = 624; overweight, n = 147; obese, n = 21). The baseline characteristics of the three groups were similar. We found that an increased BMI was associated with a longer operative time (P < 0.001) and length of postoperative hospital stay (P = 0.032). Patients with increased BMI values had a significantly higher incidence of postoperative complications, including pulmonary infection (P = 0.008), anastomotic leakage (P = 0.029), allergy (P = 0.017) and incisional hernia (P = 0.045). The limited data showed that the pathological outcomes of the three groups did not differ to a statistically significant extent. A multivariate analysis showed that increased BMI was not associated with poorer OS or DFS. CONCLUSION In LRC resection, an increased BMI was associated with a longer operative time, postoperative hospital stay, and an increased number of postoperative complications. However, it did not contribute to poorer pathological or survival outcomes.
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Affiliation(s)
- Xubing Zhang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Guo Xue Xiang No. 37, Chengdu, 610041, China.,West China School of Medicine, Sichuan University, Chengdu, China
| | - Qingbin Wu
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Guo Xue Xiang No. 37, Chengdu, 610041, China.,West China School of Medicine, Sichuan University, Chengdu, China
| | - Chaoyang Gu
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Guo Xue Xiang No. 37, Chengdu, 610041, China
| | - Tao Hu
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Guo Xue Xiang No. 37, Chengdu, 610041, China.,West China School of Medicine, Sichuan University, Chengdu, China
| | - Liang Bi
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Guo Xue Xiang No. 37, Chengdu, 610041, China.,West China School of Medicine, Sichuan University, Chengdu, China
| | - Ziqiang Wang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Guo Xue Xiang No. 37, Chengdu, 610041, China.
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6
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Saklani A, Sugoor P, Chaturvedi A, Bhamre R, Jatal S, Ostwal V, Engineer R. Clinical Utility of Staging Laparoscopy for Advanced Obstructing Rectal Adenocarcinoma: Emerging Tool. Indian J Surg Oncol 2018; 9:488-494. [PMID: 30538377 PMCID: PMC6265173 DOI: 10.1007/s13193-018-0803-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 07/17/2018] [Indexed: 02/07/2023] Open
Abstract
The multimodal treatment for advanced rectal adenocarcinoma mandates accurate preoperative staging with contrast-enhanced computed tomography (CECT) of the thorax, abdomen, and pelvis, and magnetic resonance imaging (MRI) of the pelvis. Unlike gastric cancer, the role of staging laparoscopy (SL) in advanced colorectal cancer has not been evaluated. This study aims to evaluate the clinical value of SL in treatment decision-making for advanced rectal cancer (RC) with near or complete obstructing tumors. Observational review of colorectal database at Tata Memorial Hospital from January 2013 to December 2016 identified 562 patients diagnosed and treated for advanced RC. Of the 562 cases, 48.7% (274) were clinically and radiologically diagnosed of near or complete obstructing advanced RC. Medical records of 34% (94/274) who underwent SL with diversion stoma (DS) were analyzed. In the absence of ascites, extensive peritoneal deposits, and unresectable liver metastases on SL, a curative treatment was offered, which entailed neoadjuvant chemoradiation (NACTRT), whereas the cohort of patients with extensive peritoneal disease received palliative therapy. Of the 94 patients with advanced RC, conventional imaging studies staged 73.5% (69/94) cohort as non-metastatic locally advanced and 26.5% (25/94) had potentially resectable metastatic RC. Pre-therapeutic SL upstaged the disease by 26% (18/69) and 8% (2/25) in locally advanced and potentially resectable metastatic RC cohorts, respectively. Treatment decision changed in 21.2% (20/94) of the patients, and midline laparotomy was thus avoided. In our observational study, SL was found to be a safe and effective staging modality in RC; it detected occult peritoneal disease and prevented midline laparotomy in 21.2% of the cohort, which was of value to determine treatment strategy in patients with advanced RC before initiating NACTRT. SL and laparoscopic-assisted de-functioning stoma were associated with minimal morbidity and led to early initiation of NACTRT.
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Affiliation(s)
- Avanish Saklani
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
| | - P. Sugoor
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
| | - A. Chaturvedi
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
| | - R. Bhamre
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
| | - S. Jatal
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
| | - V. Ostwal
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India
| | - R. Engineer
- Department of Gastrointestinal Surgery and Colorectal Surgical Oncology, Tata Memorial Hospital, Dr Ernest Borges Marg, Parel, Mumbai, Maharashtra 400012 India
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7
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De Bondt C, Psallidas I, Van Schil PEY, van Meerbeeck JP. Combined modality treatment in mesothelioma: a systemic literature review with treatment recommendations. Transl Lung Cancer Res 2018; 7:562-573. [PMID: 30450295 DOI: 10.21037/tlcr.2018.10.02] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In spite of recent progress, malignant pleural mesothelioma (MPM) remains synonymous with poor prognosis. A selected minority (<10%) of patients is eligible for a radical treatment with a combination of systemic chemotherapy (CT) and/or surgery and/or radiotherapy (RT), in an effort to maintain locoregional tumor control after achieving a macroscopically complete resection (MCR). However, as of yet there is no standard of care for this so-called multimodality treatment. As its potential gain is still limited (approximately one year added to overall survival), we must balance its efficacy with its cumulative toxicity. Several combined modality treatment trials are currently ongoing using novel techniques in surgery, RT and/or CT in an attempt to reduce the morbidity and mortality associated with older multimodality treatment protocols. Guidelines are following suit and are now including or mentioning this treatment option. In this systematic review, we analyze the available data in order to address the following questions: Is combined modality better than single modality? What is the optimal regimen within each modality? What is the optimal sequence of combined modality?
