keyword
MENU ▼
Read by QxMD icon Read
search

Rectum

keyword
https://www.readbyqxmd.com/read/28107554/inclusion-of-a-variable-rbe-into-proton-and-photon-plan-comparison-for-various-fractionation-schedules-in-prostate-radiation-therapy
#1
Jakob Ödén, Kjell Eriksson, Iuliana Toma-Dasu
PURPOSE: A constant relative biological effectiveness (RBE) of 1.1 is currently used in proton radiation therapy to account for the increased biological effectiveness compared to photon therapy. However, there is increasing evidence that proton RBE vary with the linear energy transfer (LET), the dose per fraction and the type of the tissue. Therefore, this study aims to evaluate the impact of disregarding variations in RBE when comparing proton and photon dose plans for prostate treatments for various fractionation schedules using published RBE models and several α/β assumptions...
January 20, 2017: Medical Physics
https://www.readbyqxmd.com/read/28106907/subsequent-malignancies-among-long-term-survivors-of-hodgkin-lymphoma-and-non-hodgkin-lymphoma-a-pooled-analysis-of-german-cancer-registry-data-1990-2012
#2
Nadia Baras, Stefan Dahm, Jörg Haberland, Martin Janz, Katharina Emrich, Klaus Kraywinkel, Abdulgabar Salama
The increased risk of subsequent primary malignancies (SPM) in survivors of adult-onset Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL) remains a challenging clinical problem worldwide. The German cancer registry database, pooled from 14 federal states, was used to calculate the standardized incidence ratio (SIR) and excess absolute risk (EAR) of SPM in 128 587 patients registered with first primary HL/NHL between 1990 and 2012. Conversely, SIRs were also calculated for a subsequent HL/NHL following other first cancers...
January 20, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28105622/-association-of-peripheral-nerve-invasion-with-clinicopathological-factors-and-prognosis-of-colorectal-cancer
#3
Dong Han, Ying Wei, Xidi Wang, Geng Wang, Yinggang Chen
OBJECTIVE: To investigate the association of peripheral nerve invasion (PNI) with clinicopathological factors and prognosis of colorectal cancer. METHODS: Clinicopathological data and Surgical specimens of 372 colorectal cancer patients who underwent radical resection from January 2011 to June 2012 in The Second Affiliated Hospital of Harbin Medical University were collected. Histopathological evaluation of tissue samples was conducted with hematoxylin and eosin-stained sections...
January 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28105621/-analysis-of-risk-factors-for-bone-metastasis-after-radical-resection-of-colorectal-cancer-within-5-years
#4
Ang Li, Zhen Tan, Chuangang Fu, Hao Wang, Jie Yuan
OBJECTIVE: To investigate the risk factors of metachronous bone metastasis after radical resection of colorectal cancer within 5 years. METHODS: Clinical data of 1 749 patients with colorectal cancer, of whom 50(2.8%) patients developed metastasis to bone after operation, in the Department of Colorectal Surgery, Changhai Hospital of The Second Military Medical University from January 2001 to December 2010 were analyzed retrospectively. Univariate and multivariate analysis were performed to find the risk factors of metachronous bone metastasis from colorectal cancer using Chi square test and Logistic regression, respectively...
