The prevalence of C4d-positive renal allografts in 134 consecutive biopsies in Thai patients

Transplantation Proceedings
B CheunsuchonP Parichatikanond

Abstract

Antibody-mediated rejection (AMR) has been recognized recently as an important cause of graft failure. Detection of C4d in renal allograft biopsies is a proven ancillary technique in the diagnosis of AMR. The prevalence of C4d staining in Western countries varies from 17% to 60% among indication biopsies. There are only a few C4d prevalence studies in an Asian population. The objective of this study was to identify prevalence of C4d among Thai renal transplant patients. Consecutive renal allograft biopsies from 99 patients from 1999 to 2007 were stained for C4d by an immunoperoxidase technique. The biopsy slides were evaluated for the diagnosis according to the Banff'07 classification and histological scores. The relevant clinical data were obtained from clinical records. The prevalence of C4d in renal allografts was reported as a percentage using a descriptive analysis. Chi-square and unpaired Student t tests were used to evaluate the association between clinicopathologic findings and C4d positivity. P values less than .05 were considered significant. The prevalence of positive C4d staining was 16.4%. Fourteen biopsies (10.4%) showed diffuse staining while 8 (5.9%) revealed focal staining. Transplant glomerulopathy, glomerulit...Continue Reading

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Nov 26, 2014·Transplantation Proceedings·N PedrazaC Orozco
May 16, 2014·Kidney International·Ruth Sapir-PichhadzeS Joseph Kim

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