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https://www.readbyqxmd.com/read/29932278/observation-of-complete-clinical-response-in-rectal-cancer-after-neoadjuvant-chemoradiation-the-flinders-experience
#1
Luigi A Sposato, Yick Lam, Chris Karapetis, Sina Vatandoust, Amitesh Roy, Paul Hakendorf, Andrew Dwyer, Dayan de Fontgalland, Paul Hollington, David Wattchow
AIM: Observation with close follow-up ("watch and wait") is a recognized treatment option in patients who achieve a complete clinical response to long course chemoradiotherapy. This review of a prospective database aims to evaluate the clinical outcomes among patients with a complete clinical response managed with observation. METHODS: A prospective study of 32 patients who achieved a complete clinical response was undertaken. The primary outcomes measured were overall and recurrence-free survival, and rate of organ preservation in patients who deferred immediate surgery...
June 22, 2018: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29928473/association-of-genetic-variants-in-atr-chek1-and-atm-chek2-pathway-genes-with-risk-of-colorectal-cancer-in-a-chinese-population
#2
Shijia Wang, Yue Zhang, Min Chen, Yong Wang, Yifei Feng, Ziwei Xu, Dongsheng Zhang, Yueming Sun, Zan Fu
Objective: The ATR-CHEK1 and ATM-CHEK2 pathway have been confirmed to be related with the DNA damage response (DDR). Many studies have reported that genetic variants in ATR/CHEK1 and ATM/CHEK2 are associated with cancer risk. However, the association between genetic variants in ATR-CHEK1, ATM-CHEK2 pathway genes and colorectal cancer susceptibility is still unknown. In this study, we aim to explore whether these variants are correlated with the risk of colorectal cancer in a Chinese population...
June 1, 2018: Oncotarget
https://www.readbyqxmd.com/read/29928061/coding-variants-in-nod-like-receptors-an-association-study-on-risk-and-survival-of-colorectal-cancer
#3
Stefanie Huhn, Miguel I da Silva Filho, Tharmila Sanmuganantham, Tica Pichulik, Calogerina Catalano, Barbara Pardini, Alessio Naccarati, Veronika Polakova-Vymetálkova, Katerina Jiraskova, Ludmila Vodickova, Pavel Vodicka, Markus W Löffler, Lioba Courth, Jan Wehkamp, Farhat V N Din, Maria Timofeeva, Susan M Farrington, Lina Jansen, Kari Hemminki, Jenny Chang-Claude, Hermann Brenner, Michael Hoffmeister, Malcolm G Dunlop, Alexander N R Weber, Asta Försti
Nod-like receptors (NLRs) are important innate pattern recognition receptors and regulators of inflammation or play a role during development. We systematically analysed 41 non-synonymous single nucleotide polymorphisms (SNPs) in 21 NLR genes in a Czech discovery cohort of sporadic colorectal cancer (CRC) (1237 cases, 787 controls) for their association with CRC risk and survival. Five SNPs were found to be associated with CRC risk and eight with survival at 5% significance level. In a replication analysis using data of two large genome-wide association studies (GWASs) from Germany (DACHS: 1798 cases and 1810 controls) and Scotland (2210 cases and 9350 controls) the associations found in the Czech discovery set were not confirmed...
2018: PloS One
https://www.readbyqxmd.com/read/29927331/low-versus-high-risk-rectal-cancer-based-on-mri-features-outcomes-in-patients-treated-without-neoadjuvant-chemoradiotherapy
#4
Xiao-Xuan Jia, Yi Wang, Jin Cheng, Xun Yao, Mu-Jun Yin, Jing Zhou, Ying-Jiang Ye
OBJECTIVE: The objective of this study was to compare the prognoses of patients with low- and high-risk rectal cancer detected by MRI who were treated without neoadjuvant chemoradiotherapy (NCRT) and to determine independent risk factors. MATERIALS AND METHODS: This retrospective study included 185 patients with pathologically proven rectal adenocarcinoma who were treated without NCRT. Cancer was defined as high risk if one or more of the following factors were present: extramural depth of tumor invasion greater than 5 mm or stage T4a or T4b for tumor in the mid or high rectum; involvement of intersphincteric space, levators, or adjacent organs for tumor in the low rectum; extramural venous invasion (EMVI); or circumferential resection margin (CRM) involvement...
