نتایج جستجو برای: sigmoidoscopy
تعداد نتایج: 1183 فیلتر نتایج به سال:
Colorectal cancer is the second leading cause of death from cancer in the U.S., behind lung cancer. Numerous medical societies recommend routine screening for colorectal cancer with flexible sigmoidoscopy for people 50 and over. But who will perform the procedure, and who will pay for it? The case of flexible sigmoidoscopy illustrates the economic and practical issues of introducing a screening...
BACKGROUND Although colorectal cancer screening is cost-effective, it requires a considerable net investment by governments or insurance companies. If screening was cost saving, governments and insurance companies might be more inclined to invest in colorectal cancer screening programs. We examined whether colorectal cancer screening would become cost saving with the widespread use of the newer...
Cesarean section (C/S) is one of the most commonly undertaken operations e no fewer than 18.5 million C/S are annually performed worldwide. However, the high rate of C/S births has become a global public health concern. Taiwan has one of the highest rates of C/S births, comprising approximately 33% of all births over the last 10 years. In this issue, a team of investigators from Kaohsiung Veter...
BACKGROUND Colonoscopy and sigmoidoscopy provide protection against colorectal cancer, but the magnitude and duration of protection, particularly against cancer of the proximal colon, remain uncertain. METHODS We examined the association of the use of lower endoscopy (updated biennially from 1988 through 2008) with colorectal-cancer incidence (through June 2010) and colorectal-cancer mortalit...
BACKGROUND Family practice residencies offer training in flexible sigmoidoscopy; however, there are no objective recommendations for determining competency in learners. We describe a longitudinal study designed to determine the mean procedure time and depth of insertion for family practice residents. METHODS During a 21-month period, data were collected for 421 patients undergoing flexible si...
BACKGROUND Although the risk of bowel perforation is often cited as a major factor in the choice between colonoscopy and sigmoidoscopy for colorectal screening, good estimates of the absolute and relative risks of perforation are lacking. METHODS We used a large population-based cohort that consisted of a random sample of 5% of Medicare beneficiaries living in regions of the United States cov...
OBJECTIVES To review, summarise, and compare the evidence for effectiveness of screening sigmoidoscopy and screening colonoscopy in the prevention of colorectal cancer occurrence and deaths. DESIGN Systematic review and meta-analysis of randomised controlled trials and observational studies. DATA SOURCES PubMed, Embase, and Web of Science. Two investigators independently extracted character...
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