Effectiveness of Water-Assisted Colonoscopy without Sedation in Patients with Ulcerative Colitis

Author:

Shi Haitao,Zeng HongORCID,Wang Mei,Jiang Jiong,Sha Sumei,Chen Fenrong,Wang Yan,Cheng Yan,Ma Shiyang,Liu Xin

Abstract

<b><i>Background:</i></b> Studies have found that water-assisted colonoscopy (WAC) including water immersion colonoscopy (WIC) and water exchange colonoscopy (WEC) is superior to air insufflation colonoscopy (AIC) in terms of the cecal intubation rate. However, the application of WAC in ulcerative colitis (UC) has rarely been reported. This study aimed to explore the effectiveness of WAC without sedation in patients with UC. <b><i>Methods:</i></b> One hundred and seventy-two UC patients were randomly divided into the AIC group (<i>n</i> = 56), WIC group (<i>n</i> = 58), and WEC group (<i>n</i> = 58). The cecal intubation rate, abdominal pain score, operator difficulty, bowel cleanliness, insertion, and total time were compared. <b><i>Results:</i></b> The cecal intubation rate was higher in the WIC (91.4% vs. 75.0%; mean difference = 16.4%; 95% CI: 3.0–29.8%) and WEC (93.1% vs. 75.0%; mean difference = 18.1%; 95% CI: 5.0–31.2%) compared to the AIC group, while there was no difference between the WIC and WEC groups. The abdominal pain score and operator difficulty were lower in the WIC and WEC groups than in the AIC group, while there was no difference between the WIC and WEC groups. The bowel cleanliness during withdrawal was higher in the WIC and WEC groups than in the AIC group, while the WEC was superior to WIC. Compared with the AIC and WIC groups, the insertion time and total time were longer in the WEC group, and there was no difference in the AIC group and WIC group. <b><i>Conclusion:</i></b> In comparison with AIC, WAC can increase the cecal intubation rate, reduce abdominal pain scores and improve bowel cleanliness in patients with UC.

Publisher

S. Karger AG

Subject

Gastroenterology,General Medicine

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