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과민성 장 증후군에서 소장세균과다증식의 예측을 위한 락툴로오스 호기검사의 유용성

Other Titles
 Usefulness of Lactulose Breath Test for the Prediction of Small Intestinal Bacterial Overgrowth in Irritable Bowel Syndrome 
 박정수  ;  유정환  ;  임현철  ;  김지현  ;  윤영훈  ;  박효진  ;  이상인 
 Korean Journal of Gastroenterology, Vol.56(4) : 242-248, 2010 
Journal Title
Korean Journal of Gastroenterology(대한소화기학회지)
Issue Date
Irritable bowel syndrome ; Small intestinal bacterial overgrowth ; Lactulose breath test
BACKGROUND/AIMS: Lactulose breath test (LBT) has been used as a presumptive surrogate marker for small intestinal bacterial overgrowth (SIBO). However, recent reports suggest that abnormal LBT cannot discriminate patients with irritable bowel syndrome (IBS) from the control. Thus, the aim of this study was to evaluate the usefulness of LBT in IBS. METHODS: LBT from 76 IBS patients, 70 functional bowel disorders (FBD), and 40 controls were examined. LBT was considered positive if (1) baseline breath hydrogen (H2) >20 parts per million (ppm) or rise of breath H2 >20 ppm above the baseline in <90 mins, or (2) baseline breath methane (CH4) >10 ppm or rise of breath CH4 >10 ppm above the baseline in <90 mins. The subjects were categorized into predominant hydrogen producers (PHP), predominant methane producers (PMP), combined producer, and both negative group based on LBT. RESULTS: The rate of abnormal LBT in the IBS, FBD, and control group were 44.7%, 41.4%, and 40.0% respectively without significant differences. The rate of PHP or PMP was not significantly different among the IBS, FBD, and control group. When clinical characteristics were analyzed in IBS and FBD according to LBT types, IBS subtypes and symptoms were not significantly different. CONCLUSIONS: LBT was not useful to discriminate IBS/FBD patients from the control. The assessment of SIBO by LBT in IBS should be revalidated in the future
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jie-Hyun(김지현) ORCID logo https://orcid.org/0000-0002-9198-3326
Park, Hyo Jin(박효진) ORCID logo https://orcid.org/0000-0003-4814-8330
Youn, Young Hoon(윤영훈) ORCID logo https://orcid.org/0000-0002-0071-229X
Lee, Sang In(이상인)
Lim, Hyun Chul(임현철)
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