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Clinical Trial
Journal Article
Validation Study
Usefulness of a 13C-labeled mixed triglyceride breath test for assessing pancreatic exocrine function after pancreatic surgery.
Surgery 2009 Februrary
BACKGROUND: Although the fecal elastase-1 test is a satisfactory pancreatic exocrine function test, breath tests that use stable isotopes have been developed recently as alternatives. We evaluated the usefulness of a (13)C-labeled mixed triglyceride breath test for assessing pancreatic exocrine function after pancreatic surgery.
METHODS: The breath test and the fecal elastase-1 test were performed on 7 healthy volunteers, 10 patients with chronic pancreatitis, and 95 patients after pancreatic surgery. The breath test was analyzed with isotope ratio mass spectrometry and the cumulative recovery of (13)CO(2) at 7 hours (% dose (13)C cum 7h) was calculated. The fecal elastase-1 concentration was determined immunoenzymatically.
RESULTS: Both the fecal elastase-1 concentration and the % dose (13)C cum 7h of chronic pancreatitis patients and pancreatic resection patients were less than those of healthy volunteers. In all subjects, % dose (13)C cum 7h correlated with the fecal elastase-1 concentration (n = 112, R(2) = 0.14, P < .01). Accuracy rates for clinical symptoms, including clinical steatorrhea, for the fecal test and the breath test were 62 and 88%, respectively.
CONCLUSION: The (13)C-labeled mixed triglyceride breath test might be more useful than the fecal elastase-1 test for evaluating pancreatic exocrine function after pancreatic resection.
METHODS: The breath test and the fecal elastase-1 test were performed on 7 healthy volunteers, 10 patients with chronic pancreatitis, and 95 patients after pancreatic surgery. The breath test was analyzed with isotope ratio mass spectrometry and the cumulative recovery of (13)CO(2) at 7 hours (% dose (13)C cum 7h) was calculated. The fecal elastase-1 concentration was determined immunoenzymatically.
RESULTS: Both the fecal elastase-1 concentration and the % dose (13)C cum 7h of chronic pancreatitis patients and pancreatic resection patients were less than those of healthy volunteers. In all subjects, % dose (13)C cum 7h correlated with the fecal elastase-1 concentration (n = 112, R(2) = 0.14, P < .01). Accuracy rates for clinical symptoms, including clinical steatorrhea, for the fecal test and the breath test were 62 and 88%, respectively.
CONCLUSION: The (13)C-labeled mixed triglyceride breath test might be more useful than the fecal elastase-1 test for evaluating pancreatic exocrine function after pancreatic resection.
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