[Personal morbidity accounting].
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Disability Evaluation↗
Biomedical subjects
G A Iakovlev
Publications and source records attributed to G A Iakovlev.
[New medical pH probes for the examination of the gastrointestinal system].
The paper deals with pH-probes with mercurius chloride versus silver chloride electrodes for intragastric pH-metry. Present-day oral, transnasal, and endoscopic pH-probes with reusable epicutaneous silver chloride electrode have been designed and introduced into medical practice.
Diagnostic Techniques, Digestive System↗
[Accuracy of acidity changes in the gastrointestinal tract as determined by pH-tubes with the internal and external comparison electrodes].
It was for the first time that the presence of diffusive potentials on the borders between segments of the gastrointestinal tract (GIT) with differing compositions and pH values were detected in the practice of pH-metry. The diffusive potentials were found to be a cause for a considerably worsening accuracy of pH measurements by the second measuring electrode of the two-electrode pH-tube with the internal comparison electrode. On the contrary, when pH-tube with the external cutaneous comparison electrode is in use, the measuring accuracy does not deteriorate virtually for all electrodes in the latter case.
Electrodes↗
[Modern evaluation of the accuracy of determination of the acid-forming function of the stomach by the method of intragastric pH-metry].
Described are the results of research of how the standard location (antral region-stomach body-cardium) of the comparison electrode in the 3-electrode probe affects the clinical evaluation of the acid-forming function of the stomach (AFC) in patients with gastric and duodenal ulcer. It was found that a sufficient accuracy (+/-0.2) in measurements of basal pH of the stomach body and, consequently, in clinical evaluation of AFC for the main standard locations is ensured by pH-probes with the chlorosilver skin comparison electrode.
Electrodes↗