[Diagnosis of transplanted heart acute rejection on the basis of endomyocardial biopsy morphologic examination]. / Diagnostika ostroi reaktsii ottorzheniia transplantirovannogo serdtsa po dannym morfologicheskogo issledovaniia éndomiokardial'nykh bioptatov.

Results of morphological diagnosis of acute rejection on the material of 265 endomyocardial biopsies from 26 patients after an orthotopic donor heart transplantation are presented. The structural characteristics of different stages of acute rejection are given which is revealed in 85.7% observations. Ultrastructural myocardial changes in the early postoperative period not connected with the acute rejection crisis but resulting from a reperfusion cardiomyocytes damage are described. Results of electron microscopic examination of myocardium in rejection crisis are also given.