This consensus statement from the members of the American Neurogastroenterology and Motility Society and the Society of Nuclear Medicine recommends a standardized method for measuring gastric emptying (GE) by scintigraphy. A low-fat, eggwhite meal with imaging at 0, 1, 2, and 4 h after meal ingestion, as described by a published multicenter protocol, provides standardized information about normal and delayed GE. Adoption of this standardized protocol will resolve the lack of uniformity of testing, add reliability and credibility to the results, and improve the clinical utility of the GE test.

This consensus statement from the members of the American Neurogastroenterology and Motility Society and the Society of Nuclear Medicine recommends a standardized method for measuring gastric emptying (GE) by scintigraphy. A low-fat, egg-white meal with imaging at 0, 1, 2, and 4 h after meal ingestion, as described by a published multicenter protocol, provides standardized information about normal and delayed GE. Adoption of this standardized protocol will resolve the lack of uniformity of testing, add reliability and credibility to the results, and improve the clinical utility of the GE test.

ALESSI, R.,M. NUSYNOWITZ, J. A. ABILDSKOV AND G.K. &l~~.Nonunijorm distribution of vagal ejects on the atria1 refractory period. Am. J. Physiol. Ig&):406-410. xc&-The refractory period (RP) was measured at several points on the right atria1 surface in anesthetized dogs. Under control conditions with vagi cut the values recorded at various points varied by no more than 40 msec. During stimulation of the vagus nerves, singly or together, the RP varied widely. At some points marked effects were observed, while at others little or no effect was apparent. Reflex excitation of the vagi, induced by increased arterial pressure, yielded similar results. It was concluded that the effects of vagal stimulation are not uniformly distributed.

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