June 21, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29923854/ghost-ileostomy-in-advanced-ovarian-cancer-a-reliable-option
#5
Víctor Lago, Blas Flor, Luis Matute, Pablo Padilla-Iserte, Alvaro García-Granero, Marco Bustamante, Santiago Domingo
OBJECTIVE: Diverting ileostomy (DI) has been proposed to reduce the incidence and consequences anastomotic leakage after bowel resection. In colorectal cancer treatment, ghost ileostomy (GI) has been proposed as an alternative to DI. Our objective was to report the results of GI associated with colorectal resection in the treatment of ovarian cancer. MATERIALS AND METHODS: This is an observational pilot study performed in a single institution. The main objective sought was to report the results of GI associated with colorectal resection in the treatment of ovarian cancer: 26 patients were included...
June 19, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29917325/introduction-of-the-colorectal-cancer-screening-program-results-from-a-single-centre-study
#6
Nina C A Vermeer, Renu R Bahadoer, Esther Bastiaannet, Fabian A Holman, Elma Meershoek-Klein Kranenbarg, Gerrit-Jan Liefers, Cornelis J H van de Velde, Koen C M J Peeters
AIM: In 2014, a national colorectal cancer (CRC) screening program was launched in the Netherlands. It is difficult to assess for the individual CRC patient whether the oncological benefits of surgery will outweigh the morbidity of the procedure, especially in early lesions. This study compares patient and tumour characteristics between screen-detected and non-screen-detected patients. Secondly, we present an overview of treatment options and clinical dilemmas when treating patients with early stage colorectal disease...
June 19, 2018: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29916871/a-multicenter-matched-comparison-of-transanal-and-robotic-total-mesorectal-excision-for-mid-and-low-rectal-adenocarcinoma
#7
Lawrence Lee, Borja de Lacy, Marcos Gomez Ruiz, Alexander Sender Liberman, Matthew R Albert, John R T Monson, Antonio Lacy, Seon Hahn Kim, Sam B Atallah
OBJECTIVE: To compare the quality of surgical resection of transanal total mesorectal excision (TA-TME) and robotic total mesorectal excision (R-TME). BACKGROUND: Both TA-TME and R-TME have been advocated to improve the quality of surgery for rectal cancer below 10 cm from the anal verge, but there are little data comparing TA-TME and R-TME. METHODS: Data of patients undergoing TA-TME or R-TME for rectal cancer below 10 cm from the anal verge and a sphincter-saving procedure from 5 high-volume rectal cancer referral centers between 2011 and 2017 were obtained...
June 18, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29915739/awareness-of-colorectal-cancer-among-public-in-asir-region
#8
Mohammad Nassir Al-Sharif, Khalid Ali Fayi, Abdulsalam Ali Alobaidi, Bader Awadh Alshamrani
Introduction: Colorectal cancer (CRC) has different forms of colon cancer or rectal cancer. CRCs are often considered together because they possess many similar features. A severe form of the disease with higher mortality rate increases with increase in age. The most common CRC risk factors include smoking, diabetes, and obesity. This study aims to evaluate the awareness of CRC in a random population of Asir region and to identify the subpopulation that can be recipients of awareness and screening programs...
January 2018: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29911510/mixed-adenoneuroendocrine-carcinoma-of-the-colon-and-rectum
#9
S Qiu, G Pellino, O J Warren, S Mills, R Goldin, C Kontovounisios, P P Tekkis
Mixed adenoneuroendocrine carcinoma (MANEC) are rare cancers of the gastrointestinal (GI) and pancreatobiliary tract. They are characterized by the presence of a combination of epithelial and neuroendocrine elements, where each component represents at least 30% of the tumour. Review of literature and consolidation of clinicopathological data. Sixty-one cases of colorectal MANEC have been reported in literature and one seen in this centre. The median age of the patients affected was 61.9 ± 12.4 years (20-94 years)...
June 17, 2018: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/29909745/professor-william-wayne-babcock-1872-1963-and-his-innovations-in-surgery
#10
Konstantinos Laios
Professor William Wayne Babcock (1872-1963) is considered as a leading figure of American surgery during early 20th century. He introduced many innovative surgical techniques such as Babcock operation for the treatment of varicose veins, the Babcock-Bacon operation for the treatment of cancer of the rectum and sigmoid colon preserving anal sphincters, the "soup bone" cranioplasty technique, and the nerve disassociation technique for the relief of certain forms of paralysis or parasthesia due to injury or inflammation...
