The cause of chronic nausea can be difficult to diagnose. Idiopathic rapid gastric emptying (iRGE) can cause nausea, but limited literature exists on clinical and pathophysiological features. In contrast, dumping syndrome or post‐surgical rapid gastric emptying (psRGE) is well‐known and may present with early phase vasomotor symptoms, diarrhea, and late phase reactive hypoglycemia. Our aim is to compare clinical and gastric motility characteristics in patients with iRGE and psRGE and unexplained chronic nausea.

中文翻译：

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出现不明原因慢性恶心的特发性和手术后快速胃排空患者的临床特征和胃肌电活动

慢性恶心的原因可能难以诊断。特发性快速胃排空 (iRGE) 可引起恶心，但关于临床和病理生理特征的文献有限。相反，倾倒综合征或术后快速胃排空 (psRGE) 是众所周知的，可能表现为早期血管舒缩症状、腹泻和晚期反应性低血糖。我们的目的是比较 iRGE 和 psRGE 以及不明原因慢性恶心患者的临床和胃动力特征。