نتایج جستجو برای: sigmoidoscopy
تعداد نتایج: 1183 فیلتر نتایج به سال:
Colorectal cancer (CRC) is the third most common form of cancer and the second leading cause of cancer death in the Western world. Presently, screening tools such as colonoscopy, sigmoidoscopy, fecal occult blood test (FOBT) and computed tomographic colonography (CTC) are available for CRC screening. The debate over which screening tool is most effective in detecting CRC and precancerous lesion...
Over a 25-month period, we prospectively evaluated 36 patients with symptomatic human immunodeficiency virus disease (including 27 with unexplained chronic diarrhea) by flexible sigmoidoscopy for the presence of Campylobacter-like organisms. No Campylobacter-like organisms were isolated. Campylobacter-like organisms appear to be an uncommon cause of idiopathic chronic diarrhea in symptomatic hu...
BACKGROUND & AIMS General practitioners (GPs) in the Netherlands have open access to flexible sigmoidoscopy (FS) for patients with lower gastrointestinal symptoms, but not to colonoscopy. This study was performed to investigate the yield of FS in GP-referred patients, to evaluate the proportion of patients in whom additional colonoscopy was performed and to investigate whether there was a subgr...
BACKGROUND Endoscopic colorectal cancer (CRC) screening is currently implemented in many countries. Since endoscopes cannot be sterilised, the transmission of infectious agents through endoscopes has been a matter of concern. We report on a continuous quality control programme in a large-scale randomised controlled trial on flexible sigmoidoscopy screening of an average-risk population. Continu...
OBJECTIVES To assess the demographic and psychological mediators of gender differences in uptake of flexible sigmoidoscopy (FS) screening for colorectal cancer. SETTING A subsample (n=5462) from a large community trial of FS in the UK. METHODS Men and women randomized to screening as part of the UK Flexible Sigmoidoscopy Trial were sent a postal questionnaire assessing demographic character...
INTRODUCTION Colorectal cancer (CRC) is the second leading cause of cancer deaths in the United States and the third most common malignant neoplasm worldwide. Chinese Americans are one of the ethnic minority groups who have the lowest rates of CRC screening. The purpose of this study was to describe CRC screening among less acculturated Chinese Americans and to identify factors associated with ...
Of 111 carcinomas developing in 73 patients with ulcerative colitis, 46 (41.5%) arose in the rectum where they are directly accessible to sigmoidoscopy. Fifty-eight per cent of single carcinomas developed in the rectum. The extent and frequency of rectal dysplasia was assessed by examining slides of rectal mucosa with an eyepiece micrometer. Slides from 46 patients with carcinoma and 22 patient...
Mounting evidence shows that colorectal screening reduces cancer incidence and mortality, but scientists still disagree about the best way to look for risky polyps. Clinicians in the US favor colonoscopy, while European health systems rely far more on flexible sigmoidoscopy–a cheaper, less invasive method that can be performed without sedation, but that also reaches only into the distal or “lef...
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