ELECTROGASTROGRAPHY PRIOR TO AND FOLLOWING TOTAL GASTRECTOMY, SUBTOTAL GASTRECTOMY, AND GASTRIC TUBE FORMATION

Citation
S. Homma et al., ELECTROGASTROGRAPHY PRIOR TO AND FOLLOWING TOTAL GASTRECTOMY, SUBTOTAL GASTRECTOMY, AND GASTRIC TUBE FORMATION, Digestive diseases and sciences, 40(4), 1995, pp. 893-900
Citations number
15
Categorie Soggetti
Gastroenterology & Hepatology
ISSN journal
01632116
Volume
40
Issue
4
Year of publication
1995
Pages
893 - 900
Database
ISI
SICI code
0163-2116(1995)40:4<893:EPTAFT>2.0.ZU;2-8
Abstract
On electrogastrography (EGG) spectral analysis, an activity of 3 cycle s per minute (cpm) is supposed to be specific for the stomach. After t otal or subtotal gastrectomy, the original site of the stomach is occu pied mainly by the intestine. We attempted to determine if intestinal activity could be recorded in this region with EGG. Epigastric recordi ngs were performed in patients prior and following gastrointestinal or control surgeries. Spectral analysis, using the maximal entropy metho d and ensemble means was applied to data analysis from these recording s. Preoperatively, the majority of the power peaks were found around 3 , 6, and 11 cpm. The postprandial-to-fasting power ratio of all of the se power peaks increased significantly postprandially (P < 0.05-0.01). Following total gastrectomy, the power peak around 3 cpm disappeared or was significantly diminished in amplitude (P < 0.05). The postopera tive-to-preoperative power ratio ranged from 0.03 to 0.10 (P < 0.001-0 .01). However, the power peak around 11 cpm did not significantly chan ge prior to or following total gastrectomy, and the 11 cpm peak appear ed relatively dominant. Simultaneous manometric studies in the Roux li mb demonstrated a correlation between the power spectral frequency of EGG and manometry at 11 cpm. Therefore, the 11 cpm peak appeared to re flect jejunal or Roux limb electrical activity. The postoperative to p reoperative power ratio for the 3 cpm also was significantly reduced f ollowing subtotal gastrectomy and gastric tube formation in patients i n the postprandial state (P < 0.05-0.001).