alexa The Prognostic Value of Late Kidney Transplant Rejectio
ISSN: 2161-0991

Journal of Transplantation Technologies & Research
Open Access

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Research Article

The Prognostic Value of Late Kidney Transplant Rejection Pathology Characteristics

Ekaterina Stolyarevich1,2, Ludmila Artyukhina3, Elena Zakharova2, Irina Kim1,3, Ekaterina Ivanova1 and Natalia Tomilina1,2,3

1Federal Center of Transplantology and Artificial Organs, VI Shumakov, Moscow, Russian Federation

2State University of Medicine and Dentistry, Moscow, Russian Federation

3City Hospital 52, Moscow, Russian Federation

*Corresponding Author:
Elena Zakharova
Department of Nephrology Chair
State University of Medicine and Dentistry
Moscow, Russian Federation
Tel: +7 967 134 6936
Fax: +7 495 945 1756
E-mail: [email protected]

Received date May 09, 2016; Accepted date June 22, 2016; Published date June 29, 2016

Citation: Stolyarevich E, Artyukhina L, Zakharova E, Kim I, Ivanova E, et al. (2016) The Prognostic Value of Late Kidney Transplant Rejection Pathology Characteristics. J Transplant Technol Res 6: 165. doi:10.4172/2161-0991.1000165

Copyright: ©2016 Stolyarevich E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Renal allograft rejection, represented by the wide spectrum of lesions with different pathogenesis, pathology patterns, clinical course and prognosis, still remains the most often cause of late graft dysfunction. Moreover, a combination of several factors, either of which may impact the post-transplant course, generally take place. We aimed to analyze the incidence of late renal allograft rejection variants, and to determine clinical factors and pathology features, influencing prognosis in the specific types of late renal allograft rejection.

The data obtained from 361 patients with acute (n=227) or chronic (n=134) late allograft rejection (mean time after kidney transplantation 48.8 ± 46.1 months) were analyzed retrospectively. C4d expression was found in 34% cases of acute rejection and in 58% cases of chronic rejection (64% in chronic transplant glomerulopathy and 52% in transplant vasculopathy). 5-year graft survival comprised 48% and 24% for acute and chronic transplant rejection respectively (Р<0.01). Combination of acute cell-mediated rejection with chronic transplant rejection did not influence significantly the prognosis for the latter.

Diffuse C4d expression on peritubular capillaries turned to be an independent prognostic factor regardless the pathology variant of renal allograft rejection. In contrast, focal C4d expression had no impact on the prognosis, which did not differ significantly from C4d-negative type. On the other hand, in acute rejection prognosis for C4dpositive forms was worse compared to C4d-negative (55% vs 25%; P <0.01), while in chronic rejection there was no difference between C4d-positive and C4d-negative forms (26% vs 24%; P=NS). In multivariate Cox-model analysis, the following factors appeared to influence the prognosis: presence of chronic transplant glomerulopathy, features of vasculitis, severity of tubulitis, presence of thrombotic micrioangiopathy and prominence of interstitial fibrosis.

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