June 1, 2018: Surgical Innovation
https://www.readbyqxmd.com/read/29901698/association-of-dietary-insulinemic-potential-and-colorectal-cancer-risk-in-men-and-women
#11
Fred K Tabung, Weike Wang, Teresa T Fung, Stephanie A Smith-Warner, NaNa Keum, Kana Wu, Charles S Fuchs, Frank B Hu, Edward L Giovannucci
Background: Insulin response may be important in colorectal cancer development. Diet modulates insulin response and may be a modifiable factor in colorectal cancer prevention. Objective: We examined associations between hyperinsulinemic diets and colorectal cancer risk with the use of an empirical dietary index for hyperinsulinemia (EDIH), a food-based index that characterizes dietary insulinemic potential on the basis of circulating C-peptide concentrations. Design: Diet was assessed every 4 y with food-frequency questionnaires in 46,210 men (Health Professionals Follow-Up Study, 1986-2012) and 74,191 women (Nurses' Health Study, 1984-2012) to calculate EDIH scores...
June 12, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29897392/representation-of-obese-participants-in-obesity-related-cancer-randomized-trials
#12
E Pestine, A Stokes, L Trinquart
Background: Obesity is a risk factor for numerous cancer types, and may influence cancer treatment outcomes. Underrepresentation of obese patients in obesity-related cancer randomized controlled trials (RCTs) may affect generalizability of results. We aimed to assess the reporting of information about eligibility and enrollment of obese participants in obesity-related cancer RCTs. Methods: We conducted a systematic review of RCTs of 10 obesity-related cancer types (esophagus, colon/rectum, liver, gallbladder, pancreas, postmenopausal breast, endometrium, ovary, kidney, and thyroid cancer)...
April 20, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29896400/carcinoma-in-the-residual-rectum-of-a-long-standing-crohn-s-disease-patient-following-subtotal-colectomy-a-case-report
#13
Kazuaki Shibuya, Shigenori Homma, Tadashi Yoshida, Yosuke Ohno, Nobuki Ichikawa, Hideki Kawamura, Teppei Imamoto, Yoshihiro Matsuno, Akinobu Taketomi
The development of colorectal cancer in long-standing Crohn's disease (CD) patients has become a major complication. Therapeutic guidelines for CD-associated cancer (CDAC) have already been established in Western countries; however, specific guidelines are not currently available in Japan. Surveillance of the residual intestine for cancer screening is important for long-standing CD patients. The present case report describes the occurrence of rectal carcinoma in a patient with a 25-year history of CD. A 37-year-old male with a 17-year history of CD underwent semi-emergent subtotal colectomy and ileostomy for bowel obstruction secondary to the transverse colon stenosis, and multiple severe stenosis and inflammation...
July 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29894583/prognostic-value-and-characteristics-of-n1c-colorectal-cancer
#14
Morgane Bouquot, Ben Creavin, Nicolas Goasguen, Najim Chafai, Emmanuel Tiret, Thierry André, Jean-Francois Flejou, Yann Parc, Jérémie H Lefevre, Magali Svrcek
The presence of tumor deposits (TD) in colorectal cancer (CRC) is associated with poor prognosis. The 7th edition of TNM subclassified a new nodal stage, N1c, characterized by the presence of TD without any concurrent positive lymph node (LN). It is not clear if the N1c category is equal or not to LN metastasis. We aimed to examine the prevalence, characteristics and prognostic significance of this new subcategory METHODS: Consecutive patients who underwent surgery for CRC in two centers (2011-2014) were analyzed...
June 12, 2018: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29892149/a-preliminary-study-on-the-estimation-of-the-number-of-cancer-patients-eligible-for-hadron-therapy-in-iran-and-fars-province
#15
Mohammad Amin Hosseini, Mohammad Mohamadianpanah, Mohammad Zare-Bandeamiri, Mohammad Amin Mosleh-Shirazi
Hadron therapy (HT) with protons and carbon ions is an advanced radiotherapy technique. As the first report addressing this topic, the present study aimed to estimate the number of patients eligible for HT in Fars province and the whole of Iran. The data were collected through direct inspection of medical records of the patients treated at the Radiotherapy Department, Namazi Hospital, Shiraz, Iran in 2014. The patients who were treated with external-beam radiotherapy and declared to be a resident of Fars province were extracted from the medical records...
