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Effects of Cold Stress on Gastric Myoelectric Activity
Author(s) -
Stern Robert M.,
Vasey Michael W.,
Hu Senqi,
Koch Kenneth L.
Publication year - 1991
Publication title -
neurogastroenterology and motility
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.489
H-Index - 105
eISSN - 1365-2982
pISSN - 1350-1925
DOI - 10.1111/j.1365-2982.1991.tb00065.x
Subject(s) - electrogastrogram , cold stress , medicine , meal , migrating motor complex , ice water , anesthesia , stomach , chemistry , biochemistry , food science , gene
Cold stress inhibits gastric motor activity. The purpose of this study was to use the surface‐recorded electrogastrogram (EGG) to determine what characteristics of the gastric myoelectric activity accompany this decrease in gastric motor activity. Thirty fasted healthy male volunteers participated in the study. Twelve remained fasted and placed their hands in 4°C ice water (cold stress), 12 ate a meal and then underwent cold stress, and 6 control subjects ate and then put their hands in 30°C water. EGGs were recorded continuously during the 65‐minute session: 15 minutes of baseline, 20 minutes of cold stress, and 30 minutes of recovery. Cold stress significantly decreased the power of normal 3 cpm EGG activity in the fed subjects, whereas fasted subjects showed great variability in their responses including paradoxical increases in power. Control subjects showed no EGG responses to putting their hands in room‐temperature water. No subjects showed gastric tachyarrhythmia during cold stress. In conclusion, cold stress, a painful stimulus, but one not usually accompanied by nausea, attenuates the amplitude of normal 3 cpm gastric myoelectric activity in fed subjects, but does not provoke tachyarrhythmia.