Authors: Michael Camilleri Mary Breen Michael Ryks Duane Burton
Publish Date: 2011/02/17
Volume: 56, Issue: 6, Pages: 1729-1734
Abstract
Interventions such as gastric surgery and erythromycin result in displacement of solids to the distal stomach and acceleration of overall and proximal gastric emptying The effect of nonsurgical impairment of gastric accommodation on gastric emptying is unclear Nonsurgical impairment of gastric accommodation is associated with accelerated gastric emptyingWe evaluated overall and proximal gastric emptying in nine patients with impaired gastric accommodation and ageequivalent and gendermatched controls Gastric volumes and emptying were measured using validated SPECT and dual gamma camera scintigraphy respectively We compared group differences in overall and proximal gastric emptying t 1/2 by t testPatients with impaired postprandial gastric volume accommodation had greater fasting gastric volume The proportion of food emptied from the proximal stomach immediately after meal ingestion was lower and t 1/2 of proximal gastric emptying correspondingly longer in the group with reduced postprandial gastric accommodation In contrast differences were not detected in overall gastric emptying in the two groups and the ratio of overall to proximal gastric emptying t 1/2 was greater in the group with impaired volume accommodationProximal stomach emptying is reduced in patients with impaired postprandial volume accommodation this difference occurs predominantly during the time of meal ingestion Compensatory mechanisms that result in normal overall gastric emptying require further elucidationThis study was supported by Mayo CTSA grant RR0024150 from National Institutes of Health Dr Camilleri is supported by grants R01 DK67071 from National Institutes of Health We thank the Nursing and Imaging Cores of Mayo Clinic Clinical Research Unit and Cindy Stanislav for secretarial assistance
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