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[Gastro-pyloro-duodenal motor cooperation in patients with dyspepsia]
1Department of Gastroenterology, PUMC Hospital, CAMS, PUMC, Beijing 100730, China. mygcn@public3.bta.net.cn
Objective:
To investigate the role of the midgastric transverse band(MTB) and gastro-pyloro-duodenal motility in functional dyspepsia (FD) and diabetic dyspepsia (DD).
Methods:
Healthy subjects, patients with FD and DD participated in the study. Of them, 65 subjects received radionuclide gastric emptying, 48 complex ultrasonograph, and 35 gastro-pyloro-duodenal manometry.
Results:
(1) MTB was (7.01 +/- 1.31), (3.39 +/- 0.21) cm in FD and DD, which was significantly wider than that in HS group [(2.42 +/- 0.16) cm, P < 0.01, P < 0.001]. (2) The half gastric emptying time (t 1/2) in FD and DD were prolonged, gastric remained rate at 120 min increased, the gastric emptying velocity reduced when compared with HS. (3) The gastric occlusive and non-occlusive peristaltic contractions could be clearly shown under ultrasonograph. The percentage of emptying circle > 10 seconds was reduced in FD and DD. (4) There was decreased number of migrating motor complex phase III in FD and DD, when compared with HS.
Conclusions:
MTB is an area with physiological function, which affects intra-gastric food distribution. Patients with FD and DD showed delayed gastric emptying associated with decreased gastric motor activity and antro-pyloro-duodenal in-cooperative function. There may be different pathogenesis in FD and DD. Further study needs to be performed.
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