Cardiovascular Diseases & Diagnosis

PJ Arnold

Publications

• Research Article
  The Impact of Time Post Cardiac Transplant on Gene Expression Profile Scores, an Analysis of 32,043 Tests
  Author(s): Bethany A Austin, PJ Arnold and Andrew KaoBethany A Austin, PJ Arnold and Andrew Kao
  
  Background: Gene Expression Profiling (GEP) has been used since 2005 to identify Orthotopic Heart Transplant (OHT) recipients at low risk of allograft rejection. A rise in GEP scores during the first year post OHT has been previously reported. The purpose of this study is to confirm and better characterize this effect of time post-transplant in a larger, unselected cohort. Methods: All commercially obtained GEP scores (XDx Inc., Brisbane, CA) collected between January 2005 and September 2011 were included. Clinical data were available for patient age, gender and dates of transplantation and tests. Results: There were 32,043 GEP tests from 9,272 patients at 108 transplant centers (mean age at testing 54.2 ± 14.7 yrs, 25% women). There was a significant effect of time post transplant on GEP, which rose from 24.. Read More»
  DOI: 10.4172/2329-9517.1000114

  Abstract PDF