Faecal Fat Excretion and Stool Colour after Vagotomy and Pyloroplasty

Metabolic effects of vagotomy and gastric drainage

“…The incidence of steatorrhoea (generally, faecal fat in excess of 7 g/24 hr) varies considerably after vagotomy and gastro-jejunostomy, with the observer from 43% (Cox et al, 1964) to 9% (Tovey, 1967). Similar variation is found after vagotomy and pyloroplasty, Wastell & Ellis (1966) finding steatorrhoea in 50% of their patients while Tovey (1967) found it in only 8%. This variation is difficult to explain particularly as diet has little effect on fat excretion except in persons suffering from some malabsorptive process (Frazer et al, 1949;Frazer, 1961).…”

Effect of Truncal Vagotomy on GIP Release Induced by Intraduodenal Glucose or Fat in Dogs

“…First, we must consider the absorptive function because the absorption of nutrients from the intestine is necessary for GIP re lease [18]. Some investigators have suggested that TV with pyloroplasty reduces fat absorp tion [19,20]. There is a possibility, therefore, that the apparent GIP response to fat did not change after TV, even though TV might di rectly increase the reactivity of the GIP cells to fat as well as to glucose.…”

Postvagotomy unmasking of nontropical sprue

“…Increased fecal fat [5], decreased biliary [11], or pancreatic activity [2], altered intestinal flora [6,12], and decreased intestinal motility [13], have all been studied and each has been imputed to explain the clinical symptoms. Morphologic abnormalities of the small intestine are not generally consid-…”