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  • Title: Survival from an Acute Exacerbation of Idiopathic Pulmonary Fibrosis with or without Direct Hemoperfusion with a Polymyxin B-immobilized Fiber Column: A Retrospective Analysis.
    Author: Oishi K, Aoe K, Mimura Y, Murata Y, Sakamoto K, Koutoku W, Matsumoto T, Ueoka H, Yano M.
    Journal: Intern Med; 2016; 55(24):3551-3559. PubMed ID: 27980253.
    Abstract:
    Objective Acute exacerbations of idiopathic pulmonary fibrosis (AE-IPF) are fatal episodes of acute respiratory worsening of unknown etiology. Previous studies on acute respiratory distress syndrome have shown that direct hemoperfusion with a polymyxin B-immobilized fiber column (PMX-DHP) can have a beneficial effect on the respiratory status. This retrospective study investigated the prognosis and survival outcome of patients with AE-IPF who underwent PMX-DHP. Methods We examined the records of 50 patients with AE-IPF treated in our hospital. All patients received corticosteroid pulse therapy. We compared the disease outcome between 27 patients who underwent PMX-DHP (PMX group) and 23 patients who did not (non-PMX group). The independent predictors of survival were determined using Cox proportional hazards analyses. Results A multivariate analysis of all patients revealed that PMX-DHP therapy was a significant predictor of survival (HR=0.442, 95% CI 0.223-0.873; p=0.019). The 12-month survival rate was significantly higher in the PMX group than in the non-PMX group (41.7% vs. 9.8%; p=0.040). According to a subanalysis of the PMX group, the time from AE-IPF onset to PMX-DHP was a significant predictor of survival (HR=1.080, 95% CI 1.001-1.166; p=0.049). Conclusion PMX-DHP improved the prognosis of AE-IPF. The time from AE-IPF onset to PMX-DHP may therefore be informative for predicting the patient outcome.
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