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Neoadjuvant rectal cancer

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https://www.readbyqxmd.com/read/29046927/fdg-pet-ct-radiomics-for-predicting-the-outcome-of-locally-advanced-rectal-cancer
#1
Pierre Lovinfosse, Marc Polus, Daniel Van Daele, Philippe Martinive, Frédéric Daenen, Mathieu Hatt, Dimitris Visvikis, Benjamin Koopmansch, Frédéric Lambert, Carla Coimbra, Laurence Seidel, Adelin Albert, Philippe Delvenne, Roland Hustinx
PURPOSE: The aim of this study was to investigate the prognostic value of baseline (18)F-FDG PET/CT textural analysis in locally-advanced rectal cancer (LARC). METHODS: Eighty-six patients with LARC underwent (18)F-FDG PET/CT before treatment. Maximum and mean standard uptake values (SUVmax and SUVmean), metabolic tumoral volume (MTV), total lesion glycolysis (TLG), histogram-intensity features, as well as 11 local and regional textural features, were evaluated...
October 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29044538/laparoscopic-versus-open-surgery-for-rectal-cancer-after-neoadjuvant-chemoradiation-long-term-outcomes-of-a-propensity-score-matched-study
#2
Ramakrishnan Ayloor Seshadri, Rajaraman Swaminathan, Ayyappan Srinivasan
BACKGROUND AND OBJECTIVES: Laparoscopic resection for rectal cancer has short-term benefits when compared to open resection. The aim of this study was to compare the long-term oncological outcomes of laparoscopic and open resection for rectal cancer following neoadjuvant chemoradiation (NCRT). METHODS: In this propensity matched study, a series of 72 patients who underwent laparoscopic surgery for rectal cancer following NCRT between 2004 and 2010 (Lap group) were matched with 72 patients who underwent open surgery for rectal cancer in the same period (Open group)...
October 16, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29035999/effects-on-18f-fdg-pet-ct-brain-glucose-metabolism-in-rectal-cancer-patients-undergoing-neoadjuvant-chemotherapy
#3
Alexei M C Machado, Theara C Fagundes, Arnoldo Mafra, Rodrigo G Silva, Ana Carolina G Castro, Marcelo Mamede
PURPOSE: Retrospective study of the effects of anticancer treatment on the brain metabolism of patients diagnosed with rectal cancer based on a large and homogeneous sample of 40 paired F-FDG PET/CT volumes taken from 20 patients. The results are compared to the ones presented by related works to help elucidating the mechanisms of neurotoxicity associated to a decrease in memory, learning and motor skills. PATIENTS AND METHODS: Twenty patients with rectal adenocarcinoma were scanned before and after neoadjuvant chemoradiation based exclusively on 5-fluorouracil and leucovorin...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29022795/local-recurrence-after-standard-abdominoperineal-resection-do-we-really-need-elape
#4
A Xanthis, D Greenberg, B Jha, O Olafimihan, R Miller, N Fearnhead, J Davies, N Hall
Introduction Low rectal cancers requiring abdominoperineal resection tend to have a worse prognosis than higher tumours, which may be treated by anterior resection. One of the reasons for this may be inadequate local surgery, in particular the narrow waist of the resection specimen of a standard abdominoperineal resection may be associated with a high positive circumferential resection margin. The extralevator abdominoperineal excision (ELAPE) aims to improve the R0 resection rate but carries significant morbidity...
September 15, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28991082/a-distal-resection-margin-of-%C3%A2-1%C3%A2-mm-and-rectal-cancer-recurrence-after-sphincter-preserving-surgery-the-role-of-a-positive-distal-margin-in-rectal-cancer-surgery
#5
Wei-Gen Zeng, Meng-Jia Liu, Zhi-Xiang Zhou, Zhen-Jun Wang
BACKGROUND: There is little information about the prognostic value of a microscopically positive distal margin in patients who have rectal cancer. OBJECTIVE: We aimed to investigate the influence of a distal margin of ≤1 mm on oncologic outcomes after sphincter-preserving resection for rectal cancer. DESIGN: This is a retrospective cohort study. SETTINGS: The study was conducted at 2 hospitals. PATIENTS: A total of 6574 patients underwent anterior resection for rectal cancer from January 1999 to December 2014; 97 (1...
