Effect of music on colonoscopy performance: A propensity scorematched analysis

BACKGROUND Music has been used to reduce stress and improve task performance during medical therapy.AIM To assess the effects of music on colonoscopy performance outcomes.METHODS We retrospectively reviewed patients who underwent colonoscopy performed by four endoscopists with popular music.Colonoscopy performance outcomes,such as insertion time,adenoma detection rate(ADR),and polyp detection rate(PDR),were compared between the music and non-music groups.To reduce selection bias,propensity score matching was used.RESULTS After one-to-one propensity score matching,169 colonoscopies were selected from each group.No significant differences in insertion time(4.97 vs 5.17 min,P=0.795)and ADR(39.1%vs 46.2%,P=0.226)were found between the two groups.Subgroup analysis showed that the insertion time(3.6 vs 3.8 min,P=0.852)and ADR(51.1%vs 44.7%,P=0.488)did not significantly differ between the two groups in experts.However,in trainees,PDR(46.9%vs 66.7%,P=0.016)and ADR(25.9%vs 47.6%,P=0.006)were significantly lower in the music than in the nonmusic group.CONCLUSION The current study found that listening to music during colonoscopy did not affect procedure performance.Moreover,it suggested that music may distract trainees from appropriately detecting adenomas and polyps.

Role of multidetector computed tomography in patients with acute infectious colitis

BACKGROUND The role of multidetector computed tomography(MDCT)in patients with acute infectious colitis is still unclear.AIM To examine the usefulness of MDCT in distinguishing the etiology of acute infectious colitis.METHODS Overall,244 patients who met the criteria for acute infectious colitis and visited the Hospital from February 2015 to 2018 were retrospectively enrolled and divided into two groups(bacterial:204,viral:40)according to causes of acute colitis,based on stool PCR.Eleven MDCT parameters,including wall thickening,submucosal edema,mucosal enhancement,serosa involvement,empty colon sign,small bowel involvement,comb sign,continuous distribution,accordion sign,mucosal thickening,and lymph node enlargement,were constructed in a blinded fashion.RESULTS MDCT parameters of wall thickening(OR:13.60;95%CI:5.80–31.88;P<0.001),submucosal edema(OR:36.08;95%CI:13.54–96.13;P<0.001),mucosal enhancement(OR:22.55;95%CI:9.28–54.81;P<0.001),serosal involvement(OR:14.50;95%CI:3.33–63.23;P<0.001),empty colon sign(OR:6.68;95%CI: 2.44–18.32;P < 0.001), continuous distribution (OR: 24.09;95%CI: 9.38–61.90;P < 0.001), accordionsign (OR: 9.02;95%CI: 1.12–72.35;P = 0.038), mucosal thickening (OR: 46.41;95%CI: 10.38–207.51;P< 0.001), and lymph node enlargement (OR: 4.39;95%CI: 1.22–15.72;P = 0.023) were significantlyassociated with bacterial colitis. At least one positive finding in four CT outcomes (submucosaledema, mucosal enhancement, continuous distribution, mucosal thickening) in summer showed ahigh probability of bacterial colitis (sensitivity, 41.67;specificity, 92.50;OR: 24.95).CONCLUSIONMDCT provides many clues that can be useful in suggesting a specific etiology of acute infectiouscolitis.