How reproducible is cutaneous electrogastrography? An in‐depth evidence‐based study<sup>1</sup>

Jonderko, Krzysztof; Kasicka-Jonderko, Anna; Krusiec-Świdergoł, Beata; Dzielicki, Marek; Strój, Leszek; Dolinski, Miroslaw; Dolinski, Kamil; Błońska‐Fajfrowska, Barbara

doi:10.1111/j.1365-2982.2005.00707.x

Cited by 20 publications

(24 citation statements)

References 16 publications

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“…The literature is awash with examples of techniques that have failed to become established outside of the environments of tertiary care and research centres. 1,2 These failures have been largely as a consequence of not fulfilling these aforementioned principles.…”

Section: Introductionmentioning

confidence: 99%

Gastrointestinal motility revisited: The wireless motility capsule

2013

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Introduction: The wireless motility capsule (WMC) is a novel ambulatory technology that concurrently measures intraluminal pH, temperature, and pressure as it traverses the gastrointestinal tract. Objectives: We aim to provide a concise summary of the WMC, detailing the procedure for its administration and the parameters it records. We also review the evidence that has validated the WMC against other methods currently regarded as 'gold standard'. Conclusions: The WMC offers a number of advantages over and above current techniques, especially with respect to patient tolerability, safety, and standardization. The WMC represents a considerable enhancement of the researchers' and clinicians' investigatory armamentarium. If this technology becomes widely adopted, coupled with international consensus upon the interpretation of physiological data derived therein, it may herald a new and exciting era in gastrointestinal physiology.

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Section: Introductionmentioning

confidence: 99%

Gastrointestinal motility revisited: The wireless motility capsule

2013

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“…Without any doubt provision of reproducible measurement results is a feature of paramount importance, expected to be assured by methods designed for research and/or clinical applications in medicine [28,[31][32][33] . Breath tests performed with the use of stable isotopes, such as 13 C, cannot be considered an exception in this respect, especially because during the past decade their clinical use has been constantly growing [24,34,35] .…”

Section: Discussionmentioning

confidence: 99%

¹³C-methacetin breath test reproducibility study reveals persistent CYP1A2 stimulation on repeat examinations

Kasicka-Jonderko

A²,

Jonderko³

et al. 2011

WJG

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METHODS:Twenty healthy volunteers (10 female, 10 male) underwent the 13 C-MBT after intake of 75 mg 13 C-methacetin p.o. on three occasions. Short-and medium-term reproducibility was assessed with paired examinations taken at an interval of 2 and 18 d (medians), respectively. RESULTS:The reproducibility of the 1-h cumulative 13 C recovery (AUC0-60), characterized by a coefficient of variation of 10%, appeared to be considerably better than the reproducibility of the maximum momentary 13 C recovery or the time of reaching it. Remarkably, as opposed to the short gap between consecutive examinations, the capacity of the liver to handle 13 C-methacetin increased slightly but statistically significantly when a repeat dose was administered after two to three weeks.Regarding the AUC0-60, the magnitude of this fixed bias amounted to 7.5%. Neither the time gap between the repeat examinations nor the gender of the subjects affected the 13 C-MBT reproducibility. CONCLUSION:13 C-MBT is most reproducibly quantified by the cumulative 13 C recovery, but the exactitude thereof may be modestly affected by persistent stimulation of CYP1A2 on repeat examinations.

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“…The four methods applied-electrogastrography for the assessment of the gastric myoelectrical activity, the 13 C-acetate breath test for the gastric evacuation of a liquid meal, 13 C-octanoic breath test for the gastric emptying of solids, and the lactulose hydrogen breath test for the orocecal transit time-are all well established and widely used methodological approaches. In our laboratory we provided proof of reproducibility of every of the methods used in the current study (Jonderko et al, 2003;Jonderko et al, 2005b;Kasicka-Jonderko et al, 2005;KasickaJonderko et al, 2006b). Based on a repeat examinations model, it was shown that the 13 Cacetate breath test is capable of detecting a 6 min difference in T½ of an acaloric load, whereas the 13 C-octanoic acid breath test offered detectability of a 10 min difference in T½ of a solid caloric test meal with twelve paired studies at P=0.05 level, two-tailed (Kasicka- Jonderko et al, 2005;Kasicka-Jonderko et al, 2006b).…”

Section: Measurement Methodsmentioning

confidence: 99%

“…The electrogastrograms were analyzed according to a previously described routine (Jonderko et al, 2005b). Briefly: a fast Fourier transform (FFT) was run on consecutive 256-sec data sets with a 196-sec overlap.…”

Section: Measurement and Analytical Techniques Gastric Myoelectrical mentioning

confidence: 99%

Extracirculatory effects of noise of various frequency spectra in humans-effect of pink and blue noise on gastric myoelectrical activity and gastrointestinal passage of nutrients

Kasicka-Jonderko

Jonderko

Dolinski

et al. 2007

J. Smooth Muscle Res.

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Recent investigations in humans point out to a disturbing effect of auditory stimuli on the functional integrity of the brain-gut axis. The study was devoted to a systematic comparative evaluation of the effect of noises of different frequency spectra on the postprandial electrical and transport functions of the digestive tract in humans. Twenty six healthy subjects attended a cross-over study, which aimed at comparison of the effect of pink contrasted to blue noise within a given category (band or tonal) and a meal stimulus type (semi-liquid or solid test meal). A panel of noninvasive measurement methods was applied: heart rate variability (HRV) analysis, surface electrogastrography, 13 CO2 breath tests for gastric emptying (GE), lactulose hydrogen breath test for orocecal transit time (OCTT). The blue tonal noise was rated the most annoying one, whereas solely the pink noises exerted discernible cardiovascular effects. No one of the four noises was capable of overriding the meal-induced preponderance of the sympathetic tone. The postprandial gastric myoelectrical activity and the GE of either the semiliquid or the solid test meal appeared to be 'resistant' to the noise exposure, irrespective of the noise type. Similar was the finding in the case of the OCTT, with the exception of a statistically significant retardation of the OCTT with the blue band noise. Ingestion of mixed caloric meals seems to elicit a protective influence against noise-elicited derangements of the functional integrity of the digestive tract proven formerly to occur during the fasting period.

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How reproducible is cutaneous electrogastrography? An in‐depth evidence‐based study¹

Cited by 20 publications

References 16 publications

Gastrointestinal motility revisited: The wireless motility capsule

Gastrointestinal motility revisited: The wireless motility capsule

¹³C-methacetin breath test reproducibility study reveals persistent CYP1A2 stimulation on repeat examinations

Extracirculatory effects of noise of various frequency spectra in humans-effect of pink and blue noise on gastric myoelectrical activity and gastrointestinal passage of nutrients

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How reproducible is cutaneous electrogastrography? An in‐depth evidence‐based study1

Cited by 20 publications

References 16 publications

Gastrointestinal motility revisited: The wireless motility capsule

Gastrointestinal motility revisited: The wireless motility capsule

13C-methacetin breath test reproducibility study reveals persistent CYP1A2 stimulation on repeat examinations

Extracirculatory effects of noise of various frequency spectra in humans-effect of pink and blue noise on gastric myoelectrical activity and gastrointestinal passage of nutrients

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Product

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How reproducible is cutaneous electrogastrography? An in‐depth evidence‐based study¹

¹³C-methacetin breath test reproducibility study reveals persistent CYP1A2 stimulation on repeat examinations