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Affiliation(s)
- Charlotte De Bondt
- Department Pulmonology and Thoracic Oncology, Antwerp University and Antwerp University Hospital, Antwerp, Belgium
| | - Ioannis Psallidas
- Oxford Centre for Respiratory Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Paul E Y Van Schil
- Department Thoracic and Vascular Surgery, Antwerp University and Antwerp University Hospital, Antwerp, Belgium
| | - Jan P van Meerbeeck
- Department Pulmonology and Thoracic Oncology, Antwerp University and Antwerp University Hospital, Antwerp, Belgium
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8
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Lee L, Kelly J, Nassif GJ, Keller D, Debeche-Adams TC, Mancuso PA, Monson JR, Albert MR, Atallah SB. Establishing the learning curve of transanal minimally invasive surgery for local excision of rectal neoplasms. Surg Endosc 2017; 32:1368-1376. [PMID: 28812153 DOI: 10.1007/s00464-017-5817-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/03/2017] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Transanal minimally invasive surgery (TAMIS) is an endoscopic operating platform for local excision of rectal neoplasms. However, it may be technically demanding, and its learning curve has yet to be adequately defined. The objective of this study was to determine the number of TAMIS procedures for the local excision of rectal neoplasm required to reach proficiency. METHODS AND PROCEDURES All TAMIS cases performed from 07/2009 to 12/2016 at a single high-volume tertiary care institution for local excision of benign and malignant rectal neoplasia were identified from a prospective database. A cumulative summation (CUSUM) analysis was performed to determine the number of cases required to reach proficiency. The main proficiency outcome was rate of margin positivity (R1 resection). The acceptable and unacceptable R1 rates were defined as the R1 rate of transanal endoscopic microsurgery (TEM-10%) and traditional transanal excision (TAE-26%), which was obtained from previously published meta-analyses. Comparisons of patient, tumor, and operative characteristics before and after TAMIS proficiency were performed. RESULTS A total of 254 TAMIS procedures were included in this study. The overall R1 resection rate was 7%. The indication for TAMIS was malignancy in 57%. CUSUM analysis reported that TAMIS reached an acceptable R1 rate between 14 and 24 cases. Moving average plots also showed that the mean operative times stabilized by proficiency gain. The mean lesion size was larger after proficiency gain (3.0 cm (SD 1.5) vs. 2.3 cm (SD 1.3), p = 0.008). All other patient, tumor, and operative characteristics were similar before and after proficiency gain. CONCLUSIONS TAMIS for local excision of rectal neoplasms is a complex procedure that requires a minimum of 14-24 cases to reach an acceptable R1 resection rate and lower operative duration.
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Affiliation(s)
- Lawrence Lee
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA.
| | - Justin Kelly
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
| | - George J Nassif
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
| | - Deborah Keller
- Department of Surgery, Baylor University Medical Center, Dallas, TX, USA
| | - Teresa C Debeche-Adams
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
| | - Paul A Mancuso
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
| | - John R Monson
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
| | - Matthew R Albert
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
| | - Sam B Atallah
- Center for Colon and Rectal Surgery, Department of Surgery, Florida Hospital, 2501 North Orange Ave, suite 240, Orlando, FL, 32804, USA
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9
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Leonard D, Remue C, Abbes Orabi N, van Maanen A, Danse E, Dragean A, Debetancourt D, Humblet Y, Jouret-Mourin A, Maddalena F, Medina Benites A, Scalliet P, Sempoux C, Van den Eynde M, De Schoutheete JC, Kartheuser A. Lymph node ratio and surgical quality are strong prognostic factors of rectal cancer: results from a single referral centre. Colorectal Dis 2016; 18:O175-84. [PMID: 27128602 DOI: 10.1111/codi.13362] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 02/11/2016] [Indexed: 02/08/2023]
Abstract
AIM Nodal stage is a strong prognostic factor of oncological outcome of rectal cancer. To compensate for the variation in total number of harvested nodes, calculation of the lymph node ratio (LNR) has been advocated. The aim of the study was to compare the impact, on the long-term oncological outcome, of the LNR with other predictive factors, including the quality of total mesorectal excision (TME) and the state of the circumferential resection margin. METHOD Consecutive patients having elective surgery for nonmetastatic rectal cancer were extracted from a prospectively maintained database. Retrospective uni- and multivariate analyses were performed based on patient-, surgical- and tumour-related factors. The prognostic value of the LNR on overall survival (OS) and on overall recurrence-free survival (ORFS) was assessed and a cut-off value was determined. RESULTS From 1998 to 2013, out of 456 patients, 357 with nonmetastatic disease were operated on for rectal cancer. Neoadjuvant radiochemotherapy was administered to 66.7% of the patients. The mean number of lymph nodes retrieved was 12.8 ± 8.78 per surgical specimen. A lower lymph node yield was obtained in patients who received neoadjuvant chemoradiotherapy (11.8 vs 14.2; P = 0.014). The 5-year ORFS was 71.8% and the 5-year OS was 80.1%. Multivariate analysis confirmed LNR, the quality of TME and age to be independent prognostic factors of OS. LNR, age and perineural infiltration were independently associated with ORFS. Low- and high-risk patients could be discriminated using an LNR cut-off value of 0.2. CONCLUSION LNR is an independent prognostic factor of OS and ORFS. In line with the principles of optimal surgical management, the quality of TME and lymph node yield are essential technical requirements.
