TY - JOUR
T1 - Current status of multichannel electrogastrography and examples of its use.
AU - Murakami, Haruaki
AU - Matsumoto, Hideo
AU - Ueno, Daisuke
AU - Kawai, Akimasa
AU - Ensako, Takaaki
AU - Kaida, Yuko
AU - Abe, Toshiya
AU - Kubota, Hisako
AU - Higashida, Masaharu
AU - Nakashima, Hiroshi
AU - Oka, Yasuo
AU - Okumura, Hideo
AU - Tsuruta, Atsushi
AU - Nakamura, Masafumi
AU - Hirai, Toshihiro
PY - 2013
Y1 - 2013
N2 - Electrogastrography (EGG) is a non-invasive diagnostic motility for recording gastric myoelectrical activity. Gastric myoelectrical activity was first recorded in 1922. Advances in recording equipment enabled widespread use of cutaneous EGG after 1985. Later, introduction of multichannel EGG (M-EGG) enabled measurement of electrical activity transmission. At present, M-EGG findings are used as objective indicators of gastric motility disorders caused by various diseases. EGG measures two categories of gastric electrical activity: electrical response activity, or spike potentials; and electrical control activity, or slow waves. The appearance of abnormal rhythmic electrical activity is indicative of abnormalities in gastric motility. The normal frequency range of gastric electrical activity (normogastria) is around 3 cycles per?min. Multiple EGG parameters assist in the assessment of gastric myoelectrical activity, and significant correlations between EGG and other gastric motility tests have been demonstrated in many studies. In Japan, however, EGG remains in the exploratory stage, and its clinical use is limited. There are large variations in procedures and systems used in previous studies, thus there is a need for standardization of EGG procedures and technical terminology. Here, we outline the current status of EGG and report the M-EGG procedures used in our department in addition to our M-EGG findings.
AB - Electrogastrography (EGG) is a non-invasive diagnostic motility for recording gastric myoelectrical activity. Gastric myoelectrical activity was first recorded in 1922. Advances in recording equipment enabled widespread use of cutaneous EGG after 1985. Later, introduction of multichannel EGG (M-EGG) enabled measurement of electrical activity transmission. At present, M-EGG findings are used as objective indicators of gastric motility disorders caused by various diseases. EGG measures two categories of gastric electrical activity: electrical response activity, or spike potentials; and electrical control activity, or slow waves. The appearance of abnormal rhythmic electrical activity is indicative of abnormalities in gastric motility. The normal frequency range of gastric electrical activity (normogastria) is around 3 cycles per?min. Multiple EGG parameters assist in the assessment of gastric myoelectrical activity, and significant correlations between EGG and other gastric motility tests have been demonstrated in many studies. In Japan, however, EGG remains in the exploratory stage, and its clinical use is limited. There are large variations in procedures and systems used in previous studies, thus there is a need for standardization of EGG procedures and technical terminology. Here, we outline the current status of EGG and report the M-EGG procedures used in our department in addition to our M-EGG findings.
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U2 - 10.1540/jsmr.49.78
DO - 10.1540/jsmr.49.78
M3 - Review article
C2 - 24662473
AN - SCOPUS:84902578530
SN - 0916-8737
VL - 49
SP - 78
EP - 88
JO - Journal of smooth muscle research = Nihon Heikatsukin Gakkai kikanshi
JF - Journal of smooth muscle research = Nihon Heikatsukin Gakkai kikanshi
ER -