摘要目的 评判内镜下直肠异常隐窝病灶(ACF)与结肠病变及高癌变潜能肿瘤(AN)的关系.方法 接受全结肠镜检查的正常、息肉、腺瘤及癌的患者212例,在退镜时用0.4%靛胭脂对直肠进行染色,根据直肠ACF的数目对患者分级,无ACF者为0级,ACF数目为1～4,5～9,≥10者分别为Ⅰ、Ⅱ、Ⅲ级,统计分析ACF级别与结肠病变(息肉、腺瘤和癌),高癌变潜能肿瘤(≥1 cm,绒毛状、管状绒毛状,高度异型增生或浸润癌)的关系.结果 212例患者中,72例直肠ACF为0级,48例为Ⅰ级,41例为Ⅱ级,51例为Ⅲ级.直肠有ACF(包括Ⅰ、Ⅱ、Ⅲ级)的患者发生结肠病变及结肠高癌变潜能肿瘤的概率较无ACF者明显升高,其OR值(95%CI)分别为22.352(6.716～74.395),7.982(1.838～34.672).结论 直肠ACF对结肠病变及高癌变潜能肿瘤有预示作用.

abstractsObjective To evaluate the relationship between endoscopic rectal aberrant crypt foci (ACF) and colon neoplasm, including lesions with high risk of aggressive progression (adenoma with diameter ≥ 1cm, villus adenoma, tubular-villus adenoma, adenoma of high grade dysplasia, or cancer). Methods The rectum of 212 patients who underwent colonoscopy was stained by 0. 4% indigo armine, and the patient was classified into different grade according to the number of rectal ACF, namely Grade 0 as no ACF, Grade Ⅰ as 1-4, Grade Ⅱ as 5-9 and Grade Ⅲ as more than 10. The correlation between rectal ACF grade and colon lesions was analyzed. Results Of 212 patients, 72 were classified as Grade 0, 48 as Grade Ⅰ , 41 as Grade Ⅱ, and 51 as Grade Ⅲ. The detection rate of colon neoplasm and lesions with high risk of aggressive progression in patients with rectal ACF were significantly higher than that in patients without rectal ACF (OR at 95% CI was 22. 352 (6. 716 -74. 395) and 7. 982 ( 1. 838-34. 672), respcetively). Conclusion Rectal ACF may predict the detection of colon lesions, including those with high risk of aggressive progression.