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Affiliation(s)
- D Leonard
- Colorectal Surgery Unit, Cliniques universitaires Saint-Luc, Brussels, Belgium.,Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - C Remue
- Colorectal Surgery Unit, Cliniques universitaires Saint-Luc, Brussels, Belgium.,Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - N Abbes Orabi
- Colorectal Surgery Unit, Cliniques universitaires Saint-Luc, Brussels, Belgium.,Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - A van Maanen
- Statistical Support Unit, Institut Roi Albert II, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - E Danse
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Radiology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - A Dragean
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Radiology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - D Debetancourt
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - Y Humblet
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Medical Oncology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - A Jouret-Mourin
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Pathology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - F Maddalena
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - A Medina Benites
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - P Scalliet
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Radiation Oncology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - C Sempoux
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Pathology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - M Van den Eynde
- Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium.,Department of Medical Oncology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - J C De Schoutheete
- Colorectal Surgery Unit, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - A Kartheuser
- Colorectal Surgery Unit, Cliniques universitaires Saint-Luc, Brussels, Belgium.,Cliniques des Pathologies Tumorales du Colon et de Rectum (CPTCR), Institut Roi Albert II, Cliniques universitaires Saint Luc, Brussels, Belgium
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10
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Chen L, Glimelius I, Neovius M, Ekberg S, Martling A, Eloranta S, Smedby KE. Work Loss Duration and Predictors Following Rectal Cancer Treatment among Patients with and without Prediagnostic Work Loss. Cancer Epidemiol Biomarkers Prev 2016; 25:987-94. [PMID: 27197302 DOI: 10.1158/1055-9965.epi-16-0112] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 04/01/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The number of working-age rectal cancer survivors is increasing due to early detection and improved treatment. However, work loss duration and predictors among them have not been studied thoroughly. METHODS We identified 3,438 patients with stage I-III rectal cancer, 18 to 61 years of age in the Swedish Colorectal Cancer Register 1996-2009. Information on work loss due to sick leave or disability pension was collected from 2 years before diagnosis to 5 years after (until December 31st, 2013). Incidence rate ratios (IRR) of work loss were estimated in a negative binominal model by clinical characteristics for the 1st and 2nd-5th years after diagnosis. Patients were stratified by prediagnostic work loss. RESULTS Patients without prediagnostic work loss (74%) experienced median 147 days (25th and 75th percentile: 55 and 281) of work loss during the 1st year after diagnosis. Work loss rates (2nd-5th years) were significantly increased among relapse-free patients diagnosed in stage III [IRR = 1.92; 95% confidence interval (CI), 1.52-2.43], operated with abdominoperineal resection (IRR = 1.26; 95% CI, 1.03-1.56), and treated with neoadjuvant (chemo)radiotherapy (IRR = 1.46; 95% CI, 1.06-2.02). Patients with prediagnostic work loss (26%) experienced median 336 days (25th and 75th percentile: 183 and 365) of work loss during the 1st year, and rates did not vary clinically till 5 years. CONCLUSION Without prediagnostic work loss, disease- and treatment-related factors could help identify rectal cancer patients in need of early interventions to facilitate return to work. IMPACT Clinical awareness around prediagnostic and postdiagnostic work loss and individualized cancer rehabilitation programs should be emphasized among cancer survivors. Cancer Epidemiol Biomarkers Prev; 25(6); 987-94. ©2016 AACR.