November 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28988257/clinical-and-prognostic-significance-of-pathological-and-inflammatory-markers-in-mucinous-rectal-cancer-patients-receiving-neoadjuvant-chemoradiotherapy-and-curative-surgery
#6
Jian Zhao, Jian Xu, Rui Zhang
BACKGROUND The aim of this study was to investigate the clinical and prognostic significance of pathological and inflammatory marker in mucinous rectal cancer patients receiving neoadjuvant chemoradiotherapy and curative surgery. MATERIAL AND METHODS We retrospectively evaluated the patient records of mucinous rectal cancer patients receiving neoadjuvant chemoradiotherapy and curative surgery at Liaoning Cancer Hospital and Institute from January 2006 to December 2013. The relationship between overall survival (OS) and clinicopathologic variables, pretreatment neutrophil-to-lymphocyte ratio (NLR), pretreatment platelet-to-lymphocyte ratio (PLR), pretreatment lymphocyte-to-monocyte ratio (LMR), and other biomarkers were analyzed by using Kaplan-Meier analysis and log-rank testing...
October 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28984767/outcomes-of-robotic-versus-laparoscopic-surgery-for-mid-and-low-rectal-cancer-after-neoadjuvant-chemoradiation-therapy-and-the-effect-of-learning-curve
#7
COMPARATIVE STUDY
Yu-Min Huang, Yan Jiun Huang, Po-Li Wei
Randomized controlled trials have demonstrated that laparoscopic surgery for rectal cancer is safe and can accelerate recovery without compromising oncological outcomes. However, such a surgery is technically demanding, limiting its application in nonspecialized centers. The operational features of a robotic system may facilitate overcoming this limitation. Studies have reported the potential advantages of robotic surgery. However, only a few of them have featured the application of this surgery in patients with advanced rectal cancer undergoing neoadjuvant chemoradiation therapy (nCRT)...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28982208/comparing-pathological-complete-response-rate-using-oral-capecitabine-versus-infusional-5-fluorouracil-with-preoperative-radiotherapy-in-rectal-cancer-treatment
#8
Narotam Jootun, Tess Evans, Jackie Mak, Greg Makin, Cameron Platell
BACKGROUND: Infusional 5-fluorouracil (5-FU) has been the standard radiation sensitizer in patients undergoing preoperative long-course chemoradiotherapy (CRT) for locally advanced rectal cancer in Australia. Capecitabine (Xeloda) is an oral 5-FU prodrug of comparable pharmacodynamic activity, currently preferred in place of 5-FU infusion, its established counterpart in neoadjuvant CRT for rectal cancer. The few studies quantifying pathological complete response (pCR) of Xeloda versus 5-FU have produced inconsistent results...
October 5, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28978067/a-nomogram-predicting-pathological-complete-response-to-neoadjuvant-chemoradiotherapy-for-locally-advanced-rectal-cancer-implications-for-organ-preservation-strategies
#9
Yanwu Sun, Pan Chi, Huiming Lin, Xingrong Lu, Ying Huang, Zongbin Xu, Shenghui Huang, Xiaojie Wang
PURPOSE: To determine predictors of pathological complete response (pCR) in locally advanced rectal cancer patients treated with neoadjuvant chemoradiotherapy (nCRT), and develop a predictive nomogram. METHODS: A total of 522 locally advanced rectal cancer patients undergoing nCRT and curative resection between 2008 and 2014 were included. Uni- and multivariate analysis was performed to identify predictors of pCR. A nomogram was developed and validated by internal (n=425) and external validation (n=97)...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28974244/multiple-rapidly-growing-desmoid-tumors-that-were-difficult-to-distinguish-from-recurrence-of-rectal-cancer
#10
Koki Nakanishi, Dai Shida, Shunsuke Tsukamoto, Hiroki Ochiai, Junichi Mazaki, Hirokazu Taniguchi, Yukihide Kanemitsu
BACKGROUND: Intra-abdominal desmoid tumors are usually slow growing and solitary, but multifocal desmoid tumors develop on rare occasions. Diagnosing desmoid tumors before histological examination of a surgical biopsy is often difficult. In particular, if a patient has a prior history of malignancy, it may be difficult to differentiate between these lesions and disease recurrence or metastasis. CASE PRESENTATION: We present a rare case of multiple rapidly growing intra-abdominal desmoid tumors after surgical trauma, without familial adenomatous polyposis...
