COMPUTER ANALYSIS OF GASTRIC AND DUODENAL POTENTIALS IN DOGS

In this report, it was intended to analyze gastric and duodenal action potentials with use of the medical computer. Ten mongrel dogs weighing about 10 kg were used for the experiments. Under the anesthesia with pentotal sodium administered intravenously or intraperitoneally, abdominal cavity was ope...

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Bibliographic Details
Published inJapanese Journal of Smooth Muscle Research Vol. 7; no. 3; pp. 98 - 104
Main Author KANO, Mitsumasa
Format Journal Article
LanguageJapanese
English
Published Japan Japan Society of Smooth Muscle Research 01.09.1971
Subjects
Action Potentials
Animals
Computers
Dogs
Duodenum - physiology
Electrodes, Implanted
Methods
Muscle, Smooth - physiology
Stomach - physiology
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Summary:In this report, it was intended to analyze gastric and duodenal action potentials with use of the medical computer. Ten mongrel dogs weighing about 10 kg were used for the experiments. Under the anesthesia with pentotal sodium administered intravenously or intraperitoneally, abdominal cavity was opened. Bipolar platinum-electrodes were implanted into subserosal tissue of the antrum for the recording of action potentials of the stomach. After the transverse incision and re-anastomosis of the anterior wall of the duodenum at the mid-point between the pyloric ring and ampulla of Vater, two bipolar electrodes were implanted on both side of the anastomosed line, respectively. For recording of the action potentials, ‘ TIAC R-351’ was used. ‘Interval histogram’ and‘ distribution histogram’ of data were made with medical computer ‘ATAC 501-20’. 1) It was shown that intervals were distributed between about 12 to 14 seconds by non-sequential interval histogram of gastric action potentials. 2) In non-sequential interval histogram, interval time of duodenal action potentials in the control group were divided to two groups, namely the one was 0.1-1.0 seconds, the other was 2-8 seconds. 3) In non-sequential interval histogram, interval times of duodenal action poten-tial recorded at the distal portion of anastomosis were divided into two groups, the one was 0.5-3 seconds, the other was 3-9.5 seconds. 4) Distribution histogram of duodenal action potentials in the control group counted to about 82.5 spikes in one spike burst.
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ISSN:0374-3527
1884-8788
DOI:10.1540/jsmr1965.7.98