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Abstract Bruneval P, Angelini A, Miller D, Potena L, Loupy A, Zeevi A, Reed EF, Dragun D, Reinsmoen N, Smith RN, West L, Tebutt S, Thum T, Haas M, Mengel M, Revelo P, Fedrigo M, Duong Van Huyen JP, Berry GJ. The 13th Banff Conference on Allograft Pathology was held in Vancouver, British Columbia, Canada from October 5 to 10, 2015. The cardiac session was devoted to current diagnostic issues in heart transplantation with a focus on antibody-mediated rejection (AMR) and small vessel arteriopathy. Specific topics included the strengths and limitations of the current rejection grading system, the central role of microvascular injury in AMR and approaches to semiquantitative assessment of histopathologic and immunophenotypic indicators, the role of AMR in the development of cardiac allograft vasculopathy, the important role of serologic antibody detection in the management of transplant recipients, and the potential application of new molecular approaches to the elucidation of the pathophysiology of AMR and potential for improving the current diagnostic system. Herein we summarize the key points from the presentations, the comprehensive, open and wide-ranging multidisciplinary discussion that was generated, and considerations for future endeavors.
 Figure 3: Spectrum of cardiac allograft vasculopathy (from epicardial arteries to myocardial capillaries). (A) Allograft epicardial coronary artery showing intimal and adventitial inflammation (hematoxylin and eosin [H&E], ×100). (B) Allograft epicardial coronary artery showing intimal fibrosis with shallow fibrin thrombus at the luminal aspect and some entrapped fibrin deeper in the intimal wall (arrows) (H&E, ×20). (C) Allograft epicardial coronary artery with less intimal thickening but dramatic adventitial lymphoid aggregate (asterisk) (H&E, ×20). (D) Allograft epicardial coronary artery showing advanced narrowing with a slit‐like lumen; there is very little outward remodeling of the vessel wall (H&E, ×40). (E) Allograft endomyocardial biopsy photomicrograph after computer‐assisted image analysis for capillary density. This case showed reduced capillaries (CD34 stain, ×200) (MVD, microvascular density). (F) Allograft endomyocardial biopsy photomicrograph after computer‐assisted image analysis for capillary density. This case showed preserved capillary density (CD34 stain, ×200). (G) and (H) Electron photomicrographs of allograft myocardium showing an interstitial capillary with basement membrane multilayering (arrows) (original ×4000 and ×10 000).
 Conference Organizing Committee
Co-Directors Kim Solez Lorraine Racusen 2015 BAnff/CST Meeting, Organizing Corporation (MOC) John Gill Michael Mengel Anthony Jevnikar David Rush Denis Glotz Kim Solez Marcelo Cantarovich Mark Haas Steven Paraskevas Local Organizer Michael Mengel Conference Coordinators Korey Fung Rongjia Sheldon Aditi Raghuveer Preeti Kuttikat Programm Committee Alexandre Loupy, chair Christopher Bellamy Carmen Lefaucheur Mark Hass Banu Sis Kathryn Tinckham Candice Roudfosse Cinthia Beskox Drachenberg Carol Farver W. Dean Wallace Linda C cendales Lynn Cornell Patrick Bruneval 2015 BANFF/CST, October 5-10, 2016 | Vancouver, BC |
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