October 3, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28968036/-how-necessary-to-perform-neoadjuvant-chemoradiotherapy-for-rectal-cancer-in-geriatric-patients
#11
N A Maistrenko, V N Galkin, D V Erygin, A A Sazonov
A comparative analysis of the efficacy and safety of neoadjuvant chemoradiotherapy (CRT) in colorectal cancer patients older and younger than 60 years has been performed. It was determined that the risk of complications of neoadjuvant CRT, as well as the degree of its adverse effect on outcomes after surgical treatment, are not significant for the age of patients. However, the use of preoperative CRT in elderly patients is associated with a less significant increase in recurrence-free survival in comparison with younger patients...
2017: Advances in Gerontology, Uspekhi Gerontologii
https://www.readbyqxmd.com/read/28963744/factors-associated-with-low-anterior-resection-syndrome-after-surgical-treatment-of-rectal-cancer
#12
Luis Miguel Jimenez-Gomez, Eloy Espin-Basany, Loris Trenti, Marc Martí-Gallostra, José Luis Sánchez-García, Francesc Vallribera-Valls, Esther Kreisler, Sebastiano Biondo, Manuel Armengol-Carrasco
AIM: To assess factors independently associated with low anterior resection syndrome (LARS) following resection or rectal cancer. METHOD: Cross-sectional study carried out in two acute-care teaching hospitals in Barcelona, Spain. Patients who had undergone sphincter preserving low anterior resection with curative intent, with total or partial mesorectal excision (with and without protective ileostomy) between January 2001 and December 2009 completed a self-administered questionnaire to assess bowel dysfunction after rectal cancer surgery...
September 29, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28961836/late-toxicities-and-clinical-outcome-at-5%C3%A2-years-of-the-accord-12-0405-prodige-02-trial-comparing-two-neoadjuvant-chemoradiotherapy-regimens-for-intermediate-risk-rectal-cancer
#13
D Azria, J Doyen, M Jarlier, I Martel-Lafay, C Hennequin, P Etienne, V Vendrely, E François, G de La Roche, O Bouché, X Mirabel, B Denis, L Mineur, J Berdah, M Mahé, Y Bécouarn, O Dupuis, G Lledo, J Seitz, L Bedenne, S Gourgou-Bourgade, B Juzyna, T Conroy, J Gérard
Background: Outcome of intermediate risk rectal cancer may be improved by the addition of oxaliplatin during 5-fluoruracil concomitant neoadjuvant chemoradiotherapy. The purpose of this study is to analyze the main clinical results of the ACCORD12 trial (NCT00227747) in rectal cancer after 5 years of follow-up. Patients and methods: Inclusion criteria were as follows: rectal adenocarcinoma accessible to digital examination staged T3-T4 Nx M0 (or T2 Nx distal anterior rectum)...
October 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28959163/quantitative-aspects-of-diffusion-weighted-magnetic-resonance-imaging-in-rectal-cancer-response-to-neoadjuvant-therapy
#14
Thiago Bassaneze, José Eduardo Gonçalves, Juliano Ferreira Faria, Rogério Tadeu Palma, Jaques Waisberg
BACKGROUND: The aim of the study was to evaluate the added value of the apparent diffusion coefficient (ADC) of diffusion-weighted magnetic resonance imaging (DW-MRI) in patients with rectal cancer who received neoadjuvant chemoradiotherapy (CRT). The use of DW-MRI for response evaluation in rectal cancer still remains a widely investigated issue, as the accurate detection of pathologic complete response (pCR) is critical in making therapeutic decisions. PATIENTS AND METHODS: Thirty-three patients with locally advanced rectal cancer were evaluated retrospectively by MRI in addition to diffusion-weighted images (DWI) and its ADC pre- and post-neoadjuvant CRT...
September 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28959161/magnetic-resonance-imaging-evaluation-in-neoadjuvant-therapy-of-locally-advanced-rectal-cancer-a-systematic-review
#15
Roberta Fusco, Mario Petrillo, Vincenza Granata, Salvatore Filice, Mario Sansone, Orlando Catalano, Antonella Petrillo
BACKGROUND: The aim of the study was to present an update concerning several imaging modalities in diagnosis, staging and pre-surgery treatment response assessment in locally advanced rectal cancer (LARC). Modalities include: traditional morphological magnetic resonance imaging (MRI), functional MRI such as dynamic contrast enhanced MRI (DCE-MRI) and diffusion weighted imaging (DWI). A systematic review about the diagnostic accuracy in neoadjuvant therapy response assessment of MRI, DCE-MRI, DWI and Positron Emission Tomography/Computed Tomography (PET/CT) has been also reported...
