Digestive Diseases and Sciences

, Volume 36, Issue 1, pp 52–58 | Cite as

Visceral perception in health and functional dyspepsia

Crossover study of gastric distension with placebo and domperidone
  • Marc Bradette
  • Pierre Pare
  • Pierre Douville
  • Andree Morin
Original Articles

Abstract

The symptoms of functional dyspepsia are still unexplained. To evaluate the possible role of abnormal visceral perception, we studied the symptomatic responses and the pressure variations during progressive gastric distension in 10 female healthy control subjects (mean age 33.6 years) and in 10 female patients with functional dyspepsia (mean age 35.2 years). A rubber balloon was positioned 4 cm below the lower esophageal sphincter (LES) and inflated with progressively larger volumes of air by steps of 50 ml; pressures at the gastric fundus and at the LES were continuously recorded by perfused manometric catheters. Each subject was studied on two separate occasions after randomized double-blind administration of either placebo or 20 mg of domperidone. Symptomatic responses and the manometric data were analyzed at the time of the initial recognition of distension (bloating step) and at the time of reporting pain or up to a maximum of 700 ml of balloon inflation (pain or 700-ml step). On placebo, the volumes of gastric distension were more than two times lower in patients than in control subjects at the bloating step (185±32 ml vs 470±40 ml,P=0.001) and at the pain or 700-ml step (265±54 ml vs 600±34 ml,P<0.005), while the pressure gradients (pressure at inflation steps minus baseline pressure before beginning inflation) were not statistically different between the two groups. On domperidone, the volumes at each of the two steps did not change in comparison to results on placebo except in healthy controls at the bloating step (470±40 ml on placebo vs 355±35 ml on domperidone,P<0.001); however, there was a trend for pressure gradients to increase on domperidone in comparison to results on placebo. We conclude that patients with functional dyspepsia have a lower threshold both to the initial symptomatic recognition and to perception of pain during gastric distension and that domperidone might have an effect on the threshold of these conscious visceral sensations. This increased visceral perception may alone or with other abnormalities of the gastroduodenal tract explain the symptoms of functional dyspepsia.

Key Words

functional dyspepsia essential dyspepsia nonulcer dyspepsia domperidone 

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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • Marc Bradette
    • 1
  • Pierre Pare
    • 1
  • Pierre Douville
    • 1
  • Andree Morin
    • 1
  1. 1.Division of Gastroenterology, Department of Medicine, Hôtel-Dieu de Québec HospitalLaval UniversityQuébecCanada

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