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논문 기본 정보

자료유형
학술저널
저자정보
최명규 (가톨릭대학교)
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대한소화관운동학회(현 대한소화기능성질환.운동학회) Journal of Neurogastroenterology and Motility (JNM) Journal of Neurogastroenterology and Motility (JNM) Vol.21 No.3
발행연도
2015.1
수록면
390 - 397 (8page)

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Background/Aims Gastroesophageal reflux disease (GERD) has been suggested to be responsible for 23-68% of globus cases. The impedance baseline (IB) acquired by 24-hour multichannel intraluminal impedance monitoring has been proven to represent esophageal mucosal integrity. We aimed to investigate whether the IB is helpful for evaluating globus patients. Methods Twenty-four-hour multichannel intraluminal impedance pH tracings (MII-pH) were evaluated in globus patients. Differences in the IB between the acid reflux, non-acid reflux, and no reflux groups were analyzed. Receiver operating characteristic (ROC) curves were obtained to determine the optimal measurement point from the lower esophageal sphincter (LES). Results A total of 62 patients were analyzed. MII-pH showed that acid reflux, non-acid reflux, and no reflux were present in 13, 5, and 44 patients, respectively. The acid reflux group had a significantly lower IB than the other groups at a location 3 cm from the LES. ROC curve analysis revealed that placement at a position 3 cm from the LES resulted in moderate diagnostic accuracy (area under the curve = 0.88). When we set 2500 Ω as the cut-off value for acid reflux at a position 3 cm from the LES, the additional diagnostic yield for acid reflux was increased by 19.4% compared with that obtained by MII-pH. Conclusions IB is complementary to pH findings enabling identification of a subset of patients with co-existing acid reflux. Catheter placement at a location 3 cm from the LES and a cut-off value of 2500 Ω may be reasonable criteria for estimating acid reflux.

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