Effect of lactulose oral solution combined with PEG-4000 electrolyte lavage solution on bowel preparation before colonoscopy / 中华消化内镜杂志

ABSTRACT

Objective To compare the effectiveness of lactulose oral solution combined with PEG-4000 electrolyte lavage solution with PEG-4000 electrolyte lavage solution only in colonoscopy preparation.Methods A total of 121 patients preparing for colonoscopy were randomly divided into two groups:61 patients in lactulose oral solution combined with PEG-4000 electrolyte lavage solution group (the experimental group =group A),and 60 patients in PEG-4000 electrolyte lavage solution group(the control group =group B).During the colonoscopy,the endoscopist blindly scored the cleanness of the bowel,and recorded any adverse event to assess the safety.Results According to the Boston bowel preparation scale,the experimental group scored 7.07 ±0.79,and the control group scored 6.18 ± 1.03,which showed significant significance(P =0.000).There was no significant difference in the time of accessing rectum between the two groups[(8.80 ± 1.74) min VS(9.22 ± 1.94) min,P =0.220].Polyp detection rate in group A was higher than that in group B,with no significant difference (22.95％ VS 15.00％,P ＞ 0.05).The small polyp (≤0.5 cm)detection rate in group A was higher than that in group B with significant significance(P =0.038).No adverse event was recorded in either group.Conclusion The bowel preparation with lactulose oral solution combined with PEG-4000 electrolyte lavage solution is more effective than that with PEG-4000 electrolyte lavage solution alone.It will enhance the detection rate of small polyps with no evident adverse reactions.