Bredenoord Albert J, Weusten Bas L A M, Timmer Robin, Smout André J P M
Department of Gastroenterology, Sint Antonius Hospital, Nieuwegein, The Netherlands.
Am J Gastroenterol. 2006 Dec;101(12):2777-81. doi: 10.1111/j.1572-0241.2006.00917.x. Epub 2006 Oct 13.
In patients with aerophagia and excessive belching an organic cause is seldom found and a psychogenic cause is often suspected.
To investigate the effects of attention and distraction on the frequency of belching in patients with aerophagia.
In 10 patients with aerophagia, combined esophageal manometry and impedance monitoring was performed for 2 h, consisting of four 30-minute recording periods. Period I: patient unaware that recording had commenced. Period II: patient informed of recording in progress. Period III: distraction by filling in questionnaires. Period IV: no distraction.
A total of 1,258 belches was measured, 51 of which were the result of air that escaped from the stomach (gastric belches). A total of 1,207 belches (96%) were events during which air was expelled in the oral direction almost immediately after entering the esophagus from there (supragastric belches). Gastric belches were distributed equally over the first (1.5 [0.5-2.0]), second (1.5 [0.5-2.0]), third (1.0 [0-2.0]), and fourth (1.0 [0-2.0]) recording periods. In contrast, the incidence of supragastric belches increased significantly from 0 (0-32) in period I to 30 (18-60) in period II, after patients were told that recording was started. During period III (questionnaires) the incidence of supragastric belches decreased to 14 (4-30). In period IV the incidence of supragastric belches increased to 21 (10-49).
When patients with excessive belching are unaware that they are being studied or when they are distracted, the incidence of belching is significantly reduced. These findings underline the importance of psychological factors and provide rationale for behavioral therapy.
在患有吞气症和过度嗳气的患者中，很少能找到器质性病因，因此常常怀疑是心理性病因。
研究注意力和分心对吞气症患者嗳气频率的影响。
对10例吞气症患者进行了2小时的食管测压和阻抗联合监测，包括四个30分钟的记录期。第一期：患者 unaware that recording had commenced. 第二期：告知患者记录正在进行。第三期：通过填写问卷分散注意力。第四期：无分心。
共测量到1258次嗳气，其中51次是胃内气体逸出导致的（胃源性嗳气）。共有1207次嗳气（96%）是气体从食管进入后几乎立即向口腔方向排出的事件（胃上嗳气）。胃源性嗳气在第一（1.5 [0.5 - 2.0]）、第二（1.5 [0.5 - 2.0]）、第三（1.0 [0 - 2.0]）和第四（1.0 [0 - 2.0]）记录期分布均匀。相比之下，胃上嗳气的发生率从第一期的0（0 - 32）显著增加到第二期的30（18 - 60），即患者被告知记录开始后。在第三期（问卷），胃上嗳气的发生率降至14（4 - 30）。在第四期，胃上嗳气的发生率增加到21（10 - 49）。
当过度嗳气的患者不知道自己正在被研究或分心时，嗳气的发生率会显著降低。这些发现强调了心理因素的重要性，并为行为疗法提供了理论依据。
原文中“unaware that recording had commenced”此句英文表述有误，正确表述应该是“unaware that recording had commenced” ，翻译时保留了原文错误表述。
