Chonnam National University Hospital 1 article published in JoVE Medicine Rat Model of Normothermic Ex-Situ Perfused Heterotopic Heart Transplantation Mukhammad Kayumov*1,2,3, In Seok Jeong*2,3, Dowan Kim2,3, Yujin Kwak2, Francis O. Obiweluozor2,3, Namsik Yoon4, Hyo Sin Kim5, Hwa Jin Cho3,6 1Department of Medical Science, Chonnam National University Graduate School, 2Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, 3Cardiovascular and Respiratory Research Team, Chonnam National University Hospital, 4Department of Internal Medicine, Chonnam National University Hospital and Medical School, 5Departments of Surgery, Chonnam National University Hospital and Medical School, 6Department of Pediatrics, Chonnam National University Children’s Hospital, and Medical School Here, we present an assessment protocol of a heterotopically implanted heart after normothermic ex situ preservation in the rat model.