May 2018: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29887698/outcomes-of-computed-tomography-guided-image-based-interstitial-brachytherapy-for-cancer-of-the-cervix-using-gec-estro-guidelines
#16
Karthik S Rishi, Ram Charith Alva, Amrit Raghav Kadam, Sanjiv Sharma
Locally advanced cancer of the cervix is treated by concurrent chemoradiation followed by brachytherapy. Interstitial brachytherapy is used to treat large tumors with involvement of parametrium, post-hysterectomy, and narrow, conical vagina. The GYN GEC-ESTRO working group described target volume delineation and also 3D image-based planning using MRI and 3D dose-volume parameters for brachytherapy of carcinoma cervix. CT-based as compared to MR-based image-guided brachytherapy (IGBT) is much more feasible and practical because MR access is still difficult for most departments...
June 2018: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29885745/late-toxicity-in-the-randomized-multicenter-hypro-trial-for-prostate-cancer-analyzed-with-automated-treatment-planning
#17
Abdul Wahab M Sharfo, Maarten L P Dirkx, Rik G Bijman, Wilco Schillemans, Sebastiaan Breedveld, Shafak Aluwini, Floris Pos, Luca Incrocci, Ben J M Heijmen
PURPOSE/OBJECTIVE: Assess to what extent the use of automated treatment planning would have reduced organ-at-risk dose delivery observed in the randomized HYPRO trial for prostate cancer, and estimate related toxicity reductions. Investigate to what extent improved plan quality for hypofractionation scheme as achieved with automated planning can potentially reduce observed enhanced toxicity for the investigated hypofractionation scheme to levels observed for conventional fractionation scheme...
June 6, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29884570/colorectal-cancer-survival-at-an-oncologic-center-in-colombia-a-historic-cohort-study
#18
S M Campo-Sánchez, J Camargo-Trillos, J A Calle-Ramírez, L R Gómez-Wolff, L A Sánchez-Patiño, H I García-García
INTRODUCTION AND AIMS: In Colombia, cancer of the colon is the third most frequent cancer in relation to incidence and mortality. Five-year survival depends on stage at diagnosis, albeit that rate is not known for the country. The aim of the present study was to characterize the overall survival and disease-free survival rates in an adult population with colorectal cancer treated at an oncology center in Medellín, Colombia. MATERIALS AND METHODS: A retrospective cohort study was conducted...
June 5, 2018: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/29882196/prone-positioning-on-a-belly-board-decreases-rectal-and-bowel-doses-in-pelvic-intensity-modulated-radiation-therapy-imrt-for-prostate-cancer
#19
Renáta Kószó, Linda Varga, Emese Fodor, Zsuzsanna Kahán, Adrienne Cserháti, Katalin Hideghéty, Zsófia Együd, Csilla Szabó, Emőke Borzási, Dorottya Szabó, Kitti Müllner, Zoltán Varga, Anikó Maráz
The presence of normal tissues in the irradiated volume limits dose escalation during pelvic radiotherapy (RT) for prostate cancer. Supine and prone positions on a belly board were compared by analyzing the exposure of organs at risk (OARs) using intensity modulated RT (IMRT). The prospective trial included 55 high risk, localized or locally advanced prostate cancer patients, receiving definitive image-guided RT. Computed tomography scanning for irradiation planning was carried out in both positions. Gross tumor volume, clinical and planning target volumes (PTV) and OARs were delineated, defining subprostatic and periprostatic rectal subsegments...
June 7, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29878953/robotic-platform-for-an-ipaa
#20
Amy L Lightner, Scott R Kelley, David W Larson
INTRODUCTION: An IPAA is the preferred operative approach for restoration of intestinal continuity in patients with ulcerative colitis and familial adenomatous polyposis. As minimally invasive approaches have become more widely adopted, their use in IPAA has also become increasingly commonplace. Laparoscopy has the same limitations during the proctectomy portion as seen in operations for rectal cancer, including dissection in the mid-to-lower rectum attributed to angles created by bony confines of the deep pelvis and lack of visibility when constructing the anastomosis...
July 2018: Diseases of the Colon and Rectum
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