Can Water Exchange Improve Patient Tolerance in Unsedated Colonoscopy A Prospective Comparative Study

GE Portuguese Journal of Gastroenterology
Richard AzevedoAntónio Banhudo

Abstract

Unsedated colonoscopy can be painful, poorly tolerated by patients, and associated with unsatisfactory technical performance. Previous studies report an advantage of water exchange over conventional air insufflation in reducing pain during unsedated colonoscopy. Our goal was to analyze the impact of water exchange colonoscopy on the level of maximum pain reported by patients submitted to unsedated colonoscopy, compared to conventional air insufflation. We performed a single-center, patient-blinded, prospective randomized comparative study, where patients were either allocated to the water group, in which the method of colonoscopy used was water exchange, or the standard air group, in which the examination was accomplished with air insufflation. A total of 141 patients were randomized, 70 to the water and 71 to the air group. The maximum level of pain reported by patients during unsedated colonoscopy, measured by a numeric scale of pain (0-10), was significantly lower in the water group (3.39 ± 2.32), compared to the air group (4.94 ± 2.10), p < 0.001. The rate of painless colonoscopy was significantly higher in the water group (12.9 vs. 1.4%, p = 0.009). There were no significant differences between the two groups regarding ind...Continue Reading

Citations

Jan 12, 2019·The Journal of International Medical Research·Xiufang XuXuan Huang
Jun 18, 2019·Frontline Gastroenterology·Keith Siau, Iosif Beintaris
Jun 4, 2020·Journal of Clinical Medicine·Gastone CiutiAnastasios Koulaouzidis

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