Transparent-cap-fitted colonoscopy shows higher performance with cecal intubation time in difficult cases

AIM：To investigate the efficacy of cap-fitted colonoscopy（CFC） with regard to cecal intubation time.METHODS：Two hundred and ninety-five patients undergoing screening colonoscopy at Gospel Hospital,Kosin University College of Medicine were enrolled in this randomized controlled trial between January and December 2010.Colonoscopies were conducted by a single endoscopist.Patient characteristics including age,sex,body mass index,history of abdominal surgery,quality of preparation,and the presence of diverticulosis were recorded.RESULTS：One hundred and fifty patients were allocated into a CFC group and 145 into a non-CFC（NCF） group.Cecal intubations were achieved in all patients.Cecal intubation time in the CFC group was significantly shorter than in the NCF group for specific conditions：age ≥ 60 years,prior abdominal surgery,and poor bowel preparation.The number of detected adenomas was higher in the CFC group than in the NCF group（P = 0.040）.CONCLUSION：CFC facilitated shortening of the cecal intubation time in difficult cases,and was more sensitive for detecting adenomas than was NCF.