Abstract
To investigate small bowel motility in gastrointestinal amyloidosis, lactulose breath hydrogen tests were performed on 16 patients with histologically proven amyloidosis and 12 age- and sex-matched controls. Fasting breath hydrogen concentration (FBHC) was not significantly different between the two groups, but there was a tendency for FBHC in symptomatic amyloidosis patients (median 31.5, range 3–78 ppm) to be higher than in asymptomatic amyloidosis patients (4, 0–34 ppm, 0.05<P<0.1) and controls (6, 1–19 ppm, 0.05<P<0.1). Orocecal transit time (OCTT) was significantly delayed in the amyloidosis group (median 150, range 40–220 min) when compared to the controls (60, 20–110 min,P<0.01), but OCTT was not statistically different between symptomatic and asymptomatic amyloidosis patients. These data suggest an impaired motility of the stomach and small intestine in gastrointestinal amyloidosis and the possible role of small intestinal dysfunction such as bacterial overgrowth and malabsorption in the occurrence of symptoms in this disorder.
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Matsumoto, T., Iida, M., Hirakawa, M. et al. Breath hydrogen test using water-diluted lactulose in patients with gastrointestinal amyloidosis. Digest Dis Sci 36, 1756–1760 (1991). https://doi.org/10.1007/BF01296621
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DOI: https://doi.org/10.1007/BF01296621