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Affiliation(s)
- Lingjing Chen
- Clinical Epidemiology Unit, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden.
| | - Ingrid Glimelius
- Clinical Epidemiology Unit, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden. Department of Immunology, Genetics, and Pathology, Uppsala University, Uppsala, Sweden
| | - Martin Neovius
- Clinical Epidemiology Unit, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Sara Ekberg
- Clinical Epidemiology Unit, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Anna Martling
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Sandra Eloranta
- Clinical Epidemiology Unit, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Karin E Smedby
- Clinical Epidemiology Unit, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
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Marques CFS, Nahas CSR, Ribeiro U, Bustamante LA, Pinto RA, Mory EK, Cecconello I, Nahas SC. Postoperative complications in the treatment of rectal neoplasia by transanal endoscopic microsurgery: a prospective study of risk factors and time course. Int J Colorectal Dis 2016; 31:833-41. [PMID: 26861635 DOI: 10.1007/s00384-016-2527-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/02/2016] [Indexed: 02/08/2023]
Abstract
PURPOSE Transanal endoscopic microsurgery (TEM) is a safe and efficient minimally invasive treatment for rectal benign and early malignant neoplasia, but postoperative complications may be severe. We aimed to evaluate the risk factors related to the incidence, severity, and time course of postoperative complications of TEM. METHODS This is a prospective study of postoperative complications in 53 patients (>18 years old) with benign or early rectal neoplasia who underwent TEM with curative intention or, for higher stages, palliation. Outcome measures included age, sex, American Society of Anesthesiologists score, neoadjuvant chemoradiotherapy, lesion height and size, pathologic margins, tumor histology, and suture type. RESULTS Overall morbidity was 50 %. Temporary fecal incontinence was the most frequent complication (17.3 %). Complication rates of Clavien-Dindo grades I and II were 21.1 % and those of grades III and IV 3.8 %. Of patients with complications, more had lesions under the first rectal valve than over the first valve (61.54 % vs 38.46 %, p = 0.04). Patients submitted to chemoradiotherapy had a 24-fold greater chance of presenting grade II complications (p = 0.002). When the surgical defect was treated using the TEM device to perform the suture, the chance of having grade III complications was reduced 16-fold (p = 0.04). Fifty-three percent of complications occurred in the first 10 days and 95 % within 20 days. CONCLUSIONS Postoperative complications after transanal endoscopic microsurgery for the treatment of rectal neoplasia are frequent, acceptable, and usually controllable with pharmacologic treatment. Over time the nature of complications is continuous, centered on the first 20 days after surgery.
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Affiliation(s)
- Carlos Frederico S Marques
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil.
| | - Caio Sergio R Nahas
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
| | - Ulysses Ribeiro
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
| | - Leonardo A Bustamante
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
| | - Rodrigo Ambar Pinto
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
| | - Eduardo Kenzo Mory
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
| | - Ivan Cecconello
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
| | - Sergio Carlos Nahas
- Digestive Surgery, Gastroenterology Department, Hospital das Clinicas/Cancer Institute University of São Paulo Medical School, Rua Dona Adma Jafet, 74, cj172-174, Bela Vista, São Paulo, SP, 01308-050, Brazil
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12
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Keller DS, Tahilramani RN, Flores-Gonzalez JR, Mahmood A, Haas EM. Transanal Minimally Invasive Surgery: Review of Indications and Outcomes from 75 Consecutive Patients. J Am Coll Surg 2016; 222:814-22. [PMID: 27016903 DOI: 10.1016/j.jamcollsurg.2016.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 01/11/2016] [Accepted: 02/02/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Transanal minimally invasive surgery (TAMIS) is an advanced local excision platform that helps overcome technical limitations and morbidity associated with other resection methods. Our goal was to review the indications and outcomes of TAMIS in a large series. STUDY DESIGN A review of a prospective database identified patients who underwent TAMIS from 2010 to 2014. Demographic, perioperative, short-term outcomes, and recurrence data were analyzed. RESULTS There were 75 patients with 76 lesions analyzed. Mean age was 64.0 years (SD 11.6 years) and mean BMI was 27.4 kg/m(2) (SD 4.7 kg/m(2)). Median American Society of Anesthesiologists (ASA) score was 2 (range 1 to 4). There were 59 benign (77.3%) and 17 malignant (22.7%) lesions: 6 pT0, 6 pT1, 4 pT2, and 1 pT3. Median lesion distance from the anal verge was 10 cm (range 6 to 16 cm). Mean operative time was 76.0 minutes (SD 36.1 minutes). Three patients had intraperitoneal entry; all were closed transanally, but 2 had temporary diverting ileostomies fashioned to ensure healing. Median length of stay was 1 day (range 0 to 6). One patient had a fragmented lesion (1.3%). Five patients had positive margins: 2 in palliative pT2 resections, and 3 in pT1, pT2, and gastrointestinal stromal tumor (GIST) patients. They were managed with radical resection (pT1 and pT2 lesions) and surveillance/medical oncology (GIST). Postoperatively, 3 patients had complications (bleeding, rectal stricture, and recto-vaginal fistula), and all were managed nonoperatively. After median follow-up of 39.5 months (range 10.5 to 65.3 months), 1 pT1 patient with negative margins developed a local recurrence and underwent salvage APR. CONCLUSIONS Transanal minimally invasive surgery is a viable option for excision of benign or early stage rectal masses, with mid-term oncologic outcomes comparable to those of radical resection. Further, TAMIS minimizes the morbidity and can allow more patients to benefit from the minimally invasive approach.