January 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28104993/synchronous-quintuple-primary-gastrointestinal-tract-malignancies-case-report
#5
Soo-Hong Kim, Byung-Soo Park, Hyun Sung Kim, Jae Hun Kim
Multiple primary malignancy is defined as two or more malignancies detected in an individual person. In particular, synchronous quintuple primary malignancy is extremely rare. A 52-year-old male with anal pain and intermittent blood-tinged stool was diagnosed with malignancies in the stomach, jejunum, ascending colon, transverse colon and rectum. He underwent a subtotal gastrectomy, segmental resection of the jejunum and total protocolectomy with end ileostomy. The postoperative pathologic findings were moderate differentiated gastric adenocarcinoma (pT1bN0M0, pStageIA), combined adenocarcinoma and neuroendocrine carcinoma of the jejunum (pT3N0M0, pStageIIA), three mucinous adenocarcinoma of the ascending colon (pT3N0M0, pStageIIA), transverse colon (pT1N0M0, pStageI) and rectum (pT3N1aM0, pStageIIIB)...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28104632/visceral-hypersensitivity-is-associated-with-gi-symptom-severity-in-functional-gi-disorders-consistent-findings-from-five-different-patient-cohorts
#6
Magnus Simrén, Hans Törnblom, Olafur S Palsson, Miranda A L van Tilburg, Lukas Van Oudenhove, Jan Tack, William E Whitehead
OBJECTIVE: Our aim was to evaluate the association between visceral hypersensitivity and GI symptom severity in large cohorts of patients with functional GI disorder (FGID) and to adjust for psychological factors and general tendency to report symptoms. DESIGN: We included five cohorts of patients with FGIDs (IBS or functional dyspepsia; n=1144), who had undergone visceral sensitivity testing using balloon distensions (gastric fundus, descending colon or rectum) and completed questionnaires to assess GI symptom severity, non-GI somatic symptoms, anxiety and depression...
January 19, 2017: Gut
https://www.readbyqxmd.com/read/28103453/-analysis-of-the-cochrane-review-chromoscopy-versus-conventional-endoscopy-for-the-detection-of-polyps-in-the-colon-and-rectum-cochrane-database-syst-rev-2016-4-cd006439
#7
Diogo Libânio, Luís Filipe Azevedo
Although colonoscopy is considered the most accurate test for the investigation of colorectal polyps, lesions ≤ 10 mm may be missed in approximately 10%. Chromoscopy may increase the detection of colorectal polyps. A systematic review and meta-analysis was performed to investigate the benefit of cromoscopy in colorectal polyps detection. Seven randomized controlled trials were included (incuding 2,727 participants) comparing polyp detection (both neoplastic and non- neoplastic polyps) in patients submitted to conventional colonoscopy or colonoscopy with chromoscopy...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103261/significance-of-serum-total-oxidant-antioxidant-status-in-patients-with-colorectal-cancer
#8
Rong Wu, Jiafu Feng, Yuwei Yang, Chunmei Dai, Anyang Lu, Jie Li, Yao Liao, Miao Xiang, Qingmei Huang, Dong Wang, Xiao-Bo Du
Oxidative stress is involved in a variety of diseases. Prospective studies investigating the relationship between oxidative stress biomarkers and the status and development of colorectal cancer (CRC) are scarce; previous studies have failed to establish a relationship between the serum total oxidant/antioxidant status and CRC. Therefore, we compared the total serum oxidant/antioxidant levels of CRC patients and healthy subjects, and analyzed their clinical significance in the CRC. Fasting blood samples from 132 CRC patients and 64 healthy subjects were collected...
2017: PloS One
https://www.readbyqxmd.com/read/28102579/anatomical-organization-and-somatic-axonal-components-of-the-lumbosacral-nerves-in-female-rabbits
#9
Yolanda Cruz, Isela Hernández-Plata, Rosa Angélica Lucio, René Zempoalteca, Francisco Castelán, Margarita Martínez-Gómez
AIM: To determine the anatomical organization and somatic axonal components of the lumbosacral nerves in female rabbits. METHODS: Chinchilla adult anesthetized female rabbits were used. Anatomical, electrophysiological, and histological studies were performed. RESULTS: L7, S1, and some fibers from S2 and S3 form the lumbosacral trunk, which gives origin to the sciatic nerve and innervation to the gluteal region. From S2 to S3 originates the pudendal nerve, whose branches innervates the striated anal and urethra sphincters, as well as the bulbospongiosus, ischiocavernosus, and constrictor vulvae muscles...
January 19, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28097468/outcomes-of-primary-colorectal-sarcoma-a-national-cancer-data-base-ncdb-review
#10
Cornelius A Thiels, John R Bergquist, Adam C Krajewski, Hee Eun Lee, Heidi Nelson, Kellie L Mathis, Elizabeth B Habermann, Robert R Cima
INTRODUCTION: Primary colorectal sarcomas are a rare entity with anecdotally poor outcomes. We sought to inform surgeons, oncologists, and researchers of the characteristics and outcomes of these understudied and difficult-to-manage tumors. METHODS: The National Cancer Data Base (NCDB) was queried for patients with pathologically confirmed primary sarcoma of the colon or rectum (1998-2012). Gastrointestinal stromal tumors were excluded. Unadjusted overall survival was reported using the Kaplan-Meier method...