September 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28939744/radiomics-analysis-for-evaluation-of-pathological-complete-response-to-neoadjuvant-chemoradiotherapy-in-locally-advanced-rectal-cancer
#16
Zhenyu Liu, Xiao-Yan Zhang, Yan-Jie Shi, Lin Wang, Hai-Tao Zhu, Zhen-Chao Tang, Shuo Wang, Xiao-Ting Li, Jie Tian, Ying-Shi Sun
PURPOSE: To develop and validate a radiomics model for evaluating pathological complete response (pCR) to neoadjuvant chemoradiotherapy in patients with locally advanced rectal cancer (LARC). EXPERIMENTAL DESIGN: We enrolled 222 patients (152 in the primary cohort and 70 in the validation cohort) with clinicopathologically confirmed LARC who received chemoradiotherapy before surgery. All patients underwent T2-weighted and diffusion-weighted imaging before and after chemoradiotherapy; 2252 radiomic features were extracted from each patient pre- and post-treatment imaging...
September 22, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28938543/predictive-clinical-model-of-tumor-response-after-chemoradiation-in-rectal-cancer
#17
Marisa D Santos, Cristina Silva, Anabela Rocha, Carlos Nogueira, Fernando Castro-Poças, António Araujo, Eduarda Matos, Carina Pereira, Rui Medeiros, Carlos Lopes
Survival improvement in rectal cancer treated with neoadjuvant chemoradiotherapy (nCRT) is achieved only if pathological response occurs. Mandard tumor regression grade (TRG) proved to be a valid system to measure nCRT response. The ability to predict tumor response before treatment may significantly have impact the selection of patients for nCRT in rectal cancer. The aim is to identify potential predictive pretreatment factors for Mandard response and build a clinical predictive model design. 167 patients with locally advanced rectal cancer were treated with nCRT and curative surgery...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938268/surgical-and-survival-outcomes-following-pelvic-exenteration-for-locally-advanced-primary-rectal-cancer-results-from-an-international-collaboration
#18
(no author information available yet)
OBJECTIVE: The aim of the study was to analyze data from an international collaboration, and ascertain prognostic indicators that inform clinical decision-making and practices regarding the role of pelvic exenteration for locally advanced primary rectal cancer (LARC). BACKGROUND: With improved national screening programs fewer patients present with LARC. Despite this, select cohorts of patients require pelvic exenteration. To date, the majority of outcome data are from single-center series...
September 21, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28934761/comparison-between-mri-and-pathology-in-the-assessment-of-tumour-regression-grade-in-rectal-cancer
#19
Francesco Sclafani, Gina Brown, David Cunningham, Andrew Wotherspoon, Larissa Sena Teixeira Mendes, Svetlana Balyasnikova, Jessica Evans, Clare Peckitt, Ruwaida Begum, Diana Tait, Josep Tabernero, Bengt Glimelius, Susana Roselló, Janet Thomas, Jacqui Oates, Ian Chau
BACKGROUND: Limited data exist regarding the correlation between MRI tumour regression grade (mrTRG) and pathological TRG (pTRG) in rectal cancer. METHODS: mrTRG and pTRG were compared in rectal cancer patients from two phase II trials (EXPERT and EXPERT-C). The agreement between radiologist and pathologist was assessed with the weighted κ test while the Kaplan-Meier method was used to estimate survival outcomes. RESULTS: One hundred ninety-one patients were included...
September 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28933018/-18-f-fluoromisonidazole-pet-in-rectal-cancer
#20
Tanuj Puri, Tessa A Greenhalgh, James M Wilson, Jamie Franklin, Lia Mun Wang, Victoria Strauss, Chris Cunningham, Mike Partridge, Tim Maughan
BACKGROUND: There is an increasing interest in developing predictive biomarkers of tissue hypoxia using functional imaging for personalised radiotherapy in patients with rectal cancer that are considered for neoadjuvant chemoradiotherapy (CRT). The study explores [(18)F]fluoromisonidazole ([(18)F]FMISO) positron emission tomography (PET) scans for predicting clinical response in rectal cancer patients receiving neoadjuvant CRT. METHODS: Patients with biopsy-proven rectal adenocarcinoma were imaged at 0-45 min, 2 and 4 h, at baseline and after 8-10 fractions of CRT (week 2)...
September 20, 2017: EJNMMI Research
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