为什么要做纤维乙状结肠镜检查?
比较以软式乙状结肠镜与粪便潜血检查进行筛检或不筛检的随机对照试验。
Randomised controlled trials comparing screening with flexible sigmoidoscopy or faecal occult blood testing to each other or to no screening.
乙状结肠镜检可能可以检测出27.3%由结肠镜检发现的基底部恶性肿瘤。
FS would have detected 27.3% of the proximal advanced neoplasms detected at TC.
结果表明，乙状结肠镜使结直肠癌的发病率和死亡率分别降低了23%和31%。
The results indicate that flexible sigmoidoscopy reduces cancer incidence and mortality by 23% and 31%, respectively.
结论：乙状结肠镜直视下给药为一有效、简便、安全的治疗溃疡性直肠乙状结肠炎的方法。
Conclusions Drug treatment through sigmoidoscope is a effective, safe a nd convenient therapeutic way for ulcerative colitis.
毕竟，反对者会认为，软式乙状结肠镜无法检查右半结肠，而近三分之一的肿瘤发生在此部位。
After all, opponents will argue that flexible sigmoidoscopy is unable to examine the right colon, where nearly a third of the cancers arise.
完成结肠镜所需的额外时间和结肠镜检查相对于软式乙状结肠镜检查的额外费用在这种情况下仍需要评价。
The additional time required to complete the colonoscopy and the additional costs of a colonoscopy versus flexible sigmoidoscopy in such circumstances require evaluation.
假设结肠镜检和乙状结肠镜检有相同的分享率，为检测额外的乙状结肠镜检遗漏的1例恶性肿瘤，48次结肠镜检需要被进行。
Assuming the same participation rate at TC as at FS, 48 TCs would be necessary to detect 1 additional advanced neoplasm missed by FS.
为检测1例恶性肿瘤，可能需要邀请264位患者进行大便潜血试验，或者60例进行乙状结肠镜检，或者53例患者进行结肠镜检。
To detect 1 advanced neoplasm, it would be necessary to invite 264 people with FIT, 60 with FS, 53 with TC.
尽管只有2.7%的病人等待这么长时间，这些病人中有8.6%是等待结肠镜检查，8%是等待乙状结肠镜检查以及其他癌症诊断检查。
While only 2.7% of patients wait this long, the figure is 8.6% for those awaiting a colonoscopy and 8% for flexible sigmoidoscopy, another test for cancer.
同样，等待6周以上接受乙状结肠镜检查的病人数量由87猛增至1199，在同时期内等待心脏超声检查的病人数量由574增加到了2034。
Similarly, the number waiting past six weeks for flexible sigmoidoscopy has jumped from 87 to 1,199, and those waiting for echocardiography from 574 to 2,034 over the same period.
同样，等待6周以上接受乙状结肠镜检查的病人数量由87猛增至1199，在同时期内等待心脏超声检查的病人数量由574增加到了2034。
Similarly, the number waiting past six weeks for flexible sigmoidoscopy has jumped from 87 to 1,199, and those waiting for echocardiography from 574 to 2,034 over the same period.
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