title: Physiological evaluation of residual stomach motility after local resection in conscious dogs.
abstract: OBJECTIVE
  To investigate the phenomenon of remnant gastric motility and emptying after local resection.
  
  
  METHODS
  Fifteen dogs were divided into three groups: a control (CONT) group, a group that underwent local resection of the greater (GREAT) curvature, and a group that underwent resection of the lesser (LESS) curvature. We conducted a strain gauge force transducer study, a [(13)C]octanoic acid breath test ((13)C-OBT), and a mosapride citrate effect test. Based on these results, we worked out the receptive relaxation (RR), motility index (MI), and postprandial period (PP) in the postprandial state, and the frequency, duration, and MI of phase III in the fasted state. The half emptying time (T (1/2)) of (13)C-OBT was also calculated. The MI was compared according to the mosapride effect test results.
  
  
  RESULTS
  Postprandial RR, antro-pyloro-duodenal coordination, and fasting contractions were maintained in all three groups. Receptive relaxation was significantly shorter in the LESS group than in the other groups. Motility index was significantly lower in both treatment groups than in the CONT group. The PP was significantly longer in the GREAT group than in the other two groups. The (13)CO(2) excretion curves did not differ significantly among the groups. The duration of phase III was remarkably less in the treatment groups than in the CONT group, and MI was significantly lower in the LESS group than in the other groups in the fasted state. The MI increased remarkably after mosapride administration in the CONT group, showing no differences in other objective groups.
  
  
  CONCLUSIONS
  Gastric function was maintained after gastric local resection, although its motility decreased.
authors.affiliation: Department of Surgery, International University of Health and Welfare Mita Hospital, 1-4-3 Mita, Minato-ku, Tokyo, 108-8329, Japan.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Kubota
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Tatsutomi
authors.forename: Masaki
authors.initials: M
authors.lastname: Kitajima
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Mafune
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Ohta
authors.forename: Masashi
authors.initials: M
authors.lastname: Yoshida
authors.forename: Tatsushi
authors.initials: T
authors.lastname: Suwa
authors.forename: Junko
authors.initials: J
authors.lastname: Kuroda
authors.forename: Naoki
authors.initials: N
authors.lastname: Hiki
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Seto
authors.forename: Michio
authors.initials: M
authors.lastname: Kaminishi
mesh_terms: D000818:Animals; D001944:Breath Tests; D002210:Caprylates / Q000378:metabolism; D004063:Digestion; D004285:Dogs; D004386:Duodenum / Q000503:physiopathology; D005215:Fasting / Q000502:physiology; D005743:Gastrectomy; D005746:Gastric Emptying; D018530:Gastric Stump / Q000503:physiopathology*; D005769:Gastrointestinal Motility; D007583:Jejunum / Q000503:physiopathology; D019518:Postprandial Period; D011706:Pyloric Antrum / Q000503:physiopathology; D011708:Pylorus / Q000503:physiopathology; D014159:Transducers
chemical_list: D002210:Caprylates