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논문 기본 정보

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학술저널
저자정보
Valeria Schindler (Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland) Martin Huellner (Department of Nuclear Medicine University Hospital Zurich University of Zurich Zurich Switzerland) Fritz Murray (Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland) Larissa Schnurre (Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland) Anton S Becker (Institute of Diagnostic and Interventional Radiology University Hospital Zurich Zurich Switzerland) Valentine Bordier (Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland) Daniel Pohl (Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland)
저널정보
대한소화관운동학회(현 대한소화기능성질환.운동학회) Journal of Neurogastroenterology and Motility (JNM) Journal of Neurogastroenterology and Motility (JNM) Vol.26 No.4
발행연도
2020.1
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514 - 520 (7page)

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Background/AimsSmall intestinal bacterial overgrowth (SIBO) is a common condition in disorders of gut-brain interaction (DGBI). Recently, a combined scintigraphy?lactulose hydrogen breath test (ScLHBT) was described as an accurate tool diagnosing SIBO. We aim to analyze whether a lactulose nutrient challenge test (NCT), previously shown to separate DGBI from healthy volunteers, is equivalent to ScLHBT in diagnosing SIBO. MethodsWe studied data of 81 DGBI patients undergoing ScLHBT with 30 g lactulose and 300 mL water as well as NCT with 30 g lactulose and a 400 mL liquid test meal. Differences in proportion of positive SIBO diagnoses according to specified cecal load and time criteria for NCT and ScLHBT, respectively, were tested in an equivalence trial. An odds ratio (OR) range of 0.80-1.25 was considered equivalent. ResultsDiagnosis of SIBO during NCT was not equivalent to SIBO diagnosis in ScLHBT, considering a hydrogen increase before cecal load of 5.0%, 7.5%, or 10.0%, respectively ([OR, 3.76; 90% CI, 1.99-7.09], [OR, 1.87; 90% CI, 1.06-3.27], and [OR, 1.11; 90% CI, 0.65- 1.89]). Considering only time to hydrogen increase as criterion, the odds of a positive SIBO diagnosis in the NCT (0.65) was lower than in ScLHBT (1.70) (OR, 0.38; 90% CI, 0.23-0.65). ConclusionsThis study could not show an equivalence of NCT and ScLHBT in diagnosing SIBO. A possible explanation might be the different transit times owing to unequal testing substances. The effect of this deviation in relation to consecutive therapy regimens should be tested in further prospective studies.

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