Gastric distension by sudden inflation of an intragastric balloon produced bradycardic response in awake toads and in anesthetized rats.

• 摘要无麻醉蟾蜍及麻醉老鼠经口腔，食道挿入小气球导管放置于胃内。经导管注射空气，胀大胃内小气球，引起胃膨胀。