January 17, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28097082/a-review-of-colorectal-cancer-detection-modalities-stool-dna-and-fecal-immunochemistry-testing-in-adults-over-the-age-of-50
#11
REVIEW
Tyler Janz, Karen Lu, Michael R Povlow, Brittany Urso
Colorectal cancer (CRC) is the third leading cause of cancer death in the United States. Recently, more focus has been placed on developing effective screening tools to detect the presence of both precancerous and cancerous lesions present in the colon and rectum. Colonoscopy has been well established as the gold standard of the colon and rectal cancer screening. However, not all patients are willing to undergo a colonoscopy due to the procedure's invasive nature. Non-invasive screening methods have been developed to appeal to patients who refuse colonoscopy...
December 16, 2016: Curēus
https://www.readbyqxmd.com/read/28096975/a-prospective-survey-of-pseudomonas-aeruginosa-colonization-and-infection-in-the-intensive-care-unit
#12
Regev Cohen, Frida Babushkin, Shoshana Cohen, Marina Afraimov, Maurice Shapiro, Martina Uda, Efrat Khabra, Amos Adler, Ronen Ben Ami, Svetlana Paikin
BACKGROUND: Pseudomonas aeruginosa (PA) surveillance may improve empiric antimicrobial therapy, since colonizing strains frequently cause infections. This colonization may be 'endogenous' or 'exogenous', and the source determines infection control measures. We prospectively investigated the sources of PA, the clinical impact of PA colonization upon admission and the dynamics of colonization at different body sites throughout the intensive care unit stay. METHODS: Intensive care patients were screened on admission and weekly from the pharynx, endotracheal aspirate, rectum and urine...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28095874/clinicopathological-study-of-9-cases-of-prostate-cancer-involving-the-rectal-wall
#13
Tao Tang, Zhengduo Yang, Dan Zhang, Jie Qu, Guang Liu, Shiwu Zhang
BACKGROUND: Prostate cancer involving the rectal wall is rare and may lead to diagnostic pitfalls. CASE PRESENTATION: Out of 9504 patients with rectal tumors between January 2003 and January 2015, 9 patients (elderly with a mean age of 74 years) with prostate cancer involving the rectal wall were clinically misdiagnosed with rectal cancer. The lesions were located in the rectum, and included 3 circumferential rectal masses, 1 ulceration lesion, 1 crater-like mass, and 4 protruding lesions...
January 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28093701/cancer-incidence-in-spain-2015
#14
J Galceran, A Ameijide, M Carulla, A Mateos, J R Quirós, D Rojas, A Alemán, A Torrella, M Chico, M Vicente, J M Díaz, N Larrañaga, R Marcos-Gragera, M J Sánchez, J Perucha, P Franch, C Navarro, E Ardanaz, J Bigorra, P Rodrigo, R Peris Bonet
PURPOSE: Periodic cancer incidence estimates of Spain from all existing population-based cancer registries at any given time are required. The objective of this study was to present the current situation of cancer incidence in Spain. METHODS: The Spanish Network of Cancer Registries (REDECAN) estimated the numbers of new cancer cases occurred in Spain in 2015 by applying the incidence-mortality ratios method. In the calculus, incidence data from population-based cancer registries and mortality data of all Spain were used...