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Affiliation(s)
- Deborah S Keller
- Colorectal Surgical Associates LLP, LTD, Houston, TX; Department of Surgery, Houston Methodist Hospital, Houston, TX
| | - Reena N Tahilramani
- Colorectal Surgical Associates LLP, LTD, Houston, TX; Minimally Invasive Colon and Rectal Surgery, The University of Texas Medical School at Houston, Houston, TX
| | | | - Ali Mahmood
- Colorectal Surgical Associates LLP, LTD, Houston, TX; Minimally Invasive Colon and Rectal Surgery, The University of Texas Medical School at Houston, Houston, TX; Department of Surgery, Houston Methodist Hospital, Houston, TX
| | - Eric M Haas
- Colorectal Surgical Associates LLP, LTD, Houston, TX; Minimally Invasive Colon and Rectal Surgery, The University of Texas Medical School at Houston, Houston, TX; Department of Surgery, Houston Methodist Hospital, Houston, TX.
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13
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Keller DS, Haas EM. Transanal Minimally Invasive Surgery: State of the Art. J Gastrointest Surg 2016; 20:463-9. [PMID: 26608195 DOI: 10.1007/s11605-015-3036-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 11/17/2015] [Indexed: 01/31/2023]
Abstract
The treatment for rectal cancer and benign rectal lesions continues to progress in the arena of minimally invasive surgery. While surgical excision of the primary mass remains essential for eradication of disease, there has been a paradigm shift towards less invasive resection methods. Local excision is increasing in popularity for its low morbidity and excellent functional results in select patients. Transanal minimally invasive surgery (TAMIS) is a new technology developed to elevate the practice of local excision to state-of-the-art resection. The goal of this article is to evaluate the history, short-term outcomes, and evolution of the TAMIS technique for excision of benign and malignant rectal neoplasia.
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Affiliation(s)
- D S Keller
- Colorectal Surgical Associates, Houston, TX, USA
- Division of Colon and Rectal Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - E M Haas
- Colorectal Surgical Associates, Houston, TX, USA.
- Division of Minimally Invasive Colorectal Surgery, Department of Surgery, University of Texas Medical School at Houston, 7900 Fannin, Suite 2700, Houston, TX, 77054, USA.
- Division of Colon and Rectal Surgery, Houston Methodist Hospital, Houston, TX, USA.
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14
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Colorectal cancer survival by stage of cases diagnosed in Mallorca, Spain, between 2006 and 2011 and factors associated with survival. Cancer Epidemiol 2016; 41:63-70. [PMID: 26828896 DOI: 10.1016/j.canep.2016.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 12/23/2015] [Accepted: 01/02/2016] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To establish cause-specific survival by stage of colorectal cancer up to 8 years from diagnosis, and to identify factors which explain and predict the likelihood of survival. METHODOLOGY Retrospective follow-up study of people diagnosed with invasive colorectal cancer during 2006-2011, identified through the Mallorca Cancer Registry. DCO and lymphomas were excluded. Sex, age, diagnostic method, site, histology, T, N, M, and stage, date of diagnosis, date of follow-up or death, and cause of death were collected. End point of follow-up was 31st December 2013. Multiple imputation (MI) method was performed to obtain stage when unknown. Actuarial and Kaplan-Meier methods were used for survival analysis. Extended Cox models were built to identify factors that explain and predict survival. RESULTS 2889 cases were identified, 41.7% in women and 58.3% in men, with a mean age of 70.5 years. Unknown stage represented 15.3% of cases. After MI, 15% were in stage I, 26.7% were in II, 32.7% in III, and 25.6% in IV. Survival was 56% at the end of the 5th year. Survival by stage changed significantly after MI and was estimated to 83% at stage I, 73% at II, 62% at III, and 16% at IV. Extended Cox model showed that survival worsened with age, mucinous histology, and stage. Risk of dying was 17.0 times higher in stage IV compared to stage I, 3.7 times in stage III, and 1.6 times in stage II. CONCLUSIONS More than half of colorectal cancer patients will survive 5 years after diagnosis, but only if diagnosed in stages I-III.
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15
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Ryan JE, Warrier SK, Lynch AC, Heriot AG. Assessing pathological complete response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer: a systematic review. Colorectal Dis 2015; 17:849-61. [PMID: 26260213 DOI: 10.1111/codi.13081] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/11/2015] [Indexed: 12/13/2022]
Abstract
AIM Pathological complete response to neoadjuvant chemoradiotherapy is found in 20% of patients with rectal cancer undergoing long-course chemoradiotherapy. Some authors have suggested that these patients do not need to undergo surgery and can be managed with careful follow-up, with surgery only used in the event of clinical failure. Widespread adoption of this regimen is limited by the accuracy of methods to confirm a pathological complete response (pCR). METHOD A systematic search of PubMed, Medline and Cochrane databases was conducted to identify clinical, histological and radiological features in those patients with rectal cancer who achieved a pCR following chemoradiotherapy. Searches were conducted with the following keywords and MeSH search terms: 'rectal neoplasm', 'response', 'neoadjuvant', 'preoperative chemoradiation' and 'tumour response'. After review of title and abstracts, 89 articles addressing the assessment of pCR were identified. RESULTS Histology and clinical assessment are the most effective methods of assessment of pCR, with histology considered the gold standard. Clinical assessment is limited to low rectal tumours and is open to significant inter-rater variability, while histological examination requires a surgical specimen. Diffusion-weighted MRI and (18) F-fluorodeoxyglucose positron emission tomography/CT demonstrate the greatest potential for the assessment of pCR, but both modalities have limited accuracy. CONCLUSION Determination of a pCR is crucial if a nonoperative approach is to be undertaken proactively. Various methods are available, but currently they lack sufficient sensitivity and specificity to define management. This is likely to be an area of further research in the future.
