Baumann U A
Medical Clinic, Bezirksspital, Oberdiessbach, Switzerland.
Endoscopy. 1999 May;31(4):314-7. doi: 10.1055/s-1999-23.
Rapid passage through the sigmoid and descending colon is important during flexible colonoscopy, and colonoscopists have developed several techniques and tricks for achieving this. The present study was designed to explore the effect of instilling 200 ml of water into the first bend of the sigmoid on the speed of passage of the endoscope from the rectum to the left colonic (splenic) flexure.
A prospective study of 100 successive single-handed colonoscopies was carried out, using randomly either the water intubation technique (50 patients) or the traditional method (50 controls) to compare the time needed to pass the endoscope from the rectum to the left colonic flexure.
The results indicate that water intubation allowed the endoscope to be advanced through the sigmoid and descending colon in a median time (fiftieth percentile) of 154.5 seconds, compared to 223.5 seconds using the traditional technique. Water intubation speeds up the insertion time by 31%. This difference was highly significant statistically (P<0.0001). The difference remained significant when the data for men and women were analyzed separately. There was no statistically significant difference in the formation of N loops, or in incidentally formed alpha loops between the two study groups.
The water intubation technique is more efficient than the traditional method, particularly in difficult left-sided colonoscopies, but it is equally safe.
在可弯曲结肠镜检查过程中，快速通过乙状结肠和降结肠很重要，并且结肠镜检查医师已经开发出多种实现此目的的技术和技巧。本研究旨在探讨在乙状结肠第一个弯曲处注入200毫升水对内镜从直肠到达左结肠（脾）曲速度的影响。
对连续100例单人结肠镜检查进行前瞻性研究，随机采用注水技术（50例患者）或传统方法（50例对照），比较内镜从直肠到达左结肠曲所需的时间。
结果表明，注水技术使内镜通过乙状结肠和降结肠的中位时间（第50百分位数）为154.5秒，而传统技术为223.5秒。注水技术使插入时间加快了31%。这一差异在统计学上具有高度显著性（P<0.0001）。当分别分析男性和女性的数据时，差异仍然显著。两个研究组在N襻形成或偶然形成的α襻方面没有统计学上的显著差异。
注水技术比传统方法更有效，尤其是在困难的左侧结肠镜检查中，但同样安全。
