当前位置： SCI文献检索 > WORLD JOURNAL OF GASTROENTEROLOGY期刊下所有文献 > Postprandial transduodenal bolus transport is regulated by complex peristaltic sequence.

Postprandial transduodenal bolus transport is regulated by complex peristaltic sequence.

Abstract：

AIM:To study the relationship between the patterns of postprandial peristalsis and transduodenal bolus transport in healthy subjects. METHODS:Synchronous recording of chyme transport and peristaltic activity was performed during the fasting state and after administration of a test meal using a special catheter device with cascade configuration of impedance electrodes and solid-state pressure transducers. The catheter was placed into the duodenum, where the first channel was located in the first part of the duodenum and the last channel at the duodenojejunal junction. After identification of previously defined chyme transport patterns the associated peristaltic patterns were analyzed. RESULTS:The interdigestive phase 3 complex was reliably recorded with both techniques. Of 497 analyzed impedance bolus transport events, 110 (22%) were short-spanned propulsive, 307 (62%) long-spanned propulsive, 70 (14%) complex propulsive, and 10 (2%) retrograde transport. Short-spanned chyme transports were predominantly associated with stationary or propagated contractions propagated over short distance. Long-spanned and complex chyme transports were predominantly associated with propulsive peristaltic patterns, which were frequently complex and comprised multiple contractions. Propagated double wave contraction, propagated contraction with a clustered contraction, and propagated cluster of contractions have been identified to be an integralted part of a peristaltic sequence in human duodenum. CONCLUSION:Combined impedancometry and manometry improves the analysis of the peristaltic patterns that are associated with postprandial transduodenal chyme transport. Postprandial transduodenal bolus transport is regulated by propulsive peristaltic patterns, which are frequently complex but well organized. This finding should be taken into consideration in the analysis of intestinal motility studies.

journal_name

World J Gastroenterol

journal_title

World journal of gastroenterology

authors

Nguyen HN,Winograd R,Domingues GR,Lammert F

doi

10.3748/wjg.v12.i37.6008

subject

Has Abstract

pub_date

2006-10-07 00:00:00

pages

6008-16

issue

eissn

1007-9327

issn

2219-2840

journal_volume

pub_type

杂志文章

在线工具

Postprandial transduodenal bolus transport is regulated by complex peristaltic sequence.