January 16, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28092017/transanal-total-mesorectal-excision-for-a-large-leiomyosarcoma-at-the-lower-rectum-a-case-report-and-literature-review
#15
Nobuaki Hoshino, Koya Hida, Kenji Kawada, Takaki Sakurai, Yoshiharu Sakai
BACKGROUND: Rectal leiomyosarcoma (LMS) is an extremely rare disease. Previously, LMS was not properly distinguishable from gastrointestinal stromal tumor (GIST) until c-kit, a characteristic marker of GIST, was discovered in 1998. No standard therapeutic strategy for gastrointestinal LMS has been established except for surgical resection because of its rarity. Rectal LMS is often accompanied by symptoms, which can enable detection at a small size. However, when a large LMS is detected at the lower rectum, it is difficult to excise due to the narrow pelvic space...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28091843/the-incidence-of-post-colonoscopy-colorectal-cancer-a-retrospective-long-term-cohort-study-using-a-colonoscopy-database
#16
Ayako Nakada, Ryota Niikura, Atsuo Yamada, Shuntaro Yoshida, Yoshihiro Hirata, Kazuhiko Koike
PURPOSE: The cumulative incidence of post-colonoscopy colorectal cancer remains unclear. Our aims were to estimate the incidence of and identify risk factors associated with post-colonoscopy colorectal cancer. METHODS: We conducted a retrospective cohort study using the colonoscopy database of the Department of Gastroenterology, the University of Tokyo Hospital Records from1995-2012. A cohort of 2544 patients, who received multiple colonoscopies without colorectal cancer findings at first colonoscopy, was selected...
January 14, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28091842/squamous-cell-dysplasia-in-the-proximal-rectum-of-three-patients-treated-for-ulcerative-colitis-on-immunomodulators
#17
James G Connolly, Stephen E Goldstone
BACKGROUND: Anal canal high-grade squamous intraepithelial lesion (HSIL) is the precursor to anal cancer. Immunocompromised patients are at increased risk and disease is usually within 3 cm from the anal verge. High-resolution anoscopy (HRA) with an 8-cm anoscope is used to identify and guide cautery treatment of HSIL. PURPOSE: We report three patients with a long-term history of ulcerative colitis (UC) treated with systemic immunomodulators who developed proximally located rectal HSIL...
January 13, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28091841/transumbilical-abdominal-incision-for-laparoscopic-colorectal-surgery-does-not-increase-the-risk-of-postoperative-surgical-site-infection
#18
Mizunori Yaegashi, Koki Otsuka, Toshimoto Kimura, Masanori Hakozaki, Megumu Kamishima, Tomoki Hatanaka, Kei Sato, Hitoshi Fujii, Teppei Matsuo, Akira Sasaki
PURPOSE: Besides antibiotic prophylaxis, antiseptic skin preparation is an important measure to prevent surgical site infection (SSI). No reports have detailed the relationship between SSI and umbilical microflora following laparoscopic colorectal cancer with a transumbilical longitudinal incision. METHODS: Risk factors and the rate of SSI were investigated in 453 patients who underwent laparoscopic colorectal resection over a 3-year period. Microbiological samples were collected from the umbilicus and SSI areas...
January 13, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28091385/research-on-laying-trichostrongylid-nematode-eggs-in-cows-in-the-periparturient-period
#19
Gencay Taşkın Taşçı, Aysel İtik Ekinci, Mükremin Özkan Arslan
OBJECTIVE: This study aimed to comparatively determine the prevalence of trichostrongylid nematodes and egg excretions in cows that are in the periparturient period (PPP) and pregnant cows in the non-periparturient period (NPPP). METHODS: Animal materials are constituted by cows in PPP and NPPP in 10 ranches in Kars and surrounding areas. Stool samples were collected from the rectum of 125 pregnant cows, which were in NPPP during November 2010 - January 2011 and from the same cows in PPP during April-May 2011...
December 2016: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/28089971/incidence-of-malignancy-prior-to-antineutrophil-cytoplasmic-antibody-associated-vasculitis-compared-to-the-general-population
#20
Emma E van Daalen, Chinar Rahmattulla, Ron Wolterbeek, Jan A Bruijn, Ingeborg M Bajema
OBJECTIVE: Previous studies have reported an increased malignancy risk preceding antineutrophil cytoplasmic antibody-associated vasculitis (AAV), suggesting common pathogenic pathways in these 2 entities. However, the study results were conflicting and often limited to patients with granulomatosis with polyangiitis (GPA). Here, we study the malignancy risk prior to AAV diagnosis [either GPA or microscopic polyangiitis (MPA)] to elaborate on the putative association between malignancy and AAV...
January 15, 2017: Journal of Rheumatology
keyword
keyword
4926
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"