Abstract:
:The aim of the study was to clarify whether nutrients are still capable of slowing gastric emptying following Roux-Y gastrectomy, as in normal dogs. Gastrointestinal motility and gastric emptying of acaloric and nutritive meals with different viscosities were measured in normal dogs and after a two-thirds Roux-Y gastrectomy. In gastrectomized dogs low-viscosity nutritive meals emptied unduly rapidly in an initial phase, although the frequency and spread of contractions, ie, the propulsive activity of the jejunal Roux limb were diminished. A slow emptying rate during the following period was due to a long-lasting inhibition of gastric and jejunal motility. Medium-viscosity nutritive meals emptied in gastrectomized dogs as slowly as in normal animals, but this effect was primarily caused by the meal viscosity and only secondarily by the nutrients. It is concluded that following Roux-Y gastrectomy a regulation of gastric emptying is preserved; however, the onset of an effective control is delayed, resulting in a rapid initial emptying of low-viscosity meals.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Ehrlein HJ,Thoma G,Keinke O,Tsiamitas C,Schumpelick Vdoi
10.1007/BF01296038subject
Has Abstractpub_date
1987-05-01 00:00:00pages
538-46issue
5eissn
0163-2116issn
1573-2568journal_volume
32pub_type
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