PMID- 29684034 OWN - NLM STAT- MEDLINE DCOM- 20180720 LR - 20181114 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 13 IP - 4 DP - 2018 TI - Effect of plasma exchange on in-hospital mortality in patients with pulmonary hemorrhage secondary to antineutrophil cytoplasmic antibody-associated vasculitis: A propensity-matched analysis using a nationwide administrative database. PG - e0196009 LID - 10.1371/journal.pone.0196009 [doi] LID - e0196009 AB - BACKGROUND: Secondary pulmonary hemorrhage increases the risk of mortality in patients with antineutrophil cytoplasmic antibody-associated vasculitis (AAV); plasma exchange therapy may improve outcomes in these patients. We conducted a retrospective cohort study to investigate the effect of plasma exchange therapy on short-term prognoses in patients with pulmonary hemorrhage secondary to AAV. METHODS: This study utilized the Diagnosis Procedure Combination database, which is a nationwide inpatient database in Japan. We checked the abstract data and medical actions and identified the patients with pulmonary hemorrhage secondary to AAV who required proactive treatment between 2009 and 2014. To compare the in-hospital mortality, we performed propensity score matching between the plasma exchange and non-plasma exchange groups at a ratio of 1:1. RESULTS: Of the 52,932 patients with AAV, 940 developed pulmonary hemorrhage as a complication. A total of 249 patients from 194 hospitals were eligible for the study. Propensity score matching at a ratio of 1:1 was performed, and 59 pairs were formed (plasma exchange group, n = 59; non-plasma exchange group, n = 59). A statistically significant difference was found in the all-cause in-hospital mortality between the plasma exchange and non-plasma exchange groups (35.6% vs. 54.2%; p = 0041; risk difference, -18.6; 95% confidence interval (CI), -35.4% to -0.67%). CONCLUSION: Thus, plasma exchange therapy was associated with improved in-hospital mortality in patients with pulmonary hemorrhage secondary to AAV. FAU - Uechi, Eishi AU - Uechi E AD - Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School, Yushima, Bunkyo-ku, Tokyo, Japan. AD - Division of Rheumatology, Tomishiro Central Hospital, Ueta, Tomigusuku-shi, Okinawa, Japan. FAU - Okada, Masato AU - Okada M AD - Immuno-Rheumatology Center, St. Luke's International Hospital, St. Luke's International University, Akashi-cho Chuo-Ku, Tokyo, Japan. FAU - Fushimi, Kiyohide AU - Fushimi K AUID- ORCID: 0000-0002-1894-0290 AD - Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School, Yushima, Bunkyo-ku, Tokyo, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180423 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Aged MH - Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/*complications MH - Female MH - Hemorrhage/mortality/*therapy MH - *Hospital Mortality MH - Humans MH - Lung Diseases/mortality/*therapy MH - Male MH - Plasma Exchange/*methods MH - Propensity Score MH - Retrospective Studies MH - Treatment Outcome PMC - PMC5912736 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2018/04/24 06:00 MHDA- 2018/07/22 06:00 PMCR- 2018/04/23 CRDT- 2018/04/24 06:00 PHST- 2017/11/15 00:00 [received] PHST- 2018/04/04 00:00 [accepted] PHST- 2018/04/24 06:00 [entrez] PHST- 2018/04/24 06:00 [pubmed] PHST- 2018/07/22 06:00 [medline] PHST- 2018/04/23 00:00 [pmc-release] AID - PONE-D-17-40447 [pii] AID - 10.1371/journal.pone.0196009 [doi] PST - epublish SO - PLoS One. 2018 Apr 23;13(4):e0196009. doi: 10.1371/journal.pone.0196009. eCollection 2018.