BACKGROUND AND AIMS Devices for flattening colon folds can improve polyp detection at colonoscopy. However, there are few data on the endoscopic ring-fitted cap (EndoRings; EndoAid, Caesarea, Israel). We sought to compare adenoma detection with EndoRings with that of standard high-definition colonoscopy. METHODS This was a single-center, randomized controlled trial of 562 patients (284 randomized to EndoRings and 278 to standard colonoscopy) at 2 outpatient endoscopy units in the Indiana University Hospital system. Adenoma detection was the primary outcome measured as adenoma detection rate (ADR) and adenomas per colonoscopy (APC). We also compared sessile serrated polyp detection rate, insertion times, withdrawal times, and ease of passage through the sigmoid colon. RESULTS EndoRings was superior to standard colonoscopy in terms of APC (1.46 vs 1.06, P = .025), but there were no statistically significant differences in ADR or sessile serrated polyp detection rate. Mean withdrawal time (in patients with no polyps) was shorter and insertion time (all patients) was longer in the EndoRings arm by 1.8 minutes and 0.75 minutes, respectively. One provider had significantly higher detection with Endo-Rings and contributed substantially to the overall results. CONCLUSIONS EndoRings can increase adenoma detection without a significant increase in procedure time, but the effect varies between operators. The use of EndoRings slows colonoscope insertion. (Clinical trial registration number: NCT03418662.).

中文翻译：

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戴环帽对插入时间和腺瘤检测的影响：一项随机对照试验。

背景和目的用于使结肠褶皱变平的装置可以改善结肠镜检查时的息肉检测。但是，有关内窥镜安装环帽（EndoRings； EndoAid，凯撒利亚，以色列）的数据很少。我们试图将EndoRings与标准高清结肠镜检查的腺瘤检测进行比较。方法这是在印第安纳大学医院系统的2个门诊内窥镜检查单元中对562例患者（284例随机分配给EndoRings和278例标准结肠镜检查）进行的单中心随机对照试验。腺瘤检测是主要结果，以腺瘤检出率（ADR）和每个结肠镜检查腺瘤（APC）来衡量。我们还比较了无柄锯齿状息肉的检出率，插入时间，停药时间和通过乙状结肠的难易程度。结果就APC而言，EndoRings优于标准结肠镜检查（1。（46 vs. 1.06，P = .025），但是ADR或无柄锯齿状息肉检出率没有统计学上的显着差异。EndoRings臂的平均撤药时间（无息肉患者）较短，插入时间（所有患者）较长，分别为1.8分钟和0.75分钟。一名医疗提供者使用Endo-Rings的检测率明显更高，并为整体结果做出了重大贡献。结论EndoRings可以增加腺瘤的检出率，而不会显着增加手术时间，但是不同操作者的效果有所不同。使用EndoRings会减慢结肠镜的插入速度。（临床试验注册号：NCT03418662。）。EndoRings臂的平均撤药时间（无息肉患者）较短，插入时间（所有患者）较长，分别为1.8分钟和0.75分钟。一名医疗提供者使用Endo-Rings的检测率明显更高，并为整体结果做出了重大贡献。结论EndoRings可以增加腺瘤的检出率，而不会显着增加手术时间，但是不同操作者的效果不同。使用EndoRings会减慢结肠镜的插入速度。（临床试验注册号：NCT03418662。）。EndoRings臂的平均撤药时间（无息肉患者）较短，插入时间（所有患者）较长，分别为1.8分钟和0.75分钟。一名医疗提供者使用Endo-Rings的检测率明显更高，并为整体结果做出了重大贡献。结论EndoRings可以增加腺瘤的检出率，而不会显着增加手术时间，但是不同操作者的效果不同。使用EndoRings会减慢结肠镜的插入速度。（临床试验注册号：NCT03418662。）。结论EndoRings可以增加腺瘤的检出率，而不会显着增加手术时间，但是不同操作者的效果有所不同。使用EndoRings会减慢结肠镜的插入速度。（临床试验注册号：NCT03418662。）。结论EndoRings可以增加腺瘤的检出率，而不会显着增加手术时间，但是不同操作者的效果有所不同。使用EndoRings会减慢结肠镜的插入速度。（临床试验注册号：NCT03418662。）。