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Affiliation(s)
- J E Ryan
- Department of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Epworth Healthcare, Melbourne, Victoria, Australia.,Austin Academic Centre, University of Melbourne, Melbourne, Victoria, Australia
| | - S K Warrier
- Department of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - A C Lynch
- Department of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - A G Heriot
- Department of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
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16
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Wang YW, Huang LY, Song CL, Zhuo CH, Shi DB, Cai GX, Xu Y, Cai SJ, Li XX. Laparoscopic vs open abdominoperineal resection in the multimodality management of low rectal cancers. World J Gastroenterol 2015; 21:10174-83. [PMID: 26401082 PMCID: PMC4572798 DOI: 10.3748/wjg.v21.i35.10174] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/12/2015] [Accepted: 07/15/2015] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the safety and feasibility of laparoscopic abdominoperineal resection compared with the open procedure in multimodality management of rectal cancer. METHODS A total of 106 rectal cancer patients who underwent open abdominoperineal resection (OAPR) were matched with 106 patients who underwent laparoscopic abdominoperineal resection (LAPR) in a 1 to 1 fashion, between 2009 and 2013 at Fudan University Shanghai Cancer Center. Propensity score matching was carried out based on age, gender, pathological staging of the disease and administration of neoadjuvant chemoradiation. Data regarding preoperative staging, surgical technique, pathological results, postoperative recovery and complications were reviewed and compared between the LAPR and OAPR groups. Perineal closure around the stoma and pelvic floor reconstruction were performed only in OAPR, not in LAPR. Therefore, abdominoperineal resection procedure-specific surgical complications including parastomal hernia and perineal wound complications were compared between the open and laparoscopic procedure. Regular surveillance of the two cohorts was carried out to gather prognostic data. Disease-free survival was analyzed using Kaplan-Meier estimate and log-rank test. Subgroup analysis was performed in patients with locally advanced disease treated with preoperative chemoradiation followed by surgical resection. RESULTS No significant difference was found between the LAPR group and the OAPR group in terms of clinicopathological features. The operation time (180.8 ± 47.8 min vs 172.1 ± 49.2 min, P = 0.190), operative blood loss (93.9 ± 60.0 mL vs 88.4 ± 55.2 mL, P = 0.494), total number of retrieved lymph nodes (12.9 ± 6.9 vs 12.9 ± 5.4, P = 0.974), surgical complications (12.3% vs 15.1%, P = 0.549) and pathological characteristics were comparable between the LAPR and OAPR group, respectively. Compared with OAPR patients, LAPR patients showed significantly shorter postoperative analgesia (2.4 ± 0.7 d vs 2.7 ± 0.6 d, P < 0.001), earlier first flatus (57.3 ± 7.9 h vs 63.5 ± 9.2 h, P < 0.001), shorter urinary drainage time (6.5 ± 3.4 d vs 7.8 ± 1.3 d, P < 0.001), and shorter postoperative admission (11.2 ± 4.7 d vs 12.6 ± 4.0 d, P = 0.014). With regard to APR-specific complications (perineal wound complications and parastomal hernia), there were no significant differences between the two groups. Similar results were found in the 26 pairs of patients administered neoadjuvant chemoradiation in subgroup analysis. During the follow-up period, no port site recurrences were observed. CONCLUSION Laparoscopic abdominoperineal resection for multidisciplinary management of rectal cancer is safe, and is associated with earlier recovery and shorter admission time in combination with neoadjuvant chemoradiation.
