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학술저널
저자정보
Chang Min Lee (Internal Medicine Seoul National University Bundang Hospital Seongnam-si Gyeonggi-do Korea) Dong Ho Lee (Department of Internal Medicine Seoul National University Bundang Hospital Seongnam Gyeonggi-do) Byung Kyu Ahn (Internal Medicine Seoul National University Bundang Hospital Seongnam-si Gyeonggi-do Korea) Jae Jin Hwang (Seoul National University Bundang Hospital) Hyuk Yoon (Seoul National University Bundang Hospital) Cheol Min Shin (Department of Internal Medicine Seoul National University Bundang Hospital Seongnam Gyeonggi-do) Young Soo Park (Internal Medicine Seoul National University Bundang Hospital Seongnam-si Gyeonggi-do Korea) Nayoung Kim (Department of Internal Medicine Seoul National University Bundang Hospital Seongnam Korea)
저널정보
대한소화관운동학회(현 대한소화기능성질환.운동학회) Journal of Neurogastroenterology and Motility (JNM) Journal of Neurogastroenterology and Motility (JNM) Vol.22 No.3
발행연도
2016.1
수록면
444 - 451 (8page)

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Background/AimsThe prevalence of gastroesophageal reflux disease (GERD) is high in patients with idiopathic pulmonary fibrosis (IPF). GERD may causechronic microaspiration that leads to repeated subclinical lung injury, which leads to pulmonary fibrosis. Although some studies havesuggested that proton pump inhibitors (PPI) were associated with a good prognosis in IPF, their effects remain unclear. MethodsWe retrospectively reviewed 786 consecutive adult patients with IPF at Seoul National University Bundang Hospital between April2003 and March 2015. ResultsMean duration of follow-up was 2.6 ± 2.8 years. Of the 786 patients with IPF, 107 (13.6%) were given diagnoses of GERD, and 103(13.1%) died due to IPF-related pneumonia or respiratory failure. The prevalence of GERD and the cumulative incidence of de novoGERD increased depending on the period of follow-up in patients with IPF. Patients administered PPI for more than four months hada lower IPF-related mortality rate than patients on PPI less than 4 months (Log-rank P -value = 0.024 in Kaplan-Meier curve). In aunivariate and multivariate Cox regression hazard model, younger age (hazard ratio [HR], 1.06; 95% CI, 1.03-1.10; P = 0.001), higherinitial forced vital capacity (HR, 0.98; 95% CI, 0.96-0.99; P = 0.004), and longer duration of PPI use (HR, 0.97; 95% CI, 0.95-1.00; P= 0.022), but not a diagnosis of GERD, were significantly associated with lower IPF-related mortality. ConclusionsIn Korean patients with IPF, the prevalence of GERD was lower than in other countries. PPI use for at least 4 months may have aprotective effect against IPF-related mortality.

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