PMID- 29094310 OWN - NLM STAT- MEDLINE DCOM- 20180522 LR - 20181113 IS - 1573-2568 (Electronic) IS - 0163-2116 (Linking) VI - 63 IP - 2 DP - 2018 Feb TI - Proton Pump Inhibitors Independently Protect Against Early Allograft Injury or Chronic Rejection After Lung Transplantation. PG - 403-410 LID - 10.1007/s10620-017-4827-0 [doi] AB - BACKGROUND: Acid reflux has been associated with poor outcomes following lung transplantation. Unlike surgical fundoplication, the role of noninvasive, pharmacologic acid suppression remains uncertain. AIMS: To assess the relationship between post-transplant acid suppression with proton pump inhibitors (PPI) or histamine-2 receptor antagonists (H2RA) and onset of early allograft injury or chronic rejection following lung transplantation. METHODS: This was a retrospective cohort study of lung transplant recipients at a tertiary center in 2007-2014. Patients with pre-transplant antireflux surgery were excluded. Time-to-event analysis using the Cox proportional hazards model was applied to assess acid suppression therapy and onset of acute or chronic rejection, defined histologically and clinically. Subgroup analyses were performed to assess PPI versus H2RA use. RESULTS: A total of 188 subjects (60% men, mean age 54, follow-up 554 person-years) met inclusion criteria. During follow-up, 115 subjects (61.5%) developed rejection, with all-cause mortality of 27.6%. On univariate analyses, acid suppression and BMI, but not other patient demographics, were associated with rejection. The Kaplan-Meier curve demonstrated decreased rejection with use of acid suppression therapy (log-rank p = 0.03). On multivariate analyses, acid suppression (HR 0.39, p = 0.04) and lower BMI (HR 0.67, p = 0.04) were independently predicted against rejection. Subgroup analyses demonstrated that persistent PPI use was more protective than H2RA or no antireflux medications. CONCLUSIONS: Post-lung transplant exposure to persistent PPI therapy results in the greatest protection against rejection in lung transplant recipients, independent of other clinical predictors including BMI, suggesting that PPI may have antireflux or anti-inflammatory effects in enhancing allograft protection. FAU - Lo, Wai-Kit AU - Lo WK AD - Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA. AD - Department of Gastroenterology, Boston VA Healthcare System, Boston, MA, USA. AD - Harvard Medical School, Boston, MA, USA. FAU - Goldberg, Hilary J AU - Goldberg HJ AD - Harvard Medical School, Boston, MA, USA. AD - Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA, USA. FAU - Boukedes, Steve AU - Boukedes S AD - Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA, USA. FAU - Burakoff, Robert AU - Burakoff R AD - Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA. AD - Harvard Medical School, Boston, MA, USA. FAU - Chan, Walter W AU - Chan WW AD - Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA. wwchan@bwh.harvard.edu. AD - Harvard Medical School, Boston, MA, USA. wwchan@bwh.harvard.edu. LA - eng PT - Journal Article DEP - 20171101 PL - United States TA - Dig Dis Sci JT - Digestive diseases and sciences JID - 7902782 RN - 0 (Proton Pump Inhibitors) SB - IM CIN - Dig Dis Sci. 2018 Feb;63(2):411. PMID: 29282634 CIN - Dig Dis Sci. 2018 Dec;63(12):3518-3519. PMID: 30276567 MH - Adult MH - Aged MH - Female MH - Graft Rejection/*prevention & control MH - Humans MH - Lung/pathology MH - Lung Transplantation/*adverse effects MH - Male MH - Middle Aged MH - Proton Pump Inhibitors/*pharmacology MH - Retrospective Studies OTO - NOTNLM OT - Gastroesophageal reflux OT - Graft rejection OT - Histamine H2 antagonists OT - Lung transplantation OT - Proton pump inhibitors EDAT- 2017/11/03 06:00 MHDA- 2018/05/23 06:00 CRDT- 2017/11/03 06:00 PHST- 2017/09/17 00:00 [received] PHST- 2017/10/23 00:00 [accepted] PHST- 2017/11/03 06:00 [pubmed] PHST- 2018/05/23 06:00 [medline] PHST- 2017/11/03 06:00 [entrez] AID - 10.1007/s10620-017-4827-0 [pii] AID - 10.1007/s10620-017-4827-0 [doi] PST - ppublish SO - Dig Dis Sci. 2018 Feb;63(2):403-410. doi: 10.1007/s10620-017-4827-0. Epub 2017 Nov 1.