A randomised, controlled study of small intestinal motility in patients treated with sacral nerve stimulation for irritable bowel syndrome

BMC Gastroenterology

Research Article

Klaus Krogh¹  Søren Laurberg²  Steen Buntzen²  Lilli Lundby²  Jonas Worsøe²  Janne Fassov³ 

[1] Department of Hepatology and Gastroenterology, Neurogastroenterology Unit, Aarhus University Hospital, Aarhus, Denmark;Department of Surgery, P, Aarhus University Hospital, Aarhus, Denmark;Department of Surgery, P, Aarhus University Hospital, Aarhus, Denmark;Department of Hepatology and Gastroenterology, Neurogastroenterology Unit, Aarhus University Hospital, Aarhus, Denmark;

关键词: Irritable bowel syndrome;    Motility tracking system-1;    Small intestinal motility;    Bowel habits;   

DOI  :  10.1186/1471-230X-14-111

 received in 2013-12-06, accepted in 2014-06-02,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundIrritable bowel syndrome (IBS) is among the most common gastrointestinal disorders worldwide. In selected patients with severe diarrhoea-predominant or mixed IBS subtypes sacral nerve stimulation (SNS) alleviates IBS-specific symptoms and improves quality of life. The mode of action, however, remains unknown. The present study aimed to evaluate the effect of SNS on small intestinal motility in IBS patients.MethodsTwenty patients treated with SNS for severe diarrhoea-predominant or mixed IBS were included in a randomised, controlled, crossover study. The neurostimulator was turned ON or OFF for the first one month and then to the opposite setting for the next month. Gastrointestinal transit patterns were investigated with the Motility Tracking System-1 (MTS-1) at the end of each the ON and OFF period. Primary endpoint was change in the velocity of the magnetic pill within the small intestine. Statistical testing was performed with Wilcoxon’s rank sum test and Fisher’s exact test.ResultsThe median velocity of the magnetic pill through the small intestine in the fasting state was not significantly different between periods with and without SNS (Group ON-OFF: median change 0 m/h (range -1.07, 0.63), Group OFF-ON: median change 0.27 m/h (range -0.59, 1.12)) (p = 0.25). Neither, was the median velocity of the magnetic pill through the small intestine in the postprandial state significantly different between periods with and without SNS (Group ON-OFF: median change -0.13 m/h (range -0.46, 0.23), Group OFF-ON: median change 0.015 m/h (range -0.48, 0.59)) (p = 0.14).ConclusionEven though SNS may reduce symptoms of diarrhoea-predominant and mixed IBS, it has no detectable effect on small intestinal transit patterns.Trial registrationClinical.trials.gov, (NCT00919672).

【 授权许可】

CC BY   
© Fassov et al.; licensee BioMed Central Ltd. 2014