Rumination is defined as the repetitive, effortless regurgitation of recently ingested food into the mouth. These episodes are preceded by a rise in intragastric pressure (IGP) and mainly occur postprandially. IGP peaks >30 mmHg have been proposed as a cutoff to differentiate rumination from reflux events. In clinical practice, we observed that this cutoff, which does not consider esophagogastric junction (EGJ) resistance, is not always reached.

中文翻译：

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胃括约肌压力梯度：诊断反刍发作的新参数

反刍被定义为重复、毫不费力地将最近摄入的食物反流到嘴里。这些发作之前是胃内压 (IGP) 升高，主要发生在餐后。IGP 峰 > 30 mmHg 已被提议作为区分反刍与反流事件的截止值。在临床实践中，我们观察到这个不考虑食管胃交界处 (EGJ) 阻力的截止值并不总是达到。