13 C‐gastric emptying breath tests: Clinical use in adults and children

Author(s):  
Jutta Keller ◽  
Heinz F Hammer ◽  
Bruno Hauser
2005 ◽  
Vol 50 (4) ◽  
pp. 669-670 ◽  
Author(s):  
Masaki Sanaka ◽  
Takatsugu Yamamoto ◽  
Yasushi Kuyama

1997 ◽  
Vol 43 (3) ◽  
pp. 518-522 ◽  
Author(s):  
Peter Schadewaldt ◽  
Bernd Schommartz ◽  
Gregor Wienrich ◽  
Herbert Brösicke ◽  
Ralf Piolot ◽  
...  

Abstract Suitability of isotope-selective nondispersive infrared spectrometry (IRIS) for evaluation of [13C]octanoic acid gastric-emptying breath test was assessed and compared with standard isotope ratio–mass spectrometry (IRMS). The estimated bias of IRMS and IRIS measurements of baseline-corrected 13CO2exhalation amounted to ± 0.1 and ± 0.6 Δδ values (n = 360), respectively. In breath tests performed on 60 diabetic patients, the gastric emptying parameters were calculated by nonlinear regression analysis of the time course of 13CO2exhalation: half-emptying time (t1/2,breath, 90 ± 39 min), lag phase (tlag,breath, 34 ± 27 min), and gastric emptying coefficient (GEC, 2.9 ± 0.5). A reasonable linear correlation was found between the two methods (y = IRIS, x = IRMS) with respect to Δδ values (y = 0.35 + 0.92x, r = 0.985, Sy|x = ±0.6, n = 1116) and a rather good agreement of the computed gastric emptying parameters was obtained (t1/2,breath: y = 0.99x + 4.06, Sy|x = ±6.3; tlag,breath: y = 0.97x + 0.96, Sy|x = ±3.4; GEC: y = 0.97x − 0.01, Sy|x = ±0.09).


2017 ◽  
pp. 287-309
Author(s):  
James McCloskey ◽  
Jamie Koprivnikar ◽  
Stefan Faderl ◽  
Dirk Reinhardt ◽  
Nobuko Hijiya

2008 ◽  
Vol 53 (7) ◽  
pp. 1747-1756 ◽  
Author(s):  
Masaki Sanaka ◽  
Takatsugu Yamamoto ◽  
Yasushi Kuyama

1995 ◽  
Vol 108 (4) ◽  
pp. A594
Author(s):  
L-P. Duan ◽  
B. Braden ◽  
W.F. Caspary ◽  
B. Lembcke

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