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17
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Chen L, Glimelius I, Neovius M, Eloranta S, Ekberg S, Martling A, Smedby KE. Risk of disability pension in patients following rectal cancer treatment and surgery. Br J Surg 2015. [PMID: 26215637 DOI: 10.1002/bjs.9885] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Aspects of survivorship, such as long-term ability to work, are increasingly relevant owing to the improved survival of patients with rectal cancer. The aim of this study was to assess risk and determinants of disability pension (DP) in this patient group. METHODS Using Swedish national clinical and population-based registers, patients with stage I-III rectal cancer aged 18-61 years in 1995-2009 were identified at diagnosis and matched with population comparators. Prospectively registered records of DP during follow-up were retrieved up to 2013. Non-proportional and proportional hazards models were used to estimate the incidence rate ratio (IRR) for DP annually and overall. Potential variations in risk by demographic and clinical factors were calculated, with relapse as a time-varying exposure. RESULTS A total of 2815 patients were identified and compared with 13 465 population comparators. During a median follow-up of 6·0 (range 0-10) years, 23·3 per cent of the relapse-free patients and 10·3 per cent of the population comparators received DP (IRR 2·40, 95 per cent c.i. 2·17 to 2·65). An increased annual risk of DP was evident almost every year until the tenth year of follow-up. Abdominoperineal resection was associated with an increased DP risk compared with anterior resection (IRR 1·44, 1·19 to 1·75). Surgical complications (IRR 1·33, 1·10 to 1·62) and reoperation (IRR 1·42, 1·09 to 1·84), but not radiotherapy or chemotherapy, were associated with risk of DP. CONCLUSION Relapse-free patients with rectal cancer of working age are at risk of disability pension.
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Affiliation(s)
- L Chen
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - I Glimelius
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.,Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - M Neovius
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - S Eloranta
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - S Ekberg
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - A Martling
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - K E Smedby
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
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Current Role of Endoscopic Ultrasonography in Rectal Cancer Evaluation During Multidisciplinary Therapy. CURRENT HEALTH SCIENCES JOURNAL 2015; 41:259-263. [PMID: 30538827 PMCID: PMC6246987 DOI: 10.12865/chsj.41.03.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 03/15/2015] [Indexed: 11/18/2022]
Abstract
We report the case of a patient presenting in the Gastroenterology Department with intermittent rectal bleeding during the past year. A diagnosis of a low rectal adenocarcinoma was based on colonoscopy examination with biopsies, and staging procedures included transrectal endoscopic ultrasonography and magnetic resonance imaging of the abdomen and pelvis (cT2N0M0). Consequently the patient was referred for pre-operative chemoradiotherapy, achieving a complete clinical response as documented by repeated EUS and MRI examinations. Transanal endoscopic microsurgery with pathological assessment of the resected specimen revealed residual adenocarcinoma, highlighting the limitations of current imaging methods, and the constant need of technological improvements.
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Abstract
BACKGROUND Prognostication is an important aspect of medical practice. It relies on statistical modeling testing the correlation of variables with the outcome of interest. OBJECTIVE In contrast with the classic approach of predictive modeling, this study aimed to estimate the unique, individual, and relative contributions. This includes the quantitative contributions of patient-, tumor-, and treatment-related factors to oncologic outcome after rectal cancer resection. DESIGN This was a retrospective analysis of prospectively registered data. SETTINGS The study included 65 hospitals participating on a voluntary basis in the Project on Cancer of the Rectum, a Belgian multidisciplinary improvement project of rectal cancer care. PATIENTS A total of 1470 patients presenting midrectal or low-rectal adenocarcinoma without distant metastasis were included. INTERVENTION The study intervention was total mesorectal excision with or without sphincter preservation. MAIN OUTCOME MEASURES The unique, individual, and relative contributions of a set of covariables to the statistical variability of the distant metastasis rate and overall survival have been calculated. RESULTS The 5-year distant metastasis rate was 21% and overall survival 76%. A large amount of the variability of the outcomes (ie, 83.6% to 84.2%) could not be predicted by the prognostic factors. Unique contributions of the predictors ranged from 0.1% to 3.1%. The 3 risk factors with the highest unique contribution for distant metastasis were lymph node ratio, pathologic tumor stage, and total mesorectal quality; for overall survival they were age, lymph node ratio, and ASA score. LIMITATIONS The main weakness of this study was incomplete participation and registration in the Project on Cancer of the Rectum. CONCLUSIONS Several factors influence oncologic outcomes and are present in prediction models. However, the models predict relatively little of outcome variation.
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Vignali A, Nardi PD. Multidisciplinary treatment of rectal cancer in 2014: Where are we going? World J Gastroenterol 2014; 20:11249-11261. [PMID: 25170209 PMCID: PMC4145763 DOI: 10.3748/wjg.v20.i32.11249] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 05/08/2014] [Accepted: 05/26/2014] [Indexed: 02/06/2023] Open
Abstract
In the present review we discuss the recent developments and future directions in the multimodal treatment of locally advanced rectal cancer, with respect to staging and re-staging modalities, to the current role of neoadjuvant chemo-radiation and to the conservative and more limited surgical approaches based on tumour response after neoadjuvant combined therapy. When initial tumor staging is considered a high accuracy has been reported for T pre-treatment staging, while preoperative lymph node mapping is still suboptimal. With respect to tumour re-staging, all the current available modalities still present a limited accuracy, in particular in defining a complete response. The role of short vs long-course radiotherapy regimens as well as the optimal time of surgery are still unclear and under investigation by means of ongoing randomized trials. Observational management or local excision following tumour complete response are promising alternatives to total mesorectal excision, but need further evaluation, and their use outside of a clinical trial is not recommended. The preoperative selection of patients who will benefit from neoadjuvant radiotherapy or not, as well as the proper identification of a clinical complete tumour response after combined treatment modalities,will influence the future directions in the treatment of locally advanced rectal cancer.
