Renal Allograft Biopsy Findings in Live-related Renal Transplant Recipients. 2021

Syed Munib, and Tanveer Ahmed, and Raheel Ahmed, and Najam-Ud-Din
Department of Nephrology and Renal Transplantation, Institute of Kidney Diseases, Peshawar, Pakistan.

OBJECTIVE To determine the pattern of histopathology in living-related, kidney transplant recipients (KTRs) from a transplant centre in Khyber Pakhtunkhwa (KPK), Pakistan. METHODS Descriptive, observational study. METHODS Institute of Kidney Diseases, Peshawar, from August 2008 to July 2018. METHODS A retrospective review of graft biopsy reports and clinical charts from living-related, kidney transplant recipients was carried out. Allograft biopsies were done for graft dysfunction with no apparent cause. The biopsy pathology was classified according to updated Banff classifications. The descriptive statistics were used to tabulate the results. RESULTS Out of the 55 biopsies, 51 (92.73%) were from males with mean age of 34.35±9.40 years. Out of 52 percutaneous biopsies, 10 (19.23%) belonged to the normal category. Category 2 (borderline rejection) and 3 (acute/active cellular rejection) were seen in three (5.7%) and one (1.9%) cases, respectively. Interstitial fibrosis/tubular atrophy (Banff Category 5) was observed in 18 (34.62%) cases. Banff Category 6 (others) was seen in 19 (36.5%) cases, in which calcineurin inhibitors (CNI) toxicity was commonest (17 [89.4%] of 19 cases). Mixed lesions were found in 19 (36.5%) cases. Out of the 19 mixed category cases, 12 (63.16%) showed both Category 3 and Category 5 changes with most of the cases showing mild to moderate IF/TA; while one case had severe IF/TA. Three graft nephrectomies were done, one each for recurrent oxalosis, nephroblastoma and fungal infection. CONCLUSIONS Among the studied specimens, mixed lesions were the predominant findings, followed by others (mostly CNI toxicity) and IFTA categories. The frequency of acute/active rejections was low and that of chronic changes higher, in keeping with delayed biopsies. Key Words: Allograft biopsy, Graft dysfunction, Rejection, Kidney.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008297 Male Males
D009392 Nephrectomy Excision of kidney. Heminephrectomy,Heminephrectomies,Nephrectomies
D010154 Pakistan A country located in southern Asia, bordering the Arabian Sea, between India on the east and Iran and Afghanistan on the west and China in the north. The capital is Islamabad. Islamic Republic of Pakistan
D006084 Graft Rejection An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient. Transplant Rejection,Rejection, Transplant,Transplantation Rejection,Graft Rejections,Rejection, Graft,Rejection, Transplantation,Rejections, Graft,Rejections, Transplant,Rejections, Transplantation,Transplant Rejections,Transplantation Rejections
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D016030 Kidney Transplantation The transference of a kidney from one human or animal to another. Grafting, Kidney,Renal Transplantation,Transplantation, Kidney,Transplantation, Renal,Kidney Grafting,Kidney Transplantations,Renal Transplantations,Transplantations, Kidney,Transplantations, Renal

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