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Intven M, Reerink O, Philippens MEP. Dynamic contrast enhanced MR imaging for rectal cancer response assessment after neo-adjuvant chemoradiation. J Magn Reson Imaging 2014; 41:1646-53. [PMID: 25124320 DOI: 10.1002/jmri.24718] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 07/17/2014] [Accepted: 07/18/2014] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Patient selection for organ sparing treatment after good response to neo-adjuvant chemoradiation (CRT) for locally advanced rectal cancer is challenging as no optimal restaging modality is available after CRT. In this study, we assessed the value of dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) for rectal cancer pathological response prediction. METHODS In 51 patients with locally advanced rectal cancer, the tumor volume and volume transfer constant (Ktrans) were obtained at 3 Tesla before CRT and surgery. The predictive potential for pathological complete response (pCR) and good response (GR) was assessed. GR was defined as pCR and near-pCR based on the tumor regression grade. RESULTS The GR group consisted of 10 patients (19.6%) with six pCR (11.8%). Both the post-CRT tumor volume and post-CRT Ktrans values and the relative change in volume (ΔVolume) and Ktrans (ΔKtrans) were predictive for pathological response. ΔKtrans showed the best predictive potential with a positive predictive value (PPV) of 100% for GR using a cutoff value of 32% reduction in Ktrans. For pCR the best PPV was 80% with a multiparameter model containing ΔVolume and ΔKtrans. CONCLUSION DCE-MRI has predictive potential for pathological response after CRT in rectal cancer with the relative ΔKtrans being the most predictive parameter.
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Affiliation(s)
- Martijn Intven
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Onne Reerink
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, The Netherlands
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Bianchi PP, Petz W, Luca F, Biffi R, Spinoglio G, Montorsi M. Laparoscopic and robotic total mesorectal excision in the treatment of rectal cancer. Brief review and personal remarks. Front Oncol 2014; 4:98. [PMID: 24834429 PMCID: PMC4018567 DOI: 10.3389/fonc.2014.00098] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/20/2014] [Indexed: 12/11/2022] Open
Abstract
The current standard treatment for rectal cancer is based on a multimodality approach with preoperative radiochemotherapy in advanced cases and complete surgical removal through total mesorectal excision (TME). The most frequent surgical approach is traditional open surgery, as laparoscopic TME requires high technical skill, a long learning curve, and is not widespread, still being confined to centers with great experience in minimally invasive techniques. Nevertheless, in several studies, the laparoscopic approach, when compared to open surgery, has shown some better short-term clinical outcomes and at least comparable oncologic results. Robotic surgery for the treatment of rectal cancer is an emerging technique, which could overcome some of the technical difficulties posed by standard laparoscopy, but evidence from the literature regarding its oncologic safety and clinical outcomes is still lacking. This brief review analyses the current status of minimally invasive surgery for rectal cancer therapy, focusing on oncologic safety and the new robotic approach.
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Affiliation(s)
- Paolo Pietro Bianchi
- Unit of Minimally Invasive Surgery, European Institute of Oncology , Milan , Italy
| | - Wanda Petz
- Unit of Minimally Invasive Surgery, European Institute of Oncology , Milan , Italy
| | - Fabrizio Luca
- Unit of Abdominal Integrated Surgery, European Institute of Oncology , Milan , Italy
| | - Roberto Biffi
- Division of Abdomino-Pelvic Surgery, European Institute of Oncology , Milan , Italy
| | - Giuseppe Spinoglio
- Department of General and Oncologic Surgery, Azienda Ospedaliera SS Antonio e Biagio , Alessandria , Italy
| | - Marco Montorsi
- Division of General Surgery, Istituto Clinico Humanitas, School of Medicine, University of Milan , Rozzano , Italy
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Damin DC, Lazzaron AR. Evolving treatment strategies for colorectal cancer: A critical review of current therapeutic options. World J Gastroenterol 2014; 20:877-887. [PMID: 24574762 PMCID: PMC3921541 DOI: 10.3748/wjg.v20.i4.877] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 11/22/2013] [Accepted: 01/06/2014] [Indexed: 02/06/2023] Open
Abstract
Management of rectal cancer has markedly evolved over the last two decades. New technologies of staging have allowed a more precise definition of tumor extension. Refinements in surgical concepts and techniques have resulted in higher rates of sphincter preservation and better functional outcome for patients with this malignancy. Although, preoperative chemoradiotherapy followed by total mesorectal excision has become the standard of care for locally advanced tumors, many controversial matters in management of rectal cancer still need to be defined. These include the feasibility of a non-surgical approach after a favorable response to neoadjuvant therapy, the ideal margins of surgical resection for sphincter preservation and the adequacy of minimally invasive techniques of tumor resection. In this article, after an extensive search in PubMed and Embase databases, we critically review the current strategies and the most debatable matters in treatment of rectal cancer.
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